int NSFLoad(int fp)
{
int x;
FCEU_fseek(fp,0,SEEK_SET);
FCEU_fread(&NSFHeader,1,0x80,fp);
if(memcmp(NSFHeader.ID,"NESM\x1a",5))
return 0;
NSFHeader.SongName[31]=NSFHeader.Artist[31]=NSFHeader.Copyright[31]=0;
LoadAddr=NSFHeader.LoadAddressLow;
LoadAddr|=NSFHeader.LoadAddressHigh<<8;
if(LoadAddr<0x6000)
{
FCEUD_PrintError("Invalid load address.");
return(0);
}
InitAddr=NSFHeader.InitAddressLow;
InitAddr|=NSFHeader.InitAddressHigh<<8;
PlayAddr=NSFHeader.PlayAddressLow;
PlayAddr|=NSFHeader.PlayAddressHigh<<8;
NSFSize=FCEU_fgetsize(fp)-0x80;
NSFMaxBank=((NSFSize+(LoadAddr&0xfff)+4095)/4096);
NSFMaxBank=uppow2(NSFMaxBank);
if(!(NSFDATA=(uint8 *)FCEU_malloc(NSFMaxBank*4096)))
return 0;
FCEU_fseek(fp,0x80,SEEK_SET);
memset(NSFDATA,0x00,NSFMaxBank*4096);
FCEU_fread(NSFDATA+(LoadAddr&0xfff),1,NSFSize,fp);
NSFMaxBank--;
BSon=0;
for(x=0;x<8;x++)
BSon|=NSFHeader.BankSwitch[x];
FCEUGameInfo.type=GIT_NSF;
FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=SI_GAMEPAD;
FCEUGameInfo.cspecial=SIS_NSF;
for(x=0;;x++)
{
if(NSFROM[x]==0x20)
{
NSFROM[x+1]=InitAddr&0xFF;
NSFROM[x+2]=InitAddr>>8;
NSFROM[x+8]=PlayAddr&0xFF;
NSFROM[x+9]=PlayAddr>>8;
break;
}
}
NSF_HEADER *FESTAI_Load(uint8 *buf, uint32 size)
{
int x;
memcpy(&NSFHeader,buf,0x80);
buf+=0x80;
if (memcmp(NSFHeader.ID,"NESM\x1a",5))
return 0;
NSFHeader.SongName[31]=NSFHeader.Artist[31]=NSFHeader.Copyright[31]=0;
LoadAddr=NSFHeader.LoadAddressLow;
LoadAddr|=NSFHeader.LoadAddressHigh<<8;
if(LoadAddr<0x6000)
return(0);
InitAddr=NSFHeader.InitAddressLow;
InitAddr|=NSFHeader.InitAddressHigh<<8;
PlayAddr=NSFHeader.PlayAddressLow;
PlayAddr|=NSFHeader.PlayAddressHigh<<8;
NSFSize=size-0x80;
NSFMaxBank=((NSFSize+(LoadAddr&0xfff)+4095)/4096);
NSFMaxBank=uppow2(NSFMaxBank);
if(!(NSFDATA=(uint8 *)malloc(NSFMaxBank*4096)))
return 0;
memset(NSFDATA,0x00,NSFMaxBank*4096);
memcpy(NSFDATA+(LoadAddr&0xfff),buf,NSFSize);
NSFMaxBank--;
BSon=0;
for(x=0;x<8;x++)
BSon|=NSFHeader.BankSwitch[x];
for(x=0;;x++)
{
if(NSFROM[x]==0x20)
{
NSFROM[x+1]=InitAddr&0xFF;
NSFROM[x+2]=InitAddr>>8;
NSFROM[x+8]=PlayAddr&0xFF;
NSFROM[x+9]=PlayAddr>>8;
break;
}
}
int NSFLoad(const char *name, FCEUFILE *fp)
{
int x;
fprintf(stderr,"NSFLoad ...\n");
FCEU_fseek(fp,0,SEEK_SET);
FCEU_fread(&NSFHeader,1,0x80,fp);
if(memcmp(NSFHeader.ID,"NESM\x1a",5))
return 0;
NSFHeader.SongName[31]=NSFHeader.Artist[31]=NSFHeader.Copyright[31]=0;
LoadAddr=NSFHeader.LoadAddressLow;
LoadAddr|=NSFHeader.LoadAddressHigh<<8;
if(LoadAddr<0x6000)
{
FCEUD_PrintError("Invalid load address.");
return(0);
}
InitAddr=NSFHeader.InitAddressLow;
InitAddr|=NSFHeader.InitAddressHigh<<8;
PlayAddr=NSFHeader.PlayAddressLow;
PlayAddr|=NSFHeader.PlayAddressHigh<<8;
NSFSize=FCEU_fgetsize(fp)-0x80;
NSFMaxBank=((NSFSize+(LoadAddr&0xfff)+4095)/4096);
NSFMaxBank=PRGsize[0]=uppow2(NSFMaxBank);
if(!(NSFDATA=(uint8 *)FCEU_malloc(NSFMaxBank*4096)))
return 0;
FCEU_fseek(fp,0x80,SEEK_SET);
memset(NSFDATA,0x00,NSFMaxBank*4096);
FCEU_fread(NSFDATA+(LoadAddr&0xfff),1,NSFSize,fp);
NSFMaxBank--;
BSon=0;
for(x=0;x<8;x++)
{
BSon|=NSFHeader.BankSwitch[x];
}
if(BSon==0)
{
BankCounter=0x00;
if ((NSFHeader.LoadAddressHigh & 0x70) >= 0x70)
{
//Ice Climber, and other F000 base address tunes need this
BSon=0xFF;
}
else {
for(x=(NSFHeader.LoadAddressHigh & 0x70) / 0x10;x<8;x++)
{
NSFHeader.BankSwitch[x]=BankCounter;
BankCounter+=0x01;
}
BSon=0;
}
}
for(x=0;x<8;x++)
BSon|=NSFHeader.BankSwitch[x];
GameInfo->type=GIT_NSF;
GameInfo->input[0]=GameInfo->input[1]=SI_GAMEPAD;
GameInfo->cspecial=SIS_NSF;
for(x=0;;x++)
{
if(NSFROM[x]==0x20)
{
NSFROM[x+1]=InitAddr&0xFF;
NSFROM[x+2]=InitAddr>>8;
NSFROM[x+8]=PlayAddr&0xFF;
NSFROM[x+9]=PlayAddr>>8;
break;
}
}
