Mode 4 offset change overflow fix in rendering code

2005-03-25 19:35:25 +00:00
parent be4f623a03
commit 339a2f38c5
1 changed files with 3 additions and 0 deletions
--- a/zsnes/src/video/newgfx16.mac
+++ b/zsnes/src/video/newgfx16.mac
@@ -3300,7 +3300,10 @@ EXTSYM osm2dis
    je near .offsetm16x16
    xor edx,edx
    mov dx,[BG3SYl+ebx*2]
+    test dx,08h
+    jz .overflow
    and dx,0F8h
+.overflow
    shr edx,3
    shl edx,6
    xor eax,eax