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Special y value read mode for Kamen Rider

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z_demo_z
2002-06-29 16:01:27 +00:00
parent 787eaa9c04
commit d2cc661932
2 changed files with 22 additions and 4 deletions
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10
zsnes/src/cpu/regs.inc
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@@ -948,6 +948,8 @@ reg213Cr:
; V counter data by external or software latch ; V counter data by external or software latch
reg213Dr: reg213Dr:
cmp byte[latchyr],2 ; hack for games that don't read 213F
je .noreset
cmp byte[latchyr],1 cmp byte[latchyr],1
je .highv je .highv
mov al,byte[latchy] mov al,byte[latchy]
@@ -959,7 +961,11 @@ reg213Dr:
or al,byte[latchy+1] or al,byte[latchy+1]
mov byte[latchyr],0 mov byte[latchyr],0
ret ret
.noreset
mov al,byte[latchy]
and al,0FEh
or al,byte[latchy+1]
ret
; PPU Status Flag & Version number (OBJ over flags) ; PPU Status Flag & Version number (OBJ over flags)
reg213Er: reg213Er:
mov al,01h mov al,01h
@@ -1426,7 +1432,7 @@ reg43XXr:
ret ret
regINVALID: ; Invalid Register regINVALID: ; Invalid Register
cmp cx,2050h cmp cx,2100h
jb .cleared jb .cleared
mov al,ch mov al,ch
cmp byte[SPC7110Enable],0 cmp byte[SPC7110Enable],0

16
zsnes/src/init.asm
View File

@@ -1451,6 +1451,7 @@ headerhack2:
.mmx2head db 50,58,56,62,50,62,49,95,39,77,95,95,95,95,95,95,95,95,95,95 .mmx2head db 50,58,56,62,50,62,49,95,39,77,95,95,95,95,95,95,95,95,95,95
EXTSYM ewj2hack EXTSYM ewj2hack
EXTSYM latchyr
NEWSYM headerhack NEWSYM headerhack
mov byte[disablehdma],0 mov byte[disablehdma],0
@@ -1464,6 +1465,19 @@ NEWSYM headerhack
mov byte[ENVDisable],0 mov byte[ENVDisable],0
mov byte[MMXSRAMFix],0 mov byte[MMXSRAMFix],0
mov esi,[romdata]
add esi,07FC0h
cmp dword[esi],20434653h
jne .notkamenrider
cmp dword[esi+4],0D7DDD2B6h
jne .notkamenrider
cmp dword[esi+8],0B0DEC0B2h
jne .notkamenrider
cmp dword[esi+12],20202020h
jne .notkamenrider
mov byte[latchyr],2
.notkamenrider
mov esi,[romdata] mov esi,[romdata]
add esi,07FC0h add esi,07FC0h
cmp dword[esi],'EURO' cmp dword[esi],'EURO'
@@ -1479,8 +1493,6 @@ NEWSYM headerhack
mov ecx,65472 mov ecx,65472
rep stosb rep stosb
ret ret
.noteuropeanprimegoal .noteuropeanprimegoal
mov esi,[romdata] mov esi,[romdata]