/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
- * Copyright (C) 2002 Ben Parnell
+ * Copyright (C) 2002 Xodnizel
*
* 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
#include <string.h>
#include <stdlib.h>
-#include <stdio.h> /* For GG loading code. */
+#include <stdio.h>
+
+#ifdef GP2X
+#include <unistd.h> // for sync()
+#endif
#include "types.h"
-#include "version.h"
#include "fce.h"
+#include "ppu.h"
+#include "ppu098.h"
+
#include "cart.h"
#include "memory.h"
+#include "x6502.h"
#include "general.h"
+
#include "svga.h"
+#include "file.h"
-/*
+/*
This file contains all code for coordinating the mapping in of the
address space external to the NES.
It's also (ab)used by the NSF code.
uint8 *MMC5SPRVPage[8];
uint8 *MMC5BGVPage[8];
-/* 16 are (sort of) reserved for UNIF/iNES and 16 to map other stuff. */
+static uint8 PRGIsRAM[32]; /* This page is/is not PRG RAM. */
+/* 16 are (sort of) reserved for UNIF/iNES and 16 to map other stuff. */
static int CHRram[32];
static int PRGram[32];
uint32 genieaddr[3];
-static INLINE void setpageptr(int s, uint32 A, uint8 *p)
+static INLINE void setpageptr(int s, uint32 A, uint8 *p, int ram)
{
uint32 AB=A>>11;
int x;
- for(x=(s>>1)-1;x>=0;x--)
- Page[AB+x]=p-A;
+ if(p)
+ for(x=(s>>1)-1;x>=0;x--)
+ {
+ PRGIsRAM[AB+x]=ram;
+ Page[AB+x]=p-A;
+ }
+ else
+ for(x=(s>>1)-1;x>=0;x--)
+ {
+ PRGIsRAM[AB+x]=0;
+ Page[AB+x]=0;
+ }
}
-static char nothing[8192];
+static uint8 nothing[8192];
void ResetCartMapping(void)
{
int x;
for(x=0;x<32;x++)
{
- Page[x]=(uint8 *)(nothing-x*2048);
+ Page[x]=nothing-x*2048;
PRGptr[x]=CHRptr[x]=0;
PRGsize[x]=CHRsize[x]=0;
}
for(x=0;x<8;x++)
{
- MMC5SPRVPage[x]=MMC5BGVPage[x]=VPageR[x]=(uint8 *)(nothing-0x400*x);
+ MMC5SPRVPage[x]=MMC5BGVPage[x]=VPageR[x]=nothing-0x400*x;
}
}
PRGmask4[chip]=(size>>12)-1;
PRGmask8[chip]=(size>>13)-1;
PRGmask16[chip]=(size>>14)-1;
- PRGmask32[chip]=(size>>15)-1;
+ PRGmask32[chip]=(size>>15)-1;
PRGram[chip]=ram?1:0;
}
return Page[A>>11][A];
}
-void FASTAPASS(3) GINLINE setprg2r(int r, unsigned int A, unsigned int V)
+DECLFW(CartBW)
{
- if(!PRGptr[r]) return;
- V&=PRGmask2[r];
+ //printf("Ok: %04x:%02x, %d\n",A,V,PRGIsRAM[A>>11]);
+ if(PRGIsRAM[A>>11] && Page[A>>11])
+ Page[A>>11][A]=V;
+}
- setpageptr(2,A,(&PRGptr[r][V<<11]));
+DECLFR(CartBROB)
+{
+ if(!Page[A>>11]) return(X.DB);
+ return Page[A>>11][A];
+}
+
+void FASTAPASS(3) setprg2r(int r, unsigned int A, unsigned int V)
+{
+ V&=PRGmask2[r];
+ setpageptr(2,A,PRGptr[r]?(&PRGptr[r][V<<11]):0,PRGram[r]);
+ X6502_Rebase();
}
void FASTAPASS(2) setprg2(uint32 A, uint32 V)
setprg2r(0,A,V);
}
-void FASTAPASS(3) GINLINE setprg4r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setprg4r(int r, unsigned int A, unsigned int V)
{
- if(!PRGptr[r]) return;
V&=PRGmask4[r];
- setpageptr(4,A,(&PRGptr[r][V<<12]));
+ setpageptr(4,A,PRGptr[r]?(&PRGptr[r][V<<12]):0,PRGram[r]);
+ X6502_Rebase();
}
void FASTAPASS(2) setprg4(uint32 A, uint32 V)
setprg4r(0,A,V);
}
-void FASTAPASS(3) GINLINE setprg8r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setprg8r(int r, unsigned int A, unsigned int V)
{
- if(!PRGptr[r]) return;
-
if(PRGsize[r]>=8192)
{
V&=PRGmask8[r];
- setpageptr(8,A,(&PRGptr[r][V<<13]));
+ setpageptr(8,A,PRGptr[r]?(&PRGptr[r][V<<13]):0,PRGram[r]);
}
else
{
uint32 VA=V<<2;
int x;
for(x=0;x<4;x++)
- setpageptr(2,A+(x<<11),(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]));
+ setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]);
}
+ X6502_Rebase();
}
void FASTAPASS(2) setprg8(uint32 A, uint32 V)
setprg8r(0,A,V);
}
-void FASTAPASS(3) GINLINE setprg16r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setprg16r(int r, unsigned int A, unsigned int V)
{
- if(!PRGptr[r]) return;
-
if(PRGsize[r]>=16384)
{
V&=PRGmask16[r];
- setpageptr(16,A,(&PRGptr[r][V<<14]));
+ setpageptr(16,A,PRGptr[r]?(&PRGptr[r][V<<14]):0,PRGram[r]);
}
else
{
int x;
for(x=0;x<8;x++)
- setpageptr(2,A+(x<<11),(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]));
+ setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]);
}
+ X6502_Rebase();
}
void FASTAPASS(2) setprg16(uint32 A, uint32 V)
setprg16r(0,A,V);
}
-void FASTAPASS(3) GINLINE setprg32r(int r,unsigned int A, unsigned int V)
+void FASTAPASS(3) setprg32r(int r,unsigned int A, unsigned int V)
{
- if(!PRGptr[r]) return;
if(PRGsize[r]>=32768)
{
V&=PRGmask32[r];
- setpageptr(32,A,(&PRGptr[r][V<<15]));
+ setpageptr(32,A,PRGptr[r]?(&PRGptr[r][V<<15]):0,PRGram[r]);
}
else
{
int x;
for(x=0;x<16;x++)
- setpageptr(2,A+(x<<11),(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]));
+ setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]);
}
+ X6502_Rebase();
}
void FASTAPASS(2) setprg32(uint32 A, uint32 V)
setprg32r(0,A,V);
}
-void GINLINE FASTAPASS(3) setchr1r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setchr1r(int r, unsigned int A, unsigned int V)
{
if(!CHRptr[r]) return;
+ FCEUPPU_LineUpdate();
V&=CHRmask1[r];
if(CHRram[r])
PPUCHRRAM|=(1<<(A>>10));
VPageR[(A)>>10]=&CHRptr[r][(V)<<10]-(A);
}
-void GINLINE FASTAPASS(3) setchr2r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setchr2r(int r, unsigned int A, unsigned int V)
{
if(!CHRptr[r]) return;
+ FCEUPPU_LineUpdate();
V&=CHRmask2[r];
VPageR[(A)>>10]=VPageR[((A)>>10)+1]=&CHRptr[r][(V)<<11]-(A);
if(CHRram[r])
PPUCHRRAM&=~(3<<(A>>10));
}
-void GINLINE FASTAPASS(3) setchr4r(int r, unsigned int A, unsigned int V)
+void FASTAPASS(3) setchr4r(int r, unsigned int A, unsigned int V)
{
if(!CHRptr[r]) return;
+ FCEUPPU_LineUpdate();
V&=CHRmask4[r];
VPageR[(A)>>10]=VPageR[((A)>>10)+1]=
VPageR[((A)>>10)+2]=VPageR[((A)>>10)+3]=&CHRptr[r][(V)<<12]-(A);
PPUCHRRAM&=~(15<<(A>>10));
}
-void GINLINE FASTAPASS(2) setchr8r(int r, unsigned int V)
+void FASTAPASS(2) setchr8r(int r, unsigned int V)
{
int x;
if(!CHRptr[r]) return;
+ FCEUPPU_LineUpdate();
V&=CHRmask8[r];
for(x=7;x>=0;x--)
VPageR[x]=&CHRptr[r][V<<13];
if(CHRram[r])
PPUCHRRAM|=(255);
else
- PPUCHRRAM&=~(255);
+ PPUCHRRAM&=0;
}
void FASTAPASS(2) setchr1(unsigned int A, unsigned int V)
setchr4r(0,A,V);
}
-void FASTAPASS(2) setchr8(unsigned int V)
+void FASTAPASS(1) setchr8(unsigned int V)
{
setchr8r(0,V);
}
void FASTAPASS(3) setvramb1(uint8 *p, uint32 A, uint32 b)
{
+ FCEUPPU_LineUpdate();
VPageR[A>>10]=p-A+(b<<10);
PPUCHRRAM|=(1<<(A>>10));
}
void FASTAPASS(3) setvramb2(uint8 *p, uint32 A, uint32 b)
{
+ FCEUPPU_LineUpdate();
VPageR[(A>>10)]=VPageR[(A>>10)+1]=p-A+(b<<11);
PPUCHRRAM|=(3<<(A>>10));
}
{
int x;
+ FCEUPPU_LineUpdate();
for(x=3;x>=0;x--)
VPageR[(A>>10)+x]=p-A+(b<<12);
PPUCHRRAM|=(15<<(A>>10));
{
int x;
+ FCEUPPU_LineUpdate();
for(x=7;x>=0;x--)
VPageR[x]=p+(b<<13);
PPUCHRRAM|=255;
void FASTAPASS(3) setntamem(uint8 *p, int ram, uint32 b)
{
+ FCEUPPU_LineUpdate();
vnapage[b]=p;
PPUNTARAM&=~(1<<b);
if(ram)
static int mirrorhard=0;
void setmirrorw(int a, int b, int c, int d)
{
+ FCEUPPU_LineUpdate();
vnapage[0]=NTARAM+a*0x400;
vnapage[1]=NTARAM+b*0x400;
vnapage[2]=NTARAM+c*0x400;
void FASTAPASS(1) setmirror(int t)
{
+ FCEUPPU_LineUpdate();
if(!mirrorhard)
{
switch(t)
void SetupCartMirroring(int m, int hard, uint8 *extra)
{
if(m<4)
+ {
+ mirrorhard = 0;
setmirror(m);
+ }
else
{
vnapage[0]=NTARAM;
if(!GENIEROM)
{
- if(!(GENIEROM=FCEU_malloc(4096+1024))) return;
+ char *fn;
+
+ if(!(GENIEROM=(uint8 *)FCEU_malloc(4096+1024))) return;
- if(!(fp=fopen(FCEU_MakeFName(FCEUMKF_GGROM,0,0),"rb")))
+ fn=FCEU_MakeFName(FCEUMKF_GGROM,0,0);
+ fp=fopen(fn,"rb");
+ free(fn);
+ if(!fp)
{
FCEU_PrintError("Error opening Game Genie ROM image!");
free(GENIEROM);
fclose(fp);
return;
}
- if(GENIEROM[0]==0x4E) /* iNES ROM image */
+ if(GENIEROM[0]==0x4E) /* iNES ROM image */
{
if(fread(GENIEROM,1,4096,fp)!=4096)
goto grerr;
goto grerr;
}
fclose(fp);
-
+
/* Workaround for the FCE Ultra CHR page size only being 1KB */
for(x=0;x<4;x++)
memcpy(GENIEROM+4096+(x<<8),GENIEROM+4096,256);
VPageR=VPage;
}
+void FCEU_KillGenie(void)
+{
+ if(GENIEROM)
+ {
+ free(GENIEROM);
+ GENIEROM=0;
+ }
+}
+
static DECLFR(GenieRead)
{
return GENIEROM[A&4095];
case 0x8001:genieaddr[((A-1)&0xF)>>2]&=0xFF;genieaddr[((A-1)&0xF)>>2]|=(V|0x80)<<8;break;
case 0x8000:if(!V)
- FixGenieMap();
- else
- {
- modcon=V^0xFF;
- if(V==0x71)
- modcon=0;
- }
- break;
+ FixGenieMap();
+ else
+ {
+ modcon=V^0xFF;
+ if(V==0x71)
+ modcon=0;
+ }
+ break;
}
}
{
uint8 r=GenieBackup[0](A);
- if((modcon>>1)&1) // No check
+ if((modcon>>1)&1) // No check
return genieval[0];
else if(r==geniech[0])
return genieval[0];
{
uint8 r=GenieBackup[1](A);
- if((modcon>>2)&1) // No check
+ if((modcon>>2)&1) // No check
return genieval[1];
else if(r==geniech[1])
return genieval[1];
{
uint8 r=GenieBackup[2](A);
- if((modcon>>3)&1) // No check
+ if((modcon>>3)&1) // No check
return genieval[2];
else if(r==geniech[2])
return genieval[2];
VPageR=VPage;
FlushGenieRW();
-
+ //printf("Rightyo\n");
for(x=0;x<3;x++)
if((modcon>>(4+x))&1)
{
geniestage=2;
}
+static uint8 *real_pages[16];
+
+void GenieSetPages(int restore)
+{
+ int page;
+ if (restore)
+ {
+ for (page=16; page<32; page++)
+ Page[page] = real_pages[page-16];
+ }
+ else
+ {
+ for (page=16; page<32; page++) {
+ real_pages[page-16] = Page[page];
+ Page[page]=GENIEROM - (page<<11) + ((page&1)<<11);
+ }
+ }
+}
+
+void FCEU_SaveGameSave(CartInfo *LocalHWInfo)
+{
+ if(LocalHWInfo->battery && LocalHWInfo->SaveGame[0])
+ {
+ FILE *sp;
+ char *soot;
+
+ soot=FCEU_MakeFName(FCEUMKF_SAV,0,"sav");
+ if((sp=FCEUD_UTF8fopen(soot,"wb"))==NULL)
+ {
+ FCEU_PrintError("WRAM file \"%s\" cannot be written to.\n",soot);
+ }
+ else
+ {
+ int x;
+
+ for(x=0;x<4;x++)
+ if(LocalHWInfo->SaveGame[x])
+ {
+ fwrite(LocalHWInfo->SaveGame[x],1,
+ LocalHWInfo->SaveGameLen[x],sp);
+ }
+ fclose(sp);
+#ifdef GP2X
+ sync();
+#endif
+ }
+ free(soot);
+ }
+}
+
+// hack, movie.c has to communicate with this function somehow
+int disableBatteryLoading=0;
+
+void FCEU_LoadGameSave(CartInfo *LocalHWInfo)
+{
+ if(LocalHWInfo->battery && LocalHWInfo->SaveGame[0] && !disableBatteryLoading)
+ {
+ FILE *sp;
+ char *soot;
+
+ soot=FCEU_MakeFName(FCEUMKF_SAV,0,"sav");
+ sp=FCEUD_UTF8fopen(soot,"rb");
+ if(sp!=NULL)
+ {
+ int x;
+ for(x=0;x<4;x++)
+ if(LocalHWInfo->SaveGame[x])
+ fread(LocalHWInfo->SaveGame[x],1,LocalHWInfo->SaveGameLen[x],sp);
+ fclose(sp);
+ }
+ free(soot);
+ }
+}
+
+void DumpEmptyCartMapping(void)
+{
+ int x, st=0, end=-1;
+
+ for(x=8;x<32;x++)
+ {
+ if (Page[x] == (nothing-x*2048) || Page[x] == 0)
+ {
+ if (end != x) st=x;
+ end=x+1;
+ }
+ if (end == x)
+ printf("DumpEmptyCartMapping: %04x-%04x\n", st*2048, end*2048-1);
+ }
+ if (end==32)
+ printf("DumpEmptyCartMapping: %04x-%04x\n", st*2048, end*2048-1);
+}
+
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