a_dinosaur/ZSNES
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Made STOP clear the IRQ flag when it's set, this fixes Star Fox 2

Browse Source
This commit is contained in:
pagefault
2006-02-19 10:22:27 +00:00
parent 8ae1e80cce
commit 21053fe9a2
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
zsnes/src/chips/fxemu2c.asm
View File

@@ -48,9 +48,11 @@ NEWSYM FxOpd00 ; STOP stop GSU execution (and maybe generate an IRQ)
and dword[SfxSFR],0FFFFh-32 ; Clear Go flag (set to 1 when the GSU is running) and dword[SfxSFR],0FFFFh-32 ; Clear Go flag (set to 1 when the GSU is running)
test dword[SfxCFGR],080h ; Check if the interrupt generation is on test dword[SfxCFGR],080h ; Check if the interrupt generation is on
jnz .NoIRQ jnz .NoIRQ
or dword[SfxSFR],08000h ; Set IRQ Flag ; Set IRQ Flag
.NoIRQ .NoIRQ
CLRFLAGS CLRFLAGS
and byte[SfxSFR+1],07fh
inc ebp inc ebp
mov eax,[NumberOfOpcodes] mov eax,[NumberOfOpcodes]
add eax,0F0000000h add eax,0F0000000h