+++ /dev/null
-/*
-* UAE - The Un*x Amiga Emulator
-*
-* Custom chip emulation
-*
-* Copyright 1995-2002 Bernd Schmidt
-* Copyright 1995 Alessandro Bissacco
-* Copyright 2000-2009 Toni Wilen
-*/
-
-#include "sysconfig.h"
-#include "sysdeps.h"
-
-#include <ctype.h>
-#include <assert.h>
-
-#include "options.h"
-#include "uae.h"
-#include "gensound.h"
-#include "audio.h"
-#include "sounddep/sound.h"
-#include "events.h"
-#include "memory.h"
-#include "custom.h"
-#include "newcpu.h"
-#include "cia.h"
-#include "disk.h"
-#include "blitter.h"
-#include "xwin.h"
-#include "inputdevice.h"
-#include "keybuf.h"
-#include "serial.h"
-#include "autoconf.h"
-#include "traps.h"
-#include "gui.h"
-#include "picasso96.h"
-#include "drawing.h"
-#include "savestate.h"
-#include "ar.h"
-#ifdef AVIOUTPUT
-#include "avioutput.h"
-#endif
-#include "debug.h"
-#include "akiko.h"
-#include "cdtv.h"
-#if defined(ENFORCER)
-#include "enforcer.h"
-#endif
-#include "gayle.h"
-#include "gfxfilter.h"
-#include "a2091.h"
-#include "a2065.h"
-#include "ncr_scsi.h"
-
-#define CUSTOM_DEBUG 0
-#define SPRITE_DEBUG 0
-#define SPRITE_DEBUG_MINY 0x0
-#define SPRITE_DEBUG_MAXY 0x100
-#define SPR0_HPOS 0x15
-#define MAX_SPRITES 8
-#define SPRITE_COLLISIONS
-#define SPEEDUP
-#define AUTOSCALE_SPRITES 1
-
-#define SPRBORDER 0
-
-STATIC_INLINE int nocustom (void)
-{
- if (picasso_on && currprefs.picasso96_nocustom)
- return 1;
- return 0;
-}
-
-void uae_abort (const TCHAR *format,...)
-{
- static int nomore;
- va_list parms;
- TCHAR buffer[1000];
-
- va_start (parms, format);
- _vsntprintf (buffer, sizeof (buffer) - 1, format, parms );
- va_end (parms);
- if (nomore) {
- write_log (L"%s\n", buffer);
- return;
- }
- gui_message (buffer);
- nomore = 1;
-}
-
-#if 0
-void customhack_put (struct customhack *ch, uae_u16 v, int hpos)
-{
- ch->v = v;
- ch->vpos = vpos;
- ch->hpos = hpos;
-}
-
-uae_u16 customhack_get (struct customhack *ch, int hpos)
-{
- if (ch->vpos == vpos && ch->hpos == hpos) {
- ch->vpos = -1;
- return 0xffff;
- }
- return ch->v;
-}
-#endif
-
-uae_u16 last_custom_value1;
-
-static unsigned int n_consecutive_skipped = 0;
-static unsigned int total_skipped = 0;
-
-STATIC_INLINE void sync_copper (int hpos);
-
-
-/* Events */
-
-unsigned long int event_cycles, nextevent, is_lastline, currcycle;
-long cycles_to_next_event;
-long max_cycles_to_next_event;
-long cycles_to_hsync_event;
-
-static int rpt_did_reset;
-struct ev eventtab[ev_max];
-struct ev2 eventtab2[ev2_max];
-
-volatile frame_time_t vsynctime, vsyncmintime;
-
-#ifdef JIT
-extern uae_u8* compiled_code;
-#endif
-
-int vpos;
-int hack_vpos;
-static int hack_vpos2, hack_vpos2vpos;
-static int lof, lol;
-static int next_lineno, prev_lineno;
-static enum nln_how nextline_how;
-static int lof_changed = 0;
-static int scandoubled_line;
-
-/* Stupid genlock-detection prevention hack.
-* We should stop calling vsync_handler() and
-* hstop_handler() completely but it is not
-* worth the trouble..
-*/
-static int vpos_previous, hpos_previous;
-static int vpos_lpen, hpos_lpen, lightpen_triggered;
-int lightpen_x, lightpen_y, lightpen_cx, lightpen_cy;
-
-static uae_u32 sprtaba[256],sprtabb[256];
-static uae_u32 sprite_ab_merge[256];
-/* Tables for collision detection. */
-static uae_u32 sprclx[16], clxmask[16];
-
-/* AGA T genlock bit in color registers */
-static uae_u8 color_regs_aga_genlock[256];
-
-/*
-* Hardware registers of all sorts.
-*/
-
-static int REGPARAM3 custom_wput_1 (int, uaecptr, uae_u32, int) REGPARAM;
-
-static uae_u16 cregs[256];
-
-uae_u16 intena, intreq, intreqr;
-uae_u16 dmacon;
-uae_u16 adkcon; /* used by audio code */
-
-static uae_u32 cop1lc, cop2lc, copcon;
-
-int maxhpos = MAXHPOS_PAL;
-int maxhpos_short = MAXHPOS_PAL;
-int maxvpos = MAXVPOS_PAL;
-int maxvpos_max = MAXVPOS_PAL;
-int minfirstline = VBLANK_ENDLINE_PAL;
-int vblank_hz = VBLANK_HZ_PAL, fake_vblank_hz, vblank_skip, doublescan;
-frame_time_t syncbase;
-static int fmode;
-uae_u16 beamcon0, new_beamcon0;
-uae_u16 vtotal = MAXVPOS_PAL, htotal = MAXHPOS_PAL;
-static uae_u16 hsstop, hbstrt, hbstop, vsstop, vbstrt, vbstop, hsstrt, vsstrt, hcenter;
-static int ciavsyncmode;
-
-#define HSYNCTIME (maxhpos * CYCLE_UNIT);
-
-/* This is but an educated guess. It seems to be correct, but this stuff
-* isn't documented well. */
-struct sprite {
- uaecptr pt;
- int xpos;
- int vstart;
- int vstop;
- int dblscan; /* AGA SSCAN2 */
- int armed;
- int dmastate;
- int dmacycle;
- int ptxhpos;
-};
-
-static struct sprite spr[MAX_SPRITES];
-
-uaecptr sprite_0;
-int sprite_0_width, sprite_0_height, sprite_0_doubled;
-uae_u32 sprite_0_colors[4];
-static uae_u8 magic_sprite_mask = 0xff;
-
-static int sprite_vblank_endline = VBLANK_SPRITE_PAL;
-
-static unsigned int sprctl[MAX_SPRITES], sprpos[MAX_SPRITES];
-#ifdef AGA
-static uae_u16 sprdata[MAX_SPRITES][4], sprdatb[MAX_SPRITES][4];
-#else
-static uae_u16 sprdata[MAX_SPRITES][1], sprdatb[MAX_SPRITES][1];
-#endif
-static int sprite_last_drawn_at[MAX_SPRITES];
-static int last_sprite_point, nr_armed;
-static int sprite_width, sprres;
-int sprite_buffer_res;
-
-#ifdef CPUEMU_12
-uae_u8 cycle_line[256];
-#endif
-
-static uae_u16 bplxdat[8];
-static int bpl1dat_written, bpl1dat_early;
-static uae_s16 bpl1mod, bpl2mod;
-static uaecptr prevbpl[2][MAXVPOS][8];
-static uaecptr bplpt[8], bplptx[8];
-/* Used as a debugging aid, to offset any bitplane temporarily. */
-int bpl_off[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
-
-/*static int blitcount[256]; blitter debug */
-
-static struct color_entry current_colors;
-static unsigned int bplcon0, bplcon1, bplcon2, bplcon3, bplcon4;
-static unsigned int bplcon0d, bplcon0dd, bplcon0_res, bplcon0_planes, bplcon0_planes_limit;
-static unsigned int diwstrt, diwstop, diwhigh;
-static int diwhigh_written;
-static unsigned int ddfstrt, ddfstop, ddfstrt_old_hpos;
-static int ddf_change, badmode, diw_change;
-static int fmode;
-static int bplcon1_hpos;
-
-/* The display and data fetch windows */
-
-enum diw_states
-{
- DIW_waiting_start, DIW_waiting_stop
-};
-
-static int plffirstline, plflastline;
-int plffirstline_total, plflastline_total;
-static int plfstrt_start, plfstrt, plfstop;
-static int sprite_minx, sprite_maxx;
-static int first_bpl_vpos;
-static int last_diw_pix_hpos, last_ddf_pix_hpos;
-static int last_decide_line_hpos, last_sprite_decide_line_hpos;
-static int last_fetch_hpos, last_sprite_hpos;
-static int diwfirstword, diwlastword;
-static int plfleft_real;
-static enum diw_states diwstate, hdiwstate, ddfstate;
-int first_planes_vpos, last_planes_vpos;
-int diwfirstword_total, diwlastword_total;
-int ddffirstword_total, ddflastword_total;
-int firstword_bplcon1;
-
-static int last_copper_hpos;
-static int copper_access;
-
-/* Sprite collisions */
-static unsigned int clxdat, clxcon, clxcon2, clxcon_bpl_enable, clxcon_bpl_match;
-
-enum copper_states {
- COP_stop,
- COP_read1,
- COP_read2,
- COP_bltwait,
- COP_wait_in2,
- COP_skip_in2,
- COP_wait1,
- COP_wait,
- COP_skip1,
- COP_strobe_delay1,
- COP_strobe_delay2,
- COP_strobe_extra, // just to skip current cycle when CPU wrote to COPJMP
- COP_start_delay
-};
-
-struct copper {
- /* The current instruction words. */
- unsigned int i1, i2;
- unsigned int saved_i1, saved_i2;
- enum copper_states state, state_prev;
- /* Instruction pointer. */
- uaecptr ip, saved_ip;
- int hpos, vpos;
- unsigned int ignore_next;
- int vcmp, hcmp;
-
- int strobe; /* COPJMP1 / COPJMP2 accessed */
- int last_write, last_write_hpos;
- int moveaddr, movedata, movedelay;
-};
-
-static struct copper cop_state;
-static int copper_enabled_thisline;
-static int cop_min_waittime;
-/*
-* Statistics
-*/
-
-/* Used also by bebox.cpp */
-unsigned long int frametime = 0, lastframetime = 0, timeframes = 0;
-unsigned long hsync_counter = 0, vsync_counter = 0, ciavsync_counter = 0;
-unsigned long int idletime;
-int bogusframe;
-
-/* Recording of custom chip register changes. */
-static int current_change_set;
-
-#ifdef OS_WITHOUT_MEMORY_MANAGEMENT
-/* sam: Those arrays uses around 7Mb of BSS... That seems */
-/* too much for AmigaDOS (uae crashes as soon as one loads */
-/* it. So I use a different strategy here (realloc the */
-/* arrays when needed. That strategy might be usefull for */
-/* computer with low memory. */
-struct sprite_entry *sprite_entries[2];
-struct color_change *color_changes[2];
-static int max_sprite_entry = 400;
-static int delta_sprite_entry = 0;
-static int max_color_change = 400;
-static int delta_color_change = 0;
-#else
-static struct sprite_entry sprite_entries[2][MAX_SPR_PIXELS / 16];
-static struct color_change color_changes[2][MAX_REG_CHANGE];
-#endif
-
-struct decision line_decisions[2 * (MAXVPOS + 1) + 1];
-static struct draw_info line_drawinfo[2][2 * (MAXVPOS + 1) + 1];
-#define COLOR_TABLE_SIZE (MAXVPOS + 1) * 2
-static struct color_entry color_tables[2][COLOR_TABLE_SIZE];
-
-static int next_sprite_entry = 0;
-static int prev_next_sprite_entry;
-static int next_sprite_forced = 1;
-
-struct sprite_entry *curr_sprite_entries, *prev_sprite_entries;
-struct color_change *curr_color_changes, *prev_color_changes;
-struct draw_info *curr_drawinfo, *prev_drawinfo;
-struct color_entry *curr_color_tables, *prev_color_tables;
-
-static int next_color_change;
-static int next_color_entry, remembered_color_entry;
-static int color_src_match, color_dest_match, color_compare_result;
-
-static uae_u32 thisline_changed;
-
-#ifdef SMART_UPDATE
-#define MARK_LINE_CHANGED do { thisline_changed = 1; } while (0)
-#else
-#define MARK_LINE_CHANGED do { ; } while (0)
-#endif
-
-static struct decision thisline_decision;
-static int fetch_cycle, fetch_modulo_cycle;
-
-enum plfstate
-{
- plf_idle,
- plf_start,
- plf_active,
- plf_passed_stop,
- plf_passed_stop2,
- plf_end
-} plf_state;
-
-enum fetchstate {
- fetch_not_started,
- fetch_started,
- fetch_was_plane0
-} fetch_state;
-
-/*
-* helper functions
-*/
-
-STATIC_INLINE int ecsshres(void)
-{
- return bplcon0_res == RES_SUPERHIRES && (currprefs.chipset_mask & CSMASK_ECS_DENISE) && !(currprefs.chipset_mask & CSMASK_AGA);
-}
-
-STATIC_INLINE int nodraw (void)
-{
- return !currprefs.cpu_cycle_exact && framecnt != 0;
-}
-
-static int doflickerfix (void)
-{
- return currprefs.gfx_linedbl && doublescan < 0;
-}
-
-uae_u32 get_copper_address (int copno)
-{
- switch (copno) {
- case 1: return cop1lc;
- case 2: return cop2lc;
- case -1: return cop_state.ip;
- default: return 0;
- }
-}
-
-int rpt_available = 0;
-
-void reset_frame_rate_hack (void)
-{
- if (currprefs.m68k_speed != -1)
- return;
-
- if (! rpt_available) {
- currprefs.m68k_speed = 0;
- return;
- }
-
- rpt_did_reset = 1;
- is_lastline = 0;
- vsyncmintime = read_processor_time () + vsynctime;
- write_log (L"Resetting frame rate hack\n");
-}
-
-STATIC_INLINE void setclr (uae_u16 *p, uae_u16 val)
-{
- if (val & 0x8000)
- *p |= val & 0x7FFF;
- else
- *p &= ~val;
-}
-
-STATIC_INLINE alloc_cycle (int hpos, int type)
-{
-#ifdef CPUEMU_12
-#if 0
- if (cycle_line[hpos])
- write_log (L"hpos=%d, old=%d, new=%d\n", hpos, cycle_line[hpos], type);
- if ((type == CYCLE_CPU || type == CYCLE_COPPER) && (hpos & 1))
- write_log (L"odd %d cycle %d\n", hpos);
- if (!(hpos & 1) && (type == CYCLE_SPRITE || type == CYCLE_REFRESH || type == CYCLE_MISC))
- write_log (L"even %d cycle %d\n", type, hpos);
-#endif
- cycle_line[hpos] = type;
-#endif
-}
-STATIC_INLINE alloc_cycle_maybe (int hpos, int type)
-{
- if (cycle_line[hpos] == 0)
- alloc_cycle (hpos, type);
-}
-
-void alloc_cycle_ext(int hpos, int type)
-{
- alloc_cycle (hpos, type);
-}
-
-static void hsyncdelay (void)
-{
-#if 0
- static int prevhpos;
- while (current_hpos () == prevhpos)
- do_cycles(CYCLE_UNIT);
- prevhpos = current_hpos();
-#endif
-}
-
-static void update_mirrors (void)
-{
- aga_mode = (currprefs.chipset_mask & CSMASK_AGA) ? 1 : 0;
- direct_rgb = aga_mode;
-}
-
-STATIC_INLINE uae_u8 *pfield_xlateptr (uaecptr plpt, int bytecount)
-{
- if (!chipmem_bank.check (plpt, bytecount)) {
- static int count = 0;
- if (!count)
- count++, write_log (L"Warning: Bad playfield pointer\n");
- return NULL;
- }
- return chipmem_bank.xlateaddr (plpt);
-}
-
-STATIC_INLINE void docols (struct color_entry *colentry)
-{
- int i;
-
-#ifdef AGA
- if (currprefs.chipset_mask & CSMASK_AGA) {
- for (i = 0; i < 256; i++) {
- int v = color_reg_get (colentry, i);
- if (v < 0 || v > 16777215)
- continue;
- colentry->acolors[i] = getxcolor (v);
- }
- } else {
-#endif
- for (i = 0; i < 32; i++) {
- int v = color_reg_get (colentry, i);
- if (v < 0 || v > 4095)
- continue;
- colentry->acolors[i] = getxcolor (v);
- }
-#ifdef AGA
- }
-#endif
-}
-
-extern struct color_entry colors_for_drawing;
-
-void notice_new_xcolors (void)
-{
- int i;
-
- update_mirrors ();
- docols (¤t_colors);
- docols (&colors_for_drawing);
- for (i = 0; i < (MAXVPOS + 1) * 2; i++) {
- docols (color_tables[0] + i);
- docols (color_tables[1] + i);
- }
-}
-
-static void do_sprites (int currhp);
-
-static void remember_ctable (void)
-{
- if (remembered_color_entry == -1) {
- /* The colors changed since we last recorded a color map. Record a
- * new one. */
- color_reg_cpy (curr_color_tables + next_color_entry, ¤t_colors);
- remembered_color_entry = next_color_entry++;
- }
- thisline_decision.ctable = remembered_color_entry;
- if (color_src_match == -1 || color_dest_match != remembered_color_entry
- || line_decisions[next_lineno].ctable != color_src_match)
- {
- /* The remembered comparison didn't help us - need to compare again. */
- int oldctable = line_decisions[next_lineno].ctable;
- int changed = 0;
-
- if (oldctable == -1) {
- changed = 1;
- color_src_match = color_dest_match = -1;
- } else {
- color_compare_result = color_reg_cmp (&prev_color_tables[oldctable], ¤t_colors) != 0;
- if (color_compare_result)
- changed = 1;
- color_src_match = oldctable;
- color_dest_match = remembered_color_entry;
- }
- thisline_changed |= changed;
- } else {
- /* We know the result of the comparison */
- if (color_compare_result)
- thisline_changed = 1;
- }
-}
-
-static void remember_ctable_for_border (void)
-{
- remember_ctable ();
-}
-
-/* Called to determine the state of the horizontal display window state
-* machine at the current position. It might have changed since we last
-* checked. */
-static void decide_diw (int hpos)
-{
- /* Last hpos = hpos + 0.5, eg. normal PAL end hpos is 227.5 * 2 = 455 */
- int pix_hpos = coord_diw_to_window_x (hpos == maxhpos ? hpos * 2 + 1 : hpos * 2);
- if (hdiwstate == DIW_waiting_start && thisline_decision.diwfirstword == -1
- && pix_hpos >= diwfirstword && last_diw_pix_hpos < diwfirstword)
- {
- thisline_decision.diwfirstword = diwfirstword < 0 ? 0 : diwfirstword;
- hdiwstate = DIW_waiting_stop;
- }
- if (hdiwstate == DIW_waiting_stop && thisline_decision.diwlastword == -1
- && pix_hpos >= diwlastword && last_diw_pix_hpos < diwlastword)
- {
- thisline_decision.diwlastword = diwlastword < 0 ? 0 : diwlastword;
- hdiwstate = DIW_waiting_start;
- }
- last_diw_pix_hpos = pix_hpos;
-}
-
-static int fetchmode;
-static int real_bitplane_number[3][3][9];
-
-/* Disable bitplane DMA if planes > available DMA slots. This is needed
-e.g. by the Sanity WOC demo (at the "Party Effect"). */
-STATIC_INLINE int GET_PLANES_LIMIT (uae_u16 bc0)
-{
- int res = GET_RES_AGNUS (bc0);
- int planes = GET_PLANES (bc0);
- return real_bitplane_number[fetchmode][res][planes];
-}
-
-/* The HRM says 0xD8, but that can't work... */
-#define HARD_DDF_STOP 0xd4
-#define HARD_DDF_START 0x18
-
-static void add_modulos (void)
-{
- int m1, m2;
-
- if (fmode & 0x4000) {
- if (((diwstrt >> 8) ^ vpos) & 1)
- m1 = m2 = bpl2mod;
- else
- m1 = m2 = bpl1mod;
- } else {
- m1 = bpl1mod;
- m2 = bpl2mod;
- }
-
- switch (bplcon0_planes_limit) {
-#ifdef AGA
- case 8: bplpt[7] += m2; bplptx[7] += m2;
- case 7: bplpt[6] += m1; bplptx[6] += m1;
-#endif
- case 6: bplpt[5] += m2; bplptx[5] += m2;
- case 5: bplpt[4] += m1; bplptx[4] += m1;
- case 4: bplpt[3] += m2; bplptx[3] += m2;
- case 3: bplpt[2] += m1; bplptx[2] += m1;
- case 2: bplpt[1] += m2; bplptx[1] += m2;
- case 1: bplpt[0] += m1; bplptx[0] += m1;
- }
-}
-
-static void finish_playfield_line (void)
-{
- /* The latter condition might be able to happen in interlaced frames. */
- if (vpos >= minfirstline && (thisframe_first_drawn_line == -1 || vpos < thisframe_first_drawn_line))
- thisframe_first_drawn_line = vpos;
- thisframe_last_drawn_line = vpos;
-
-#ifdef SMART_UPDATE
- if (line_decisions[next_lineno].plflinelen != thisline_decision.plflinelen
- || line_decisions[next_lineno].plfleft != thisline_decision.plfleft
- || line_decisions[next_lineno].bplcon0 != thisline_decision.bplcon0
- || line_decisions[next_lineno].bplcon2 != thisline_decision.bplcon2
-#ifdef ECS_DENISE
- || line_decisions[next_lineno].bplcon3 != thisline_decision.bplcon3
-#endif
-#ifdef AGA
- || line_decisions[next_lineno].bplcon4 != thisline_decision.bplcon4
-#endif
- )
-#endif /* SMART_UPDATE */
- thisline_changed = 1;
-}
-
-/* The fetch unit mainly controls ddf stop. It's the number of cycles that
-are contained in an indivisible block during which ddf is active. E.g.
-if DDF starts at 0x30, and fetchunit is 8, then possible DDF stops are
-0x30 + n * 8. */
-static int fetchunit, fetchunit_mask;
-/* The delay before fetching the same bitplane again. Can be larger than
-the number of bitplanes; in that case there are additional empty cycles
-with no data fetch (this happens for high fetchmodes and low
-resolutions). */
-static int fetchstart, fetchstart_shift, fetchstart_mask;
-/* fm_maxplane holds the maximum number of planes possible with the current
-fetch mode. This selects the cycle diagram:
-8 planes: 73516240
-4 planes: 3120
-2 planes: 10. */
-static int fm_maxplane, fm_maxplane_shift;
-
-/* The corresponding values, by fetchmode and display resolution. */
-static const int fetchunits[] = { 8,8,8,0, 16,8,8,0, 32,16,8,0 };
-static const int fetchstarts[] = { 3,2,1,0, 4,3,2,0, 5,4,3,0 };
-static const int fm_maxplanes[] = { 3,2,1,0, 3,3,2,0, 3,3,3,0 };
-
-static int cycle_diagram_table[3][3][9][32];
-static int cycle_diagram_free_cycles[3][3][9];
-static int cycle_diagram_total_cycles[3][3][9];
-static int *curr_diagram;
-static const int cycle_sequences[3 * 8] = { 2,1,2,1,2,1,2,1, 4,2,3,1,4,2,3,1, 8,4,6,2,7,3,5,1 };
-
-static void debug_cycle_diagram (void)
-{
- int fm, res, planes, cycle, v;
- TCHAR aa;
-
- for (fm = 0; fm <= 2; fm++) {
- write_log (L"FMODE %d\n=======\n", fm);
- for (res = 0; res <= 2; res++) {
- for (planes = 0; planes <= 8; planes++) {
- write_log (L"%d: ",planes);
- for (cycle = 0; cycle < 32; cycle++) {
- v=cycle_diagram_table[fm][res][planes][cycle];
- if (v==0) aa='-'; else if(v>0) aa='1'; else aa='X';
- write_log (L"%c",aa);
- }
- write_log (L" %d:%d\n",
- cycle_diagram_free_cycles[fm][res][planes], cycle_diagram_total_cycles[fm][res][planes]);
- }
- write_log (L"\n");
- }
- }
- fm=0;
-}
-
-static void create_cycle_diagram_table (void)
-{
- int fm, res, cycle, planes, rplanes, v;
- int fetch_start, max_planes, freecycles;
- const int *cycle_sequence;
-
- for (fm = 0; fm <= 2; fm++) {
- for (res = 0; res <= 2; res++) {
- max_planes = fm_maxplanes[fm * 4 + res];
- fetch_start = 1 << fetchstarts[fm * 4 + res];
- cycle_sequence = &cycle_sequences[(max_planes - 1) * 8];
- max_planes = 1 << max_planes;
- for (planes = 0; planes <= 8; planes++) {
- freecycles = 0;
- for (cycle = 0; cycle < 32; cycle++)
- cycle_diagram_table[fm][res][planes][cycle] = -1;
- if (planes <= max_planes) {
- for (cycle = 0; cycle < fetch_start; cycle++) {
- if (cycle < max_planes && planes >= cycle_sequence[cycle & 7]) {
- v = cycle_sequence[cycle & 7];
- } else {
- v = 0;
- freecycles++;
- }
- cycle_diagram_table[fm][res][planes][cycle] = v;
- }
- }
- cycle_diagram_free_cycles[fm][res][planes] = freecycles;
- cycle_diagram_total_cycles[fm][res][planes] = fetch_start;
- rplanes = planes;
- if (rplanes > max_planes)
- rplanes = 0;
- if (rplanes == 7 && fm == 0 && res == 0 && !(currprefs.chipset_mask & CSMASK_AGA))
- rplanes = 4;
- real_bitplane_number[fm][res][planes] = rplanes;
- }
- }
- }
-#if 0
- debug_cycle_diagram ();
-#endif
-}
-
-
-/* Used by the copper. */
-static int estimated_last_fetch_cycle;
-static int cycle_diagram_shift;
-
-static void estimate_last_fetch_cycle (int hpos)
-{
- int fetchunit = fetchunits[fetchmode * 4 + bplcon0_res];
-
- if (plf_state < plf_passed_stop) {
- int stop = plfstop < hpos || plfstop > HARD_DDF_STOP ? HARD_DDF_STOP : plfstop;
- /* We know that fetching is up-to-date up until hpos, so we can use fetch_cycle. */
- int fetch_cycle_at_stop = fetch_cycle + (stop - hpos);
- int starting_last_block_at = (fetch_cycle_at_stop + fetchunit - 1) & ~(fetchunit - 1);
-
- estimated_last_fetch_cycle = hpos + (starting_last_block_at - fetch_cycle) + fetchunit;
- } else {
- int starting_last_block_at = (fetch_cycle + fetchunit - 1) & ~(fetchunit - 1);
- if (plf_state == plf_passed_stop2)
- starting_last_block_at -= fetchunit;
-
- estimated_last_fetch_cycle = hpos + (starting_last_block_at - fetch_cycle) + fetchunit;
- }
-}
-
-static uae_u32 outword[MAX_PLANES];
-static int out_nbits, out_offs;
-static uae_u32 todisplay[MAX_PLANES][4];
-static uae_u32 fetched[MAX_PLANES];
-#ifdef AGA
-static uae_u32 fetched_aga0[MAX_PLANES];
-static uae_u32 fetched_aga1[MAX_PLANES];
-#endif
-
-/* Expansions from bplcon0/bplcon1. */
-static int toscr_res, toscr_nr_planes, toscr_nr_planes2, fetchwidth;
-static int toscr_delay1, toscr_delay2;
-
-/* The number of bits left from the last fetched words.
-This is an optimization - conceptually, we have to make sure the result is
-the same as if toscr is called in each clock cycle. However, to speed this
-up, we accumulate display data; this variable keeps track of how much.
-Thus, once we do call toscr_nbits (which happens at least every 16 bits),
-we can do more work at once. */
-static int toscr_nbits;
-
-/* undocumented bitplane delay hardware feature */
-static int delayoffset;
-
-STATIC_INLINE void compute_delay_offset (void)
-{
- delayoffset = (16 << fetchmode) - (((plfstrt - HARD_DDF_START) & fetchstart_mask) << 1);
-#if 0
- /* maybe we can finally get rid of this stupid table.. */
- if (tmp == 4)
- delayoffset = 4; // Loons Docs
- else if (tmp == 8)
- delayoffset = 8;
- else if (tmp == 12) // Loons Docs
- delayoffset = 4;
- else if (tmp == 16) /* Overkill AGA */
- delayoffset = 48;
- else if (tmp == 24) /* AB 2 */
- delayoffset = 8;
- else if (tmp == 32)
- delayoffset = 32;
- else if (tmp == 48) /* Pinball Illusions AGA, ingame */
- delayoffset = 16;
- else /* what about 40 and 56? */
- delayoffset = 0;
- //write_log (L"%d:%d ", vpos, delayoffset);
-#endif
-}
-
-static void record_color_change2 (int hpos, int regno, unsigned long value)
-{
- curr_color_changes[next_color_change].linepos = hpos * 2;
- curr_color_changes[next_color_change].regno = regno;
- curr_color_changes[next_color_change++].value = value;
- curr_color_changes[next_color_change].regno = -1;
-}
-
-static int isehb (uae_u16 bplcon0, uae_u16 bplcon2)
-{
- int bplehb;
- if (currprefs.chipset_mask & CSMASK_AGA)
- bplehb = (bplcon0 & 0x7010) == 0x6000;
- else if (currprefs.chipset_mask & CSMASK_ECS_DENISE)
- bplehb = ((bplcon0 & 0xFC00) == 0x6000 || (bplcon0 & 0xFC00) == 0x7000);
- else
- bplehb = ((bplcon0 & 0xFC00) == 0x6000 || (bplcon0 & 0xFC00) == 0x7000) && !currprefs.cs_denisenoehb;
- return bplehb;
-}
-
-// OCS/ECS, lores, 7 planes = 4 "real" planes + BPL5DAT and BPL6DAT as 5th and 6th plane
-STATIC_INLINE int isocs7planes (void)
-{
- return !(currprefs.chipset_mask & CSMASK_AGA) && bplcon0_res == 0 && bplcon0_planes == 7;
-}
-
-int is_bitplane_dma (int hpos)
-{
- if (fetch_state == fetch_not_started || hpos < plfstrt)
- return 0;
- if ((plf_state == plf_end && hpos >= thisline_decision.plfright)
- || hpos >= estimated_last_fetch_cycle)
- return 0;
- return curr_diagram[(hpos - cycle_diagram_shift) & fetchstart_mask];
-}
-
-STATIC_INLINE int is_bitplane_dma_inline (int hpos)
-{
- if (fetch_state == fetch_not_started || hpos < plfstrt)
- return 0;
- if ((plf_state == plf_end && hpos >= thisline_decision.plfright)
- || hpos >= estimated_last_fetch_cycle)
- return 0;
- return curr_diagram[(hpos - cycle_diagram_shift) & fetchstart_mask];
-}
-
-static void update_denise (int hpos)
-{
- toscr_res = GET_RES_DENISE (bplcon0d);
- if (bplcon0dd != bplcon0d) {
- record_color_change2 (hpos, 0x100 + 0x1000, bplcon0d);
- bplcon0dd = bplcon0d;
- }
- toscr_nr_planes = GET_PLANES (bplcon0d);
- if (isocs7planes ()) {
- if (toscr_nr_planes2 < 6)
- toscr_nr_planes2 = 6;
- } else {
- toscr_nr_planes2 = toscr_nr_planes;
- }
-}
-
-static int bpldmasetuphpos;
-static int bpldmasetupphase;
-
-/* set currently active Agnus bitplane DMA sequence */
-static void setup_fmodes (int hpos)
-{
- switch (fmode & 3)
- {
- case 0:
- fetchmode = 0;
- break;
- case 1:
- case 2:
- fetchmode = 1;
- break;
- case 3:
- fetchmode = 2;
- break;
- }
- badmode = GET_RES_AGNUS (bplcon0) != GET_RES_DENISE (bplcon0);
- bplcon0_res = GET_RES_AGNUS (bplcon0);
- bplcon0_planes = GET_PLANES (bplcon0);
- bplcon0_planes_limit = GET_PLANES_LIMIT (bplcon0);
- fetchunit = fetchunits[fetchmode * 4 + bplcon0_res];
- fetchunit_mask = fetchunit - 1;
- fetchstart_shift = fetchstarts[fetchmode * 4 + bplcon0_res];
- fetchstart = 1 << fetchstart_shift;
- fetchstart_mask = fetchstart - 1;
- fm_maxplane_shift = fm_maxplanes[fetchmode * 4 + bplcon0_res];
- fm_maxplane = 1 << fm_maxplane_shift;
- fetch_modulo_cycle = fetchunit - fetchstart;
- if (is_bitplane_dma (hpos - 1))
- cycle_line[hpos - 1] = 1;
- curr_diagram = cycle_diagram_table[fetchmode][bplcon0_res][bplcon0_planes_limit];
- estimate_last_fetch_cycle (hpos);
- if (bpldmasetuphpos >= 0 && debug_dma)
- record_dma_event (DMA_EVENT_BPLFETCHUPDATE, hpos, vpos);
- bpldmasetuphpos = -1;
- bpldmasetupphase = 0;
- ddf_change = vpos;
-}
-
-static void BPLCON0_Denise (int hpos, uae_u16 v);
-
-// writing to BPLCON0 adds 4 cycle delay before Agnus bitplane DMA sequence changes
-// (Note that Denise sees the change after 1 cycle)
-// AGA needs extra cycle in some specific situations (Brian The Lion "dialog") but not
-// in all situations (Superstardust weapon panel)
-#define BPLCON_AGNUS_DELAY (4 + (bplcon0_planes == 8 ? 1 : 0))
-#define BPLCON_DENISE_DELAY 1
-
-static void maybe_setup_fmodes (int hpos)
-{
- switch (bpldmasetupphase)
- {
- case 0:
- BPLCON0_Denise (hpos, bplcon0);
- bpldmasetupphase++;
- bpldmasetuphpos += BPLCON_AGNUS_DELAY - BPLCON_DENISE_DELAY;
- break;
- case 1:
- setup_fmodes (hpos);
- break;
- }
-}
-
-STATIC_INLINE maybe_check (int hpos)
-{
- if (bpldmasetuphpos > 0 && hpos >= bpldmasetuphpos)
- maybe_setup_fmodes (hpos);
-}
-
-static void bpldmainitdelay (int hpos)
-{
- int hposa;
-
- hposa = hpos + BPLCON_AGNUS_DELAY;
- ddf_change = vpos;
- if (hposa < 0x14) {
- BPLCON0_Denise (hpos, bplcon0);
- setup_fmodes (hpos);
- return;
- }
- if (bpldmasetuphpos < 0) {
- bpldmasetupphase = 0;
- bpldmasetuphpos = hpos + BPLCON_DENISE_DELAY;
- }
-}
-
-/* Expand bplcon0/bplcon1 into the toscr_xxx variables. */
-static void compute_toscr_delay_1 (int bplcon1)
-{
- int delay1 = (bplcon1 & 0x0f) | ((bplcon1 & 0x0c00) >> 6);
- int delay2 = ((bplcon1 >> 4) & 0x0f) | (((bplcon1 >> 4) & 0x0c00) >> 6);
- int shdelay1 = (bplcon1 >> 12) & 3;
- int shdelay2 = (bplcon1 >> 8) & 3;
- int delaymask;
- int fetchwidth = 16 << fetchmode;
-
- delay1 += delayoffset;
- delay2 += delayoffset;
- delaymask = (fetchwidth - 1) >> toscr_res;
- toscr_delay1 = (delay1 & delaymask) << toscr_res;
- toscr_delay1 |= shdelay1 >> (RES_MAX - toscr_res);
- toscr_delay2 = (delay2 & delaymask) << toscr_res;
- toscr_delay2 |= shdelay2 >> (RES_MAX - toscr_res);
-}
-
-static void compute_toscr_delay (int hpos, int bplcon1)
-{
- update_denise (hpos);
- compute_toscr_delay_1 (bplcon1);
-}
-
-STATIC_INLINE void clear_fetchbuffer (uae_u32 *ptr, int nwords)
-{
- int i;
-
- if (! thisline_changed) {
- for (i = 0; i < nwords; i++) {
- if (ptr[i]) {
- thisline_changed = 1;
- break;
- }
- }
- }
- memset (ptr, 0, nwords * 4);
-}
-
-static void update_toscr_planes (void)
-{
- if (toscr_nr_planes2 > thisline_decision.nr_planes) {
- int j;
- for (j = thisline_decision.nr_planes; j < toscr_nr_planes2; j++)
- clear_fetchbuffer ((uae_u32 *)(line_data[next_lineno] + 2 * MAX_WORDS_PER_LINE * j), out_offs);
- thisline_decision.nr_planes = toscr_nr_planes2;
- }
-}
-
-STATIC_INLINE void maybe_first_bpl1dat (int hpos)
-{
- if (thisline_decision.plfleft != -1) {
- // early bpl1day crap fix (Sequential engine animation)
- if (plfleft_real == -1) {
- int i;
- for (i = 0; i < thisline_decision.nr_planes; i++) {
- todisplay[i][0] = 0;
-#ifdef AGA
- todisplay[i][1] = 0;
- todisplay[i][2] = 0;
- todisplay[i][3] = 0;
-#endif
- }
- plfleft_real = hpos;
- bpl1dat_early = 1;
- }
- } else {
- plfleft_real = thisline_decision.plfleft = hpos;
- compute_delay_offset ();
- }
-}
-
-STATIC_INLINE void fetch (int nr, int fm, int hpos)
-{
- if (nr < bplcon0_planes_limit) {
- uaecptr p = bplpt[nr] + bpl_off[nr];
- bplpt[nr] += 2 << fm;
- bplptx[nr] += 2 << fm;
- if (nr == 0)
- bpl1dat_written = 1;
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (0x110 + nr * 2, chipmem_agnus_wget (p), p, hpos, vpos, DMARECORD_BITPLANE);
-#endif
- switch (fm)
- {
- case 0:
- fetched[nr] = bplxdat[nr] = last_custom_value1 = chipmem_agnus_wget (p);
- break;
-#ifdef AGA
- case 1:
- fetched_aga0[nr] = chipmem_lget (p);
- last_custom_value1 = (uae_u16)fetched_aga0[nr];
- break;
- case 2:
- fetched_aga1[nr] = chipmem_lget (p);
- fetched_aga0[nr] = chipmem_lget (p + 4);
- last_custom_value1 = (uae_u16)fetched_aga0[nr];
- break;
-#endif
- }
- if (plf_state == plf_passed_stop2 && fetch_cycle >= (fetch_cycle & ~fetchunit_mask) + fetch_modulo_cycle) {
- int mod;
- if (fmode & 0x4000) {
- if (((diwstrt >> 8) ^ vpos) & 1)
- mod = bpl2mod;
- else
- mod = bpl1mod;
- } else if (nr & 1)
- mod = bpl2mod;
- else
- mod = bpl1mod;
- bplpt[nr] += mod;
- bplptx[nr] += mod;
- }
- } else {
- // use whatever left in BPLxDAT if no DMA
- // normally useless but "7-planes" feature won't work without this
- fetched[nr] = bplxdat[nr];
- }
-}
-
-STATIC_INLINE void toscr_3_ecs (int nbits)
-{
- int delay1 = toscr_delay1;
- int delay2 = toscr_delay2;
- int i;
- uae_u32 mask = 0xFFFF >> (16 - nbits);
-
- for (i = 0; i < toscr_nr_planes2; i += 2) {
- outword[i] <<= nbits;
- outword[i] |= (todisplay[i][0] >> (16 - nbits + delay1)) & mask;
- todisplay[i][0] <<= nbits;
- }
- for (i = 1; i < toscr_nr_planes2; i += 2) {
- outword[i] <<= nbits;
- outword[i] |= (todisplay[i][0] >> (16 - nbits + delay2)) & mask;
- todisplay[i][0] <<= nbits;
- }
-}
-
-STATIC_INLINE void shift32plus (uae_u32 *p, int n)
-{
- uae_u32 t = p[1];
- t <<= n;
- t |= p[0] >> (32 - n);
- p[1] = t;
-}
-
-#ifdef AGA
-STATIC_INLINE void aga_shift (uae_u32 *p, int n, int fm)
-{
- if (fm == 2) {
- shift32plus (p + 2, n);
- shift32plus (p + 1, n);
- }
- shift32plus (p + 0, n);
- p[0] <<= n;
-}
-
-STATIC_INLINE void toscr_3_aga (int nbits, int fm)
-{
- int delay1 = toscr_delay1;
- int delay2 = toscr_delay2;
- int i;
- uae_u32 mask = 0xFFFF >> (16 - nbits);
-
- {
- int offs = (16 << fm) - nbits + delay1;
- int off1 = offs >> 5;
- if (off1 == 3)
- off1 = 2;
- offs -= off1 * 32;
- for (i = 0; i < toscr_nr_planes2; i += 2) {
- uae_u32 t0 = todisplay[i][off1];
- uae_u32 t1 = todisplay[i][off1 + 1];
- uae_u64 t = (((uae_u64)t1) << 32) | t0;
- outword[i] <<= nbits;
- outword[i] |= (t >> offs) & mask;
- aga_shift (todisplay[i], nbits, fm);
- }
- }
- {
- int offs = (16 << fm) - nbits + delay2;
- int off1 = offs >> 5;
- if (off1 == 3)
- off1 = 2;
- offs -= off1 * 32;
- for (i = 1; i < toscr_nr_planes2; i += 2) {
- uae_u32 t0 = todisplay[i][off1];
- uae_u32 t1 = todisplay[i][off1 + 1];
- uae_u64 t = (((uae_u64)t1) << 32) | t0;
- outword[i] <<= nbits;
- outword[i] |= (t >> offs) & mask;
- aga_shift (todisplay[i], nbits, fm);
- }
- }
-}
-
-#endif
-
-static void toscr_2_0 (int nbits) { toscr_3_ecs (nbits); }
-#ifdef AGA
-static void toscr_2_1 (int nbits) { toscr_3_aga (nbits, 1); }
-static void toscr_2_2 (int nbits) { toscr_3_aga (nbits, 2); }
-#endif
-
-STATIC_INLINE void toscr_1 (int nbits, int fm)
-{
- switch (fm) {
- case 0:
- toscr_2_0 (nbits);
- break;
-#ifdef AGA
- case 1:
- toscr_2_1 (nbits);
- break;
- case 2:
- toscr_2_2 (nbits);
- break;
-#endif
- }
- out_nbits += nbits;
- if (out_nbits == 32) {
- int i;
- uae_u8 *dataptr = line_data[next_lineno] + out_offs * 4;
- for (i = 0; i < thisline_decision.nr_planes; i++) {
- uae_u32 *dataptr32 = (uae_u32 *)dataptr;
- if (*dataptr32 != outword[i]) {
- thisline_changed = 1;
- *dataptr32 = outword[i];
- }
- outword[i] = 0;
- dataptr += MAX_WORDS_PER_LINE * 2;
- }
- out_offs++;
- out_nbits = 0;
- }
-}
-
-static void toscr_fm0 (int);
-static void toscr_fm1 (int);
-static void toscr_fm2 (int);
-
-STATIC_INLINE void toscr (int nbits, int fm)
-{
- switch (fm) {
- case 0: toscr_fm0 (nbits); break;
-#ifdef AGA
- case 1: toscr_fm1 (nbits); break;
- case 2: toscr_fm2 (nbits); break;
-#endif
- }
-}
-
-STATIC_INLINE void toscr_0 (int nbits, int fm)
-{
- int t;
-
- if (nbits > 16) {
- toscr (16, fm);
- nbits -= 16;
- }
-
- t = 32 - out_nbits;
- if (t < nbits) {
- toscr_1 (t, fm);
- nbits -= t;
- }
- toscr_1 (nbits, fm);
-}
-
-static void toscr_fm0 (int nbits) { toscr_0 (nbits, 0); }
-static void toscr_fm1 (int nbits) { toscr_0 (nbits, 1); }
-static void toscr_fm2 (int nbits) { toscr_0 (nbits, 2); }
-
-static int flush_plane_data (int fm)
-{
- int i = 0;
-
- if (out_nbits <= 16) {
- i += 16;
- toscr_1 (16, fm);
- }
- if (out_nbits != 0) {
- i += 32 - out_nbits;
- toscr_1 (32 - out_nbits, fm);
- }
- i += 32;
-
- toscr_1 (16, fm);
- toscr_1 (16, fm);
-
- if (fm == 2) {
- /* flush AGA full 64-bit shift register */
- i += 32;
- toscr_1 (16, fm);
- toscr_1 (16, fm);
- }
-
- if (bpl1dat_early) {
- // clear possible crap in right border if
- // bpl1dat was written "out of sync"
- toscr_1 (16, fm);
- toscr_1 (16, fm);
- }
-
- return i >> (1 + toscr_res);
-}
-
-STATIC_INLINE void flush_display (int fm)
-{
- if (toscr_nbits > 0 && thisline_decision.plfleft != -1)
- toscr (toscr_nbits, fm);
- toscr_nbits = 0;
-}
-
-STATIC_INLINE void fetch_start (int hpos)
-{
- fetch_state = fetch_started;
-}
-
-
-/* Called when all planes have been fetched, i.e. when a new block
-of data is available to be displayed. The data in fetched[] is
-moved into todisplay[]. */
-STATIC_INLINE void beginning_of_plane_block (int hpos, int fm)
-{
- int i;
- int oleft = thisline_decision.plfleft;
- static uae_u16 bplcon1t, bplcon1t2;
-
- flush_display (fm);
-
- if (fm == 0)
- for (i = 0; i < MAX_PLANES; i++) {
- todisplay[i][0] |= fetched[i];
- }
-#ifdef AGA
- else
- for (i = 0; i < MAX_PLANES; i++) {
- if (fm == 2)
- todisplay[i][1] = fetched_aga1[i];
- todisplay[i][0] = fetched_aga0[i];
- }
-#endif
-
- update_denise (hpos);
- maybe_first_bpl1dat (hpos);
-
- bplcon1t2 = bplcon1t;
- bplcon1t = bplcon1;
- // writing to BPLCON1 1 cycle after BPL1DAT access will
- // not (except first BPL1DAT write) affect the display
- // until next display block
- if (bplcon1_hpos != hpos || oleft < 0)
- bplcon1t2 = bplcon1t;
- compute_toscr_delay (hpos, bplcon1t2);
-}
-
-#ifdef SPEEDUP
-
-/* The usual inlining tricks - don't touch unless you know what you are doing. */
-STATIC_INLINE void long_fetch_ecs (int plane, int nwords, int weird_number_of_bits, int dma)
-{
- uae_u16 *real_pt = (uae_u16 *)pfield_xlateptr (bplpt[plane] + bpl_off[plane], nwords * 2);
- int delay = (plane & 1) ? toscr_delay2 : toscr_delay1;
- int tmp_nbits = out_nbits;
- uae_u32 shiftbuffer = todisplay[plane][0];
- uae_u32 outval = outword[plane];
- uae_u32 fetchval = fetched[plane];
- uae_u32 *dataptr = (uae_u32 *)(line_data[next_lineno] + 2 * plane * MAX_WORDS_PER_LINE + 4 * out_offs);
-
- if (dma) {
- bplpt[plane] += nwords * 2;
- bplptx[plane] += nwords * 2;
- }
-
- if (real_pt == 0)
- /* @@@ Don't do this, fall back on chipmem_wget instead. */
- return;
-
- while (nwords > 0) {
- int bits_left = 32 - tmp_nbits;
- uae_u32 t;
-
- shiftbuffer |= fetchval;
-
- t = (shiftbuffer >> delay) & 0xFFFF;
-
- if (weird_number_of_bits && bits_left < 16) {
- outval <<= bits_left;
- outval |= t >> (16 - bits_left);
- thisline_changed |= *dataptr ^ outval;
- *dataptr++ = outval;
-
- outval = t;
- tmp_nbits = 16 - bits_left;
- shiftbuffer <<= 16;
- } else {
- outval = (outval << 16) | t;
- shiftbuffer <<= 16;
- tmp_nbits += 16;
- if (tmp_nbits == 32) {
- thisline_changed |= *dataptr ^ outval;
- *dataptr++ = outval;
- tmp_nbits = 0;
- }
- }
- nwords--;
- if (dma) {
- fetchval = do_get_mem_word (real_pt);
- real_pt++;
- }
- }
- fetched[plane] = fetchval;
- todisplay[plane][0] = shiftbuffer;
- outword[plane] = outval;
-}
-
-#ifdef AGA
-STATIC_INLINE void long_fetch_aga (int plane, int nwords, int weird_number_of_bits, int fm, int dma)
-{
- uae_u32 *real_pt = (uae_u32 *)pfield_xlateptr (bplpt[plane] + bpl_off[plane], nwords * 2);
- int delay = (plane & 1) ? toscr_delay2 : toscr_delay1;
- int tmp_nbits = out_nbits;
- uae_u32 *shiftbuffer = todisplay[plane];
- uae_u32 outval = outword[plane];
- uae_u32 fetchval0 = fetched_aga0[plane];
- uae_u32 fetchval1 = fetched_aga1[plane];
- uae_u32 *dataptr = (uae_u32 *)(line_data[next_lineno] + 2 * plane * MAX_WORDS_PER_LINE + 4 * out_offs);
- int offs = (16 << fm) - 16 + delay;
- int off1 = offs >> 5;
- if (off1 == 3)
- off1 = 2;
- offs -= off1 * 32;
-
- if (dma) {
- bplpt[plane] += nwords * 2;
- bplptx[plane] += nwords * 2;
- }
-
- if (real_pt == 0)
- /* @@@ Don't do this, fall back on chipmem_wget instead. */
- return;
-
- while (nwords > 0) {
- int i;
-
- shiftbuffer[0] = fetchval0;
- if (fm == 2)
- shiftbuffer[1] = fetchval1;
-
- for (i = 0; i < (1 << fm); i++) {
- int bits_left = 32 - tmp_nbits;
-
- uae_u32 t0 = shiftbuffer[off1];
- uae_u32 t1 = shiftbuffer[off1 + 1];
- uae_u64 t = (((uae_u64)t1) << 32) | t0;
-
- t0 = (uae_u32)((t >> offs) & 0xFFFF);
-
- if (weird_number_of_bits && bits_left < 16) {
- outval <<= bits_left;
- outval |= t0 >> (16 - bits_left);
-
- thisline_changed |= *dataptr ^ outval;
- *dataptr++ = outval;
-
- outval = t0;
- tmp_nbits = 16 - bits_left;
- aga_shift (shiftbuffer, 16, fm);
- } else {
- outval = (outval << 16) | t0;
- aga_shift (shiftbuffer, 16, fm);
- tmp_nbits += 16;
- if (tmp_nbits == 32) {
- thisline_changed |= *dataptr ^ outval;
- *dataptr++ = outval;
- tmp_nbits = 0;
- }
- }
- }
-
- nwords -= 1 << fm;
-
- if (dma) {
- if (fm == 1)
- fetchval0 = do_get_mem_long (real_pt);
- else {
- fetchval1 = do_get_mem_long (real_pt);
- fetchval0 = do_get_mem_long (real_pt + 1);
- }
- real_pt += fm;
- }
- }
- fetched_aga0[plane] = fetchval0;
- fetched_aga1[plane] = fetchval1;
- outword[plane] = outval;
-}
-#endif
-
-static void long_fetch_ecs_0 (int hpos, int nwords, int dma) { long_fetch_ecs (hpos, nwords, 0, dma); }
-static void long_fetch_ecs_1 (int hpos, int nwords, int dma) { long_fetch_ecs (hpos, nwords, 1, dma); }
-#ifdef AGA
-static void long_fetch_aga_1_0 (int hpos, int nwords, int dma) { long_fetch_aga (hpos, nwords, 0, 1, dma); }
-static void long_fetch_aga_1_1 (int hpos, int nwords, int dma) { long_fetch_aga (hpos, nwords, 1, 1, dma); }
-static void long_fetch_aga_2_0 (int hpos, int nwords, int dma) { long_fetch_aga (hpos, nwords, 0, 2, dma); }
-static void long_fetch_aga_2_1 (int hpos, int nwords, int dma) { long_fetch_aga (hpos, nwords, 1, 2, dma); }
-#endif
-
-static void do_long_fetch (int hpos, int nwords, int dma, int fm)
-{
- int i;
-
- flush_display (fm);
- switch (fm) {
- case 0:
- if (out_nbits & 15) {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_ecs_1 (i, nwords, dma);
- } else {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_ecs_0 (i, nwords, dma);
- }
- break;
-#ifdef AGA
- case 1:
- if (out_nbits & 15) {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_aga_1_1 (i, nwords, dma);
- } else {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_aga_1_0 (i, nwords, dma);
- }
- break;
- case 2:
- if (out_nbits & 15) {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_aga_2_1 (i, nwords, dma);
- } else {
- for (i = 0; i < toscr_nr_planes; i++)
- long_fetch_aga_2_0 (i, nwords, dma);
- }
- break;
-#endif
- }
-
- out_nbits += nwords * 16;
- out_offs += out_nbits >> 5;
- out_nbits &= 31;
-
- if (dma && toscr_nr_planes > 0)
- fetch_state = fetch_was_plane0;
-}
-
-#endif
-
-/* make sure fetch that goes beyond maxhpos is finished */
-static void finish_final_fetch (int pos, int fm)
-{
- if (thisline_decision.plfleft == -1)
- return;
- if (plf_state == plf_end)
- return;
- plf_state = plf_end;
- ddfstate = DIW_waiting_start;
- pos += flush_plane_data (fm);
- thisline_decision.plfright = pos;
- thisline_decision.plflinelen = out_offs;
- finish_playfield_line ();
-}
-
-STATIC_INLINE int one_fetch_cycle_0 (int pos, int ddfstop_to_test, int dma, int fm)
-{
- if (plf_state < plf_passed_stop && pos == ddfstop_to_test)
- plf_state = plf_passed_stop;
-
- if ((fetch_cycle & fetchunit_mask) == 0) {
- if (plf_state == plf_passed_stop2) {
- finish_final_fetch (pos, fm);
- return 1;
- }
- if (plf_state >= plf_passed_stop)
- plf_state++;
- }
-
- maybe_check (pos);
-
- if (dma) {
- /* fetchstart_mask can be larger than fm_maxplane if FMODE > 0. This means
- that the remaining cycles are idle; we'll fall through the whole switch
- without doing anything. */
- int cycle_start = fetch_cycle & fetchstart_mask;
- switch (fm_maxplane) {
- case 8:
- switch (cycle_start) {
- case 0: fetch (7, fm, pos); break;
- case 1: fetch (3, fm, pos); break;
- case 2: fetch (5, fm, pos); break;
- case 3: fetch (1, fm, pos); break;
- case 4: fetch (6, fm, pos); break;
- case 5: fetch (2, fm, pos); break;
- case 6: fetch (4, fm, pos); break;
- case 7: fetch (0, fm, pos); break;
- }
- break;
- case 4:
- switch (cycle_start) {
- case 0: fetch (3, fm, pos); break;
- case 1: fetch (1, fm, pos); break;
- case 2: fetch (2, fm, pos); break;
- case 3: fetch (0, fm, pos); break;
- }
- break;
- case 2:
- switch (cycle_start) {
- case 0: fetch (1, fm, pos); break;
- case 1: fetch (0, fm, pos); break;
- }
- break;
- }
- }
-
- if (bpl1dat_written) {
- // do this here because if program plays with BPLCON0 during scanline
- // it is possible that one DMA BPL1DAT write is completely missed
- // and we must not draw anything at all in next dma block if this happens
- // (Disposable Hero titlescreen)
- fetch_state = fetch_was_plane0;
- bpl1dat_written = 0;
- }
-
- fetch_cycle++;
- toscr_nbits += 2 << toscr_res;
-
- if (toscr_nbits > 16) {
- uae_abort (L"toscr_nbits > 16 (%d)", toscr_nbits);
- toscr_nbits = 0;
- }
- if (toscr_nbits == 16)
- flush_display (fm);
-
- return 0;
-}
-
-static int one_fetch_cycle_fm0 (int pos, int ddfstop_to_test, int dma) { return one_fetch_cycle_0 (pos, ddfstop_to_test, dma, 0); }
-static int one_fetch_cycle_fm1 (int pos, int ddfstop_to_test, int dma) { return one_fetch_cycle_0 (pos, ddfstop_to_test, dma, 1); }
-static int one_fetch_cycle_fm2 (int pos, int ddfstop_to_test, int dma) { return one_fetch_cycle_0 (pos, ddfstop_to_test, dma, 2); }
-
-STATIC_INLINE int one_fetch_cycle (int pos, int ddfstop_to_test, int dma, int fm)
-{
- switch (fm) {
- case 0: return one_fetch_cycle_fm0 (pos, ddfstop_to_test, dma);
-#ifdef AGA
- case 1: return one_fetch_cycle_fm1 (pos, ddfstop_to_test, dma);
- case 2: return one_fetch_cycle_fm2 (pos, ddfstop_to_test, dma);
-#endif
- default: uae_abort (L"fm corrupt"); return 0;
- }
-}
-
-STATIC_INLINE void update_fetch (int until, int fm)
-{
- int pos;
- int dma = dmaen (DMA_BITPLANE);
-
- int ddfstop_to_test;
-
- if (nodraw() || plf_state == plf_end)
- return;
-
- /* We need an explicit test against HARD_DDF_STOP here to guard against
- programs that move the DDFSTOP before our current position before we
- reach it. */
- ddfstop_to_test = HARD_DDF_STOP;
- if (ddfstop >= last_fetch_hpos && plfstop < ddfstop_to_test)
- ddfstop_to_test = plfstop;
-
- update_toscr_planes ();
-
- pos = last_fetch_hpos;
- cycle_diagram_shift = last_fetch_hpos - fetch_cycle;
-
- /* First, a loop that prepares us for the speedup code. We want to enter
- the SPEEDUP case with fetch_state == fetch_was_plane0, and then unroll
- whole blocks, so that we end on the same fetch_state again. */
- for (; ; pos++) {
- if (pos == until) {
- if (until >= maxhpos) {
- finish_final_fetch (pos, fm);
- return;
- }
- flush_display (fm);
- return;
- }
-
- if (fetch_state == fetch_was_plane0)
- break;
-
- fetch_start (pos);
- if (one_fetch_cycle (pos, ddfstop_to_test, dma, fm))
- return;
- }
-
-#ifdef SPEEDUP
- /* Unrolled version of the for loop below. */
- if (plf_state < plf_passed_stop && ddf_change != vpos && ddf_change + 1 != vpos
- && dma
- && (fetch_cycle & fetchstart_mask) == (fm_maxplane & fetchstart_mask)
- && !badmode && !debug_dma
-# if 0
- /* @@@ We handle this case, but the code would be simpler if we
- * disallowed it - it may even be possible to guarantee that
- * this condition never is false. Later. */
- && (out_nbits & 15) == 0
-# endif
- && toscr_nr_planes == thisline_decision.nr_planes)
- {
- int offs = (pos - fetch_cycle) & fetchunit_mask;
- int ddf2 = ((ddfstop_to_test - offs + fetchunit - 1) & ~fetchunit_mask) + offs;
- int ddf3 = ddf2 + fetchunit;
- int stop = until < ddf2 ? until : until < ddf3 ? ddf2 : ddf3;
- int count;
-
- count = stop - pos;
-
- if (count >= fetchstart) {
- count &= ~fetchstart_mask;
-
- if (thisline_decision.plfleft == -1) {
- compute_delay_offset ();
- compute_toscr_delay_1 (bplcon1);
- }
-
- do_long_fetch (pos, count >> (3 - toscr_res), dma, fm);
-
- /* This must come _after_ do_long_fetch so as not to confuse flush_display
- into thinking the first fetch has produced any output worth emitting to
- the screen. But the calculation of delay_offset must happen _before_. */
- maybe_first_bpl1dat (pos);
-
- if (pos <= ddfstop_to_test && pos + count > ddfstop_to_test)
- plf_state = plf_passed_stop;
- if (pos <= ddfstop_to_test && pos + count > ddf2)
- plf_state = plf_passed_stop2;
- if (pos <= ddf2 && pos + count >= ddf2 + fm_maxplane)
- add_modulos ();
- pos += count;
- fetch_cycle += count;
- }
- } else {
-#endif
-#ifdef SPEEDUP
- }
-#endif
- for (; pos < until; pos++) {
- if (fetch_state == fetch_was_plane0) {
- beginning_of_plane_block (pos, fm);
- estimate_last_fetch_cycle (pos);
- }
- fetch_start (pos);
-
- if (one_fetch_cycle (pos, ddfstop_to_test, dma, fm))
- return;
- }
- if (until >= maxhpos) {
- finish_final_fetch (pos, fm);
- return;
- }
- flush_display (fm);
-}
-
-static void update_fetch_0 (int hpos) { update_fetch (hpos, 0); }
-static void update_fetch_1 (int hpos) { update_fetch (hpos, 1); }
-static void update_fetch_2 (int hpos) { update_fetch (hpos, 2); }
-
-STATIC_INLINE void decide_fetch (int hpos)
-{
- if (hpos > last_fetch_hpos) {
- if (fetch_state != fetch_not_started) {
- switch (fetchmode) {
- case 0: update_fetch_0 (hpos); break;
-#ifdef AGA
- case 1: update_fetch_1 (hpos); break;
- case 2: update_fetch_2 (hpos); break;
-#endif
- default: uae_abort (L"fetchmode corrupt");
- }
- }
- maybe_check (hpos);
- last_fetch_hpos = hpos;
- }
-}
-
-static void start_bpl_dma (int hpos, int hstart)
-{
- if (first_bpl_vpos < 0)
- first_bpl_vpos = vpos;
-
- if (doflickerfix () && interlace_seen && !scandoubled_line) {
- int i;
- for (i = 0; i < 8; i++) {
- prevbpl[lof][vpos][i] = bplptx[i];
- if (!lof && (bplcon0 & 4))
- bplpt[i] = prevbpl[1 - lof][vpos][i];
- if (!(bplcon0 & 4) || interlace_seen < 0)
- prevbpl[1 - lof][vpos][i] = prevbpl[lof][vpos][i] = 0;
- }
- }
-
- fetch_start (hpos);
- fetch_cycle = 0;
- last_fetch_hpos = hstart;
- cycle_diagram_shift = last_fetch_hpos;
- out_nbits = 0;
- out_offs = 0;
- toscr_nbits = 0;
- thisline_decision.bplres = bplcon0_res;
-
- ddfstate = DIW_waiting_stop;
- compute_toscr_delay (last_fetch_hpos, bplcon1);
-
- /* If someone already wrote BPL1DAT, clear the area between that point and
- the real fetch start. */
- if (!nodraw ()) {
- if (thisline_decision.plfleft != -1) {
- out_nbits = (plfstrt - thisline_decision.plfleft) << (1 + toscr_res);
- out_offs = out_nbits >> 5;
- out_nbits &= 31;
- }
- update_toscr_planes ();
- }
-}
-
-/* this may turn on datafetch if program turns dma on during the ddf */
-static void maybe_start_bpl_dma (int hpos)
-{
- /* OCS: BPL DMA never restarts if DMA is turned on during DDF
- * ECS/AGA: BPL DMA restarts but only if DMA was turned off
- outside of DDF or during current line, otherwise display
- processing jumps immediately to "DDFSTOP passed"-condition */
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- return;
- if (fetch_state != fetch_not_started)
- return;
- if (diwstate != DIW_waiting_stop)
- return;
- if (hpos <= plfstrt)
- return;
- if (hpos > plfstop - fetchunit)
- return;
- if (ddfstate != DIW_waiting_start)
- plf_state = plf_passed_stop;
- start_bpl_dma (hpos, hpos);
-}
-
-/* This function is responsible for turning on datafetch if necessary. */
-STATIC_INLINE void decide_line (int hpos)
-{
- /* Take care of the vertical DIW. */
- if (vpos == plffirstline) {
- diwstate = DIW_waiting_stop;
- ddf_change = vpos;
- }
- if (vpos == plflastline) {
- diwstate = DIW_waiting_start;
- ddf_change = vpos;
- }
-
- if (hpos <= last_decide_line_hpos)
- return;
-
- if (fetch_state == fetch_not_started && diwstate == DIW_waiting_stop) {
- int ok = 0;
- if (last_decide_line_hpos < plfstrt_start && hpos >= plfstrt_start) {
- if (plf_state == plf_idle)
- plf_state = plf_start;
- }
- if (last_decide_line_hpos < plfstrt && hpos >= plfstrt) {
- if (plf_state == plf_start)
- plf_state = plf_active;
- if (plf_state == plf_active)
- ok = 1;
- /* hack warning.. Writing to DDFSTRT when DMA should start must be ignored
- * (correct fix would be emulate this delay for every custom register, but why bother..) */
- if (hpos - 2 == ddfstrt_old_hpos)
- ok = 0;
- }
- if (ok) {
- if (dmaen (DMA_BITPLANE)) {
- start_bpl_dma (hpos, plfstrt);
- estimate_last_fetch_cycle (plfstrt);
- }
- last_decide_line_hpos = hpos;
-#ifndef CUSTOM_SIMPLE
- do_sprites (plfstrt);
-#endif
- return;
- }
- }
-
-#ifndef CUSTOM_SIMPLE
- if (last_sprite_decide_line_hpos < SPR0_HPOS + 4 * MAX_SPRITES)
- do_sprites (hpos);
- last_sprite_decide_line_hpos = hpos;
-#endif
-
- last_decide_line_hpos = hpos;
-}
-
-/* Called when a color is about to be changed (write to a color register),
-* but the new color has not been entered into the table yet. */
-static void record_color_change (int hpos, int regno, unsigned long value)
-{
- if (regno < 0x1000 && nodraw ())
- return;
- /* Early positions don't appear on-screen. */
- if (vpos < minfirstline)
- return;
-
- decide_diw (hpos);
- decide_line (hpos);
-
- if (thisline_decision.ctable == -1)
- remember_ctable ();
-
-#ifdef OS_WITHOUT_MEMORY_MANAGEMENT
- if (next_color_change >= max_color_change) {
- ++delta_color_change;
- return;
- }
-#endif
- if (regno < 0x1000 && hpos < HBLANK_OFFSET && !(beamcon0 & 0x80) && prev_lineno >= 0) {
- struct draw_info *pdip = curr_drawinfo + prev_lineno;
- int idx = pdip->last_color_change;
- /* Move color changes in horizontal cycles 0 to HBLANK_OFFSET to end of previous line.
- * Cycles 0 to HBLANK_OFFSET are visible in right border on real Amigas. (because of late hsync)
- */
- pdip->last_color_change++;
- pdip->nr_color_changes++;
- curr_color_changes[idx].linepos = (hpos + maxhpos) * 2;
- curr_color_changes[idx].regno = regno;
- curr_color_changes[idx].value = value;
- curr_color_changes[idx + 1].regno = -1;
- }
- record_color_change2 (hpos, regno, value);
-}
-
-static void record_register_change (int hpos, int regno, unsigned long value)
-{
- if (regno == 0x100) { // BPLCON0
- if (value & 0x800)
- thisline_decision.ham_seen = 1;
- thisline_decision.ehb_seen = !! isehb (value, bplcon2);
- } else if (regno == 0x104) { // BPLCON2
- thisline_decision.ehb_seen = !! isehb (value, bplcon2);
- }
- record_color_change (hpos, regno + 0x1000, value);
-}
-
-typedef int sprbuf_res_t, cclockres_t, hwres_t, bplres_t;
-
-static int expand_sprres (uae_u16 con0, uae_u16 con3)
-{
- int res;
-
- switch ((con3 >> 6) & 3)
- {
- default:
- res = RES_LORES;
- break;
-#ifdef ECS_DENISE
- case 0: /* ECS defaults (LORES,HIRES=LORES sprite,SHRES=HIRES sprite) */
- if ((currprefs.chipset_mask & CSMASK_ECS_DENISE) && GET_RES_DENISE (con0) == RES_SUPERHIRES)
- res = RES_HIRES;
- else
- res = RES_LORES;
- break;
-#endif
-#ifdef AGA
- case 1:
- res = RES_LORES;
- break;
- case 2:
- res = RES_HIRES;
- break;
- case 3:
- res = RES_SUPERHIRES;
- break;
-#endif
- }
- return res;
-}
-
-/* handle very rarely needed playfield collision (CLXDAT bit 0) */
-static void do_playfield_collisions (void)
-{
- int bplres = bplcon0_res;
- hwres_t ddf_left = thisline_decision.plfleft * 2 << bplres;
- hwres_t hw_diwlast = coord_window_to_diw_x (thisline_decision.diwlastword);
- hwres_t hw_diwfirst = coord_window_to_diw_x (thisline_decision.diwfirstword);
- int i, collided, minpos, maxpos;
-#ifdef AGA
- int planes = (currprefs.chipset_mask & CSMASK_AGA) ? 8 : 6;
-#else
- int planes = 6;
-#endif
-
- if (clxcon_bpl_enable == 0) {
- clxdat |= 1;
- return;
- }
- if (clxdat & 1)
- return;
-
- collided = 0;
- minpos = thisline_decision.plfleft * 2;
- if (minpos < hw_diwfirst)
- minpos = hw_diwfirst;
- maxpos = thisline_decision.plfright * 2;
- if (maxpos > hw_diwlast)
- maxpos = hw_diwlast;
- for (i = minpos; i < maxpos && !collided; i+= 32) {
- int offs = ((i << bplres) - ddf_left) >> 3;
- int j;
- uae_u32 total = 0xffffffff;
- for (j = 0; j < planes; j++) {
- int ena = (clxcon_bpl_enable >> j) & 1;
- int match = (clxcon_bpl_match >> j) & 1;
- uae_u32 t = 0xffffffff;
- if (ena) {
- if (j < thisline_decision.nr_planes) {
- t = *(uae_u32 *)(line_data[next_lineno] + offs + 2 * j * MAX_WORDS_PER_LINE);
- t ^= (match & 1) - 1;
- } else {
- t = (match & 1) - 1;
- }
- }
- total &= t;
- }
- if (total) {
- collided = 1;
-#if 0
- {
- int k;
- for (k = 0; k < 1; k++) {
- uae_u32 *ldata = (uae_u32 *)(line_data[next_lineno] + offs + 2 * k * MAX_WORDS_PER_LINE);
- *ldata ^= 0x5555555555;
- }
- }
-#endif
-
- }
- }
- if (collided)
- clxdat |= 1;
-}
-
-/* Sprite-to-sprite collisions are taken care of in record_sprite. This one does
-playfield/sprite collisions. */
-static void do_sprite_collisions (void)
-{
- int nr_sprites = curr_drawinfo[next_lineno].nr_sprites;
- int first = curr_drawinfo[next_lineno].first_sprite_entry;
- int i;
- unsigned int collision_mask = clxmask[clxcon >> 12];
- int bplres = bplcon0_res;
- hwres_t ddf_left = thisline_decision.plfleft * 2 << bplres;
- hwres_t hw_diwlast = coord_window_to_diw_x (thisline_decision.diwlastword);
- hwres_t hw_diwfirst = coord_window_to_diw_x (thisline_decision.diwfirstword);
-
- if (clxcon_bpl_enable == 0) {
- clxdat |= 0x1FE;
- return;
- }
-
- for (i = 0; i < nr_sprites; i++) {
- struct sprite_entry *e = curr_sprite_entries + first + i;
- sprbuf_res_t j;
- sprbuf_res_t minpos = e->pos;
- sprbuf_res_t maxpos = e->max;
- hwres_t minp1 = minpos >> sprite_buffer_res;
- hwres_t maxp1 = maxpos >> sprite_buffer_res;
-
- if (maxp1 > hw_diwlast)
- maxpos = hw_diwlast << sprite_buffer_res;
- if (maxp1 > thisline_decision.plfright * 2)
- maxpos = thisline_decision.plfright * 2 << sprite_buffer_res;
- if (minp1 < hw_diwfirst)
- minpos = hw_diwfirst << sprite_buffer_res;
- if (minp1 < thisline_decision.plfleft * 2)
- minpos = thisline_decision.plfleft * 2 << sprite_buffer_res;
-
- for (j = minpos; j < maxpos; j++) {
- int sprpix = spixels[e->first_pixel + j - e->pos] & collision_mask;
- int k, offs, match = 1;
-
- if (sprpix == 0)
- continue;
-
- offs = ((j << bplres) >> sprite_buffer_res) - ddf_left;
- sprpix = sprite_ab_merge[sprpix & 255] | (sprite_ab_merge[sprpix >> 8] << 2);
- sprpix <<= 1;
-
- /* Loop over number of playfields. */
- for (k = 1; k >= 0; k--) {
- int l;
-#ifdef AGA
- int planes = (currprefs.chipset_mask & CSMASK_AGA) ? 8 : 6;
-#else
- int planes = 6;
-#endif
- if (bplcon0 & 0x400)
- match = 1;
- for (l = k; match && l < planes; l += 2) {
- int t = 0;
- if (l < thisline_decision.nr_planes) {
- uae_u32 *ldata = (uae_u32 *)(line_data[next_lineno] + 2 * l * MAX_WORDS_PER_LINE);
- uae_u32 word = ldata[offs >> 5];
- t = (word >> (31 - (offs & 31))) & 1;
-#if 0 /* debug: draw collision mask */
- if (1) {
- int m;
- for (m = 0; m < 5; m++) {
- ldata = (uae_u32 *)(line_data[next_lineno] + 2 * m * MAX_WORDS_PER_LINE);
- ldata[(offs >> 5) + 1] |= 15 << (31 - (offs & 31));
- }
- }
-#endif
- }
- if (clxcon_bpl_enable & (1 << l)) {
- if (t != ((clxcon_bpl_match >> l) & 1))
- match = 0;
- }
- }
- if (match) {
-#if 0 /* debug: mark lines where collisions are detected */
- if (0) {
- int l;
- for (l = 0; l < 5; l++) {
- uae_u32 *ldata = (uae_u32 *)(line_data[next_lineno] + 2 * l * MAX_WORDS_PER_LINE);
- ldata[(offs >> 5) + 1] |= 15 << (31 - (offs & 31));
- }
- }
-#endif
- clxdat |= sprpix << (k * 4);
- }
- }
- }
- }
-#if 0
- {
- static int olx;
- if (clxdat != olx)
- write_log (L"%d: %04X\n", vpos, clxdat);
- olx = clxdat;
- }
-#endif
-}
-
-STATIC_INLINE void record_sprite_1 (int sprxp, uae_u16 *buf, uae_u32 datab, int num, int dbl,
- unsigned int mask, int do_collisions, uae_u32 collision_mask)
-{
- int j = 0;
- while (datab) {
- unsigned int col = 0;
- unsigned coltmp = 0;
-
- if ((sprxp >= sprite_minx && sprxp < sprite_maxx) || (bplcon3 & 2))
- col = (datab & 3) << (2 * num);
-#if 0
- if (sprxp == sprite_minx || sprxp == sprite_maxx - 1)
- col ^= (rand () << 16) | rand ();
-#endif
- if ((j & mask) == 0) {
- unsigned int tmp = (*buf) | col;
- *buf++ = tmp;
- if (do_collisions)
- coltmp |= tmp;
- sprxp++;
- }
- if (dbl > 0) {
- unsigned int tmp = (*buf) | col;
- *buf++ = tmp;
- if (do_collisions)
- coltmp |= tmp;
- sprxp++;
- }
- if (dbl > 1) {
- unsigned int tmp;
- tmp = (*buf) | col;
- *buf++ = tmp;
- if (do_collisions)
- coltmp |= tmp;
- tmp = (*buf) | col;
- *buf++ = tmp;
- if (do_collisions)
- coltmp |= tmp;
- sprxp++;
- sprxp++;
- }
- j++;
- datab >>= 2;
- if (do_collisions) {
- coltmp &= collision_mask;
- if (coltmp) {
- unsigned int shrunk_tmp = sprite_ab_merge[coltmp & 255] | (sprite_ab_merge[coltmp >> 8] << 2);
- clxdat |= sprclx[shrunk_tmp];
- }
- }
- }
-}
-
-/* DATAB contains the sprite data; 16 pixels in two-bit packets. Bits 0/1
-determine the color of the leftmost pixel, bits 2/3 the color of the next
-etc.
-This function assumes that for all sprites in a given line, SPRXP either
-stays equal or increases between successive calls.
-
-The data is recorded either in lores pixels (if OCS/ECS), or in hires or
-superhires pixels (if AGA). */
-
-static void record_sprite (int line, int num, int sprxp, uae_u16 *data, uae_u16 *datb, unsigned int ctl)
-{
- struct sprite_entry *e = curr_sprite_entries + next_sprite_entry;
- int i;
- int word_offs;
- uae_u32 collision_mask;
- int width, dbl, half;
- unsigned int mask = 0;
- int attachment;
-
- half = 0;
- dbl = sprite_buffer_res - sprres;
- if (dbl < 0) {
- half = -dbl;
- dbl = 0;
- mask = 1 << half;
- }
- width = (sprite_width << sprite_buffer_res) >> sprres;
- attachment = sprctl[num | 1] & 0x80;
-
- /* Try to coalesce entries if they aren't too far apart */
- if (!next_sprite_forced && e[-1].max + sprite_width >= sprxp) {
- e--;
- } else {
- next_sprite_entry++;
- e->pos = sprxp;
- e->has_attached = 0;
- }
-
- if (sprxp < e->pos)
- uae_abort (L"sprxp < e->pos");
-
- e->max = sprxp + width;
- e[1].first_pixel = e->first_pixel + ((e->max - e->pos + 3) & ~3);
- next_sprite_forced = 0;
-
- collision_mask = clxmask[clxcon >> 12];
- word_offs = e->first_pixel + sprxp - e->pos;
-
- for (i = 0; i < sprite_width; i += 16) {
- unsigned int da = *data;
- unsigned int db = *datb;
- uae_u32 datab = ((sprtaba[da & 0xFF] << 16) | sprtaba[da >> 8]
- | (sprtabb[db & 0xFF] << 16) | sprtabb[db >> 8]);
- int off = (i << dbl) >> half;
- uae_u16 *buf = spixels + word_offs + off;
- if (currprefs.collision_level > 0 && collision_mask)
- record_sprite_1 (sprxp + off, buf, datab, num, dbl, mask, 1, collision_mask);
- else
- record_sprite_1 (sprxp + off, buf, datab, num, dbl, mask, 0, collision_mask);
- data++;
- datb++;
- }
-
- /* We have 8 bits per pixel in spixstate, two for every sprite pair. The
- low order bit records whether the attach bit was set for this pair. */
- if (attachment && !ecsshres ()) {
- uae_u32 state = 0x01010101 << (num & ~1);
- uae_u8 *stb1 = spixstate.bytes + word_offs;
- for (i = 0; i < width; i += 8) {
- stb1[0] |= state;
- stb1[1] |= state;
- stb1[2] |= state;
- stb1[3] |= state;
- stb1[4] |= state;
- stb1[5] |= state;
- stb1[6] |= state;
- stb1[7] |= state;
- stb1 += 8;
- }
- e->has_attached = 1;
- }
-}
-
-static void add_sprite (int *countp, int num, int sprxp, int posns[], int nrs[])
-{
- int count = *countp;
- int j, bestp;
-
- /* Sort the sprites in order of ascending X position before recording them. */
- for (bestp = 0; bestp < count; bestp++) {
- if (posns[bestp] > sprxp)
- break;
- if (posns[bestp] == sprxp && nrs[bestp] < num)
- break;
- }
- for (j = count; j > bestp; j--) {
- posns[j] = posns[j - 1];
- nrs[j] = nrs[j - 1];
- }
- posns[j] = sprxp;
- nrs[j] = num;
- count++;
- *countp = count;
-}
-
-static int tospritexdiw (int diw)
-{
- return coord_window_to_hw_x (diw - (DIW_DDF_OFFSET << lores_shift)) << sprite_buffer_res;
-}
-static int tospritexddf (int ddf)
-{
- return (ddf * 2) << sprite_buffer_res;
-}
-static int fromspritexdiw (int ddf)
-{
- return coord_hw_to_window_x (ddf >> sprite_buffer_res) + (DIW_DDF_OFFSET << lores_shift);
-}
-
-static void calcsprite (void)
-{
- sprite_maxx = 0x7fff;
- sprite_minx = 0;
- if (thisline_decision.diwlastword >= 0)
- sprite_maxx = tospritexdiw (thisline_decision.diwlastword);
- if (thisline_decision.diwfirstword >= 0)
- sprite_minx = tospritexdiw (thisline_decision.diwfirstword);
- if (thisline_decision.plfleft >= 0) {
- int min, max;
- min = tospritexddf (thisline_decision.plfleft);
- max = tospritexddf (thisline_decision.plfright);
- if (min > sprite_minx && min < max) /* min < max = full line ddf */
- sprite_minx = min;
- /* sprites are visible from first BPL0DAT write to end of line
- * (another undocumented feature)
- */
- }
-}
-
-static void decide_sprites (int hpos)
-{
- int nrs[MAX_SPRITES * 2], posns[MAX_SPRITES * 2];
- int count, i;
- /* apparantly writes to custom registers happen in the 3/4th of cycle
- * and sprite xpos comparator sees it immediately */
- int point = hpos * 2 - 3;
- int width = sprite_width;
- int sscanmask = 0x100 << sprite_buffer_res;
- int gotdata = 0;
-
- if (thisline_decision.plfleft == -1 && !(bplcon3 & 2))
- return;
-
- if (nodraw () || hpos < 0x14 || nr_armed == 0 || point == last_sprite_point)
- return;
-
- decide_diw (hpos);
- decide_line (hpos);
- calcsprite ();
-
- count = 0;
- for (i = 0; i < MAX_SPRITES; i++) {
- int sprxp = (fmode & 0x8000) ? (spr[i].xpos & ~sscanmask) : spr[i].xpos;
- int hw_xp = sprxp >> sprite_buffer_res;
-
- if (spr[i].xpos < 0)
- continue;
-
- if (!((debug_sprite_mask & magic_sprite_mask) & (1 << i)))
- continue;
-
- if (! spr[i].armed)
- continue;
-
- if (hw_xp > last_sprite_point && hw_xp <= point)
- add_sprite (&count, i, sprxp, posns, nrs);
-
- /* SSCAN2-bit is fun.. */
- if ((fmode & 0x8000) && !(sprxp & sscanmask)) {
- sprxp |= sscanmask;
- hw_xp = sprxp >> sprite_buffer_res;
- if (hw_xp > last_sprite_point && hw_xp <= point)
- add_sprite (&count, MAX_SPRITES + i, sprxp, posns, nrs);
- }
- }
-
- for (i = 0; i < count; i++) {
- int nr = nrs[i] & (MAX_SPRITES - 1);
- record_sprite (next_lineno, nr, posns[i], sprdata[nr], sprdatb[nr], sprctl[nr]);
- /* get left and right sprite edge if brdsprt enabled */
-#if AUTOSCALE_SPRITES
- if (dmaen (DMA_SPRITE) && (bplcon0 & 1) && (bplcon3 & 0x02) && !(bplcon3 & 0x20)) {
- int j, jj;
- for (j = 0, jj = 0; j < sprite_width; j+= 16, jj++) {
- int nx = fromspritexdiw (posns[i] + j);
- if (sprdata[nr][jj] || sprdatb[nr][jj]) {
- if (diwfirstword_total > nx && nx >= (48 << currprefs.gfx_resolution))
- diwfirstword_total = nx;
- if (diwlastword_total < nx + 16 && nx <= (448 << currprefs.gfx_resolution))
- diwlastword_total = nx + 16;
- }
- }
- gotdata = 1;
- }
-#endif
- }
- last_sprite_point = point;
-
-#if AUTOSCALE_SPRITES
- /* get upper and lower sprite position if brdsprt enabled */
- if (gotdata) {
- if (vpos < first_planes_vpos)
- first_planes_vpos = vpos;
- if (vpos < plffirstline_total)
- plffirstline_total = vpos;
- if (vpos > last_planes_vpos)
- last_planes_vpos = vpos;
- if (vpos > plflastline_total)
- plflastline_total = vpos;
- }
-#endif
-}
-
-STATIC_INLINE int sprites_differ (struct draw_info *dip, struct draw_info *dip_old)
-{
- struct sprite_entry *this_first = curr_sprite_entries + dip->first_sprite_entry;
- struct sprite_entry *this_last = curr_sprite_entries + dip->last_sprite_entry;
- struct sprite_entry *prev_first = prev_sprite_entries + dip_old->first_sprite_entry;
- int npixels;
- int i;
-
- if (dip->nr_sprites != dip_old->nr_sprites)
- return 1;
-
- if (dip->nr_sprites == 0)
- return 0;
-
- for (i = 0; i < dip->nr_sprites; i++)
- if (this_first[i].pos != prev_first[i].pos
- || this_first[i].max != prev_first[i].max
- || this_first[i].has_attached != prev_first[i].has_attached)
- return 1;
-
- npixels = this_last->first_pixel + (this_last->max - this_last->pos) - this_first->first_pixel;
- if (memcmp (spixels + this_first->first_pixel, spixels + prev_first->first_pixel,
- npixels * sizeof (uae_u16)) != 0)
- return 1;
- if (memcmp (spixstate.bytes + this_first->first_pixel, spixstate.bytes + prev_first->first_pixel, npixels) != 0)
- return 1;
- return 0;
-}
-
-STATIC_INLINE int color_changes_differ (struct draw_info *dip, struct draw_info *dip_old)
-{
- if (dip->nr_color_changes != dip_old->nr_color_changes)
- return 1;
-
- if (dip->nr_color_changes == 0)
- return 0;
- if (memcmp (curr_color_changes + dip->first_color_change,
- prev_color_changes + dip_old->first_color_change,
- dip->nr_color_changes * sizeof *curr_color_changes) != 0)
- return 1;
- return 0;
-}
-
-/* End of a horizontal scan line. Finish off all decisions that were not
-* made yet. */
-static void finish_decisions (void)
-{
- struct draw_info *dip;
- struct draw_info *dip_old;
- struct decision *dp;
- int changed;
- int hpos = maxhpos;
-
- if (nodraw ())
- return;
-
- decide_diw (hpos);
- decide_line (hpos);
- decide_fetch (hpos);
-
- if (thisline_decision.plfleft != -1 && thisline_decision.plflinelen == -1) {
- if (fetch_state != fetch_not_started) {
- write_log (L"fetch_state=%d plfleft=%d,len=%d,vpos=%d,hpos=%d\n",
- fetch_state, thisline_decision.plfleft, thisline_decision.plflinelen,
- vpos, hpos);
- uae_abort (L"fetch_state != fetch_not_started");
- }
- thisline_decision.plfright = thisline_decision.plfleft;
- thisline_decision.plflinelen = 0;
- thisline_decision.bplres = RES_LORES;
- }
-
- /* Large DIWSTOP values can cause the stop position never to be
- * reached, so the state machine always stays in the same state and
- * there's a more-or-less full-screen DIW. */
- if (hdiwstate == DIW_waiting_stop || thisline_decision.diwlastword > max_diwlastword)
- thisline_decision.diwlastword = max_diwlastword;
-
- if (thisline_decision.diwfirstword != line_decisions[next_lineno].diwfirstword)
- MARK_LINE_CHANGED;
- if (thisline_decision.diwlastword != line_decisions[next_lineno].diwlastword)
- MARK_LINE_CHANGED;
-
- dip = curr_drawinfo + next_lineno;
- dip_old = prev_drawinfo + next_lineno;
- dp = line_decisions + next_lineno;
- changed = thisline_changed;
- if (thisline_decision.plfleft != -1 && thisline_decision.nr_planes > 0)
- record_diw_line (thisline_decision.plfleft, diwfirstword, diwlastword);
-
- decide_sprites (hpos + 1);
-
- dip->last_sprite_entry = next_sprite_entry;
- dip->last_color_change = next_color_change;
-
- if (thisline_decision.ctable == -1) {
- if (thisline_decision.plfleft == -1)
- remember_ctable_for_border ();
- else
- remember_ctable ();
- }
-
- dip->nr_color_changes = next_color_change - dip->first_color_change;
- dip->nr_sprites = next_sprite_entry - dip->first_sprite_entry;
-
- if (thisline_decision.plfleft != line_decisions[next_lineno].plfleft)
- changed = 1;
- if (! changed && color_changes_differ (dip, dip_old))
- changed = 1;
- if (!changed && thisline_decision.plfleft != -1 && sprites_differ (dip, dip_old))
- changed = 1;
-
- if (changed) {
- thisline_changed = 1;
- *dp = thisline_decision;
- } else
- /* The only one that may differ: */
- dp->ctable = thisline_decision.ctable;
-
- /* leave free space for possible extra color changes at the end of line */
- next_color_change += (HBLANK_OFFSET + 1) / 2;
-}
-
-/* Set the state of all decisions to "undecided" for a new scanline. */
-static void reset_decisions (void)
-{
- if (nodraw ())
- return;
-
- toscr_nr_planes = toscr_nr_planes2 = 0;
- thisline_decision.bplres = bplcon0_res;
- thisline_decision.nr_planes = 0;
- bpl1dat_written = 0;
- bpl1dat_early = 0;
-
- plfleft_real = -1;
- thisline_decision.plfleft = -1;
- thisline_decision.plflinelen = -1;
- thisline_decision.ham_seen = !! (bplcon0 & 0x800);
- thisline_decision.ehb_seen = !! isehb (bplcon0, bplcon2);
- thisline_decision.ham_at_start = !! (bplcon0 & 0x800);
-
- /* decided_res shouldn't be touched before it's initialized by decide_line(). */
- thisline_decision.diwfirstword = -1;
- thisline_decision.diwlastword = -1;
- if (hdiwstate == DIW_waiting_stop) {
- thisline_decision.diwfirstword = 0;
- if (thisline_decision.diwfirstword != line_decisions[next_lineno].diwfirstword)
- MARK_LINE_CHANGED;
- }
- thisline_decision.ctable = -1;
-
- thisline_changed = 0;
- curr_drawinfo[next_lineno].first_color_change = next_color_change;
- curr_drawinfo[next_lineno].first_sprite_entry = next_sprite_entry;
- next_sprite_forced = 1;
-
- last_sprite_point = 0;
- fetch_state = fetch_not_started;
- bplcon1_hpos = -1;
- if (bpldmasetuphpos >= 0) {
- // this can happen in "too fast" modes
- BPLCON0_Denise (0, bplcon0);
- setup_fmodes (0);
- }
- bpldmasetuphpos = -1;
- bpldmasetupphase = 0;
- ddfstrt_old_hpos = -1;
-
- if (plf_state > plf_active)
- plf_state = plf_idle;
- if (plf_state == plf_active && !(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- plf_state = plf_idle;
-
- memset (todisplay, 0, sizeof todisplay);
- memset (fetched, 0, sizeof fetched);
-#ifdef AGA
- if (currprefs.chipset_mask & CSMASK_AGA) {
- memset (fetched_aga0, 0, sizeof fetched_aga0);
- memset (fetched_aga1, 0, sizeof fetched_aga1);
- }
-#endif
- memset (outword, 0, sizeof outword);
-
- last_decide_line_hpos = -1;
- last_sprite_decide_line_hpos = -1;
- last_diw_pix_hpos = -1;
- last_ddf_pix_hpos = -1;
- last_sprite_hpos = -1;
- last_fetch_hpos = -1;
-
- /* These are for comparison. */
- thisline_decision.bplcon0 = bplcon0;
- thisline_decision.bplcon2 = bplcon2;
-#ifdef ECS_DENISE
- thisline_decision.bplcon3 = bplcon3;
-#endif
-#ifdef AGA
- thisline_decision.bplcon4 = bplcon4;
-#endif
-}
-
-static int islinetoggle (void)
-{
- int linetoggle = 0;
- if (!(beamcon0 & 0x0800) && !(beamcon0 & 0x0020) && (currprefs.chipset_mask & CSMASK_ECS_AGNUS)) {
- linetoggle = 1; // NTSC and !LOLDIS -> LOL toggles every line
- } else if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS) && currprefs.ntscmode) {
- linetoggle = 1; // hardwired NTSC Agnus
- }
- return linetoggle;
-}
-
-static int isvsync (void)
-{
- if (!currprefs.gfx_afullscreen || picasso_on || !currprefs.gfx_avsync)
- return 0;
- return currprefs.gfx_avsync;
-}
-
-int vsynctime_orig;
-
-void compute_vsynctime (void)
-{
- fake_vblank_hz = 0;
- if (currprefs.chipset_refreshrate) {
- vblank_hz = currprefs.chipset_refreshrate;
- if (isvsync ()) {
- vblank_skip = 1;
- if (!fake_vblank_hz && getvsyncrate (vblank_hz) != vblank_hz) {
- vblank_hz = getvsyncrate (vblank_hz);
- vblank_skip = -1;
- }
- }
- }
- if (!fake_vblank_hz)
- fake_vblank_hz = vblank_hz;
- if (currprefs.turbo_emulation)
- vsynctime = vsynctime_orig = 1;
- else
- vsynctime = vsynctime_orig = syncbase / fake_vblank_hz;
- if (!picasso_on) {
-#ifdef OPENGL
- OGL_refresh ();
-#endif
-#ifdef D3D
- D3D_refresh ();
-#endif
- }
- if (currprefs.produce_sound > 1)
- update_sound (fake_vblank_hz, (bplcon0 & 4) ? -1 : lof, islinetoggle ());
-}
-
-
-static void dumpsync (void)
-{
- static int cnt = 100;
- if (cnt < 0)
- return;
- cnt--;
- write_log (L"BEAMCON0=%04X VTOTAL=%04X HTOTAL=%04X\n", new_beamcon0, vtotal, htotal);
- write_log (L"HSSTOP=%04X HBSTRT=%04X HBSTOP=%04X\n", hsstop, hbstrt, hbstop);
- write_log (L"VSSTOP=%04X VBSTRT=%04X VBSTOP=%04X\n", vsstop, vbstrt, vbstop);
- write_log (L"HSSTRT=%04X VSSTRT=%04X HCENTER=%04X\n", hsstrt, vsstrt, hcenter);
-}
-
-/* set PAL/NTSC or custom timing variables */
-void init_hz (void)
-{
- int isntsc;
- int odbl = doublescan, omaxvpos = maxvpos;
- int hzc = 0;
-
- if (vsync_switchmode (-1, 0) > 0)
- currprefs.gfx_avsync = changed_prefs.gfx_avsync = vsync_switchmode (-1, 0);
-
- if (!isvsync () && ((currprefs.chipset_refreshrate == 50 && !currprefs.ntscmode) ||
- (currprefs.chipset_refreshrate == 60 && currprefs.ntscmode))) {
- currprefs.chipset_refreshrate = changed_prefs.chipset_refreshrate = 0;
- }
-
- doublescan = 0;
- if ((beamcon0 & 0xA0) != (new_beamcon0 & 0xA0))
- hzc = 1;
- if (beamcon0 != new_beamcon0) {
- hack_vpos = 0;
- write_log (L"BEAMCON0 %04x -> %04x\n", beamcon0, new_beamcon0);
- }
- if (beamcon0 & 0x80)
- hack_vpos = -1;
- beamcon0 = new_beamcon0;
- isntsc = (beamcon0 & 0x20) ? 0 : 1;
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- isntsc = currprefs.ntscmode ? 1 : 0;
- if (hack_vpos > 0) {
- if (maxvpos == hack_vpos) {
- hack_vpos = -1;
- return;
- }
- maxvpos = hack_vpos;
- vblank_hz = 15600 / hack_vpos;
- hack_vpos = -1;
- } else if (hack_vpos < 0) {
- hack_vpos = 0;
- }
- if (hack_vpos == 0) {
- if (!isntsc) {
- maxvpos = MAXVPOS_PAL;
- maxhpos = MAXHPOS_PAL;
- minfirstline = VBLANK_ENDLINE_PAL;
- vblank_hz = VBLANK_HZ_PAL;
- sprite_vblank_endline = VBLANK_SPRITE_PAL;
- } else {
- maxvpos = MAXVPOS_NTSC;
- maxhpos = MAXHPOS_NTSC;
- minfirstline = VBLANK_ENDLINE_NTSC;
- vblank_hz = VBLANK_HZ_NTSC;
- sprite_vblank_endline = VBLANK_SPRITE_NTSC;
- }
- maxvpos_max = maxvpos;
- }
- if (beamcon0 & 0x80) {
- if (vtotal >= MAXVPOS)
- vtotal = MAXVPOS - 1;
- maxvpos = vtotal + 1;
- if (htotal >= MAXHPOS)
- htotal = MAXHPOS - 1;
- maxhpos = htotal + 1;
- vblank_hz = 227 * 312 * 50 / (maxvpos * maxhpos);
- minfirstline = vsstop;
- if (minfirstline < 2)
- minfirstline = 2;
- if (minfirstline >= maxvpos)
- minfirstline = maxvpos - 1;
- sprite_vblank_endline = minfirstline - 2;
- maxvpos_max = maxvpos;
- doublescan = htotal <= 164 ? 1 : 0;
- dumpsync ();
- hzc = 1;
- }
- if (currprefs.gfx_scandoubler && doublescan == 0)
- doublescan = -1;
- if (doublescan != odbl || maxvpos != omaxvpos)
- hzc = 1;
- /* limit to sane values */
- if (vblank_hz < 10)
- vblank_hz = 10;
- if (vblank_hz > 300)
- vblank_hz = 300;
- maxhpos_short = maxhpos;
- eventtab[ev_hsync].oldcycles = get_cycles ();
- eventtab[ev_hsync].evtime = get_cycles() + HSYNCTIME;
- events_schedule ();
- if (hzc) {
- interlace_seen = (bplcon0 & 4) ? 1 : 0;
- reset_drawing ();
- }
- if ((vblank_hz == 50 || vblank_hz == 60) && isvsync () == 2) {
- if (getvsyncrate (currprefs.gfx_refreshrate) != vblank_hz)
- vsync_switchmode (vblank_hz, currprefs.gfx_refreshrate);
- }
- if (isvsync ()) {
- changed_prefs.chipset_refreshrate = currprefs.chipset_refreshrate = abs (currprefs.gfx_refreshrate);
- }
-
- compute_vsynctime ();
-#ifdef OPENGL
- OGL_refresh ();
-#endif
-#ifdef PICASSO96
- init_hz_p96 ();
-#endif
- inputdevice_tablet_strobe ();
- write_log (L"%s mode%s%s V=%dHz H=%dHz (%dx%d)\n",
- isntsc ? L"NTSC" : L"PAL",
- (bplcon0 & 4) ? L" interlaced" : L"",
- doublescan > 0 ? L" dblscan" : L"",
- vblank_hz, vblank_hz * maxvpos,
- maxhpos, maxvpos);
-
-}
-
-static void calcdiw (void)
-{
- int hstrt = diwstrt & 0xFF;
- int hstop = diwstop & 0xFF;
- int vstrt = diwstrt >> 8;
- int vstop = diwstop >> 8;
-
- if (diwhigh_written) {
- hstrt |= ((diwhigh >> 5) & 1) << 8;
- hstop |= ((diwhigh >> 13) & 1) << 8;
- vstrt |= (diwhigh & 7) << 8;
- vstop |= ((diwhigh >> 8) & 7) << 8;
- } else {
- hstop += 0x100;
- if ((vstop & 0x80) == 0)
- vstop |= 0x100;
- }
-
- diwfirstword = coord_diw_to_window_x (hstrt);
- diwlastword = coord_diw_to_window_x (hstop);
- if (diwfirstword >= diwlastword) {
- diwfirstword = 0;
- diwlastword = max_diwlastword;
- }
- if (diwfirstword < 0)
- diwfirstword = 0;
-
- plffirstline = vstrt;
- plflastline = vstop;
-
- plfstrt = ddfstrt;
- plfstop = ddfstop;
- /* probably not the correct place.. should use plf_state instead */
- if (currprefs.chipset_mask & CSMASK_ECS_AGNUS) {
- /* ECS/AGA and ddfstop > maxhpos == always-on display */
- if (plfstop > maxhpos)
- plfstrt = 0;
- if (plfstrt < HARD_DDF_START)
- plfstrt = HARD_DDF_START;
- plfstrt_start = plfstrt - 4;
- } else {
- /* OCS and ddfstrt >= ddfstop == ddfstop = max */
- if (plfstrt >= plfstop && plfstrt >= HARD_DDF_START)
- plfstop = 0xff;
- plfstrt_start = HARD_DDF_START - 2;
- }
- diw_change = 2;
-}
-
-/* display mode changed (lores, doubling etc..), recalculate everything */
-void init_custom (void)
-{
- update_mirrors();
- create_cycle_diagram_table ();
- reset_drawing ();
- init_hz ();
- calcdiw ();
-}
-
-static int timehack_alive = 0;
-
-static uae_u32 REGPARAM2 timehack_helper (TrapContext *context)
-{
-#ifdef HAVE_GETTIMEOFDAY
- struct timeval tv;
- if (m68k_dreg (regs, 0) == 0)
- return timehack_alive;
-
- timehack_alive = 10;
-
- gettimeofday (&tv, NULL);
- put_long (m68k_areg (regs, 0), tv.tv_sec - (((365 * 8 + 2) * 24) * 60 * 60));
- put_long (m68k_areg (regs, 0) + 4, tv.tv_usec);
- return 0;
-#else
- return 2;
-#endif
-}
-
-/*
-* register functions
-*/
-STATIC_INLINE uae_u16 DENISEID (void)
-{
- if (currprefs.cs_deniserev >= 0)
- return currprefs.cs_deniserev;
-#ifdef AGA
- if (currprefs.chipset_mask & CSMASK_AGA)
- return 0xF8;
-#endif
- if (currprefs.chipset_mask & CSMASK_ECS_DENISE)
- return 0xFC;
- return 0xffff;
-}
-STATIC_INLINE uae_u16 DMACONR (int hpos)
-{
- decide_line (hpos);
- decide_fetch (hpos);
- decide_blitter (hpos);
- dmacon &= ~(0x4000 | 0x2000);
- dmacon |= (blit_interrupt || (!blit_interrupt && currprefs.cs_agnusbltbusybug && !blt_info.got_cycle) ? 0 : 0x4000)
- | (blt_info.blitzero ? 0x2000 : 0);
- return dmacon;
-}
-STATIC_INLINE uae_u16 INTENAR (void)
-{
- return intena;
-}
-uae_u16 INTREQR (void)
-{
- return intreqr;
-}
-STATIC_INLINE uae_u16 ADKCONR (void)
-{
- return adkcon;
-}
-
-STATIC_INLINE int islightpentriggered (void)
-{
- if (beamcon0 & 0x2000) // LPENDIS
- return 0;
- return lightpen_triggered > 0;
-}
-STATIC_INLINE int issyncstopped (void)
-{
- return (bplcon0 & 2) && !currprefs.genlock;
-}
-
-STATIC_INLINE int GETVPOS (void)
-{
- return islightpentriggered () ? vpos_lpen : (issyncstopped () ? vpos_previous : vpos);
-}
-STATIC_INLINE int GETHPOS (void)
-{
- return islightpentriggered () ? hpos_lpen : (issyncstopped () ? hpos_previous : current_hpos ());
-}
-
-#define HPOS_OFFSET 3
-
-STATIC_INLINE uae_u16 VPOSR (void)
-{
- unsigned int csbit = 0;
- uae_u16 vp = GETVPOS ();
- uae_u16 hp = GETHPOS ();
-
- if (hp + HPOS_OFFSET >= maxhpos) {
- vp++;
- if (vp >= maxvpos + lof)
- vp = 0;
- }
- vp = (vp >> 8) & 7;
-
- if (currprefs.cs_agnusrev >= 0) {
- csbit |= currprefs.cs_agnusrev << 8;
- } else {
-#ifdef AGA
- csbit |= (currprefs.chipset_mask & CSMASK_AGA) ? 0x2300 : 0;
-#endif
- csbit |= (currprefs.chipset_mask & CSMASK_ECS_AGNUS) ? 0x2000 : 0;
- if (currprefs.chipmem_size > 1024 * 1024 && (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- csbit |= 0x2100;
- if (currprefs.ntscmode)
- csbit |= 0x1000;
- }
-
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- vp &= 1;
- vp = vp | (lof ? 0x8000 : 0) | csbit;
- if (currprefs.chipset_mask & CSMASK_ECS_AGNUS)
- vp |= lol ? 0x80 : 0;
-#if 0
- if (M68K_GETPC < 0xf00000)
- write_log (L"VPOSR %04x at %08x\n", vp, M68K_GETPC);
-#endif
- if (currprefs.cpu_model >= 68020)
- hsyncdelay ();
- return vp;
-}
-
-static void VPOSW (uae_u16 v)
-{
-#if 0
- if (M68K_GETPC < 0xf00000)
- write_log (L"VPOSW %04X PC=%08x\n", v, M68K_GETPC);
-#endif
- if (lof != ((v & 0x8000) ? 1 : 0))
- lof_changed = 1;
- lof = (v & 0x8000) ? 1 : 0;
- if (currprefs.chipset_mask & CSMASK_ECS_AGNUS)
- lol = (v & 0x0080) ? 1 : 0;
- hack_vpos2 = (vpos & 0xff);
- if (v & 1)
- hack_vpos2 |= 0x100;
- hack_vpos2vpos = vpos;
- if (hack_vpos2 > maxvpos)
- hack_vpos2 = maxvpos;
- // do not allow changing vpos backwards or vsync may never happen..
- if (vpos < hack_vpos2)
- vpos = hack_vpos2;
-}
-
-static void VHPOSW (uae_u16 v)
-{
-#if 0
- if (M68K_GETPC < 0xf00000)
- write_log (L"VHPOSW %04X PC=%08x\n", v, M68K_GETPC);
-#endif
- v >>= 8;
- if (hack_vpos2 & 0x100)
- v |= 0x100;
- else if (vpos & 0x100)
- v |= 0x100;
- hack_vpos2 = v;
- hack_vpos2vpos = vpos;
- if (hack_vpos2 > maxvpos)
- hack_vpos2 = maxvpos;
- if (vpos < hack_vpos2)
- vpos = hack_vpos2;
-}
-
-STATIC_INLINE uae_u16 VHPOSR (void)
-{
- uae_u16 vp = GETVPOS ();
- uae_u16 hp = GETHPOS ();
-
- hp += HPOS_OFFSET;
- if (hp >= maxhpos) {
- hp -= maxhpos;
- vp++;
- if (vp >= maxvpos + lof)
- vp = 0;
- }
- hp += 1;
- if (hp >= maxhpos)
- hp -= maxhpos;
-
- vp <<= 8;
- vp |= hp;
- if (currprefs.cpu_model >= 68020)
- hsyncdelay ();
-#if 0
- if (M68K_GETPC < 0xf00000 && (vpos >= maxhpos || vpos <= 1))
- write_log (L"VPOS %04x %04x at %08x\n", VPOSR (), vp, M68K_GETPC);
-#endif
- return vp;
-}
-
-static int test_copper_dangerous (unsigned int address)
-{
- if ((address & 0x1fe) < ((copcon & 2) ? ((currprefs.chipset_mask & CSMASK_ECS_AGNUS) ? 0 : 0x40) : 0x80)) {
- cop_state.state = COP_stop;
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- return 1;
- }
- return 0;
-}
-
-static void immediate_copper (int num)
-{
- int pos = 0;
- int oldpos = 0;
-
- cop_state.state = COP_stop;
- cop_state.vpos = vpos;
- cop_state.hpos = current_hpos () & ~1;
- cop_state.ip = num == 1 ? cop1lc : cop2lc;
-
- while (pos < (maxvpos << 5)) {
- if (oldpos > pos)
- pos = oldpos;
- if (!dmaen(DMA_COPPER))
- break;
- if (cop_state.ip >= currprefs.chipmem_size)
- break;
- pos++;
- oldpos = pos;
- cop_state.i1 = chipmem_agnus_wget (cop_state.ip);
- cop_state.i2 = chipmem_agnus_wget (cop_state.ip + 2);
- cop_state.ip += 4;
- if (!(cop_state.i1 & 1)) { // move
- cop_state.i1 &= 0x1fe;
- if (cop_state.i1 == 0x88) {
- cop_state.ip = cop1lc;
- continue;
- }
- if (cop_state.i1 == 0x8a) {
- cop_state.ip = cop2lc;
- continue;
- }
- if (test_copper_dangerous (cop_state.i1))
- break;
- custom_wput_1 (0, cop_state.i1, cop_state.i2, 0);
- } else { // wait or skip
- if ((cop_state.i1 >> 8) > ((pos >> 5) & 0xff))
- pos = (((pos >> 5) & 0x100) | ((cop_state.i1 >> 8)) << 5) | ((cop_state.i1 & 0xff) >> 3);
- if (cop_state.i1 >= 0xffdf && cop_state.i2 == 0xfffe)
- break;
- }
- }
- cop_state.state = COP_stop;
- unset_special (SPCFLAG_COPPER);
-}
-
-STATIC_INLINE void COP1LCH (uae_u16 v)
-{
- cop1lc = (cop1lc & 0xffff) | ((uae_u32)v << 16);
-}
-STATIC_INLINE void COP1LCL (uae_u16 v)
-{
- cop1lc = (cop1lc & ~0xffff) | (v & 0xfffe);
-}
-STATIC_INLINE void COP2LCH (uae_u16 v)
-{
- cop2lc = (cop2lc & 0xffff) | ((uae_u32)v << 16);
-}
-STATIC_INLINE void COP2LCL (uae_u16 v)
-{
- cop2lc = (cop2lc & ~0xffff) | (v & 0xfffe);
-}
-
-static void compute_spcflag_copper (int hpos);
-
-// vblank = copper starts at hpos=2
-// normal COPJMP write: takes 2 more cycles
-static void COPJMP (int num, int vblank)
-{
- int oldstrobe = cop_state.strobe;
-
-#if CUSTOM_DEBUG > 0
- if (dmaen (DMA_COPPER) && (cop_state.saved_i1 != 0xffff || cop_state.saved_i2 != 0xfffe))
- write_log (L"vblank without copper ending %08x (%08x %08x)\n", cop_state.ip, cop1lc, cop2lc);
-#endif
-
- unset_special (SPCFLAG_COPPER);
- cop_state.ignore_next = 0;
- if (!oldstrobe)
- cop_state.state_prev = cop_state.state;
- cop_state.state = vblank ? COP_start_delay : (copper_access ? COP_strobe_delay1 : COP_strobe_extra);
- cop_state.vpos = vpos;
- cop_state.hpos = current_hpos () & ~1;
- copper_enabled_thisline = 0;
- cop_state.strobe = num;
-
- if (nocustom ()) {
- immediate_copper (num);
- return;
- }
-
- if (dmaen (DMA_COPPER)) {
- compute_spcflag_copper (current_hpos ());
- } else if (oldstrobe > 0 && oldstrobe != num && cop_state.state_prev == COP_wait) {
- /* dma disabled, copper idle and accessed both COPxJMPs -> copper stops! */
- cop_state.state = COP_stop;
- }
-}
-
-STATIC_INLINE void COPCON (uae_u16 a)
-{
- copcon = a;
-}
-
-static void DMACON (int hpos, uae_u16 v)
-{
- int oldcop, newcop;
- uae_u16 changed;
-
- uae_u16 oldcon = dmacon;
-
- decide_line (hpos);
- decide_fetch (hpos);
- decide_blitter (hpos);
-
- setclr (&dmacon, v);
- dmacon &= 0x1FFF;
-
- changed = dmacon ^ oldcon;
-
- oldcop = (oldcon & DMA_COPPER) && (oldcon & DMA_MASTER);
- newcop = (dmacon & DMA_COPPER) && (dmacon & DMA_MASTER);
-
- if (oldcop != newcop) {
- if (newcop && !oldcop) {
- compute_spcflag_copper (hpos);
- } else if (!newcop) {
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- }
- }
- if ((dmacon & DMA_BLITPRI) > (oldcon & DMA_BLITPRI) && bltstate != BLT_done)
- set_special (SPCFLAG_BLTNASTY);
-
- if (dmaen (DMA_BLITTER) && bltstate == BLT_init)
- bltstate = BLT_work;
-
- if ((dmacon & (DMA_BLITPRI | DMA_BLITTER | DMA_MASTER)) != (DMA_BLITPRI | DMA_BLITTER | DMA_MASTER))
- unset_special (SPCFLAG_BLTNASTY);
-
- if (changed & (DMA_MASTER | 0x0f))
- audio_hsync (hpos);
-
- if (changed & (DMA_MASTER | DMA_BITPLANE)) {
- ddf_change = vpos;
- if (dmaen (DMA_BITPLANE))
- maybe_start_bpl_dma (hpos);
- }
-
- events_schedule();
-}
-
-static int irq_nmi;
-
-void NMI_delayed (void)
-{
- irq_nmi = 1;
-}
-
-int intlev (void)
-{
- uae_u16 imask = intreq & intena;
- if (irq_nmi) {
- irq_nmi = 0;
- return 7;
- }
- if (!(imask && (intena & 0x4000)))
- return -1;
- if (imask & (0x4000 | 0x2000)) // 13 14
- return 6;
- if (imask & (0x1000 | 0x0800)) // 11 12
- return 5;
- if (imask & (0x0400 | 0x0200 | 0x0100 | 0x0080)) // 7 8 9 10
- return 4;
- if (imask & (0x0040 | 0x0020 | 0x0010)) // 4 5 6
- return 3;
- if (imask & 0x0008) // 3
- return 2;
- if (imask & (0x0001 | 0x0002 | 0x0004)) // 0 1 2
- return 1;
- return -1;
-}
-
-STATIC_INLINE int use_eventmode (void)
-{
- return currprefs.cpu_cycle_exact != 0;
-}
-
-STATIC_INLINE void INTENA (uae_u16 v)
-{
- setclr (&intena,v);
-#if 0
- if (v & 0x40)
- write_log (L"INTENA %04X (%04X) %p\n", intena, v, M68K_GETPC);
-#endif
- if (v & 0x8000) {
- if (use_eventmode ())
- prepare_interrupt ();
- doint ();
- }
-}
-
-void INTREQ_0 (uae_u16 v)
-{
- intreqr = intreq;
- /* data in intreq is immediately available (vsync only currently because there is something unknown..) */
- setclr (&intreqr, v & (0x8000 | 0x20));
-
- if (use_eventmode ())
- prepare_interrupt ();
- if (v & (0x80 | 0x100 | 0x200 | 0x400))
- audio_update_irq (v);
- setclr (&intreq, v);
- intreqr = intreq;
- doint ();
-}
-
-void INTREQ (uae_u16 data)
-{
- INTREQ_0 (data);
- serial_check_irq ();
- rethink_cias ();
-#ifdef A2065
- rethink_a2065 ();
-#endif
-#ifdef A2091
- rethink_a2091 ();
-#endif
-#ifdef CDTV
- rethink_cdtv ();
-#endif
-#ifdef CD32
- rethink_akiko ();
-#endif
- rethink_gayle ();
-}
-
-static void ADKCON (int hpos, uae_u16 v)
-{
- if (currprefs.produce_sound > 0)
- update_audio ();
-
- setclr (&adkcon,v);
- audio_update_adkmasks ();
- DISK_update (hpos);
- if ((v >> 11) & 1)
- serial_uartbreak ((adkcon >> 11) & 1);
-}
-
-static void BEAMCON0 (uae_u16 v)
-{
- if (currprefs.chipset_mask & CSMASK_ECS_AGNUS) {
- if (!(currprefs.chipset_mask & CSMASK_ECS_DENISE))
- v &= 0x20;
- if (v != new_beamcon0) {
- new_beamcon0 = v;
- if (v & ~0x20)
- write_log (L"warning: %04X written to BEAMCON0 PC=%08X\n", v, M68K_GETPC);
- }
- }
-}
-
-#ifndef CUSTOM_SIMPLE
-
-static void varsync (void)
-{
-#ifdef PICASSO96
- if (p96refresh_active)
- {
- extern int p96hack_vpos2;
- static int p96hack_vpos_old;
- if (p96hack_vpos_old == p96hack_vpos2) return;
- vtotal = p96hack_vpos2;
- p96hack_vpos_old = p96hack_vpos2;
- hack_vpos = -1;
- return;
- }
-#endif
- if (!(currprefs.chipset_mask & CSMASK_ECS_DENISE))
- return;
- if (!(beamcon0 & 0x80))
- return;
- hack_vpos = -1;
- dumpsync ();
-}
-#endif
-
-static void BPLxPTH (int hpos, uae_u16 v, int num)
-{
- decide_line (hpos);
- decide_fetch (hpos);
- bplpt[num] = (bplpt[num] & 0x0000ffff) | ((uae_u32)v << 16);
- bplptx[num] = (bplptx[num] & 0x0000ffff) | ((uae_u32)v << 16);
- //write_log (L"%d:%d:BPL%dPTH %08X COP=%08x\n", hpos, vpos, num, bplpt[num], cop_state.ip);
-}
-static void BPLxPTL (int hpos, uae_u16 v, int num)
-{
- decide_line (hpos);
- decide_fetch (hpos);
- bplpt[num] = (bplpt[num] & 0xffff0000) | (v & 0x0000fffe);
- bplptx[num] = (bplptx[num] & 0xffff0000) | (v & 0x0000fffe);
- //write_log (L"%d:%d:BPL%dPTL %08X COP=%08x\n", hpos, vpos, num, bplpt[num], cop_state.ip);
-}
-
-static void BPLCON0_Denise (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_ECS_DENISE))
- v &= ~0x00F1;
- else if (! (currprefs.chipset_mask & CSMASK_AGA))
- v &= ~0x00B1;
- v &= ~(0x0200 | 0x0100 | 0x0080 | 0x0020);
-#if SPRBORDER
- v |= 1;
-#endif
-
- if (bplcon0d == v)
- return;
-
- bplcon0dd = -1;
- // fake unused 0x0080 bit as an EHB bit (see below)
- if (isehb (bplcon0d, bplcon2))
- v |= 0x80;
-
- record_register_change (hpos, 0x100, (bplcon0d & ~(0x800 | 0x400 | 0x80)) | (v & (0x0800 | 0x400 | 0x80)));
-
- bplcon0d = v & ~0x80;
-
-#ifdef ECS_DENISE
- if (currprefs.chipset_mask & CSMASK_ECS_DENISE) {
- decide_sprites (hpos);
- sprres = expand_sprres (v, bplcon3);
- }
-#endif
- if (thisline_decision.plfleft == -1)
- update_denise (hpos);
-}
-
-static void BPLCON0 (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_ECS_DENISE))
- v &= ~0x00F1;
- else if (! (currprefs.chipset_mask & CSMASK_AGA))
- v &= ~0x00B1;
- v &= ~(0x0200 | 0x0100 | 0x0080 | 0x0020);
-
-#if SPRBORDER
- v |= 1;
-#endif
- if (bplcon0 == v)
- return;
-
- if (!issyncstopped ()) {
- vpos_previous = vpos;
- hpos_previous = hpos;
- }
-
- bplcon0 = v;
-
- bpldmainitdelay (hpos);
-
- if (thisline_decision.plfleft == -1)
- BPLCON0_Denise (hpos, v);
-}
-
-#if 0
-
-ddf_change = vpos;
-decide_line (hpos);
-decide_fetch (hpos);
-decide_blitter (hpos);
-
-bplcon0 = v;
-
-badmode = GET_RES_AGNUS (bplcon0) != GET_RES_DENISE (bplcon0);
-
-// fake unused 0x0080 bit as an EHB bit (see above)
-if (isehb (bplcon0, bplcon2))
- v |= 0x80;
-
-BPLCON0_Denise (hpos, v);
-
-expand_fmodes ();
-
-record_register_change (hpos, 0x100, v);
-
-calcdiw ();
-estimate_last_fetch_cycle (hpos);
-
-}
-#endif
-
-STATIC_INLINE void BPLCON1 (int hpos, uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_AGA))
- v &= 0xff;
- if (bplcon1 == v)
- return;
- ddf_change = vpos;
- decide_line (hpos);
- decide_fetch (hpos);
- bplcon1_hpos = hpos;
- bplcon1 = v;
-}
-
-STATIC_INLINE void BPLCON2 (int hpos, uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_AGA))
- v &= 0x7f;
- if (bplcon2 == v)
- return;
- decide_line (hpos);
- bplcon2 = v;
- record_register_change (hpos, 0x104, v);
-}
-
-#ifdef ECS_DENISE
-STATIC_INLINE void BPLCON3 (int hpos, uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_ECS_DENISE))
- return;
- if (!(currprefs.chipset_mask & CSMASK_AGA)) {
- v &= 0x003f;
- v |= 0x0c00;
- }
-#if SPRBORDER
- v |= 2;
-#endif
- if (bplcon3 == v)
- return;
- decide_line (hpos);
- decide_sprites (hpos);
- bplcon3 = v;
- sprres = expand_sprres (bplcon0, bplcon3);
- record_register_change (hpos, 0x106, v);
-}
-#endif
-#ifdef AGA
-STATIC_INLINE void BPLCON4 (int hpos, uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_AGA))
- return;
- if (bplcon4 == v)
- return;
- decide_line (hpos);
- bplcon4 = v;
- record_register_change (hpos, 0x10c, v);
-}
-#endif
-
-static void BPL1MOD (int hpos, uae_u16 v)
-{
- v &= ~1;
- if ((uae_s16)bpl1mod == (uae_s16)v)
- return;
- decide_line (hpos);
- decide_fetch (hpos);
- bpl1mod = v;
-}
-
-static void BPL2MOD (int hpos, uae_u16 v)
-{
- v &= ~1;
- if ((uae_s16)bpl2mod == (uae_s16)v)
- return;
- decide_line (hpos);
- decide_fetch (hpos);
- bpl2mod = v;
-}
-
-/* needed in special OCS/ECS "7-plane" mode. */
-/* (in reality only BPL5DAT and BPL6DAT needed) */
-static void BPLxDAT (int hpos, int num, uae_u16 v)
-{
- decide_line (hpos);
- decide_fetch (hpos);
- bplxdat[num] = v;
- if (num == 0) {
- bpl1dat_written = 1;
- if (thisline_decision.plfleft == -1) {
- thisline_decision.plfleft = hpos;
- compute_delay_offset ();
- }
- }
-}
-
-static void DIWSTRT (int hpos, uae_u16 v)
-{
- if (diwstrt == v && ! diwhigh_written)
- return;
- decide_line (hpos);
- diwhigh_written = 0;
- diwstrt = v;
- calcdiw ();
-}
-
-static void DIWSTOP (int hpos, uae_u16 v)
-{
- if (diwstop == v && ! diwhigh_written)
- return;
- decide_line (hpos);
- diwhigh_written = 0;
- diwstop = v;
- calcdiw ();
-}
-
-static void DIWHIGH (int hpos, uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- return;
- v &= ~(0x8000 | 0x4000 | 0x0080 | 0x0040);
- if (diwhigh_written && diwhigh == v)
- return;
- decide_line (hpos);
- diwhigh_written = 1;
- diwhigh = v;
- calcdiw ();
-}
-
-static void DDFSTRT (int hpos, uae_u16 v)
-{
- v &= 0xfe;
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- v &= 0xfc;
- if (ddfstrt == v && hpos + 2 != ddfstrt)
- return;
- ddf_change = vpos;
- decide_line (hpos);
- ddfstrt_old_hpos = hpos;
- ddfstrt = v;
- calcdiw ();
- if (ddfstop > 0xD4 && (ddfstrt & 4) == 4) {
- static int last_warned;
- last_warned = (last_warned + 1) & 4095;
- if (last_warned == 0)
- write_log (L"WARNING! Very strange DDF values (%x %x).\n", ddfstrt, ddfstop);
- }
-}
-
-static void DDFSTOP (int hpos, uae_u16 v)
-{
- v &= 0xfe;
- if (!(currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- v &= 0xfc;
- if (ddfstop == v && hpos + 2 != ddfstop)
- return;
- ddf_change = vpos;
- decide_line (hpos);
- decide_fetch (hpos);
- decide_blitter (hpos);
- ddfstop = v;
- calcdiw ();
- if (fetch_state != fetch_not_started)
- estimate_last_fetch_cycle (hpos);
- if (ddfstop > 0xD4 && (ddfstrt & 4) == 4) {
- static int last_warned;
- if (last_warned == 0)
- write_log (L"WARNING! Very strange DDF values (%x).\n", ddfstop);
- last_warned = (last_warned + 1) & 4095;
- }
-}
-
-static void FMODE (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_AGA))
- v = 0;
- v &= 0xC00F;
- if (fmode == v)
- return;
- ddf_change = vpos;
- fmode = v;
- sprite_width = GET_SPRITEWIDTH (fmode);
- bpldmainitdelay (hpos);
-}
-
-static void FNULL (uae_u16 v)
-{
-
-}
-
-static void BLTADAT (int hpos, uae_u16 v)
-{
- maybe_blit (hpos, 0);
-
- blt_info.bltadat = v;
-}
-/*
-* "Loading data shifts it immediately" says the HRM. Well, that may
-* be true for BLTBDAT, but not for BLTADAT - it appears the A data must be
-* loaded for every word so that AFWM and ALWM can be applied.
-*/
-static void BLTBDAT (int hpos, uae_u16 v)
-{
- maybe_blit (hpos, 0);
-
- if (bltcon1 & 2)
- blt_info.bltbhold = v << (bltcon1 >> 12);
- else
- blt_info.bltbhold = v >> (bltcon1 >> 12);
- blt_info.bltbdat = v;
-}
-static void BLTCDAT (int hpos, uae_u16 v) { maybe_blit (hpos, 0); blt_info.bltcdat = v; reset_blit (0); }
-
-static void BLTAMOD (int hpos, uae_u16 v) { maybe_blit (hpos, 1); blt_info.bltamod = (uae_s16)(v & 0xFFFE); reset_blit (0); }
-static void BLTBMOD (int hpos, uae_u16 v) { maybe_blit (hpos, 1); blt_info.bltbmod = (uae_s16)(v & 0xFFFE); reset_blit (0); }
-static void BLTCMOD (int hpos, uae_u16 v) { maybe_blit (hpos, 1); blt_info.bltcmod = (uae_s16)(v & 0xFFFE); reset_blit (0); }
-static void BLTDMOD (int hpos, uae_u16 v) { maybe_blit (hpos, 1); blt_info.bltdmod = (uae_s16)(v & 0xFFFE); reset_blit (0); }
-
-static void BLTCON0 (int hpos, uae_u16 v) { maybe_blit (hpos, 2); bltcon0 = v; reset_blit (1); }
-/* The next category is "Most useless hardware register".
-* And the winner is... */
-static void BLTCON0L (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- return;
- maybe_blit (hpos, 2); bltcon0 = (bltcon0 & 0xFF00) | (v & 0xFF);
- reset_blit (1);
-}
-static void BLTCON1 (int hpos, uae_u16 v) { maybe_blit (hpos, 2); bltcon1 = v; reset_blit (2); }
-
-static void BLTAFWM (int hpos, uae_u16 v) { maybe_blit (hpos, 2); blt_info.bltafwm = v; reset_blit (0); }
-static void BLTALWM (int hpos, uae_u16 v) { maybe_blit (hpos, 2); blt_info.bltalwm = v; reset_blit (0); }
-
-static void BLTAPTH (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltapt = (bltapt & 0xffff) | ((uae_u32)v << 16); }
-static void BLTAPTL (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltapt = (bltapt & ~0xffff) | (v & 0xFFFE); }
-static void BLTBPTH (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltbpt = (bltbpt & 0xffff) | ((uae_u32)v << 16); }
-static void BLTBPTL (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltbpt = (bltbpt & ~0xffff) | (v & 0xFFFE); }
-static void BLTCPTH (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltcpt = (bltcpt & 0xffff) | ((uae_u32)v << 16); }
-static void BLTCPTL (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltcpt = (bltcpt & ~0xffff) | (v & 0xFFFE); }
-static void BLTDPTH (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltdpt = (bltdpt & 0xffff) | ((uae_u32)v << 16); }
-static void BLTDPTL (int hpos, uae_u16 v) { maybe_blit (hpos, 0); bltdpt = (bltdpt & ~0xffff) | (v & 0xFFFE); }
-
-static void BLTSIZE (int hpos, uae_u16 v)
-{
- maybe_blit (hpos, 0);
-
- blt_info.vblitsize = v >> 6;
- blt_info.hblitsize = v & 0x3F;
- if (!blt_info.vblitsize)
- blt_info.vblitsize = 1024;
- if (!blt_info.hblitsize)
- blt_info.hblitsize = 64;
- do_blitter (hpos, copper_access);
-}
-
-static void BLTSIZV (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- return;
- maybe_blit (hpos, 0);
- blt_info.vblitsize = v & 0x7FFF;
-}
-
-static void BLTSIZH (int hpos, uae_u16 v)
-{
- if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
- return;
- maybe_blit (hpos, 0);
- blt_info.hblitsize = v & 0x7FF;
- if (!blt_info.vblitsize)
- blt_info.vblitsize = 32768;
- if (!blt_info.hblitsize)
- blt_info.hblitsize = 0x800;
- do_blitter (hpos, copper_access);
-}
-
-STATIC_INLINE void spr_arm (int num, int state)
-{
- switch (state) {
- case 0:
- nr_armed -= spr[num].armed;
- spr[num].armed = 0;
- break;
- default:
- nr_armed += 1 - spr[num].armed;
- spr[num].armed = 1;
- break;
- }
-}
-
-STATIC_INLINE void sprstartstop (struct sprite *s)
-{
- if (vpos == s->vstart)
- s->dmastate = 1;
- if (vpos == s->vstop)
- s->dmastate = 0;
-}
-
-STATIC_INLINE void SPRxCTLPOS (int num)
-{
- int sprxp;
- struct sprite *s = &spr[num];
-
- sprstartstop (s);
- sprxp = (sprpos[num] & 0xFF) * 2 + (sprctl[num] & 1);
- sprxp <<= sprite_buffer_res;
- /* Quite a bit salad in this register... */
- if (0) {
- }
-#ifdef AGA
- else if (currprefs.chipset_mask & CSMASK_AGA) {
- sprxp |= ((sprctl[num] >> 3) & 3) >> (RES_MAX - sprite_buffer_res);
- s->dblscan = sprpos[num] & 0x80;
- }
-#endif
-#ifdef ECS_DENISE
- else if (currprefs.chipset_mask & CSMASK_ECS_DENISE) {
- sprxp |= ((sprctl[num] >> 3) & 2) >> (RES_MAX - sprite_buffer_res);
- }
-#endif
- s->xpos = sprxp;
- s->vstart = (sprpos[num] >> 8) | ((sprctl[num] << 6) & 0x100);
- s->vstop = (sprctl[num] >> 8) | ((sprctl[num] << 7) & 0x100);
- if (currprefs.chipset_mask & CSMASK_ECS_AGNUS) {
- s->vstart |= (sprctl[num] << 3) & 0x200;
- s->vstop |= (sprctl[num] << 4) & 0x200;
- }
- sprstartstop (s);
-}
-
-STATIC_INLINE void SPRxCTL_1 (uae_u16 v, int num, int hpos)
-{
- struct sprite *s = &spr[num];
- sprctl[num] = v;
- spr_arm (num, 0);
- SPRxCTLPOS (num);
-#if SPRITE_DEBUG > 0
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dCTL %04X P=%06X VSTRT=%d VSTOP=%d HSTRT=%d D=%d A=%d CP=%x PC=%x\n",
- vpos, hpos, num, v, s->pt, s->vstart, s->vstop, s->xpos, spr[num].dmastate, spr[num].armed, cop_state.ip, M68K_GETPC);
- }
-#endif
-
-}
-STATIC_INLINE void SPRxPOS_1 (uae_u16 v, int num, int hpos)
-{
- struct sprite *s = &spr[num];
- sprpos[num] = v;
- SPRxCTLPOS (num);
-#if SPRITE_DEBUG > 0
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dPOS %04X P=%06X VSTRT=%d VSTOP=%d HSTRT=%d D=%d A=%d CP=%x PC=%x\n",
- vpos, hpos, num, v, s->pt, s->vstart, s->vstop, s->xpos, spr[num].dmastate, spr[num].armed, cop_state.ip, M68K_GETPC);
- }
-#endif
-}
-STATIC_INLINE void SPRxDATA_1 (uae_u16 v, int num, int hpos)
-{
- sprdata[num][0] = v;
-#ifdef AGA
- sprdata[num][1] = v;
- sprdata[num][2] = v;
- sprdata[num][3] = v;
-#endif
- spr_arm (num, 1);
-#if SPRITE_DEBUG > 1
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dDATA %04X P=%06X D=%d A=%d PC=%x\n",
- vpos, hpos, num, v, spr[num].pt, spr[num].dmastate, spr[num].armed, M68K_GETPC);
- }
-#endif
-}
-STATIC_INLINE void SPRxDATB_1 (uae_u16 v, int num, int hpos)
-{
- sprdatb[num][0] = v;
-#ifdef AGA
- sprdatb[num][1] = v;
- sprdatb[num][2] = v;
- sprdatb[num][3] = v;
-#endif
-#if SPRITE_DEBUG > 1
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dDATB %04X P=%06X D=%d A=%d PC=%x\n",
- vpos, hpos, num, v, spr[num].pt, spr[num].dmastate, spr[num].armed, M68K_GETPC);
- }
-#endif
-}
-static void SPRxDATA (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxDATA_1 (v, num, hpos); }
-static void SPRxDATB (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxDATB_1 (v, num, hpos); }
-static void SPRxCTL (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxCTL_1 (v, num, hpos); }
-static void SPRxPOS (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxPOS_1 (v, num, hpos); }
-static void SPRxPTH (int hpos, uae_u16 v, int num)
-{
- decide_sprites (hpos);
- if (hpos - 1 != spr[num].ptxhpos) {
- spr[num].pt &= 0xffff;
- spr[num].pt |= (uae_u32)v << 16;
- }
-#if SPRITE_DEBUG > 0
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dPTH %06X\n", vpos, hpos, num, spr[num].pt);
- }
-#endif
-}
-static void SPRxPTL (int hpos, uae_u16 v, int num)
-{
- decide_sprites (hpos);
- if (hpos - 1 != spr[num].ptxhpos) {
- spr[num].pt &= ~0xffff;
- spr[num].pt |= v;
- }
-#if SPRITE_DEBUG > 0
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:SPR%dPTL %06X\n", vpos, hpos, num, spr[num].pt);
- }
-#endif
-}
-
-static void CLXCON (uae_u16 v)
-{
- clxcon = v;
- clxcon_bpl_enable = (v >> 6) & 63;
- clxcon_bpl_match = v & 63;
-}
-
-static void CLXCON2 (uae_u16 v)
-{
- if (!(currprefs.chipset_mask & CSMASK_AGA))
- return;
- clxcon2 = v;
- clxcon_bpl_enable |= v & (0x40|0x80);
- clxcon_bpl_match |= (v & (0x01|0x02)) << 6;
-}
-
-static uae_u16 CLXDAT (void)
-{
- uae_u16 v = clxdat | 0x8000;
- clxdat = 0;
- return v;
-}
-
-#ifdef AGA
-
-void dump_aga_custom (void)
-{
- int c1, c2, c3, c4;
- uae_u32 rgb1, rgb2, rgb3, rgb4;
-
- for (c1 = 0; c1 < 64; c1++) {
- c2 = c1 + 64;
- c3 = c2 + 64;
- c4 = c3 + 64;
- rgb1 = current_colors.color_regs_aga[c1] | (color_regs_aga_genlock[c1] << 31);
- rgb2 = current_colors.color_regs_aga[c2] | (color_regs_aga_genlock[c2] << 31);
- rgb3 = current_colors.color_regs_aga[c3] | (color_regs_aga_genlock[c3] << 31);
- rgb4 = current_colors.color_regs_aga[c4] | (color_regs_aga_genlock[c4] << 31);
- console_out_f (L"%3d %08X %3d %08X %3d %08X %3d %08X\n",
- c1, rgb1, c2, rgb2, c3, rgb3, c4, rgb4);
- }
-}
-
-static uae_u16 COLOR_READ (int num)
-{
- int cr, cg, cb, colreg;
- uae_u16 cval;
-
- if (!(currprefs.chipset_mask & CSMASK_AGA) || !(bplcon2 & 0x0100))
- return 0xffff;
-
- colreg = ((bplcon3 >> 13) & 7) * 32 + num;
- cr = current_colors.color_regs_aga[colreg] >> 16;
- cg = (current_colors.color_regs_aga[colreg] >> 8) & 0xFF;
- cb = current_colors.color_regs_aga[colreg] & 0xFF;
- if (bplcon3 & 0x200) {
- cval = ((cr & 15) << 8) | ((cg & 15) << 4) | ((cb & 15) << 0);
- } else {
- cval = ((cr >> 4) << 8) | ((cg >> 4) << 4) | ((cb >> 4) << 0);
- if (color_regs_aga_genlock[num])
- cval |= 0x8000;
- }
- return cval;
-}
-#endif
-
-static void COLOR_WRITE (int hpos, uae_u16 v, int num)
-{
- v &= 0xFFF;
-#ifdef AGA
- if (currprefs.chipset_mask & CSMASK_AGA) {
- int r,g,b;
- int cr,cg,cb;
- int colreg;
- uae_u32 cval;
-
- /* writing is disabled when RDRAM=1 */
- if (bplcon2 & 0x0100)
- return;
-
- colreg = ((bplcon3 >> 13) & 7) * 32 + num;
- r = (v & 0xF00) >> 8;
- g = (v & 0xF0) >> 4;
- b = (v & 0xF) >> 0;
- cr = current_colors.color_regs_aga[colreg] >> 16;
- cg = (current_colors.color_regs_aga[colreg] >> 8) & 0xFF;
- cb = current_colors.color_regs_aga[colreg] & 0xFF;
-
- if (bplcon3 & 0x200) {
- cr &= 0xF0; cr |= r;
- cg &= 0xF0; cg |= g;
- cb &= 0xF0; cb |= b;
- } else {
- cr = r + (r << 4);
- cg = g + (g << 4);
- cb = b + (b << 4);
- color_regs_aga_genlock[colreg] = v >> 15;
- }
- cval = (cr << 16) | (cg << 8) | cb;
- if (cval == current_colors.color_regs_aga[colreg])
- return;
-
- /* Call this with the old table still intact. */
- record_color_change (hpos, colreg, cval);
- remembered_color_entry = -1;
- current_colors.color_regs_aga[colreg] = cval;
- current_colors.acolors[colreg] = getxcolor (cval);
- } else {
-#endif
- if (current_colors.color_regs_ecs[num] == v)
- return;
- /* Call this with the old table still intact. */
- record_color_change (hpos, num, v);
- remembered_color_entry = -1;
- current_colors.color_regs_ecs[num] = v;
- current_colors.acolors[num] = getxcolor (v);
-#ifdef AGA
- }
-#endif
-}
-
-/* The copper code. The biggest nightmare in the whole emulator.
-
-Alright. The current theory:
-1. Copper moves happen 2 cycles after state READ2 is reached.
-It can't happen immediately when we reach READ2, because the
-data needs time to get back from the bus. An additional 2
-cycles are needed for non-Agnus registers, to take into account
-the delay for moving data from chip to chip.
-2. As stated in the HRM, a WAIT really does need an extra cycle
-to wake up. This is implemented by _not_ falling through from
-a successful wait to READ1, but by starting the next cycle.
-(Note: the extra cycle for the WAIT apparently really needs a
-free cycle; i.e. contention with the bitplane fetch can slow
-it down).
-3. Apparently, to compensate for the extra wake up cycle, a WAIT
-will use the _incremented_ horizontal position, so the WAIT
-cycle normally finishes two clocks earlier than the position
-it was waiting for. The extra cycle then takes us to the
-position that was waited for.
-If the earlier cycle is busy with a bitplane, things change a bit.
-E.g., waiting for position 0x50 in a 6 plane display: In cycle
-0x4e, we fetch BPL5, so the wait wakes up in 0x50, the extra cycle
-takes us to 0x54 (since 0x52 is busy), then we have READ1/READ2,
-and the next register write is at 0x5c.
-4. The last cycle in a line is not usable for the copper.
-5. A 4 cycle delay also applies to the WAIT instruction. This means
-that the second of two back-to-back WAITs (or a WAIT whose
-condition is immediately true) takes 8 cycles.
-6. This also applies to a SKIP instruction. The copper does not
-fetch the next instruction while waiting for the second word of
-a WAIT or a SKIP to arrive.
-7. A SKIP also seems to need an unexplained additional two cycles
-after its second word arrives; this is _not_ a memory cycle (I
-think, the documentation is pretty clear on this).
-8. Two additional cycles are inserted when writing to COPJMP1/2. */
-
-/* Determine which cycles are available for the copper in a display
-* with a agiven number of planes. */
-
-STATIC_INLINE int copper_cant_read (int hpos, int alloc)
-{
- if (hpos + 1 >= maxhpos) // first refresh slot
- return 1;
- if ((hpos == maxhpos - 3) && (maxhpos & 1)) {
- if (alloc)
- alloc_cycle (hpos, CYCLE_COPPER);
- return -1;
- }
- return is_bitplane_dma_inline (hpos);
-}
-
-static int custom_wput_copper (int hpos, uaecptr addr, uae_u32 value, int noget)
-{
- int v;
-
- debug_wputpeek (0xdff000 + addr, value);
- copper_access = 1;
- v = custom_wput_1 (hpos, addr, value, noget);
- copper_access = 0;
- return v;
-}
-
-static void dump_copper (TCHAR *error, int until_hpos)
-{
- write_log (L"%s: vpos=%d until_hpos=%d\n",
- error, vpos, until_hpos);
- write_log (L"cvcmp=%d chcmp=%d chpos=%d cvpos=%d ci1=%04X ci2=%04X\n",
- cop_state.vcmp,cop_state.hcmp,cop_state.hpos,cop_state.vpos,cop_state.saved_i1,cop_state.saved_i2);
- write_log (L"cstate=%d ip=%x SPCFLAGS=%x\n",
- cop_state.state, cop_state.ip, regs.spcflags);
-}
-
-// "emulate" chip internal delays, not the right place but fast and 99.9% programs
-// use only copper to write BPLCON1 etc.. (exception is HulkaMania/TSP..)
-// this table should be filled with zeros and done somewhere else..
-static int customdelay[]= {
- 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* 32 0x00 - 0x3e */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x40 - 0x5e */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x60 - 0x7e */
- 0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0, /* 0x80 - 0x9e */
- 1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0, /* 32 0xa0 - 0xde */
- /* BPLxPTH/BPLxPTL */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 16 */
- /* BPLCON0-3,BPLMOD1-2 */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 16 */
- /* SPRxPTH/SPRxPTL */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 16 */
- /* SPRxPOS/SPRxCTL/SPRxDATA/SPRxDATB */
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- /* COLORxx */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- /* RESERVED */
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-};
-
-static void update_copper (int until_hpos)
-{
- int vp = vpos & (((cop_state.saved_i2 >> 8) & 0x7F) | 0x80);
- int c_hpos = cop_state.hpos;
-
- if (nocustom ())
- return;
-
- if (cop_state.state == COP_wait && vp < cop_state.vcmp) {
- dump_copper (L"error2", until_hpos);
- copper_enabled_thisline = 0;
- cop_state.state = COP_stop;
- unset_special (SPCFLAG_COPPER);
- return;
- }
-
- if (until_hpos <= last_copper_hpos)
- return;
-
- if (until_hpos > (maxhpos & ~1))
- until_hpos = maxhpos & ~1;
-
- for (;;) {
- int old_hpos = c_hpos;
- int hp;
-
- if (c_hpos >= until_hpos)
- break;
-
-
- /* So we know about the fetch state. */
- decide_line (c_hpos);
- decide_fetch (c_hpos);
-
- if (cop_state.movedelay > 0) {
- cop_state.movedelay--;
- if (cop_state.movedelay == 0) {
- custom_wput_copper (c_hpos, cop_state.moveaddr, cop_state.movedata, 0);
- }
- }
-
- if ((c_hpos == maxhpos - 3) && (maxhpos & 1))
- c_hpos += 1;
- else
- c_hpos += 2;
-
- if (cop_state.strobe) {
- if (cop_state.strobe > 0)
- cop_state.ip = cop_state.strobe == 1 ? cop1lc : cop2lc;
- cop_state.strobe = 0;
- }
-
- switch (cop_state.state)
- {
- case COP_wait_in2:
- if (copper_cant_read (old_hpos, 0))
- continue;
- cop_state.state = COP_wait1;
- break;
- case COP_skip_in2:
- if (copper_cant_read (old_hpos, 0))
- continue;
- cop_state.state = COP_skip1;
- break;
- case COP_strobe_extra:
- // wait 1 copper cycle doing nothing
- cop_state.state = COP_strobe_delay1;
- break;
- case COP_strobe_delay1:
- // first cycle after COPJMP is just like normal first read cycle
- if (copper_cant_read (old_hpos, 1))
- continue;
- cop_state.state = COP_strobe_delay2;
- alloc_cycle (old_hpos, CYCLE_COPPER);
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (0x8c, chipmem_agnus_wget (cop_state.ip), cop_state.ip, old_hpos, vpos, DMARECORD_COPPER);
-#endif
- break;
- case COP_strobe_delay2:
- // second cycle after COPJMP is like second read cycle except
- // there is 0x1FE as a target register
- // (following word is still read normally and tossed away)
- if (copper_cant_read (old_hpos, 1))
- continue;
- cop_state.state = COP_read1;
- alloc_cycle (old_hpos, CYCLE_COPPER);
- if (debug_dma)
- record_dma (0x1fe, chipmem_agnus_wget (cop_state.ip + 2), cop_state.ip + 2, old_hpos, vpos, DMARECORD_COPPER);
- break;
- case COP_start_delay:
- if (copper_cant_read (old_hpos, 1))
- continue;
- cop_state.state = COP_read1;
- alloc_cycle (old_hpos, CYCLE_COPPER);
- if (debug_dma)
- record_dma (0x1fe, 0, 0xffffffff, old_hpos, vpos, DMARECORD_COPPER);
- break;
-
- case COP_read1:
- if (copper_cant_read (old_hpos, 1))
- continue;
- cop_state.i1 = last_custom_value1 = chipmem_agnus_wget (cop_state.ip);
- alloc_cycle (old_hpos, CYCLE_COPPER);
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (0x8c, cop_state.i1, cop_state.ip, old_hpos, vpos, DMARECORD_COPPER);
-#endif
- cop_state.ip += 2;
- cop_state.state = COP_read2;
- break;
-
- case COP_read2:
- if (copper_cant_read (old_hpos, 1))
- continue;
- cop_state.i2 = last_custom_value1 = chipmem_agnus_wget (cop_state.ip);
- alloc_cycle (old_hpos, CYCLE_COPPER);
- cop_state.ip += 2;
- cop_state.saved_i1 = cop_state.i1;
- cop_state.saved_i2 = cop_state.i2;
- cop_state.saved_ip = cop_state.ip;
-
- if (cop_state.i1 & 1) { // WAIT or SKIP
- cop_state.ignore_next = 0;
- if (cop_state.i2 & 1)
- cop_state.state = COP_skip_in2;
- else
- cop_state.state = COP_wait_in2;
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (0x8c, cop_state.i2, cop_state.ip - 2, old_hpos, vpos, DMARECORD_COPPER);
-#endif
- } else { // MOVE
- unsigned int reg = cop_state.i1 & 0x1FE;
- uae_u16 data = cop_state.i2;
- cop_state.state = COP_read1;
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (reg, data, cop_state.ip - 2, old_hpos, vpos, DMARECORD_COPPER);
-#endif
- test_copper_dangerous (reg);
- if (! copper_enabled_thisline)
- goto out; // was "dangerous" register -> copper stopped
- if (cop_state.ignore_next) {
- reg = 0x1fe;
- cop_state.ignore_next = 0;
- }
-
- cop_state.last_write = reg;
- cop_state.last_write_hpos = old_hpos;
- if (reg == 0x88) {
- cop_state.ip = cop1lc;
- cop_state.state = COP_strobe_delay1;
- } else if (reg == 0x8A) {
- cop_state.ip = cop2lc;
- cop_state.state = COP_strobe_delay1;
- } else {
- // FIX: all copper writes happen 1 cycle later than CPU writes
- if (customdelay[reg / 2]) {
- cop_state.moveaddr = reg;
- cop_state.movedata = data;
- cop_state.movedelay = customdelay[cop_state.moveaddr / 2];
- } else {
- int hpos2 = old_hpos;
- custom_wput_copper (hpos2, reg, data, 0);
- hpos2++;
- if (!nocustom () && reg >= 0x140 && reg < 0x180 && hpos2 >= SPR0_HPOS && hpos2 < SPR0_HPOS + 4 * MAX_SPRITES) {
- do_sprites (hpos2);
- }
- }
- }
-#ifdef DEBUGGER
- if (debug_copper)
- record_copper (cop_state.ip - 4, old_hpos, vpos);
-#endif
- }
- break;
-
- case COP_wait1:
- /* There's a nasty case here. As stated in the "Theory" comment above, we
- test against the incremented copper position. I believe this means that
- we have to increment the _vertical_ position at the last cycle in the line,
- and set the horizontal position to 0.
- Normally, this isn't going to make a difference, since we consider these
- last cycles unavailable for the copper, so waking up in the last cycle has
- the same effect as waking up at the start of the line. However, there is
- one possible problem: If we're at 0xFFE0, any wait for an earlier position
- must _not_ complete (since, in effect, the current position will be back
- at 0/0). This can be seen in the Superfrog copper list.
- Things get monstrously complicated if we try to handle this "properly" by
- incrementing vpos and setting c_hpos to 0. Especially the various speedup
- hacks really assume that vpos remains constant during one line. Hence,
- this hack: defer the entire decision until the next line if necessary. */
- if (c_hpos >= (maxhpos & ~1) || (c_hpos & 1))
- break;
-
- cop_state.state = COP_wait;
-
- cop_state.vcmp = (cop_state.saved_i1 & (cop_state.saved_i2 | 0x8000)) >> 8;
- cop_state.hcmp = (cop_state.saved_i1 & cop_state.saved_i2 & 0xFE);
-
- vp = vpos & (((cop_state.saved_i2 >> 8) & 0x7F) | 0x80);
-
- if (cop_state.saved_i1 == 0xFFFF && cop_state.saved_i2 == 0xFFFE) {
- cop_state.state = COP_stop;
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- goto out;
- }
- if (vp < cop_state.vcmp) {
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- goto out;
- }
-
- /* fall through */
- case COP_wait:
- if (copper_cant_read (old_hpos, 0))
- continue;
-
- hp = c_hpos & (cop_state.saved_i2 & 0xFE);
- if (vp == cop_state.vcmp && hp < cop_state.hcmp)
- break;
-
- /* Now we know that the comparisons were successful. We might still
- have to wait for the blitter though. */
- if ((cop_state.saved_i2 & 0x8000) == 0) {
- decide_blitter (old_hpos);
- if (bltstate != BLT_done) {
- /* We need to wait for the blitter. */
- cop_state.state = COP_bltwait;
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- goto out;
- } else {
- if (debug_dma)
- record_dma_event (DMA_EVENT_COPPERWAKE, old_hpos, vp);
- }
- }
-
-#ifdef DEBUGGER
- if (debug_copper)
- record_copper (cop_state.ip - 4, old_hpos, vpos);
-#endif
-
- cop_state.state = COP_read1;
- break;
-
- case COP_skip1:
- {
- unsigned int vcmp, hcmp, vp1, hp1;
-
- if (c_hpos >= (maxhpos & ~1) || (c_hpos & 1))
- break;
- if (copper_cant_read (old_hpos, 0))
- continue;
-
- vcmp = (cop_state.saved_i1 & (cop_state.saved_i2 | 0x8000)) >> 8;
- hcmp = (cop_state.saved_i1 & cop_state.saved_i2 & 0xFE);
- vp1 = vpos & (((cop_state.saved_i2 >> 8) & 0x7F) | 0x80);
- hp1 = c_hpos & (cop_state.saved_i2 & 0xFE);
-
- if ((vp1 > vcmp || (vp1 == vcmp && hp1 >= hcmp)) && ((cop_state.saved_i2 & 0x8000) != 0 || bltstate == BLT_done))
- cop_state.ignore_next = 1;
-
- cop_state.state = COP_read1;
-
-#ifdef DEBUGGER
- if (debug_copper)
- record_copper (cop_state.ip - 4, old_hpos, vpos);
-#endif
-
- break;
- }
- default:
- break;
- }
- }
-
-out:
- cop_state.hpos = c_hpos;
- last_copper_hpos = until_hpos;
-}
-
-static void compute_spcflag_copper (int hpos)
-{
- int wasenabled = copper_enabled_thisline;
-
- copper_enabled_thisline = 0;
- unset_special (SPCFLAG_COPPER);
- if (!dmaen (DMA_COPPER) || cop_state.state == COP_stop || cop_state.state == COP_bltwait || nocustom ())
- return;
-
- if (cop_state.state == COP_wait) {
- int vp = vpos & (((cop_state.saved_i2 >> 8) & 0x7F) | 0x80);
-
- if (vp < cop_state.vcmp)
- return;
- }
- // do not use past cycles if starting for the first time in this line
- // (write to DMACON for example) hpos+1 for long lines
- if (!wasenabled && cop_state.hpos < hpos && hpos < maxhpos) {
- hpos = (hpos + 2) & ~1;
- if (hpos > (maxhpos_short & ~1))
- hpos = maxhpos_short & ~1;
- cop_state.hpos = hpos;
- }
- copper_enabled_thisline = 1;
- set_special (SPCFLAG_COPPER);
-}
-
-/*
-Copper writes to BLTSIZE: 3 blitter idle cycles, blitter normal cycle starts
-(CPU write to BLTSIZE only have 2 idle cycles at start)
-
-BFD=0 wait: 1 cycle (or 2 if hpos is not aligned) delay before wait ends
-*/
-void blitter_done_notify (int hpos)
-{
- int vp = vpos;
-
- if (cop_state.state != COP_bltwait)
- return;
-
- hpos += 3;
- hpos &= ~1;
- if (hpos >= maxhpos) {
- hpos -= maxhpos;
- vp++;
- }
- cop_state.hpos = hpos;
- cop_state.vpos = vp;
- cop_state.state = COP_read1;
- if (debug_dma)
- record_dma_event (DMA_EVENT_COPPERWAKE, hpos, vp);
-
- if (dmaen (DMA_COPPER) && vp == vpos) {
- copper_enabled_thisline = 1;
- set_special (SPCFLAG_COPPER);
- }
-}
-
-void do_copper (void)
-{
- int hpos = current_hpos ();
- update_copper (hpos);
-}
-
-/* ADDR is the address that is going to be read/written; this access is
-the reason why we want to update the copper. This function is also
-used from hsync_handler to finish up the line; for this case, we check
-hpos against maxhpos. */
-STATIC_INLINE void sync_copper_with_cpu (int hpos, int do_schedule)
-{
- /* Need to let the copper advance to the current position. */
- if (copper_enabled_thisline)
- update_copper (hpos);
-}
-
-static void cursorsprite (void)
-{
- if (!dmaen (DMA_SPRITE) || first_planes_vpos == 0)
- return;
- sprite_0 = spr[0].pt;
- sprite_0_height = spr[0].vstop - spr[0].vstart;
- sprite_0_colors[0] = 0;
- sprite_0_doubled = 0;
- if (sprres == 0)
- sprite_0_doubled = 1;
- if (currprefs.chipset_mask & CSMASK_AGA) {
- int sbasecol = ((bplcon4 >> 4) & 15) << 4;
- sprite_0_colors[1] = current_colors.color_regs_aga[sbasecol + 1];
- sprite_0_colors[2] = current_colors.color_regs_aga[sbasecol + 2];
- sprite_0_colors[3] = current_colors.color_regs_aga[sbasecol + 3];
- } else {
- sprite_0_colors[1] = xcolors[current_colors.color_regs_ecs[17]];
- sprite_0_colors[2] = xcolors[current_colors.color_regs_ecs[18]];
- sprite_0_colors[3] = xcolors[current_colors.color_regs_ecs[19]];
- }
- sprite_0_width = sprite_width;
- if (currprefs.input_tablet && currprefs.input_magic_mouse) {
- if (currprefs.input_magic_mouse_cursor == MAGICMOUSE_HOST_ONLY && mousehack_alive ())
- magic_sprite_mask &= ~1;
- else
- magic_sprite_mask |= 1;
- }
-}
-
-STATIC_INLINE uae_u16 sprite_fetch (struct sprite *s, int dma, int hpos, int cycle, int mode)
-{
- uae_u16 data = last_custom_value1;
- if (dma) {
- if (cycle)
- s->ptxhpos = hpos;
- data = last_custom_value1 = chipmem_agnus_wget (s->pt);
- alloc_cycle (hpos, CYCLE_SPRITE);
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma ((s - &spr[0]) * 8 + 0x140 + mode * 4 + cycle * 2, data, s->pt, hpos, vpos, DMARECORD_SPRITE);
-#endif
- }
- s->pt += 2;
- return data;
-}
-STATIC_INLINE uae_u16 sprite_fetch2 (struct sprite *s, int dma, int hpos, int cycle, int mode)
-{
- uae_u16 data = last_custom_value1;
- if (dma) {
- data = last_custom_value1 = chipmem_agnus_wget (s->pt);
- }
- s->pt += 2;
- return data;
-}
-
-STATIC_INLINE void do_sprites_1 (int num, int cycle, int hpos)
-{
- struct sprite *s = &spr[num];
- int dma, posctl = 0;
- uae_u16 data;
- int isdma = dmaen (DMA_SPRITE);
-
- if (isdma && vpos == sprite_vblank_endline)
- spr_arm (num, 0);
-
-#ifdef AGA
- if (isdma && s->dblscan && (fmode & 0x8000) && (vpos & 1) != (s->vstart & 1) && s->dmastate) {
- spr_arm (num, 1);
- return;
- }
-#endif
-#if SPRITE_DEBUG > 3
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY)
- write_log (L"%d:%d:slot%d:%d\n", vpos, hpos, num, cycle);
-#endif
- if (vpos == s->vstart) {
-#if SPRITE_DEBUG > 0
- if (!s->dmastate && vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY)
- write_log (L"%d:%d:SPR%d START\n", vpos, hpos, num);
-#endif
- s->dmastate = 1;
- if (num == 0 && cycle == 0)
- cursorsprite ();
- }
- if (vpos == s->vstop || vpos == sprite_vblank_endline) {
-#if SPRITE_DEBUG > 0
- if (s->dmastate && vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY)
- write_log (L"%d:%d:SPR%d STOP\n", vpos, hpos, num);
-#endif
- s->dmastate = 0;
-#if 1
- if (vpos == s->vstop) {
- spr_arm (num, 0);
- //return;
- }
-#endif
- }
-
- if (!isdma)
- return;
- if (cycle && !s->dmacycle)
- return; /* Superfrog intro flashing bee fix */
-
- dma = hpos < plfstrt || diwstate != DIW_waiting_stop;
- if (vpos == s->vstop || vpos == sprite_vblank_endline) {
- s->dmastate = 0;
- posctl = 1;
- if (dma) {
- data = sprite_fetch (s, dma, hpos, cycle, 0);
- switch (sprite_width)
- {
- case 64:
- sprite_fetch2 (s, dma, hpos, cycle, 0);
- sprite_fetch2 (s, dma, hpos, cycle, 0);
- case 32:
- sprite_fetch2 (s, dma, hpos, cycle, 0);
- break;
- }
- } else {
- data = cycle == 0 ? sprpos[num] : sprctl[num];
- }
-#if SPRITE_DEBUG > 1
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:dma:P=%06X ", vpos, hpos, s->pt);
- }
-#endif
- //write_log (L"%d:%d: %04X=%04X\n", vpos, hpos, 0x140 + cycle * 2 + num * 8, data);
- if (cycle == 0) {
- SPRxPOS_1 (data, num, hpos);
- s->dmacycle = 1;
- } else {
- SPRxCTL_1 (data, num, hpos);
- s->dmastate = 0;
- sprstartstop (s);
- }
- }
- if (s->dmastate && !posctl) {
- uae_u16 data;
-
- data = sprite_fetch (s, dma, hpos, cycle, 1);
-#if SPRITE_DEBUG > 1
- if (vpos >= SPRITE_DEBUG_MINY && vpos <= SPRITE_DEBUG_MAXY) {
- write_log (L"%d:%d:dma:P=%06X ", vpos, hpos, s->pt);
- }
-#endif
- if (cycle == 0) {
- SPRxDATA_1 (dma ? data : sprdata[num][0], num, hpos);
- s->dmacycle = 1;
- } else {
- SPRxDATB_1 (dma ? data : sprdatb[num][0], num, hpos);
- spr_arm (num, 1);
- }
-#ifdef AGA
- switch (sprite_width)
- {
- case 64:
- {
- uae_u16 data32 = sprite_fetch2 (s, dma, hpos, cycle, 1);
- uae_u16 data641 = sprite_fetch2 (s, dma, hpos, cycle, 1);
- uae_u16 data642 = sprite_fetch2 (s, dma, hpos, cycle, 1);
- if (dma) {
- if (cycle == 0) {
- sprdata[num][3] = data642;
- sprdata[num][2] = data641;
- sprdata[num][1] = data32;
- } else {
- sprdatb[num][3] = data642;
- sprdatb[num][2] = data641;
- sprdatb[num][1] = data32;
- }
- }
- }
- break;
- case 32:
- {
- uae_u16 data32 = sprite_fetch2 (s, dma, hpos, cycle, 1);
- if (dma) {
- if (cycle == 0)
- sprdata[num][1] = data32;
- else
- sprdatb[num][1] = data32;
- }
- }
- break;
- }
-#endif
- }
-}
-
-static void do_sprites (int hpos)
-{
- int maxspr, minspr;
- int i;
-
- if (vpos < sprite_vblank_endline)
- return;
- if (doflickerfix () && interlace_seen && (next_lineno & 1))
- return;
-
-#ifndef CUSTOM_SIMPLE
- maxspr = hpos;
- minspr = last_sprite_hpos + 1;
-
- if (minspr >= SPR0_HPOS + MAX_SPRITES * 4 || maxspr < SPR0_HPOS)
- return;
-
- if (maxspr > SPR0_HPOS + MAX_SPRITES * 4)
- maxspr = SPR0_HPOS + MAX_SPRITES * 4;
- if (minspr < SPR0_HPOS)
- minspr = SPR0_HPOS;
-
- for (i = minspr; i <= maxspr; i++) {
- int cycle = -1;
- int num = (i - SPR0_HPOS) / 4;
- switch ((i - SPR0_HPOS) & 3)
- {
- case 0:
- cycle = 0;
- spr[num].dmacycle = 0;
- break;
- case 2:
- cycle = 1;
- break;
- }
- if (cycle >= 0 && num >= 0 && num < MAX_SPRITES) {
- spr[num].ptxhpos = MAXHPOS;
- do_sprites_1 (num, cycle, i);
- }
- }
-
- last_sprite_hpos = hpos;
-#else
- for (i = 0; i < MAX_SPRITES * 2; i++) {
- spr[i / 2].dmacycle = 1;
- do_sprites_1 (i / 2, i & 1, 0);
- }
-#endif
-}
-
-static void init_sprites (void)
-{
- memset (sprpos, 0, sizeof sprpos);
- memset (sprctl, 0, sizeof sprctl);
-}
-
-/*
-* On systems without virtual memory or with low memory, we allocate the
-* sprite_entries and color_changes tables dynamically rather than having
-* them declared static. We don't initially allocate at their maximum sizes;
-* we start the tables off small and grow them as required.
-*
-* This function expands the tables if necessary.
-*/
-static void adjust_array_sizes (void)
-{
-#ifdef OS_WITHOUT_MEMORY_MANAGEMENT
- if (delta_sprite_entry) {
- void *p1;
- void *p2;
- int mcc = max_sprite_entry + 50 + delta_sprite_entry;
-
- delta_sprite_entry = 0;
-
- p1 = realloc (sprite_entries[0], mcc * sizeof (struct sprite_entry));
- p2 = realloc (sprite_entries[1], mcc * sizeof (struct sprite_entry));
-
- if (p1 && p2) {
- sprite_entries[0] = p1;
- sprite_entries[1] = p2;
-
- memset (&sprite_entries[0][max_sprite_entry], (mcc - max_sprite_entry) * sizeof(struct sprite_entry), 0);
- memset (&sprite_entries[1][max_sprite_entry], (mcc - max_sprite_entry) * sizeof(struct sprite_entry), 0);
-
- write_log (L"New max_sprite_entry=%d\n", mcc);
-
- max_sprite_entry = mcc;
- } else
- write_log (L"WARNING: Failed to enlarge sprite_entries table\n");
- }
- if (delta_color_change) {
- void *p1;
- void *p2;
- int mcc = max_color_change + 200 + delta_color_change;
-
- delta_color_change = 0;
-
- p1 = realloc (color_changes[0], mcc * sizeof (struct color_change));
- p2 = realloc (color_changes[1], mcc * sizeof (struct color_change));
-
- if (p1 && p2) {
- color_changes[0] = p1;
- color_changes[1] = p2;
-
- write_log (L"New max_color_change=%d\n", mcc);
-
- max_color_change = mcc;
- } else
- write_log (L"WARNING: Failed to enlarge color_changes table\n");
- }
-#endif
-}
-
-static void init_hardware_frame (void)
-{
- first_bpl_vpos = -1;
- next_lineno = 0;
- prev_lineno = -1;
- nextline_how = nln_normal;
- diwstate = DIW_waiting_start;
- hdiwstate = DIW_waiting_start;
- ddfstate = DIW_waiting_start;
- first_planes_vpos = 0;
- last_planes_vpos = 0;
- diwfirstword_total = max_diwlastword;
- diwlastword_total = 0;
- ddffirstword_total = max_diwlastword;
- ddflastword_total = 0;
- plflastline_total = 0;
- plffirstline_total = maxvpos;
-}
-
-void init_hardware_for_drawing_frame (void)
-{
- /* Avoid this code in the first frame after a customreset. */
- if (prev_sprite_entries) {
- int first_pixel = prev_sprite_entries[0].first_pixel;
- int npixels = prev_sprite_entries[prev_next_sprite_entry].first_pixel - first_pixel;
- memset (spixels + first_pixel, 0, npixels * sizeof *spixels);
- memset (spixstate.bytes + first_pixel, 0, npixels * sizeof *spixstate.bytes);
- }
- prev_next_sprite_entry = next_sprite_entry;
-
- next_color_change = 0;
- next_sprite_entry = 0;
- next_color_entry = 0;
- remembered_color_entry = -1;
-
- adjust_array_sizes ();
-
- prev_sprite_entries = sprite_entries[current_change_set];
- curr_sprite_entries = sprite_entries[current_change_set ^ 1];
- prev_color_changes = color_changes[current_change_set];
- curr_color_changes = color_changes[current_change_set ^ 1];
- prev_color_tables = color_tables[current_change_set];
- curr_color_tables = color_tables[current_change_set ^ 1];
-
- prev_drawinfo = line_drawinfo[current_change_set];
- curr_drawinfo = line_drawinfo[current_change_set ^ 1];
- current_change_set ^= 1;
-
- color_src_match = color_dest_match = -1;
-
- /* Use both halves of the array in alternating fashion. */
- curr_sprite_entries[0].first_pixel = current_change_set * MAX_SPR_PIXELS;
- next_sprite_forced = 1;
-}
-
-static void do_savestate(void);
-
-static int rpt_vsync (void)
-{
- int v = read_processor_time () - vsyncmintime;
- if (v > (int)syncbase || v < -((int)syncbase)) {
- vsyncmintime = read_processor_time ();
- v = 0;
- }
- return v;
-}
-
-static void framewait (void)
-{
- frame_time_t curr_time;
- frame_time_t start;
-
- if (isvsync ()) {
- vsyncmintime = vsynctime;
- return;
- }
- for (;;) {
- double v = rpt_vsync () / (syncbase / 1000.0);
- if (v >= -4)
- break;
- sleep_millis (2);
- }
- curr_time = start = read_processor_time ();
- while (rpt_vsync () < 0);
- curr_time = read_processor_time ();
- vsyncmintime = curr_time + vsynctime;
- idletime += read_processor_time() - start;
-}
-
-static frame_time_t frametime2;
-
-void fpscounter_reset (void)
-{
- timeframes = 0;
- frametime2 = 0;
- bogusframe = 2;
- lastframetime = read_processor_time ();
- idletime = 0;
-}
-
-static void fpscounter (void)
-{
- frame_time_t now, last;
- int mcnt = 10;
-
- now = read_processor_time ();
- last = now - lastframetime;
- lastframetime = now;
-
- if (bogusframe)
- return;
-
- frametime += last;
- frametime2 += last;
- timeframes++;
- if ((timeframes % mcnt) == 0) {
- double idle = 1000 - (idletime == 0 ? 0.0 : (double)idletime * 1000.0 / (vsynctime * mcnt));
- int fps = frametime2 == 0 ? 0 : (syncbase * mcnt) / (frametime2 / 10);
- if (fps > 9999)
- fps = 9999;
- if (idle < 0)
- idle = 0;
- if (idle > 100 * 10)
- idle = 100 * 10;
- if (fake_vblank_hz * 10 > fps) {
- double mult = (double)fake_vblank_hz * 10.0 / fps;
- idle *= mult;
- }
- if (currprefs.turbo_emulation && idle < 100 * 10)
- idle = 100 * 10;
- gui_fps (fps, (int)idle);
- frametime2 = 0;
- idletime = 0;
- }
-}
-
-static void vsync_handler (void)
-{
- fpscounter ();
-
- if (!isvsync ()
-#ifdef AVIOUTPUT
- && ((avioutput_framelimiter && avioutput_enabled) || !avioutput_enabled)
-#endif
- ) {
-#ifdef JIT
- if (!compiled_code) {
-#endif
- if (currprefs.m68k_speed == -1) {
- frame_time_t curr_time = read_processor_time ();
- vsyncmintime += vsynctime;
- /* @@@ Mathias? How do you think we should do this? */
- /* If we are too far behind, or we just did a reset, adjust the
- * needed time. */
- if ((long int)(curr_time - vsyncmintime) > 0 || rpt_did_reset)
- vsyncmintime = curr_time + vsynctime;
- rpt_did_reset = 0;
- } else if (rpt_available) {
- framewait ();
- }
-#ifdef JIT
- } else {
- if (rpt_available && currprefs.m68k_speed == 0) {
- framewait ();
- }
- }
-#endif
- } else {
- framewait ();
- }
-
- if (bogusframe > 0)
- bogusframe--;
-
- handle_events ();
-
- INTREQ (0x8000 | 0x0020);
- if (bplcon0 & 4)
- lof ^= 1;
-
-#ifdef PICASSO96
- picasso_handle_vsync ();
-#endif
- audio_vsync ();
-
- if (quit_program > 0) {
- /* prevent possible infinite loop at wait_cycles().. */
- framecnt = 0;
- reset_decisions ();
- return;
- }
-
- {
- static int cnt = 0;
- if (cnt == 0) {
- /* resolution_check_change (); */
- DISK_check_change ();
- cnt = 5;
- }
- cnt--;
- }
-
- if (debug_copper)
- record_copper_reset ();
- if (debug_dma)
- record_dma_reset ();
-
- vsync_handle_redraw (lof, lof_changed);
-
- /* For now, let's only allow this to change at vsync time. It gets too
- * hairy otherwise. */
- if (hack_vpos2) {
- hack_vpos = hack_vpos2vpos + 1;
- if (hack_vpos2 < maxvpos)
- hack_vpos += maxvpos - hack_vpos2;
- if (hack_vpos > maxvpos)
- hack_vpos = maxvpos;
- if (hack_vpos < 10)
- hack_vpos = 10;
- hack_vpos2 = 0;
- }
- if ((beamcon0 & (0x20|0x80)) != (new_beamcon0 & (0x20|0x80)) || hack_vpos)
- init_hz ();
-
- lof_changed = 0;
-
- COPJMP (1, 1);
-
- if (timehack_alive > 0)
- timehack_alive--;
- inputdevice_vsync ();
- filesys_vsync ();
-
- init_hardware_frame ();
-
-}
-
-#ifdef JIT
-
-#define N_LINES 8
-
-STATIC_INLINE int trigger_frh (int v)
-{
- return (v & (N_LINES - 1)) == 0;
-}
-
-static long int diff32 (frame_time_t x, frame_time_t y)
-{
- return (long int)(x - y);
-}
-static void frh_handler (void)
-{
- if (currprefs.m68k_speed == -1) {
- frame_time_t curr_time = read_processor_time ();
- vsyncmintime += vsynctime * N_LINES / maxvpos;
- /* @@@ Mathias? How do you think we should do this? */
- /* If we are too far behind, or we just did a reset, adjust the
- * needed time. */
- if (rpt_did_reset) {
- vsyncmintime = curr_time + vsynctime;
- rpt_did_reset = 0;
- }
- /* Allow this to be one frame's worth of cycles out */
- while (diff32 (curr_time, vsyncmintime + vsynctime) > 0) {
- vsyncmintime += vsynctime * N_LINES / maxvpos;
- if (currprefs.turbo_emulation)
- break;
- }
- }
-}
-#endif
-
-static void copper_check (int n)
-{
- if (cop_state.state == COP_wait) {
- int vp = vpos & (((cop_state.saved_i2 >> 8) & 0x7F) | 0x80);
- if (vp < cop_state.vcmp) {
- if (copper_enabled_thisline)
- write_log (L"COPPER BUG %d: vp=%d vpos=%d vcmp=%d act=%d thisline=%d\n", n, vp, vpos, cop_state.vcmp, copper_enabled_thisline);
- }
- }
-}
-
-static void CIA_vsync_prehandler (int dotod)
-{
- CIA_vsync_handler (dotod);
-#if 0
- if (input_recording > 0) {
- inprec_rstart(INPREC_CIAVSYNC);
- inprec_ru32(ciavsync_counter);
- inprec_rend();
- } else if (input_recording < 0) {
- uae_u32 v = -1;
- while (inprec_pstart(INPREC_CIAVSYNC)) {
- v = inprec_pu32();
- inprec_pend();
- }
- if (v != ciavsync_counter)
- write_log (L"INPREC: ciavsync sync error %d <> %d\n", v, ciavsync_counter);
- }
-#endif
- ciavsync_counter++;
-}
-
-/*
-
-0 0 -
-1 1 --
-2 2 -
-3 3 --
-4 4 -
-5 5 --
-
-0 x -
-1 0 --
-2 1 -
-3 2 --
-4 3 -
-5 4 --
-
-*/
-
-static void hsync_scandoubler (void)
-{
- int i, idx1;
- struct draw_info *dip1;
- uaecptr bpltmp[8], bpltmpx[8];
-
- next_lineno++;
- scandoubled_line = 1;
- debug_dma = 0;
-
- for (i = 0; i < 8; i++) {
- int diff;
- bpltmp[i] = bplpt[i];
- bpltmpx[i] = bplptx[i];
- if (prevbpl[lof][vpos][i] && prevbpl[1 - lof][vpos][i]) {
- diff = prevbpl[lof][vpos][i] - prevbpl[1 - lof][vpos][i];
- if (lof) {
- if (bplcon0 & 4)
- bplpt[i] = prevbpl[lof][vpos][i] - diff;
- } else {
- if (bplcon0 & 4)
- bplpt[i] = prevbpl[lof][vpos][i];
- else
- bplpt[i] = bplpt[i] - diff;
-
- }
- }
- }
-
- reset_decisions ();
- plf_state = plf_idle;
-
- // copy color changes
- dip1 = curr_drawinfo + next_lineno - 1;
- for (idx1 = dip1->first_color_change; idx1 < dip1->last_color_change; idx1++) {
- struct color_change *cs2 = &curr_color_changes[idx1];
- int regno = cs2->regno;
- int hpos = cs2->linepos;
- if (regno < 0x1000 && hpos < HBLANK_OFFSET && !(beamcon0 & 0x80) && prev_lineno >= 0) {
- struct draw_info *pdip = curr_drawinfo + next_lineno - 1;
- int idx = pdip->last_color_change;
- pdip->last_color_change++;
- pdip->nr_color_changes++;
- curr_color_changes[idx].linepos = hpos + maxhpos + 1;
- curr_color_changes[idx].regno = regno;
- curr_color_changes[idx].value = cs2->value;
- curr_color_changes[idx + 1].regno = -1;
- } else {
- struct color_change *cs1 = &curr_color_changes[next_color_change];
- memcpy (cs1, cs2, sizeof (struct color_change));
- next_color_change++;
- }
- }
- curr_color_changes[next_color_change].regno = -1;
-
- finish_decisions ();
- hsync_record_line_state (next_lineno, nln_normal, thisline_changed);
- hardware_line_completed (next_lineno);
- scandoubled_line = 0;
-
- for (i = 0; i < 8; i++) {
- bplpt[i] = bpltmp[i];
- bplptx[i] = bpltmpx[i];
- }
-}
-
-static void hsync_handler (void)
-{
- int hpos = current_hpos ();
-
- if (!nocustom ()) {
- sync_copper_with_cpu (maxhpos, 0);
- last_copper_hpos = 0;
- finish_decisions ();
- if (thisline_decision.plfleft != -1) {
- if (currprefs.collision_level > 1)
- do_sprite_collisions ();
- if (currprefs.collision_level > 2)
- do_playfield_collisions ();
- }
- hsync_record_line_state (next_lineno, nextline_how, thisline_changed);
- /* reset light pen latch */
- if (vpos == sprite_vblank_endline) {
- lightpen_triggered = 0;
- sprite_0 = 0;
- }
- if (lightpen_cx > 0 && (bplcon0 & 8) && !lightpen_triggered && lightpen_cy == vpos) {
- vpos_lpen = vpos;
- hpos_lpen = lightpen_cx;
- lightpen_triggered = 1;
- }
- }
-#ifdef A2065
- a2065_hsync_handler ();
-#endif
-#ifdef CD32
- AKIKO_hsync_handler ();
-#endif
-#ifdef CDTV
- CDTV_hsync_handler ();
-#endif
-#ifdef CPUEMU_12
- if (currprefs.cpu_cycle_exact || currprefs.blitter_cycle_exact) {
- decide_blitter (-1);
- memset (cycle_line, 0, sizeof cycle_line);
- }
-#endif
-
- if (islinetoggle ())
- lol ^= 1;
-
- maxhpos = maxhpos_short + lol;
- eventtab[ev_hsync].evtime = get_cycles () + HSYNCTIME;
- eventtab[ev_hsync].oldcycles = get_cycles ();
-
- CIA_hsync_handler (!(bplcon0 & 2) || ((bplcon0 & 2) && currprefs.genlock));
- if (currprefs.cs_ciaatod > 0) {
- static int cia_hsync;
- cia_hsync -= 256;
- if (cia_hsync <= 0) {
- CIA_vsync_prehandler (1);
- cia_hsync += ((MAXVPOS_PAL * MAXHPOS_PAL * 50 * 256) / (maxhpos * (currprefs.cs_ciaatod == 2 ? 60 : 50)));
- }
- }
-
-
-#ifdef PICASSO96
- picasso_handle_hsync ();
-#endif
- {
- void ahi_hsync (void);
- ahi_hsync ();
- }
-
- last_custom_value1 = 0xffff; // refresh slots should set this to 0xffff
-
- if (!nocustom()) {
- if (!currprefs.blitter_cycle_exact && bltstate != BLT_done && dmaen (DMA_BITPLANE) && diwstate == DIW_waiting_stop) {
- blitter_slowdown (thisline_decision.plfleft, thisline_decision.plfright - (16 << fetchmode),
- cycle_diagram_total_cycles[fetchmode][GET_RES_AGNUS (bplcon0)][GET_PLANES_LIMIT (bplcon0)],
- cycle_diagram_free_cycles[fetchmode][GET_RES_AGNUS (bplcon0)][GET_PLANES_LIMIT (bplcon0)]);
- }
- hardware_line_completed (next_lineno);
- if (doflickerfix () && interlace_seen)
- hsync_scandoubler ();
- }
-
- /* In theory only an equality test is needed here - but if a program
- goes haywire with the VPOSW register, it can cause us to miss this,
- with vpos going into the thousands (and all the nasty consequences
- this has). */
- if (++vpos >= maxvpos + lof) {
- if ((bplcon0 & 8) && !lightpen_triggered) {
- vpos_lpen = vpos - 1;
- hpos_lpen = maxhpos;
- lightpen_triggered = 1;
- }
- vpos = 0;
- vsync_handler ();
-#if 0
- if (input_recording > 0) {
- inprec_rstart (INPREC_VSYNC);
- inprec_ru32 (vsync_counter);
- inprec_rend ();
- } else if (input_recording < 0) {
- uae_u32 v = -1;
- while (inprec_pstart(INPREC_VSYNC)) {
- v = inprec_pu32();
- inprec_pend();
- }
- if (v != vsync_counter)
- write_log (L"INPREC: vsync sync error %d <> %d\n", v, vsync_counter);
- }
-#endif
- vsync_counter++;
- if (currprefs.cs_ciaatod == 0)
- CIA_vsync_prehandler (!(bplcon0 & 2) || ((bplcon0 & 2) && currprefs.genlock));
- }
-
-#ifdef CPUEMU_12
- if (currprefs.cpu_cycle_exact || currprefs.blitter_cycle_exact) {
- int hp = maxhpos - 1, i;
- for (i = 0; i < 4; i++) {
- alloc_cycle (hp, i == 0 ? CYCLE_STROBE : CYCLE_REFRESH); /* strobe */
-#ifdef DEBUGGER
- if (debug_dma)
- record_dma (i == 0 ? (vpos + 1 == maxvpos + lof ? 0x38 : 0x3c) : 0x1fe, 0xffff, 0xffffffff, hp, vpos, DMARECORD_REFRESH);
-#endif
- hp += 2;
- if (hp >= maxhpos)
- hp -= maxhpos;
- }
- }
-#endif
-
-
- DISK_hsync (maxhpos);
- if (currprefs.produce_sound)
- audio_hsync (-1);
-
-#ifdef JIT
- if (compiled_code) {
- if (currprefs.m68k_speed == -1) {
- static int count = 0;
- count++;
- if (trigger_frh (count)) {
- frh_handler ();
- }
- is_lastline = trigger_frh (count + 1) && ! rpt_did_reset;
- } else {
- is_lastline = 0;
- }
- } else {
-#endif
- is_lastline = vpos + 1 == maxvpos + lof && currprefs.m68k_speed == -1;
-#ifdef JIT
- }
-#endif
-
- if (!nocustom ()) {
- int lineno = vpos;
- if ((bplcon0 & 4) && currprefs.gfx_linedbl)
- notice_interlace_seen ();
- nextline_how = nln_normal;
- if (doflickerfix () && interlace_seen) {
- lineno *= 2;
- } else if (currprefs.gfx_linedbl && (doublescan <= 0 || interlace_seen > 0)) {
- lineno *= 2;
- nextline_how = currprefs.gfx_linedbl == 1 ? nln_doubled : nln_nblack;
- if ((bplcon0 & 4) || (interlace_seen > 0 && !lof)) {
- if (!lof) {
- lineno++;
- nextline_how = nln_lower;
- } else {
- nextline_how = nln_upper;
- }
- }
- }
- prev_lineno = next_lineno;
- next_lineno = lineno;
- reset_decisions ();
- }
-
- if (uae_int_requested) {
- INTREQ (0x8000 | 0x0008);
- }
-
- {
- extern int volatile uaenet_int_requested;
- extern int volatile uaenet_vsync_requested;
- if (uaenet_int_requested || (uaenet_vsync_requested && vpos == 10)) {
- INTREQ (0x8000 | 0x2000);
- }
- }
-
- {
- extern void bsdsock_fake_int_handler (void);
- extern int volatile bsd_int_requested;
- if (bsd_int_requested)
- bsdsock_fake_int_handler ();
- }
-
- /* See if there's a chance of a copper wait ending this line. */
- cop_state.hpos = 0;
- cop_state.last_write = 0;
- compute_spcflag_copper (maxhpos);
- serial_hsynchandler ();
-#ifdef CUSTOM_SIMPLE
- do_sprites (0);
-#endif
-
- while (input_recording < 0 && inprec_pstart (INPREC_KEY)) {
- record_key_direct (inprec_pu8 ());
- inprec_pend ();
- }
- while (input_recording < 0 && inprec_pstart (INPREC_DISKREMOVE)) {
- disk_eject (inprec_pu8 ());
- inprec_pend ();
- }
- while (input_recording < 0 && inprec_pstart (INPREC_DISKINSERT)) {
- int drv = inprec_pu8 ();
- inprec_pstr (currprefs.df[drv]);
- _tcscpy (changed_prefs.df[drv], currprefs.df[drv]);
- disk_insert_force (drv, currprefs.df[drv]);
- inprec_pend ();
- }
-
- inputdevice_hsync ();
- gayle_hsync ();
- scsi_hsync ();
-
- hsync_counter++;
- //copper_check (2);
-
- if (GET_PLANES (bplcon0) > 0 && dmaen (DMA_BITPLANE)) {
- if (vpos > last_planes_vpos)
- last_planes_vpos = vpos;
- if (vpos >= minfirstline && first_planes_vpos == 0) {
- first_planes_vpos = vpos;
- } else if (vpos == maxvpos - 1) {
- last_planes_vpos = vpos - 1;
- }
- }
- if (diw_change == 0) {
- if (vpos >= first_planes_vpos && vpos <= last_planes_vpos) {
- if (diwlastword > diwlastword_total)
- diwlastword_total = diwlastword;
- if (diwfirstword < diwfirstword_total) {
- diwfirstword_total = diwfirstword;
- firstword_bplcon1 = bplcon1;
- }
- }
- if (diwstate == DIW_waiting_stop) {
- int f = 8 << fetchmode;
- if (plfstrt + f < ddffirstword_total + f)
- ddffirstword_total = plfstrt + f;
- if (plfstop + 2 * f > ddflastword_total + 2 * f)
- ddflastword_total = plfstop + 2 * f;
- }
- if ((plffirstline < plffirstline_total || (plffirstline_total == minfirstline && vpos > minfirstline)) && plffirstline < vpos / 2) {
- firstword_bplcon1 = bplcon1;
- if (plffirstline < minfirstline)
- plffirstline_total = minfirstline;
- else
- plffirstline_total = plffirstline;
- }
- if (plflastline > plflastline_total && plflastline > plffirstline_total && plflastline > maxvpos / 2)
- plflastline_total = plflastline;
- }
- if (diw_change > 0)
- diw_change--;
-
-
-#if 0
- {
- static int skip;
- if (M68K_GETPC >= 0x0C0D7A2 && M68K_GETPC < 0x00C0D7B2 && vpos == 0xf3) {
- if (!skip)
- activate_debugger ();
- skip = 1;
- }
- if (vpos != 0xf3)
- skip = 0;
- }
-#endif
-}
-
-static void MISC_handler (void)
-{
- int i, recheck;
- evt mintime;
- evt ct = get_cycles ();
- static int recursive;
-
- if (recursive)
- return;
- recursive++;
- eventtab[ev_misc].active = 0;
- recheck = 1;
- while (recheck) {
- recheck = 0;
- mintime = ~0L;
- for (i = 0; i < ev2_max; i++) {
- if (eventtab2[i].active) {
- if (eventtab2[i].evtime == ct) {
- eventtab2[i].active = 0;
- eventtab2[i].handler (eventtab2[i].data);
- if (eventtab2[i].active)
- recheck = 1;
- } else {
- evt eventtime = eventtab2[i].evtime - ct;
- if (eventtime < mintime)
- mintime = eventtime;
- }
- }
- }
- }
- if (mintime != ~0L) {
- eventtab[ev_misc].active = 1;
- eventtab[ev_misc].oldcycles = ct;
- eventtab[ev_misc].evtime = ct + mintime;
- events_schedule ();
- }
- recursive--;
-}
-
-STATIC_INLINE void event2_newevent_x (int no, evt t, uae_u32 data, evfunc2 func)
-{
- evt et;
-
- if (((int)t) <= 0) {
- func (data);
- return;
- }
-
- et = t * CYCLE_UNIT + get_cycles ();
-
- if (no < 0) {
- for (no = ev2_misc; no < ev2_max; no++) {
- if (!eventtab2[no].active)
- break;
- if (eventtab2[no].evtime == et && eventtab2[no].handler == func) {
- eventtab2[no].handler (eventtab2[no].data);
- break;
- }
- }
- if (no == ev2_max) {
- write_log (L"out of event2's! PC=%x\n", M68K_GETPC);
- return;
- }
- }
- eventtab2[no].active = 1;
- eventtab2[no].evtime = et;
- eventtab2[no].handler = func;
- eventtab2[no].data = data;
- MISC_handler ();
-}
-void event2_newevent (int no, evt t)
-{
- event2_newevent_x (no, t, 0, eventtab2[no].handler);
-}
-void event2_newevent2 (evt t, uae_u32 data, evfunc2 func)
-{
- event2_newevent_x (-1, t, data, func);
-}
-
-void event2_remevent (int no)
-{
- eventtab2[no].active = 0;
-}
-
-void init_eventtab (void)
-{
- int i;
-
- nextevent = 0;
- set_cycles (0);
- for (i = 0; i < ev_max; i++) {
- eventtab[i].active = 0;
- eventtab[i].oldcycles = 0;
- }
- for (i = 0; i < ev2_max; i++) {
- eventtab2[i].active = 0;
- }
-
- eventtab[ev_cia].handler = CIA_handler;
- eventtab[ev_hsync].handler = hsync_handler;
- eventtab[ev_hsync].evtime = get_cycles () + HSYNCTIME;
- eventtab[ev_hsync].active = 1;
- eventtab[ev_misc].handler = MISC_handler;
- eventtab[ev_audio].handler = audio_evhandler;
-
- eventtab2[ev2_blitter].handler = blitter_handler;
- eventtab2[ev2_disk].handler = DISK_handler;
-
- events_schedule ();
-}
-
-void customreset (int hardreset)
-{
- int i;
- int zero = 0;
-
- target_reset ();
- reset_all_systems ();
- write_log (L"Reset at %08X\n", M68K_GETPC);
- memory_map_dump ();
-
- hsync_counter = 0;
- vsync_counter = 0;
- ciavsync_counter = 0;
- lightpen_x = lightpen_y = -1;
- lightpen_triggered = 0;
- lightpen_cx = lightpen_cy = -1;
- if (! savestate_state) {
- currprefs.chipset_mask = changed_prefs.chipset_mask;
- update_mirrors ();
- if (!aga_mode) {
- for (i = 0; i < 32; i++) {
- current_colors.color_regs_ecs[i] = 0;
- current_colors.acolors[i] = getxcolor (0);
- }
-#ifdef AGA
- } else {
- for (i = 0; i < 256; i++) {
- current_colors.color_regs_aga[i] = 0;
- current_colors.acolors[i] = getxcolor (0);
- }
-#endif
- }
-
- clxdat = 0;
-
- /* Clear the armed flags of all sprites. */
- memset (spr, 0, sizeof spr);
- nr_armed = 0;
-
- dmacon = intena = 0;
-
- copcon = 0;
- DSKLEN (0, 0);
-
- bplcon0 = 0;
- bplcon4 = 0x0011; /* Get AGA chipset into ECS compatibility mode */
- bplcon3 = 0x0C00;
-
- diwhigh = 0;
- diwhigh_written = 0;
-
- FMODE (0, 0);
- CLXCON (0);
- setup_fmodes (0);
- sprite_width = GET_SPRITEWIDTH (fmode);
- new_beamcon0 = currprefs.ntscmode ? 0x00 : 0x20;
- }
-
- gayle_reset (hardreset);
-#ifdef AUTOCONFIG
- expamem_reset ();
-#endif
- a1000_reset ();
- DISK_reset ();
- CIA_reset ();
- gayle_reset (0);
-#ifdef A2091
- a2091_reset ();
-#endif
-#ifdef NCR
- ncr_reset ();
-#endif
-#ifdef JIT
- compemu_reset ();
-#endif
- unset_special (~(SPCFLAG_BRK | SPCFLAG_MODE_CHANGE));
-
- vpos = 0;
-
- inputdevice_reset ();
- timehack_alive = 0;
-
- curr_sprite_entries = 0;
- prev_sprite_entries = 0;
- sprite_entries[0][0].first_pixel = 0;
- sprite_entries[1][0].first_pixel = MAX_SPR_PIXELS;
- sprite_entries[0][1].first_pixel = 0;
- sprite_entries[1][1].first_pixel = MAX_SPR_PIXELS;
- memset (spixels, 0, 2 * MAX_SPR_PIXELS * sizeof *spixels);
- memset (&spixstate, 0, sizeof spixstate);
-
- bltstate = BLT_done;
- cop_state.state = COP_stop;
- diwstate = DIW_waiting_start;
- hdiwstate = DIW_waiting_start;
- set_cycles (0);
-
- hack_vpos = 0;
- init_hz ();
- vpos_lpen = -1;
-
- audio_reset ();
- if (savestate_state != STATE_RESTORE) {
- /* must be called after audio_reset */
- adkcon = 0;
- serial_uartbreak (0);
- audio_update_adkmasks ();
- }
-
- init_sprites ();
-
- init_hardware_frame ();
- drawing_init ();
-
- reset_decisions ();
-
- bogusframe = 1;
-
- if (savestate_state == STATE_RESTORE) {
- uae_u16 v;
- uae_u32 vv;
-
- audio_update_adkmasks ();
- INTENA (0);
- INTREQ (0);
- COPJMP (1, 1);
- v = bplcon0;
- BPLCON0 (0, 0);
- BPLCON0 (0, v);
- FMODE (0, fmode);
- if (!(currprefs.chipset_mask & CSMASK_AGA)) {
- for(i = 0 ; i < 32 ; i++) {
- vv = current_colors.color_regs_ecs[i];
- current_colors.color_regs_ecs[i] = -1;
- record_color_change (0, i, vv);
- remembered_color_entry = -1;
- current_colors.color_regs_ecs[i] = vv;
- current_colors.acolors[i] = xcolors[vv];
- }
-#ifdef AGA
- } else {
- for(i = 0 ; i < 256 ; i++) {
- vv = current_colors.color_regs_aga[i];
- current_colors.color_regs_aga[i] = -1;
- record_color_change (0, i, vv);
- remembered_color_entry = -1;
- current_colors.color_regs_aga[i] = vv;
- current_colors.acolors[i] = CONVERT_RGB (vv);
- }
-#endif
- }
- CLXCON (clxcon);
- CLXCON2 (clxcon2);
- calcdiw ();
- write_log (L"State restored\n");
- for (i = 0; i < 8; i++)
- nr_armed += spr[i].armed != 0;
- if (! currprefs.produce_sound) {
- eventtab[ev_audio].active = 0;
- events_schedule ();
- }
- }
- sprres = expand_sprres (bplcon0, bplcon3);
- sprite_width = GET_SPRITEWIDTH (fmode);
- setup_fmodes (0);
-
-#ifdef ACTION_REPLAY
- /* Doing this here ensures we can use the 'reset' command from within AR */
- action_replay_reset ();
-#endif
-#if defined(ENFORCER)
- enforcer_disable ();
-#endif
-
- if (hardreset)
- rtc_hardreset();
-
- picasso_reset ();
-}
-
-void dumpcustom (void)
-{
- console_out_f (L"DMACON: %x INTENA: %x INTREQ: %x VPOS: %x HPOS: %x\n", DMACONR (current_hpos ()),
- (unsigned int)intena, (unsigned int)intreq, (unsigned int)vpos, (unsigned int)current_hpos());
- console_out_f (L"COP1LC: %08lx, COP2LC: %08lx COPPTR: %08lx\n", (unsigned long)cop1lc, (unsigned long)cop2lc, cop_state.ip);
- console_out_f (L"DIWSTRT: %04x DIWSTOP: %04x DDFSTRT: %04x DDFSTOP: %04x\n",
- (unsigned int)diwstrt, (unsigned int)diwstop, (unsigned int)ddfstrt, (unsigned int)ddfstop);
- console_out_f (L"BPLCON 0: %04x 1: %04x 2: %04x 3: %04x 4: %04x\n", bplcon0, bplcon1, bplcon2, bplcon3, bplcon4);
- if (timeframes) {
- console_out_f (L"Average frame time: %.2f ms [frames: %d time: %d]\n",
- (double)frametime / timeframes, timeframes, frametime);
- if (total_skipped)
- console_out_f (L"Skipped frames: %d\n", total_skipped);
- }
-}
-
-static void gen_custom_tables (void)
-{
- int i;
- for (i = 0; i < 256; i++) {
- sprtaba[i] = ((((i >> 7) & 1) << 0)
- | (((i >> 6) & 1) << 2)
- | (((i >> 5) & 1) << 4)
- | (((i >> 4) & 1) << 6)
- | (((i >> 3) & 1) << 8)
- | (((i >> 2) & 1) << 10)
- | (((i >> 1) & 1) << 12)
- | (((i >> 0) & 1) << 14));
- sprtabb[i] = sprtaba[i] * 2;
- sprite_ab_merge[i] = (((i & 15) ? 1 : 0)
- | ((i & 240) ? 2 : 0));
- }
- for (i = 0; i < 16; i++) {
- clxmask[i] = (((i & 1) ? 0xF : 0x3)
- | ((i & 2) ? 0xF0 : 0x30)
- | ((i & 4) ? 0xF00 : 0x300)
- | ((i & 8) ? 0xF000 : 0x3000));
- sprclx[i] = (((i & 0x3) == 0x3 ? 1 : 0)
- | ((i & 0x5) == 0x5 ? 2 : 0)
- | ((i & 0x9) == 0x9 ? 4 : 0)
- | ((i & 0x6) == 0x6 ? 8 : 0)
- | ((i & 0xA) == 0xA ? 16 : 0)
- | ((i & 0xC) == 0xC ? 32 : 0)) << 9;
- }
-}
-
-/* mousehack is now in "filesys boot rom" */
-static uae_u32 REGPARAM2 mousehack_helper_old (struct TrapContext *ctx)
-{
- return 0;
-}
-
-static int allocate_sprite_tables (void)
-{
-#ifdef OS_WITHOUT_MEMORY_MANAGEMENT
- int num;
-
- delta_sprite_entry = 0;
- delta_color_change = 0;
-
- if (!sprite_entries[0]) {
- max_sprite_entry = DEFAULT_MAX_SPRITE_ENTRY;
- max_color_change = DEFAULT_MAX_COLOR_CHANGE;
-
- for (num = 0; num < 2; num++) {
- sprite_entries[num] = xmalloc (max_sprite_entry * sizeof (struct sprite_entry));
- color_changes[num] = xmalloc (max_color_change * sizeof (struct color_change));
-
- if (sprite_entries[num] && color_changes[num]) {
- memset (sprite_entries[num], 0, max_sprite_entry * sizeof (struct sprite_entry));
- memset (color_changes[num], 0, max_color_change * sizeof (struct color_change));
- } else
- return 0;
- }
- }
-
- if (!spixels) {
- spixels = xmalloc (2 * MAX_SPR_PIXELS * sizeof *spixels);
- if (!spixels)
- return 0;
- }
-#endif
- return 1;
-}
-
-int custom_init (void)
-{
-
- if (!allocate_sprite_tables ())
- return 0;
-
-#ifdef AUTOCONFIG
- if (uae_boot_rom) {
- uaecptr pos;
- pos = here ();
-
- org (rtarea_base + 0xFF70);
- calltrap (deftrap (mousehack_helper_old));
- dw (RTS);
-
- org (rtarea_base + 0xFFA0);
- calltrap (deftrap (timehack_helper));
- dw (RTS);
-
- org (pos);
- }
-#endif
-
- gen_custom_tables ();
- build_blitfilltable ();
-
- drawing_init ();
-
- create_cycle_diagram_table ();
-
- return 1;
-}
-
-/* Custom chip memory bank */
-
-static uae_u32 REGPARAM3 custom_lget (uaecptr) REGPARAM;
-static uae_u32 REGPARAM3 custom_wget (uaecptr) REGPARAM;
-static uae_u32 REGPARAM3 custom_bget (uaecptr) REGPARAM;
-static uae_u32 REGPARAM3 custom_lgeti (uaecptr) REGPARAM;
-static uae_u32 REGPARAM3 custom_wgeti (uaecptr) REGPARAM;
-static void REGPARAM3 custom_lput (uaecptr, uae_u32) REGPARAM;
-static void REGPARAM3 custom_wput (uaecptr, uae_u32) REGPARAM;
-static void REGPARAM3 custom_bput (uaecptr, uae_u32) REGPARAM;
-
-addrbank custom_bank = {
- custom_lget, custom_wget, custom_bget,
- custom_lput, custom_wput, custom_bput,
- default_xlate, default_check, NULL, L"Custom chipset",
- custom_lgeti, custom_wgeti, ABFLAG_IO
-};
-
-static uae_u32 REGPARAM2 custom_wgeti (uaecptr addr)
-{
- if (currprefs.cpu_model >= 68020)
- return dummy_wgeti (addr);
- return custom_wget (addr);
-}
-static uae_u32 REGPARAM2 custom_lgeti (uaecptr addr)
-{
- if (currprefs.cpu_model >= 68020)
- return dummy_lgeti (addr);
- return custom_lget (addr);
-}
-
-STATIC_INLINE uae_u32 REGPARAM2 custom_wget_1 (int hpos, uaecptr addr, int noput)
-{
- uae_u16 v;
-#ifdef JIT
- special_mem |= S_READ;
-#endif
- addr &= 0xfff;
-#if CUSTOM_DEBUG > 2
- write_log (L"%d:%d:wget: %04X=%04X pc=%p\n", current_hpos(), vpos, addr, addr & 0x1fe, m68k_getpc ());
-#endif
- switch (addr & 0x1fe) {
- case 0x002: v = DMACONR (hpos); break;
- case 0x004: v = VPOSR (); break;
- case 0x006: v = VHPOSR (); break;
-
- case 0x00A: v = JOY0DAT (); break;
- case 0x00C: v = JOY1DAT (); break;
- case 0x00E: v = CLXDAT (); break;
- case 0x010: v = ADKCONR (); break;
-
- case 0x012: v = POT0DAT (); break;
- case 0x014: v = POT1DAT (); break;
- case 0x016: v = POTGOR (); break;
- case 0x018: v = SERDATR (); break;
- case 0x01A: v = DSKBYTR (hpos); break;
- case 0x01C: v = INTENAR (); break;
- case 0x01E: v = INTREQR (); break;
- case 0x07C: v = DENISEID (); break;
-
-#ifdef AGA
- case 0x180: case 0x182: case 0x184: case 0x186: case 0x188: case 0x18A:
- case 0x18C: case 0x18E: case 0x190: case 0x192: case 0x194: case 0x196:
- case 0x198: case 0x19A: case 0x19C: case 0x19E: case 0x1A0: case 0x1A2:
- case 0x1A4: case 0x1A6: case 0x1A8: case 0x1AA: case 0x1AC: case 0x1AE:
- case 0x1B0: case 0x1B2: case 0x1B4: case 0x1B6: case 0x1B8: case 0x1BA:
- case 0x1BC: case 0x1BE:
- v = COLOR_READ ((addr & 0x3E) / 2);
- break;
-#endif
-
- default:
- /* OCS/ECS:
- * reading write-only register causes write with last value in chip
- * bus (custom registers, chipram, slowram)
- * and finally returns either all ones or something weird if DMA happens
- * in next (or previous) cycle.. FIXME.
- *
- * OCS-only special case: DFF000 (BLTDAT) will always return whatever was left in bus
- *
- * AGA:
- * only writes to custom registers change last value, read returns
- * last value which then changes to all ones (following read will return
- * all ones)
- */
- v = last_custom_value1;
- if (!noput) {
- int r;
- uae_u16 old = last_custom_value1;
- uae_u16 l = currprefs.cpu_compatible && currprefs.cpu_model == 68000 ? regs.irc : 0xffff;//last_custom_value;
- decide_line (hpos);
- decide_fetch (hpos);
- decide_blitter (hpos);
- debug_wputpeek (0xdff000 + addr, l);
- r = custom_wput_1 (hpos, addr, l, 1);
- if (currprefs.chipset_mask & CSMASK_AGA) {
- v = l;
- last_custom_value1 = 0xffff;
- } else if (currprefs.chipset_mask & CSMASK_ECS_AGNUS) {
- v = old;
- } else {
- if ((addr & 0x1fe) == 0) {
- if (is_cycle_ce ())
- v = old;
- else
- v = l;
- } else {
- v = old;
- }
- }
-#if CUSTOM_DEBUG > 0
- write_log (L"%08X read = %04X. Value written=%04X PC=%08x\n", 0xdff000 | addr, v, l, M68K_GETPC);
-#endif
-
- }
- return v;
- }
- return v;
-}
-
-STATIC_INLINE uae_u32 custom_wget2 (uaecptr addr)
-{
- uae_u32 v;
- int hpos = current_hpos ();
-
- sync_copper_with_cpu (hpos, 1);
- v = custom_wget_1 (hpos, addr, 0);
-#ifdef ACTION_REPLAY
-#ifdef ACTION_REPLAY_COMMON
- addr &= 0x1ff;
- ar_custom[addr + 0] = (uae_u8)(v >> 8);
- ar_custom[addr + 1] = (uae_u8)(v);
-#endif
-#endif
- return v;
-}
-
-static uae_u32 REGPARAM2 custom_wget (uaecptr addr)
-{
- uae_u32 v;
-
- if (addr & 1) {
- /* think about move.w $dff005,d0.. (68020+ only) */
- addr &= ~1;
- v = custom_wget2 (addr) << 8;
- v |= custom_wget2 (addr + 2) >> 8;
- return v;
- }
- return custom_wget2 (addr);
-}
-
-static uae_u32 REGPARAM2 custom_bget (uaecptr addr)
-{
-#ifdef JIT
- special_mem |= S_READ;
-#endif
- return custom_wget2 (addr & ~1) >> (addr & 1 ? 0 : 8);
-}
-
-static uae_u32 REGPARAM2 custom_lget (uaecptr addr)
-{
-#ifdef JIT
- special_mem |= S_READ;
-#endif
- return ((uae_u32)custom_wget (addr) << 16) | custom_wget (addr + 2);
-}
-static int REGPARAM2 custom_wput_1 (int hpos, uaecptr addr, uae_u32 value, int noget)
-{
- addr &= 0x1FE;
- value &= 0xffff;
-#ifdef ACTION_REPLAY
-#ifdef ACTION_REPLAY_COMMON
- ar_custom[addr+0]=(uae_u8)(value>>8);
- ar_custom[addr+1]=(uae_u8)(value);
-#endif
-#endif
- switch (addr) {
- case 0x00E: CLXDAT (); break;
-
- case 0x020: DSKPTH (value); break;
- case 0x022: DSKPTL (value); break;
- case 0x024: DSKLEN (value, hpos); break;
- case 0x026: DSKDAT (value); break;
-
- case 0x02A: VPOSW (value); break;
- case 0x02C: VHPOSW (value); break;
- case 0x02E: COPCON (value); break;
- case 0x030: SERDAT (value); break;
- case 0x032: SERPER (value); break;
- case 0x034: POTGO (value); break;
-
- case 0x040: BLTCON0 (hpos, value); break;
- case 0x042: BLTCON1 (hpos, value); break;
-
- case 0x044: BLTAFWM (hpos, value); break;
- case 0x046: BLTALWM (hpos, value); break;
-
- case 0x050: BLTAPTH (hpos, value); break;
- case 0x052: BLTAPTL (hpos, value); break;
- case 0x04C: BLTBPTH (hpos, value); break;
- case 0x04E: BLTBPTL (hpos, value); break;
- case 0x048: BLTCPTH (hpos, value); break;
- case 0x04A: BLTCPTL (hpos, value); break;
- case 0x054: BLTDPTH (hpos, value); break;
- case 0x056: BLTDPTL (hpos, value); break;
-
- case 0x058: BLTSIZE (hpos, value); break;
-
- case 0x064: BLTAMOD (hpos, value); break;
- case 0x062: BLTBMOD (hpos, value); break;
- case 0x060: BLTCMOD (hpos, value); break;
- case 0x066: BLTDMOD (hpos, value); break;
-
- case 0x070: BLTCDAT (hpos, value); break;
- case 0x072: BLTBDAT (hpos, value); break;
- case 0x074: BLTADAT (hpos, value); break;
-
- case 0x07E: DSKSYNC (hpos, value); break;
-
- case 0x080: COP1LCH (value); break;
- case 0x082: COP1LCL (value); break;
- case 0x084: COP2LCH (value); break;
- case 0x086: COP2LCL (value); break;
-
- case 0x088: COPJMP (1, 0); break;
- case 0x08A: COPJMP (2, 0); break;
-
- case 0x08E: DIWSTRT (hpos, value); break;
- case 0x090: DIWSTOP (hpos, value); break;
- case 0x092: DDFSTRT (hpos, value); break;
- case 0x094: DDFSTOP (hpos, value); break;
-
- case 0x096: DMACON (hpos, value); break;
- case 0x098: CLXCON (value); break;
- case 0x09A: INTENA (value); break;
- case 0x09C: INTREQ (value); break;
- case 0x09E: ADKCON (hpos, value); break;
-
- case 0x0A0: AUDxLCH (0, value); break;
- case 0x0A2: AUDxLCL (0, value); break;
- case 0x0A4: AUDxLEN (0, value); break;
- case 0x0A6: AUDxPER (0, value); break;
- case 0x0A8: AUDxVOL (0, value); break;
- case 0x0AA: AUDxDAT (0, value); break;
-
- case 0x0B0: AUDxLCH (1, value); break;
- case 0x0B2: AUDxLCL (1, value); break;
- case 0x0B4: AUDxLEN (1, value); break;
- case 0x0B6: AUDxPER (1, value); break;
- case 0x0B8: AUDxVOL (1, value); break;
- case 0x0BA: AUDxDAT (1, value); break;
-
- case 0x0C0: AUDxLCH (2, value); break;
- case 0x0C2: AUDxLCL (2, value); break;
- case 0x0C4: AUDxLEN (2, value); break;
- case 0x0C6: AUDxPER (2, value); break;
- case 0x0C8: AUDxVOL (2, value); break;
- case 0x0CA: AUDxDAT (2, value); break;
-
- case 0x0D0: AUDxLCH (3, value); break;
- case 0x0D2: AUDxLCL (3, value); break;
- case 0x0D4: AUDxLEN (3, value); break;
- case 0x0D6: AUDxPER (3, value); break;
- case 0x0D8: AUDxVOL (3, value); break;
- case 0x0DA: AUDxDAT (3, value); break;
-
- case 0x0E0: BPLxPTH (hpos, value, 0); break;
- case 0x0E2: BPLxPTL (hpos, value, 0); break;
- case 0x0E4: BPLxPTH (hpos, value, 1); break;
- case 0x0E6: BPLxPTL (hpos, value, 1); break;
- case 0x0E8: BPLxPTH (hpos, value, 2); break;
- case 0x0EA: BPLxPTL (hpos, value, 2); break;
- case 0x0EC: BPLxPTH (hpos, value, 3); break;
- case 0x0EE: BPLxPTL (hpos, value, 3); break;
- case 0x0F0: BPLxPTH (hpos, value, 4); break;
- case 0x0F2: BPLxPTL (hpos, value, 4); break;
- case 0x0F4: BPLxPTH (hpos, value, 5); break;
- case 0x0F6: BPLxPTL (hpos, value, 5); break;
- case 0x0F8: BPLxPTH (hpos, value, 6); break;
- case 0x0FA: BPLxPTL (hpos, value, 6); break;
- case 0x0FC: BPLxPTH (hpos, value, 7); break;
- case 0x0FE: BPLxPTL (hpos, value, 7); break;
-
- case 0x100: BPLCON0 (hpos, value); break;
- case 0x102: BPLCON1 (hpos, value); break;
- case 0x104: BPLCON2 (hpos, value); break;
-#ifdef ECS_DENISE
- case 0x106: BPLCON3 (hpos, value); break;
-#endif
-
- case 0x108: BPL1MOD (hpos, value); break;
- case 0x10A: BPL2MOD (hpos, value); break;
-#ifdef AGA
- case 0x10E: CLXCON2 (value); break;
-#endif
-
- case 0x110: BPLxDAT (hpos, 0, value); break;
- case 0x112: BPLxDAT (hpos, 1, value); break;
- case 0x114: BPLxDAT (hpos, 2, value); break;
- case 0x116: BPLxDAT (hpos, 3, value); break;
- case 0x118: BPLxDAT (hpos, 4, value); break;
- case 0x11A: BPLxDAT (hpos, 5, value); break;
- case 0x11C: BPLxDAT (hpos, 6, value); break;
- case 0x11E: BPLxDAT (hpos, 7, value); break;
-
- case 0x180: case 0x182: case 0x184: case 0x186: case 0x188: case 0x18A:
- case 0x18C: case 0x18E: case 0x190: case 0x192: case 0x194: case 0x196:
- case 0x198: case 0x19A: case 0x19C: case 0x19E: case 0x1A0: case 0x1A2:
- case 0x1A4: case 0x1A6: case 0x1A8: case 0x1AA: case 0x1AC: case 0x1AE:
- case 0x1B0: case 0x1B2: case 0x1B4: case 0x1B6: case 0x1B8: case 0x1BA:
- case 0x1BC: case 0x1BE:
- COLOR_WRITE (hpos, value & 0xFFF, (addr & 0x3E) / 2);
- break;
- case 0x120: case 0x124: case 0x128: case 0x12C:
- case 0x130: case 0x134: case 0x138: case 0x13C:
- SPRxPTH (hpos, value, (addr - 0x120) / 4);
- break;
- case 0x122: case 0x126: case 0x12A: case 0x12E:
- case 0x132: case 0x136: case 0x13A: case 0x13E:
- SPRxPTL (hpos, value, (addr - 0x122) / 4);
- break;
- case 0x140: case 0x148: case 0x150: case 0x158:
- case 0x160: case 0x168: case 0x170: case 0x178:
- SPRxPOS (hpos, value, (addr - 0x140) / 8);
- break;
- case 0x142: case 0x14A: case 0x152: case 0x15A:
- case 0x162: case 0x16A: case 0x172: case 0x17A:
- SPRxCTL (hpos, value, (addr - 0x142) / 8);
- break;
- case 0x144: case 0x14C: case 0x154: case 0x15C:
- case 0x164: case 0x16C: case 0x174: case 0x17C:
- SPRxDATA (hpos, value, (addr - 0x144) / 8);
- break;
- case 0x146: case 0x14E: case 0x156: case 0x15E:
- case 0x166: case 0x16E: case 0x176: case 0x17E:
- SPRxDATB (hpos, value, (addr - 0x146) / 8);
- break;
-
- case 0x36: JOYTEST (value); break;
- case 0x5A: BLTCON0L (hpos, value); break;
- case 0x5C: BLTSIZV (hpos, value); break;
- case 0x5E: BLTSIZH (hpos, value); break;
- case 0x1E4: DIWHIGH (hpos, value); break;
-#ifdef AGA
- case 0x10C: BPLCON4 (hpos, value); break;
-#endif
-
-#ifndef CUSTOM_SIMPLE
- case 0x1DC: BEAMCON0 (value); break;
-#ifdef ECS_DENISE
- case 0x1C0: if (htotal != value) { htotal = value; varsync (); } break;
- case 0x1C2: if (hsstop != value) { hsstop = value; varsync (); } break;
- case 0x1C4: if (hbstrt != value) { hbstrt = value; varsync (); } break;
- case 0x1C6: if (hbstop != value) { hbstop = value; varsync (); } break;
- case 0x1C8: if (vtotal != value) { vtotal = value; varsync (); } break;
- case 0x1CA: if (vsstop != value) { vsstop = value; varsync (); } break;
- case 0x1CC: if (vbstrt < value || vbstrt > value + 1) { vbstrt = value; varsync (); } break;
- case 0x1CE: if (vbstop < value || vbstop > value + 1) { vbstop = value; varsync (); } break;
- case 0x1DE: if (hsstrt != value) { hsstrt = value; varsync (); } break;
- case 0x1E0: if (vsstrt != value) { vsstrt = value; varsync (); } break;
- case 0x1E2: if (hcenter != value) { hcenter = value; varsync (); } break;
-#endif
-#endif
-
-#ifdef AGA
- case 0x1FC: FMODE (hpos, value); break;
-#endif
- case 0x1FE: FNULL (value); break;
-
- /* writing to read-only register causes read access */
- default:
- if (!noget) {
-#if CUSTOM_DEBUG > 0
- write_log (L"%04X written %08x\n", addr, M68K_GETPC);
-#endif
- custom_wget_1 (hpos, addr, 1);
- }
- return 1;
- }
- return 0;
-}
-
-static void REGPARAM2 custom_wput (uaecptr addr, uae_u32 value)
-{
- int hpos = current_hpos ();
-#ifdef JIT
- special_mem |= S_WRITE;
-#endif
-#if CUSTOM_DEBUG > 2
- write_log (L"%d:%d:wput: %04X %04X pc=%p\n", hpos, vpos, addr & 0x01fe, value & 0xffff, m68k_getpc ());
-#endif
- sync_copper_with_cpu (hpos, 1);
- if (addr & 1) {
- addr &= ~1;
- custom_wput_1 (hpos, addr, (value >> 8) | (value & 0xff00), 0);
- custom_wput_1 (hpos, addr + 2, (value << 8) | (value & 0x00ff), 0);
- return;
- }
- custom_wput_1 (hpos, addr, value, 0);
-}
-
-static void REGPARAM2 custom_bput (uaecptr addr, uae_u32 value)
-{
- static int warned;
- uae_u16 rval;
-
- if (addr & 1) {
- rval = value & 0xff;
- } else {
- rval = (value << 8) | (value & 0xFF);
- }
-
-#ifdef JIT
- special_mem |= S_WRITE;
-#endif
- if (currprefs.cpu_model == 68060) {
- if (addr & 1)
- custom_wput (addr & ~1, rval);
- else
- custom_wput (addr, value << 8);
- } else {
- custom_wput (addr & ~1, rval);
- }
- if (warned < 10) {
- if (M68K_GETPC < 0xe00000 || M68K_GETPC >= 0x10000000) {
- write_log (L"Byte put to custom register %04X PC=%08X\n", addr, M68K_GETPC);
- warned++;
- }
- }
-}
-
-static void REGPARAM2 custom_lput(uaecptr addr, uae_u32 value)
-{
-#ifdef JIT
- special_mem |= S_WRITE;
-#endif
- custom_wput (addr & 0xfffe, value >> 16);
- custom_wput ((addr + 2) & 0xfffe, (uae_u16)value);
-}
-
-#ifdef SAVESTATE
-
-void custom_prepare_savestate (void)
-{
- int i;
-
- for (i = 0; i < ev2_max; i++) {
- if (eventtab2[i].active) {
- eventtab2[i].active = 0;
- eventtab2[i].handler (eventtab2[i].data);
- }
- }
-}
-
-#define RB restore_u8 ()
-#define RW restore_u16 ()
-#define RL restore_u32 ()
-
-uae_u8 *restore_custom (uae_u8 *src)
-{
- uae_u16 dsklen, dskbytr;
- int dskpt;
- int i;
-
- audio_reset ();
-
- changed_prefs.chipset_mask = currprefs.chipset_mask = RL;
- update_mirrors ();
- RW; /* 000 BLTDDAT */
- RW; /* 002 DMACONR */
- RW; /* 004 VPOSR */
- RW; /* 006 VHPOSR */
- RW; /* 008 DSKDATR (dummy register) */
- RW; /* 00A JOY0DAT */
- RW; /* 00C JOY1DAT */
- clxdat = RW; /* 00E CLXDAT */
- RW; /* 010 ADKCONR */
- RW; /* 012 POT0DAT* */
- RW; /* 014 POT1DAT* */
- RW; /* 016 POTINP* */
- RW; /* 018 SERDATR* */
- dskbytr = RW; /* 01A DSKBYTR */
- RW; /* 01C INTENAR */
- RW; /* 01E INTREQR */
- dskpt = RL; /* 020-022 DSKPT */
- dsklen = RW; /* 024 DSKLEN */
- RW; /* 026 DSKDAT */
- RW; /* 028 REFPTR */
- i = RW; lof = (i & 0x8000) ? 1 : 0; lol = (i & 0x0080); /* 02A VPOSW */
- RW; /* 02C VHPOSW */
- COPCON (RW); /* 02E COPCON */
- RW; /* 030 SERDAT* */
- RW; /* 032 SERPER* */
- POTGO (RW); /* 034 POTGO */
- RW; /* 036 JOYTEST* */
- RW; /* 038 STREQU */
- RW; /* 03A STRVHBL */
- RW; /* 03C STRHOR */
- RW; /* 03E STRLONG */
- BLTCON0 (0, RW); /* 040 BLTCON0 */
- BLTCON1 (0, RW); /* 042 BLTCON1 */
- BLTAFWM (0, RW); /* 044 BLTAFWM */
- BLTALWM (0, RW); /* 046 BLTALWM */
- BLTCPTH (0, RW);BLTCPTL(0, RW); /* 048-04B BLTCPT */
- BLTBPTH (0, RW);BLTBPTL(0, RW); /* 04C-04F BLTBPT */
- BLTAPTH (0, RW);BLTAPTL(0, RW); /* 050-053 BLTAPT */
- BLTDPTH (0, RW);BLTDPTL(0, RW); /* 054-057 BLTDPT */
- RW; /* 058 BLTSIZE */
- RW; /* 05A BLTCON0L */
- blt_info.vblitsize = RW; /* 05C BLTSIZV */
- blt_info.hblitsize = RW; /* 05E BLTSIZH */
- BLTCMOD (0, RW); /* 060 BLTCMOD */
- BLTBMOD (0, RW); /* 062 BLTBMOD */
- BLTAMOD (0, RW); /* 064 BLTAMOD */
- BLTDMOD (0, RW); /* 066 BLTDMOD */
- RW; /* 068 ? */
- RW; /* 06A ? */
- RW; /* 06C ? */
- RW; /* 06E ? */
- BLTCDAT (0, RW); /* 070 BLTCDAT */
- BLTBDAT (0, RW); /* 072 BLTBDAT */
- BLTADAT (0, RW); /* 074 BLTADAT */
- RW; /* 076 ? */
- RW; /* 078 ? */
- RW; /* 07A ? */
- RW; /* 07C LISAID */
- DSKSYNC (-1, RW); /* 07E DSKSYNC */
- cop1lc = RL; /* 080/082 COP1LC */
- cop2lc = RL; /* 084/086 COP2LC */
- RW; /* 088 ? */
- RW; /* 08A ? */
- RW; /* 08C ? */
- diwstrt = RW; /* 08E DIWSTRT */
- diwstop = RW; /* 090 DIWSTOP */
- ddfstrt = RW; /* 092 DDFSTRT */
- ddfstop = RW; /* 094 DDFSTOP */
- dmacon = RW & ~(0x2000|0x4000); /* 096 DMACON */
- CLXCON (RW); /* 098 CLXCON */
- intena = RW; /* 09A INTENA */
- intreq = intreqr = RW | 0x20; /* 09C INTREQ */
- adkcon = RW; /* 09E ADKCON */
- for (i = 0; i < 8; i++)
- bplptx[i] = bplpt[i] = RL;
- bplcon0 = RW; /* 100 BPLCON0 */
- bplcon1 = RW; /* 102 BPLCON1 */
- bplcon2 = RW; /* 104 BPLCON2 */
- bplcon3 = RW; /* 106 BPLCON3 */
- bpl1mod = RW; /* 108 BPL1MOD */
- bpl2mod = RW; /* 10A BPL2MOD */
- bplcon4 = RW; /* 10C BPLCON4 */
- clxcon2 = RW; /* 10E CLXCON2* */
- for(i = 0; i < 8; i++)
- bplxdat[i] = RW; /* BPLXDAT */
- for(i = 0; i < 32; i++)
- current_colors.color_regs_ecs[i] = RW; /* 180 COLORxx */
- htotal = RW; /* 1C0 HTOTAL */
- hsstop = RW; /* 1C2 HSTOP ? */
- hbstrt = RW; /* 1C4 HBSTRT ? */
- hbstop = RW; /* 1C6 HBSTOP ? */
- vtotal = RW; /* 1C8 VTOTAL */
- vsstop = RW; /* 1CA VSSTOP */
- vbstrt = RW; /* 1CC VBSTRT */
- vbstop = RW; /* 1CE VBSTOP */
- RW; /* 1D0 ? */
- RW; /* 1D2 ? */
- RW; /* 1D4 ? */
- RW; /* 1D6 ? */
- RW; /* 1D8 ? */
- RW; /* 1DA ? */
- new_beamcon0 = RW; /* 1DC BEAMCON0 */
- hsstrt = RW; /* 1DE HSSTRT */
- vsstrt = RW; /* 1E0 VSSTT */
- hcenter = RW; /* 1E2 HCENTER */
- diwhigh = RW; /* 1E4 DIWHIGH */
- diwhigh_written = (diwhigh & 0x8000) ? 1 : 0;
- diwhigh &= 0x7fff;
- RW; /* 1E6 ? */
- RW; /* 1E8 ? */
- RW; /* 1EA ? */
- RW; /* 1EC ? */
- RW; /* 1EE ? */
- RW; /* 1F0 ? */
- RW; /* 1F2 ? */
- RW; /* 1F4 ? */
- RW; /* 1F6 ? */
- RW; /* 1F8 ? */
- RW; /* 1FA ? */
- fmode = RW; /* 1FC FMODE */
- last_custom_value1 = RW; /* 1FE ? */
-
- DISK_restore_custom (dskpt, dsklen, dskbytr);
-
- return src;
-}
-
-#endif /* SAVESTATE */
-
-#if defined SAVESTATE || defined DEBUGGER
-
-#define SB save_u8
-#define SW save_u16
-#define SL save_u32
-
-extern uae_u16 serper;
-
-uae_u8 *save_custom (int *len, uae_u8 *dstptr, int full)
-{
- uae_u8 *dstbak, *dst;
- int i;
- uae_u32 dskpt;
- uae_u16 dsklen, dsksync, dskbytr;
-
- DISK_save_custom (&dskpt, &dsklen, &dsksync, &dskbytr);
-
- if (dstptr)
- dstbak = dst = dstptr;
- else
- dstbak = dst = malloc (8 + 256 * 2);
-
- SL (currprefs.chipset_mask);
- SW (0); /* 000 BLTDDAT */
- SW (dmacon); /* 002 DMACONR */
- SW (VPOSR ()); /* 004 VPOSR */
- SW (VHPOSR ()); /* 006 VHPOSR */
- SW (0); /* 008 DSKDATR */
- SW (JOY0DAT ()); /* 00A JOY0DAT */
- SW (JOY1DAT ()); /* 00C JOY1DAT */
- SW (clxdat | 0x8000); /* 00E CLXDAT */
- SW (ADKCONR ()); /* 010 ADKCONR */
- SW (POT0DAT ()); /* 012 POT0DAT */
- SW (POT0DAT ()); /* 014 POT1DAT */
- SW (0) ; /* 016 POTINP * */
- SW (0); /* 018 SERDATR * */
- SW (dskbytr); /* 01A DSKBYTR */
- SW (INTENAR ()); /* 01C INTENAR */
- SW (INTREQR ()); /* 01E INTREQR */
- SL (dskpt); /* 020-023 DSKPT */
- SW (dsklen); /* 024 DSKLEN */
- SW (0); /* 026 DSKDAT */
- SW (0); /* 028 REFPTR */
- SW ((lof ? 0x8001 : 0) | (lol ? 0x0080 : 0));/* 02A VPOSW */
- SW (0); /* 02C VHPOSW */
- SW (copcon); /* 02E COPCON */
- SW (serper); /* 030 SERDAT * */
- SW (serdat); /* 032 SERPER * */
- SW (potgo_value); /* 034 POTGO */
- SW (0); /* 036 JOYTEST * */
- SW (0); /* 038 STREQU */
- SW (0); /* 03A STRVBL */
- SW (0); /* 03C STRHOR */
- SW (0); /* 03E STRLONG */
- SW (bltcon0); /* 040 BLTCON0 */
- SW (bltcon1); /* 042 BLTCON1 */
- SW (blt_info.bltafwm); /* 044 BLTAFWM */
- SW (blt_info.bltalwm); /* 046 BLTALWM */
- SL (bltcpt); /* 048-04B BLTCPT */
- SL (bltbpt); /* 04C-04F BLTCPT */
- SL (bltapt); /* 050-053 BLTCPT */
- SL (bltdpt); /* 054-057 BLTCPT */
- SW (0); /* 058 BLTSIZE */
- SW (0); /* 05A BLTCON0L (use BLTCON0 instead) */
- SW (blt_info.vblitsize); /* 05C BLTSIZV */
- SW (blt_info.hblitsize); /* 05E BLTSIZH */
- SW (blt_info.bltcmod); /* 060 BLTCMOD */
- SW (blt_info.bltbmod); /* 062 BLTBMOD */
- SW (blt_info.bltamod); /* 064 BLTAMOD */
- SW (blt_info.bltdmod); /* 066 BLTDMOD */
- SW (0); /* 068 ? */
- SW (0); /* 06A ? */
- SW (0); /* 06C ? */
- SW (0); /* 06E ? */
- SW (blt_info.bltcdat); /* 070 BLTCDAT */
- SW (blt_info.bltbdat); /* 072 BLTBDAT */
- SW (blt_info.bltadat); /* 074 BLTADAT */
- SW (0); /* 076 ? */
- SW (0); /* 078 ? */
- SW (0); /* 07A ? */
- SW (DENISEID ()); /* 07C DENISEID/LISAID */
- SW (dsksync); /* 07E DSKSYNC */
- SL (cop1lc); /* 080-083 COP1LC */
- SL (cop2lc); /* 084-087 COP2LC */
- SW (0); /* 088 ? */
- SW (0); /* 08A ? */
- SW (0); /* 08C ? */
- SW (diwstrt); /* 08E DIWSTRT */
- SW (diwstop); /* 090 DIWSTOP */
- SW (ddfstrt); /* 092 DDFSTRT */
- SW (ddfstop); /* 094 DDFSTOP */
- SW (dmacon); /* 096 DMACON */
- SW (clxcon); /* 098 CLXCON */
- SW (intena); /* 09A INTENA */
- SW (intreq); /* 09C INTREQ */
- SW (adkcon); /* 09E ADKCON */
- for (i = 0; full && i < 32; i++)
- SW (0);
- for (i = 0; i < 8; i++)
- SL (bplpt[i]); /* 0E0-0FE BPLxPT */
- SW (bplcon0); /* 100 BPLCON0 */
- SW (bplcon1); /* 102 BPLCON1 */
- SW (bplcon2); /* 104 BPLCON2 */
- SW (bplcon3); /* 106 BPLCON3 */
- SW (bpl1mod); /* 108 BPL1MOD */
- SW (bpl2mod); /* 10A BPL2MOD */
- SW (bplcon4); /* 10C BPLCON4 */
- SW (clxcon2); /* 10E CLXCON2 */
- for (i = 0;i < 8; i++)
- SW (bplxdat[i]); /* 110 BPLxDAT */
- if (full) {
- for (i = 0; i < 8; i++) {
- SL (spr[i].pt); /* 120-13E SPRxPT */
- SW (sprpos[i]); /* 1x0 SPRxPOS */
- SW (sprctl[i]); /* 1x2 SPRxPOS */
- SW (sprdata[i][0]); /* 1x4 SPRxDATA */
- SW (sprdatb[i][0]); /* 1x6 SPRxDATB */
- }
- }
- for ( i = 0; i < 32; i++) {
- if (currprefs.chipset_mask & CSMASK_AGA) {
- uae_u32 v = current_colors.color_regs_aga[i];
- uae_u16 v2;
- v &= 0x00f0f0f0;
- v2 = (v >> 4) & 15;
- v2 |= ((v >> 12) & 15) << 4;
- v2 |= ((v >> 20) & 15) << 8;
- SW (v2);
- } else {
- SW (current_colors.color_regs_ecs[i]); /* 180-1BE COLORxx */
- }
- }
- SW (htotal); /* 1C0 HTOTAL */
- SW (hsstop); /* 1C2 HSTOP*/
- SW (hbstrt); /* 1C4 HBSTRT */
- SW (hbstop); /* 1C6 HBSTOP */
- SW (vtotal); /* 1C8 VTOTAL */
- SW (vsstop); /* 1CA VSSTOP */
- SW (vbstrt); /* 1CC VBSTRT */
- SW (vbstop); /* 1CE VBSTOP */
- SW (0); /* 1D0 */
- SW (0); /* 1D2 */
- SW (0); /* 1D4 */
- SW (0); /* 1D6 */
- SW (0); /* 1D8 */
- SW (0); /* 1DA */
- SW (beamcon0); /* 1DC BEAMCON0 */
- SW (hsstrt); /* 1DE HSSTRT */
- SW (vsstrt); /* 1E0 VSSTRT */
- SW (hcenter); /* 1E2 HCENTER */
- SW (diwhigh | (diwhigh_written ? 0x8000 : 0)); /* 1E4 DIWHIGH */
- SW (0); /* 1E6 */
- SW (0); /* 1E8 */
- SW (0); /* 1EA */
- SW (0); /* 1EC */
- SW (0); /* 1EE */
- SW (0); /* 1F0 */
- SW (0); /* 1F2 */
- SW (0); /* 1F4 */
- SW (0); /* 1F6 */
- SW (0); /* 1F8 */
- SW (0); /* 1FA */
- SW (fmode); /* 1FC FMODE */
- SW (last_custom_value1); /* 1FE */
-
- *len = dst - dstbak;
- return dstbak;
-}
-
-#endif /* SAVESTATE || DEBUGGER */
-
-#ifdef SAVESTATE
-
-uae_u8 *restore_custom_agacolors (uae_u8 *src)
-{
- int i;
-
- for (i = 0; i < 256; i++) {
-#ifdef AGA
- uae_u32 v = RL;
- color_regs_aga_genlock[i] = 0;
- if (v & 0x80000000)
- color_regs_aga_genlock[i] = 1;
- v &= 0x00ffffff;
- current_colors.color_regs_aga[i] = v;
-#else
- RL;
-#endif
- }
- return src;
-}
-
-uae_u8 *save_custom_agacolors (int *len, uae_u8 *dstptr)
-{
- uae_u8 *dstbak, *dst;
- int i;
-
- if (dstptr)
- dstbak = dst = dstptr;
- else
- dstbak = dst = xmalloc (256*4);
- for (i = 0; i < 256; i++)
-#ifdef AGA
- SL (current_colors.color_regs_aga[i] | (color_regs_aga_genlock[i] ? 0x80000000 : 0));
-#else
- SL (0);
-#endif
- *len = dst - dstbak;
- return dstbak;
-}
-
-uae_u8 *restore_custom_sprite (int num, uae_u8 *src)
-{
- spr[num].pt = RL; /* 120-13E SPRxPT */
- sprpos[num] = RW; /* 1x0 SPRxPOS */
- sprctl[num] = RW; /* 1x2 SPRxPOS */
- sprdata[num][0] = RW; /* 1x4 SPRxDATA */
- sprdatb[num][0] = RW; /* 1x6 SPRxDATB */
- sprdata[num][1] = RW;
- sprdatb[num][1] = RW;
- sprdata[num][2] = RW;
- sprdatb[num][2] = RW;
- sprdata[num][3] = RW;
- sprdatb[num][3] = RW;
- spr[num].armed = RB;
- return src;
-}
-
-uae_u8 *save_custom_sprite(int num, int *len, uae_u8 *dstptr)
-{
- uae_u8 *dstbak, *dst;
-
- if (dstptr)
- dstbak = dst = dstptr;
- else
- dstbak = dst = xmalloc (30);
- SL (spr[num].pt); /* 120-13E SPRxPT */
- SW (sprpos[num]); /* 1x0 SPRxPOS */
- SW (sprctl[num]); /* 1x2 SPRxPOS */
- SW (sprdata[num][0]); /* 1x4 SPRxDATA */
- SW (sprdatb[num][0]); /* 1x6 SPRxDATB */
- SW (sprdata[num][1]);
- SW (sprdatb[num][1]);
- SW (sprdata[num][2]);
- SW (sprdatb[num][2]);
- SW (sprdata[num][3]);
- SW (sprdatb[num][3]);
- SB (spr[num].armed ? 1 : 0);
- *len = dst - dstbak;
- return dstbak;
-}
-
-#endif /* SAVESTATE */
-
-void check_prefs_changed_custom (void)
-{
- currprefs.gfx_framerate = changed_prefs.gfx_framerate;
- if (inputdevice_config_change_test ())
- inputdevice_copyconfig (&changed_prefs, &currprefs);
- currprefs.immediate_blits = changed_prefs.immediate_blits;
- currprefs.collision_level = changed_prefs.collision_level;
-
- currprefs.cs_ciaatod = changed_prefs.cs_ciaatod;
- currprefs.cs_rtc = changed_prefs.cs_rtc;
- currprefs.cs_cd32cd = changed_prefs.cs_cd32cd;
- currprefs.cs_cd32c2p = changed_prefs.cs_cd32c2p;
- currprefs.cs_cd32nvram = changed_prefs.cs_cd32nvram;
- currprefs.cs_cdtvcd = changed_prefs.cs_cdtvcd;
- currprefs.cs_ide = changed_prefs.cs_ide;
- currprefs.cs_pcmcia = changed_prefs.cs_pcmcia;
- currprefs.cs_fatgaryrev = changed_prefs.cs_fatgaryrev;
- currprefs.cs_ramseyrev = changed_prefs.cs_ramseyrev;
- currprefs.cs_agnusrev = changed_prefs.cs_agnusrev;
- currprefs.cs_deniserev = changed_prefs.cs_deniserev;
- currprefs.cs_mbdmac = changed_prefs.cs_mbdmac;
- currprefs.cs_df0idhw = changed_prefs.cs_df0idhw;
- currprefs.cs_slowmemisfast = changed_prefs.cs_slowmemisfast;
-
- if (currprefs.chipset_mask != changed_prefs.chipset_mask ||
- currprefs.gfx_avsync != changed_prefs.gfx_avsync ||
- currprefs.gfx_pvsync != changed_prefs.gfx_pvsync ||
- currprefs.picasso96_nocustom != changed_prefs.picasso96_nocustom ||
- currprefs.ntscmode != changed_prefs.ntscmode) {
- currprefs.picasso96_nocustom = changed_prefs.picasso96_nocustom;
- currprefs.gfx_avsync = changed_prefs.gfx_avsync;
- currprefs.gfx_pvsync = changed_prefs.gfx_pvsync;
- currprefs.chipset_mask = changed_prefs.chipset_mask;
- if (currprefs.ntscmode != changed_prefs.ntscmode) {
- currprefs.ntscmode = changed_prefs.ntscmode;
- new_beamcon0 = currprefs.ntscmode ? 0x00 : 0x20;
- }
- init_custom ();
- }
-#ifdef GFXFILTER
- currprefs.gfx_filter_horiz_zoom = changed_prefs.gfx_filter_horiz_zoom;
- currprefs.gfx_filter_vert_zoom = changed_prefs.gfx_filter_vert_zoom;
- currprefs.gfx_filter_horiz_offset = changed_prefs.gfx_filter_horiz_offset;
- currprefs.gfx_filter_vert_offset = changed_prefs.gfx_filter_vert_offset;
- currprefs.gfx_filter_scanlines = changed_prefs.gfx_filter_scanlines;
- currprefs.gfx_filter_filtermode = changed_prefs.gfx_filter_filtermode;
-#endif
-}
-
-#ifdef CPUEMU_12
-
-STATIC_INLINE void sync_copper (int hpos)
-{
- if (copper_enabled_thisline)
- update_copper (hpos);
-}
-
-STATIC_INLINE void decide_fetch_ce (int hpos)
-{
- if ((ddf_change == vpos || ddf_change + 1 == vpos) && vpos < maxvpos)
- decide_fetch (hpos);
-}
-
-#define BLIT_NASTY 4
-
-// blitter not in nasty mode = CPU gets one cycle if it has been waiting
-// at least 4 cycles (all DMA cycles count, not just blitter cycles, even
-// blitter idle cycles do count!)
-
-STATIC_INLINE int dma_cycle (void)
-{
- int hpos, hpos_old;
-
- blitter_nasty = 1;
- for (;;) {
- int bpldma;
- int blitpri = dmacon & DMA_BLITPRI;
- hpos_old = current_hpos ();
- hpos = hpos_old + 1;
- sync_copper (hpos);
- decide_line (hpos);
- decide_fetch_ce (hpos);
- bpldma = is_bitplane_dma (hpos_old);
- if (bltstate != BLT_done) {
- if (!blitpri && blitter_nasty >= BLIT_NASTY && cycle_line[hpos_old] == 0 && !bpldma) {
- alloc_cycle (hpos_old, CYCLE_CPUNASTY);
- break;
- }
- decide_blitter (hpos);
- // copper may have been waiting for the blitter
- sync_copper (hpos);
- }
- if (cycle_line[hpos_old] == 0 && !bpldma) {
- alloc_cycle (hpos_old, CYCLE_CPU);
- break;
- }
- regs.ce020memcycles -= CYCLE_UNIT;
- do_cycles (1 * CYCLE_UNIT);
- /* bus was allocated to dma channel, wait for next cycle.. */
- }
- return hpos_old;
-}
-
-STATIC_INLINE void checknasty (int hpos, int vpos)
-{
- if (blitter_nasty >= BLIT_NASTY && !(dmacon & DMA_BLITPRI))
- record_dma_event (DMA_EVENT_BLITNASTY, hpos, vpos);
-}
-
-uae_u32 wait_cpu_cycle_read (uaecptr addr, int mode)
-{
- uae_u32 v = 0;
- int hpos;
- struct dma_rec *dr;
-
- hpos = dma_cycle ();
-#ifdef DEBUGGER
- if (debug_dma) {
- dr = record_dma (0x1000, v, addr, hpos, vpos, DMARECORD_CPU);
- checknasty (hpos, vpos);
- }
-#endif
- if (mode < 0)
- v = get_long (addr);
- else if (mode > 0)
- v = get_word (addr);
- else if (mode == 0)
- v = get_byte (addr);
-#ifdef DEBUGGER
- if (debug_dma)
- dr->dat = v;
-#endif
- do_cycles_ce (2 * CYCLE_UNIT);
- regs.ce020memcycles -= 2 * CYCLE_UNIT;
- return v;
-}
-
-uae_u32 wait_cpu_cycle_read_ce020 (uaecptr addr, int mode)
-{
- return wait_cpu_cycle_read (addr, mode);
-}
-
-void wait_cpu_cycle_write (uaecptr addr, int mode, uae_u32 v)
-{
- int hpos;
-
- hpos = dma_cycle ();
-#ifdef DEBUGGER
- if (debug_dma) {
- record_dma (0x1001, v, addr, hpos, vpos, DMARECORD_CPU);
- checknasty (hpos, vpos);
- }
-#endif
- if (mode < 0)
- put_long (addr, v);
- else if (mode > 0)
- put_word (addr, v);
- else if (mode == 0)
- put_byte (addr, v);
- do_cycles_ce (2 * CYCLE_UNIT);
- regs.ce020memcycles -= 2 * CYCLE_UNIT;
-}
-
-void wait_cpu_cycle_write_ce020 (uaecptr addr, int mode, uae_u32 v)
-{
- wait_cpu_cycle_write (addr, mode, v);
-}
-
-void do_cycles_ce (long cycles)
-{
- static int extra;
-
- cycles += extra;
- while (cycles >= CYCLE_UNIT) {
- int hpos = current_hpos () + 1;
- sync_copper (hpos);
- decide_line (hpos);
- decide_fetch_ce (hpos);
- if (bltstate != BLT_done)
- decide_blitter (hpos);
- do_cycles (1 * CYCLE_UNIT);
- cycles -= CYCLE_UNIT;
- }
- extra = cycles;
-}
-
-int is_cycle_ce (void)
-{
- int hpos = current_hpos ();
- return cycle_line[hpos];
-}
-
-#endif
-
-int ispal (void)
-{
- if (beamcon0 & 0x80)
- return currprefs.ntscmode == 0;
- return maxvpos >= MAXVPOS_NTSC + (MAXVPOS_PAL - MAXVPOS_NTSC) / 2;
-}
\ No newline at end of file
projects / francis / winuae.git / commitdiff