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

Refined copy protection fix

Browse Source
This commit is contained in:
pagefault
2001-08-17 01:42:15 +00:00
parent 6eb660d113
commit 1412b05f1e
2 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
zsnes/src/cpu/memory.asm
View File

@@ -4230,7 +4230,7 @@ NEWSYM sramaccessbankw16s
pop ecx pop ecx
ret ret
EXTSYM MMXSRAMHack EXTSYM MMXSRAMFix
NEWSYM sramaccessbankr8b NEWSYM sramaccessbankr8b
cmp dword[ramsize],0 cmp dword[ramsize],0
@@ -4243,13 +4243,13 @@ NEWSYM sramaccessbankr8b
xor ebx,ebx xor ebx,ebx
ret ret
.noaccess .noaccess
cmp byte[MMXSRAMHack],1 cmp byte[MMXSRAMFix],1
je .mmxsramhack je .MMXSRAMFix
xor al,al xor al,al
xor ebx,ebx xor ebx,ebx
ret ret
.mmxsramhack .MMXSRAMFix
mov al,0FFh mov al,0FFh
xor ebx,ebx xor ebx,ebx
ret ret
@@ -4268,13 +4268,13 @@ NEWSYM sramaccessbankr16b
xor ebx,ebx xor ebx,ebx
ret ret
.noaccess .noaccess
cmp byte[MMXSRAMHack],1 cmp byte[MMXSRAMFix],1
je .mmxsramhack je .MMXSRAMFix
xor ax,ax xor ax,ax
xor ebx,ebx xor ebx,ebx
ret ret
.mmxsramhack .MMXSRAMFix
mov ax,0FFFFh mov ax,0FFFFh
xor ebx,ebx xor ebx,ebx
ret ret

6
zsnes/src/init.asm
View File

@@ -1327,7 +1327,7 @@ NEWSYM HIRQSkip, db 0
NEWSYM ClearScreenSkip, db 0 NEWSYM ClearScreenSkip, db 0
NEWSYM hirqmode2, db 0 NEWSYM hirqmode2, db 0
NEWSYM ENVDisable, db 0 NEWSYM ENVDisable, db 0
NEWSYM MMXSRAMHack, db 0 NEWSYM MMXSRAMFix, db 0
SECTION .text SECTION .text
; hacks : ; hacks :
@@ -1451,7 +1451,7 @@ NEWSYM headerhack
mov byte[ClearScreenSkip],0 mov byte[ClearScreenSkip],0
mov byte[hirqmode2],0 mov byte[hirqmode2],0
mov byte[ENVDisable],0 mov byte[ENVDisable],0
mov byte[MMXSRAMHack],0 mov byte[MMXSRAMFix],0
mov esi,[romdata] mov esi,[romdata]
add esi,07FC0h add esi,07FC0h
@@ -1527,7 +1527,7 @@ NEWSYM headerhack
jne .notmmx jne .notmmx
cmp dword[esi+8],'X ' cmp dword[esi+8],'X '
jne .notmmx jne .notmmx
mov byte[MMXSRAMHack],1 mov byte[MMXSRAMFix],1
.notmmx .notmmx
mov esi,[romdata] mov esi,[romdata]