Optional EEPROM access debug logging.

diff --git a/akiko.cpp b/akiko.cpp
index b0d225a47273a31500de0625019732cbdf7d76bd..21d1807d5d386550f312aa7f6955afbf244b47db 100644 (file)
--- a/akiko.cpp
+++ b/akiko.cpp
@@ -11,6 +11,8 @@
 *
 */
 
+#define EEPROM_DEBUG 0
+
 /*
        B80000-B80003: $C0CACAFE (Read-only identifier)
 
@@ -240,6 +242,10 @@ static void akiko_nvram_write (int offset, uae_u32 v)
        switch (offset)
        {
        case 0:
+       {
+#if EEPROM_DEBUG
+               uae_u8 o = (cd32_i2c_data_scl ? 0x80 : 0x00) | (cd32_i2c_data_sda ? 0x40 : 0x00);
+#endif
                if (cd32_i2c_direction & 0x80)
                        cd32_i2c_data_scl = (v & 0x80) != 0;
                else
@@ -250,11 +256,23 @@ static void akiko_nvram_write (int offset, uae_u32 v)
                else
                        cd32_i2c_data_sda = true;
                eeprom_i2c_set(cd32_eeprom, BITBANG_I2C_SDA, cd32_i2c_data_sda);
+#if EEPROM_DEBUG
+               uae_u8 n = (cd32_i2c_data_scl ? 0x80 : 0x00) | (cd32_i2c_data_sda ? 0x40 : 0x00);
+               write_log(_T("Data write: %02x->%02x (%02x)\n"), o, v, n);
+#endif
                break;
+       }
        case 2:
+       {
+#if EEPROM_DEBUG
+               if (cd32_i2c_direction != v) {
+                       write_log(_T("Direction write: %02x->%02x\n"), cd32_i2c_direction, v);
+               }
+#endif
                cd32_i2c_direction = v;
                break;
        }
+       }
 }
 
 static uae_u32 akiko_nvram_read (int offset)
@@ -265,9 +283,15 @@ static uae_u32 akiko_nvram_read (int offset)
        case 0:
                v |= eeprom_i2c_set(cd32_eeprom, BITBANG_I2C_SCL, cd32_i2c_data_scl) ? 0x80 : 0x00;
                v |= eeprom_i2c_set(cd32_eeprom, BITBANG_I2C_SDA, cd32_i2c_data_sda) ? 0x40 : 0x00;
+#if EEPROM_DEBUG
+               write_log(_T("Data read: %02x\n"), v);
+#endif
                break;
        case 2:
                v = cd32_i2c_direction;
+#if EEPROM_DEBUG
+               write_log(_T("Direction read: %02x\n"), v);
+#endif
                break;
        }
        return v;
@@ -2010,7 +2034,7 @@ static void patchrom(void)
        if (currprefs.cpu_model > 68020 || currprefs.cachesize || currprefs.m68k_speed != 0) {
                uae_u8 *p = extendedkickmem_bank.baseaddr;
                if (p) {
-                       for (i = 0; i < 524288 - sizeof(patchdata); i++) {
+                       for (i = 0; i < 524288 - 512; i++) {
                                if (!memcmp(p + i, patchdata2, sizeof(patchdata2)))
                                        return;                         
                                if (!memcmp(p + i, patchdata, sizeof(patchdata))) {