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mapper 253 final fix lol

This commit is contained in:
CaH4e3 2009-11-08 15:53:48 +00:00
parent f0e8f17cc5
commit 6dbd108ea0
1 changed files with 16 additions and 5 deletions
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21
src/boards/253.cpp
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@ -1,7 +1,7 @@
/* FCE Ultra - NES/Famicom Emulator /* FCE Ultra - NES/Famicom Emulator
* *
* Copyright notice for this file: * Copyright notice for this file:
* Copyright (C) 2009 CaH4e3, qeed * Copyright (C) 2009 CaH4e3
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
@ -20,7 +20,7 @@
#include "mapinc.h" #include "mapinc.h"
static uint8 chrlo[8], chrhi[8], prg[2], mirr; static uint8 chrlo[8], chrhi[8], prg[2], mirr, vlock;
static int32 IRQa, IRQCount, IRQLatch, IRQClock; static int32 IRQa, IRQCount, IRQLatch, IRQClock;
static uint8 *WRAM=NULL; static uint8 *WRAM=NULL;
static uint32 WRAMSIZE; static uint32 WRAMSIZE;
@ -33,6 +33,7 @@ static SFORMAT StateRegs[]=
{chrhi, 8, "CHRHI"}, {chrhi, 8, "CHRHI"},
{prg, 2, "PRGR"}, {prg, 2, "PRGR"},
{&mirr, 1, "MIRR"}, {&mirr, 1, "MIRR"},
{&vlock, 1, "VLOCK"},
{&IRQa, 4, "IRQA"}, {&IRQa, 4, "IRQA"},
{&IRQCount, 4, "IRQC"}, {&IRQCount, 4, "IRQC"},
{&IRQLatch, 4, "IRQL"}, {&IRQLatch, 4, "IRQL"},
@ -51,7 +52,17 @@ static void Sync(void)
for(i=0; i<8; i++) for(i=0; i<8; i++)
{ {
uint32 chr = chrlo[i]|(chrhi[i]<<8); uint32 chr = chrlo[i]|(chrhi[i]<<8);
if ((chrlo[i]==4)||(chrlo[i]==5)) // [ES-1064] Qi Long Zhu (C) if(chrlo[i]==0xc8)
{
vlock = 0;
continue;
}
else if(chrlo[i]==0x88)
{
vlock = 1;
continue;
}
if(((chrlo[i]==4)||(chrlo[i]==5))&&!vlock)
setchr1r(0x10,i<<10,chr&1); setchr1r(0x10,i<<10,chr&1);
else else
setchr1(i<<10,chr); setchr1(i<<10,chr);
@ -72,7 +83,7 @@ static DECLFW(M253Write)
uint8 ind=((((A&8)|(A>>8))>>3)+2)&7; uint8 ind=((((A&8)|(A>>8))>>3)+2)&7;
uint8 sar=A&4; uint8 sar=A&4;
chrlo[ind]=(chrlo[ind]&(0xF0>>sar))|((V&0x0F)<<sar); chrlo[ind]=(chrlo[ind]&(0xF0>>sar))|((V&0x0F)<<sar);
if(sar) if(A&4)
chrhi[ind]=V>>4; chrhi[ind]=V>>4;
Sync(); Sync();
} }
@ -124,7 +135,7 @@ static void M253IRQ(int cycles)
if(IRQCount==0xFF) if(IRQCount==0xFF)
{ {
IRQCount = IRQLatch; IRQCount = IRQLatch;
IRQa = (IRQa&2)|((IRQa&0x01)<<1); IRQa = IRQa|((IRQa&1)<<1);
X6502_IRQBegin(FCEU_IQEXT); X6502_IRQBegin(FCEU_IQEXT);
} }
else else