From: Toni Wilen <twilen@winuae.net>
Date: Fri, 5 Jan 2024 17:36:29 +0000 (+0200)
Subject: NCR SVGA blitter fix
X-Git-Tag: 5200~96
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=6c831a91090ecfcb85023a6f7a33dd1f88379541;p=francis%2Fwinuae.git

NCR SVGA blitter fix
---

diff --git a/pcem/vid_ncr.cpp b/pcem/vid_ncr.cpp
index 0b0e8ec8..61d569a4 100644
--- a/pcem/vid_ncr.cpp
+++ b/pcem/vid_ncr.cpp
@@ -557,12 +557,11 @@ static bool blitter_proc(ncr_t *ncr)
         uint8_t src = 0;
         if (!(ncr->blt_control & (1 << 15))) {
             // waiting for fifo write?
-            int shift = ncr->blt_expand_offset & 7;
-            if (ncr->blt_fifo_size - shift < 8) {
+            if (ncr->blt_fifo_size < 8) {
                 ncr->blt_fifo_write = 1;
                 return false;
             }
-            src = (ncr->blt_fifo_data >> shift) & 0xff;
+            src = (ncr->blt_fifo_data) & 0xff;
             ncr->blt_fifo_data >>= 8;
             ncr->blt_fifo_size -= 8;
             ncr->blt_fifo_write = 0;