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SetupROM port and some cleanup.

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This commit is contained in:
grinvader
2005-04-07 16:53:45 +00:00
parent 2da78e1866
commit c2af9fb265
12 changed files with 380 additions and 392 deletions
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307
zsnes/src/initc.c
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@@ -216,7 +216,7 @@ void CheckIntlEHi(unsigned char *ROM)
//Swap 4MB ROM with the other one
SwapData(romdata, romdata+((NumofBytes-0x400000)/4), 0x100000);
//Deinterleave the 4MB ROM first
NumofBanks = 128;
deintlv1();
@@ -252,7 +252,7 @@ void IntlEHi()
{
SwapData(romdata, romdata + 0x100000, 0x80000);
SwapData(romdata + 0x80000, romdata + 0x100000, 0x80000);
NumofBanks = 64;
intlv1();
NumofBanks = 192;
@@ -415,12 +415,12 @@ void chip_detect()
BSEnable = false;
SFXEnable = false;
SETAEnable = false;
//DSP Family
if (ROM[infoloc+TypeOffset] == 3)
{
if (ROM[infoloc+BankOffset] == 48)
{
{
DSP4Enable = true;
}
else
@@ -428,16 +428,16 @@ void chip_detect()
DSP1Enable = true;
}
return;
}
}
if (ROM[infoloc+TypeOffset] == 5)
{
CHIPBATT = true;
if (ROM[infoloc+BankOffset] == 32)
{
{
DSP2Enable = true;
}
else if (ROM[infoloc+BankOffset] == 48 && ROM[infoloc+CompanyOffset] == 0xB2) //Bandai
{
{
DSP3Enable = true;
}
else
@@ -454,26 +454,26 @@ void chip_detect()
SFXEnable = true;
return;
break;
case 0x1520: //GSU-x + Battery
case 0x1A20: //GSU-1 + Battery + Start in 21MHz
SFXEnable = true;
CHIPBATT = true;
CHIPBATT = true;
return;
break;
case 0x2530:
OBCEnable = true;
CHIPBATT = true;
return;
break;
case 0x3423:
SA1Enable = true;
return;
break;
case 0x3523:
SA1Enable = true;
CHIPBATT = true;
@@ -487,38 +487,38 @@ void chip_detect()
case 0x4532:
SDD1Enable = true;
CHIPBATT = true;
CHIPBATT = true;
return;
break;
case 0x5535:
RTCEnable = true;
CHIPBATT = true;
return;
break;
case 0xE320:
SGBEnable = true;
return;
break;
case 0xF320:
case 0xF320:
C4Enable = true;
return;
break;
case 0xF530:
case 0xF530:
ST18Enable = true;
CHIPBATT = true; //Check later if this should be removed
CHIPBATT = true; //Check later if this should be removed
return;
break;
case 0xF53A:
SPC7110Enable = true;
CHIPBATT = true;
return;
break;
case 0xF630:
SETAEnable = true;
CHIPBATT = true;
@@ -527,7 +527,7 @@ void chip_detect()
case 0xF93A:
SPC7110Enable = true;
RTCEnable = true;
RTCEnable = true;
CHIPBATT = true;
return;
break;
@@ -679,7 +679,7 @@ char *lastROMFileName;
void DumpROMLoadInfo()
{
FILE *fp = 0;
if (RomInfo) //rominfo.txt info dumping enabled?
{
fp = fopen("rominfo.txt", "w");
@@ -740,7 +740,7 @@ void loadFile(char *filename)
curromspace += stat_results.st_size;
if (!multifile) { return; }
(*incrementer)++;
}
else
@@ -768,16 +768,16 @@ void loadGZipFile(char *filename)
if ((unsigned int)size > maxromspace+512) { return; }
//Open GZip file for decompression
GZipFile = gzopen(filename, "rb");
GZipFile = gzopen(filename, "rb");
//Decompress file into memory
err = gzread(GZipFile, romdata, size);
err = gzread(GZipFile, romdata, size);
//Close compressed file
gzclose(GZipFile);
if (err != size) { return; }
curromspace = size;
}
@@ -791,7 +791,7 @@ void loadZipFile(char *filename)
{
int err, fileSize;
unsigned char *ROM = (unsigned char *)romdata;
bool multifile = false, NSS = false;
bool multifile = false, NSS = false;
char *incrementer = 0;
unzFile zipfile = unzOpen(filename); //Open zip file
@@ -799,11 +799,11 @@ void loadZipFile(char *filename)
unz_file_info cFileInfo; //Create variable to hold info for a compressed file
int LargestGoodFile = 0; //To keep track of largest file
//Variables for the file we pick
char ourFile[256];
ourFile[0] = '\n';
while(cFile == UNZ_OK) //While not at end of compressed file list
{
//Temporary char array for file name
@@ -825,13 +825,13 @@ void loadZipFile(char *filename)
incrementer = ourFile+strlen(ourFile)-1;
multifile = true;
break;
}
}
}
//Find Nintendo Super System ROMs
if (strlen(cFileName) >= 5) //Char + ".IC2"
{
char *ext = cFileName+strlen(cFileName)-4;
char *ext = cFileName+strlen(cFileName)-4;
if (!strncasecmp(ext, ".IC", 3))
{
strcpy(ourFile, cFileName);
@@ -848,12 +848,12 @@ void loadZipFile(char *filename)
{
strcpy(ourFile, cFileName);
LargestGoodFile = fileSize;
}
}
//Go to next file in zip file
cFile = unzGoToNextFile(zipfile);
//Go to next file in zip file
cFile = unzGoToNextFile(zipfile);
}
//No files found
if (ourFile[0] == '\n')
{
@@ -883,14 +883,14 @@ void loadZipFile(char *filename)
//Too big?
if (curromspace + fileSize > maxromspace+512)
{
{
unzClose(zipfile);
return;
}
//Open file
unzOpenCurrentFile(zipfile);
//Read file into memory
err = unzReadCurrentFile(zipfile, ROM+curromspace, fileSize);
@@ -899,7 +899,7 @@ void loadZipFile(char *filename)
//Encountered error?
if (err != fileSize)
{
{
unzClose(zipfile);
return;
}
@@ -920,7 +920,7 @@ void loadZipFile(char *filename)
}
if (!multifile)
{
{
unzClose(zipfile);
return;
}
@@ -934,7 +934,7 @@ void SplitSetup(char *basepath, char *basefile, unsigned int MirrorSystem)
curromspace = 0;
if (maxromspace < addOnStart+addOnSize) { return; }
memcpy(ROM+addOnStart, ROM, addOnSize);
memcpy(ROM+addOnStart, ROM, addOnSize);
if (*basepath == 0)
{
@@ -974,19 +974,19 @@ void SplitSetup(char *basepath, char *basefile, unsigned int MirrorSystem)
case 1:
memcpy(ROM+0x100000, ROM, 0x100000); //Mirror 8 to 16
break;
case 2:
case 2:
memcpy(ROM+0x180000, ROM+0x100000, 0x80000); //Mirrors 12 to 16
memcpy(ROM+0x200000, ROM+0x400000, 0x80000); //Copy base over
memset(ROM+0x280000, 0, 0x180000); //Blank out rest
break;
case 3:
memcpy(ROM+0x40000, ROM, 0x40000);
memcpy(ROM+0x80000, ROM, 0x80000);
break;
}
curromspace = addOnStart+addOnSize;
SplittedROM = true;
}
@@ -998,7 +998,7 @@ void SplitSupport()
{
unsigned char *ROM = (unsigned char *)romdata;
SplittedROM = false;
//Same Game add on
if (ROM[Hi+CompanyOffset] == 0x33 && curromspace == 0x80000 &&
!ROM[Hi+BankOffset] && !ROM[Hi+BSMonthOffset] && !ROM[Hi+BSDayOffset])
@@ -1006,9 +1006,9 @@ void SplitSupport()
addOnStart = 0x200000;
addOnSize = 0x80000;
SplitSetup(SGPath, "SAMEGAME.ZIP", 1);
}
}
//SD Gundam G-Next add on
//SD Gundam G-Next add on
if (ROM[Lo+CompanyOffset] == 0x33 && curromspace == 0x80000 &&
!ROM[Lo+BankOffset] && !ROM[Lo+BSMonthOffset] && !ROM[Lo+BSDayOffset] && !strncmp(ROM+Lo, "GNEXT", 5))
{
@@ -1016,7 +1016,7 @@ void SplitSupport()
addOnSize = 0x80000;
SplitSetup(GNextPath, "G-NEXT.ZIP", 2);
addOnStart = 0x200000;
}
}
//Sufami Turbo
if (!strncmp(ROM, "BANDAI SFC-ADX", 14))
@@ -1024,7 +1024,7 @@ void SplitSupport()
addOnStart = 0x100000;
addOnSize = curromspace;
SplitSetup(STPath, "STBIOS.ZIP", 3);
}
}
}
bool NSRTHead(unsigned char *ROM)
@@ -1038,9 +1038,9 @@ bool NSRTHead(unsigned char *ROM)
(NSRTHead[0] & 0x0F) > 13 ||
((NSRTHead[0] & 0xF0) >> 4) > 3 ||
((NSRTHead[0] & 0xF0) >> 4) == 0)
{
{
return(false); //Corrupt
}
}
return(true); //NSRT header
}
return(false); //None
@@ -1122,7 +1122,7 @@ void loadROM()
case 512:
Header512 = true;
break;
default:
{
unsigned char *ROM = (unsigned char *)romdata;
@@ -1149,7 +1149,7 @@ void loadROM()
}
}
snesmouse = 0;
snesmouse = 0;
input1gp = true;
input1mouse = true;
input2gp = true;
@@ -1158,11 +1158,11 @@ void loadROM()
input2just = true;
if (Header512)
{
{
unsigned char *ROM = (unsigned char *)romdata;
if (NSRTHead(ROM))
{
switch (ROM[0x1ED])
switch (ROM[0x1ED])
{
default: break;
@@ -1179,7 +1179,7 @@ void loadROM()
input2scope = false;
input2just = false;
input1mouse = false;
break;
break;
case 0x03: //Super Scope port 2
snesmouse = 3;
@@ -1248,7 +1248,7 @@ void loadROM()
}
}
curromspace -= 512;
memmove((unsigned char *)romdata, ((unsigned char *)romdata)+512, curromspace);
memmove((unsigned char *)romdata, ((unsigned char *)romdata)+512, curromspace);
}
snesinputdefault = snesmouse;
@@ -1854,7 +1854,6 @@ extern unsigned int spcnumread, spchalted;
extern unsigned char NextLineCache, sramsavedis, sndrot, regsbackup[3019];
extern unsigned char yesoutofmemory, fnames[512];
void SetupROM();
void initsnes();
void outofmemfix();
void GUIDoReset();
@@ -1876,34 +1875,6 @@ bool loadSRAM(char *sramname)
else { return(false); }
}
void powercycle(bool sramload)
{
memset(sram, 0xFF, 32768);
clearSPCRAM();
nmiprevaddrl = 0;
nmiprevaddrh = 0;
nmirept = 0;
nmiprevline = 224;
nmistatus = 0;
spcnumread = 0;
spchalted = ~0;
NextLineCache = 0;
curexecstate = 1;
if (sramload) { loadSRAM(fnames+1); }
asm_call(SetupROM);
asm_call(initsnes);
sramsavedis = 0;
memcpy(&sndrot, regsbackup, 3019);
if (yesoutofmemory == 1) { asm_call(outofmemfix); }
asm_call(GUIDoReset);
}
extern unsigned int Voice0Freq, Voice1Freq, Voice2Freq, Voice3Freq;
extern unsigned int Voice4Freq, Voice5Freq, Voice6Freq, Voice7Freq;
extern unsigned int dspPAdj;
@@ -1932,13 +1903,16 @@ void initpitch()
extern unsigned int SfxR1, SfxR2, SetaCmdEnable, SfxSFR, SfxSCMR;
extern unsigned char lorommapmode2, disablespcclr, *sfxramdata, SramExists;
extern unsigned char *setaramdata, *wramdata, *SA1RAMArea;
extern unsigned char *setaramdata, *wramdata, *SA1RAMArea, cbitmode, curromsize;
extern unsigned char ForcePal, ForceROMTiming, romispal;
extern unsigned short totlines;
void SetAddressingModes(), GenerateBank0Table();
void SetAddressingModesSA1(), GenerateBank0TableSA1();
void calculate_state_sizes(), InitRewindVars();
void InitDSP(), InitDSP2(), InitDSP4(), InitFxTables(), initregr(), initregw();
void SPC7110Load();
void SPC7110Load(), DOSClearScreen(), dosmakepal();
void CheckROMTypeC()
void CheckROMType()
{
unsigned char *ROM = (unsigned char *)romdata;
@@ -1947,7 +1921,7 @@ void CheckROMTypeC()
lorommapmode2 = 0;
if (!strncmp(ROM+0x207FC0, "DERBY STALLION 96", 17) || !strncmp(ROM+Lo, "SOUND NOVEL-TCOOL", 17))
{
{
lorommapmode2 = 1;
}
@@ -1968,7 +1942,11 @@ void CheckROMTypeC()
if (DSP1Enable || DSP2Enable || DSP3Enable)
{
if (DSP2Enable) { asm_call(InitDSP2); }
if (DSP2Enable)
{
asm_call(InitDSP2);
}
InitDSP();
DSP1Type = (romtype == 2) ? 2 : 1;
@@ -1983,7 +1961,7 @@ void CheckROMTypeC()
}
if (SFXEnable)
{
{
// Setup SuperFX stuff
if (Sup48mbit)
{
@@ -1992,10 +1970,10 @@ void CheckROMTypeC()
map_mem(0x71, &sfxbankb, 1);
map_mem(0x72, &sfxbankc, 1);
map_mem(0x73, &sfxbankd, 1);
//SRAM mapping, banks 78 - 79
map_mem(0x78, &sramsbank, 2);
SfxR1 = 0;
SfxR2 = 0;
memset(sfxramdata, 0, 262144); // clear 256kB SFX ram
@@ -2016,11 +1994,11 @@ void CheckROMTypeC()
if (SETAEnable)
{
// Setup SETA 010/011 stuff
// Really banks 68h-6Fh:0000-7FFF are all mapped the same by the chip but
// F1 ROC II only uses bank 68h
map_mem(0x68, &setabank, 1);
// Control register (and some status?) is in banks 60h-67h:0000-3FFF
map_mem(0x60, &setabanka, 1);
@@ -2029,7 +2007,7 @@ void CheckROMTypeC()
// proper SETA sram area
if (SramExists)
{
{
memcpy(setaramdata, sram, 4096);
}
}
@@ -2059,7 +2037,7 @@ void CheckROMTypeC()
map_mem(0x30, &dsp1bank, 0x10);
map_mem(0xB0, &dsp1bank, 0x10);
map_mem(0xE0, &dsp1bank, 0x10);
if (DSP2Enable)
{
map_mem(0x3F, &dsp2bank, 1);
@@ -2071,7 +2049,124 @@ void CheckROMTypeC()
asm_call(SPC7110Load);
}
void SetupROMc()
{
CheckROMTypeC();
extern unsigned short copv, brkv, abortv, nmiv, nmiv2, irqv, irqv2, resetv;
extern unsigned short copv8, brkv8, abortv8, nmiv8, irqv8;
void SetIRQVectors()
{ // get vectors (NMI & reset)
unsigned char *ROM = (unsigned char *)romdata;
if (!(ROM[infoloc+21] & 0xF0)) // if not fastrom
{
opexec358 = opexec268;
opexec358cph = opexec268cph;
cycpb358 = cycpb268;
}
if (!memcmp(ROM+infoloc+36+24, "\0xFF\0xFF", 2)) // if reset error
{
memcpy(ROM+infoloc+36+6, "\0x9C\0xFF", 2);
memcpy(ROM+infoloc+36+24, "\0x80\0xFF", 2);
}
memcpy(&copv, ROM+infoloc+0x24, 2);
memcpy(&brkv, ROM+infoloc+0x26, 2);
memcpy(&abortv, ROM+infoloc+0x28, 2);
memcpy(&nmiv, ROM+infoloc+0x2A, 2);
memcpy(&nmiv2, ROM+infoloc+0x2A, 2);
memcpy(&irqv, ROM+infoloc+0x2E, 2);
memcpy(&irqv2, ROM+infoloc+0x2E, 2);
// 8-bit and reset
memcpy(&copv8, ROM+infoloc+0x34, 2);
memcpy(&abortv8, ROM+infoloc+0x38, 2);
memcpy(&nmiv8, ROM+infoloc+0x3A, 2);
memcpy(&resetv, ROM+infoloc+0x3C, 2);
memcpy(&brkv8, ROM+infoloc+0x3E, 2);
memcpy(&irqv8, ROM+infoloc+0x3E, 2);
if (yesoutofmemory) // failed ?
{
resetv = 0x8000;
memcpy(ROM+0x0000, "\0x80\0xFE", 2);
memcpy(ROM+0x8000, "\0x80\0xFE", 2);
}
}
void SetupROM()
{
unsigned char *ROM = (unsigned char *)romdata;
CheckROMType();
SetIRQVectors();
#ifdef __MSDOS__
asm_call(DOSClearScreen);
if (!cbitmode) // 8-bit mode uses a palette
{
asm_call(dosmakepal);
}
#endif
// get ROM and SRAM sizes
curromsize = ROM[infoloc+0x17];
SetupSramSize();
calculate_state_sizes();
InitRewindVars();
// get timing (pal/ntsc)
ForcePal = ForceROMTiming;
switch (ForcePal)
{
case 1:
romispal = 0;
break;
case 2:
romispal = (!BSEnable);
break;
default:
romispal = ((!BSEnable) && (ROM[infoloc+0x19] > 1) && (ROM[infoloc+0x19] < 0xD));
}
if (romispal)
{
totlines = 314;
MsgCount = 100;
}
else
{
totlines = 263;
MsgCount = 120;
}
}
void powercycle(bool sramload)
{
memset(sram, 0xFF, 32768);
clearSPCRAM();
nmiprevaddrl = 0;
nmiprevaddrh = 0;
nmirept = 0;
nmiprevline = 224;
nmistatus = 0;
spcnumread = 0;
spchalted = ~0;
NextLineCache = 0;
curexecstate = 1;
if (sramload) { loadSRAM(fnames+1); }
SetupROM();
asm_call(initsnes);
sramsavedis = 0;
memcpy(&sndrot, regsbackup, 3019);
if (yesoutofmemory == 1) { asm_call(outofmemfix); }
asm_call(GUIDoReset);
}