void nes_reset(int hard)
{
int i;
if(nes->rom == 0)
return;
//set default read/write handlers
for(i=0;i<16;i++) {
mem_setread(i,0);
mem_setwrite(i,0);
}
//set rom read handlers (mappers might use these)
for(i=8;i<16;i++)
mem_setread(i,nes_read_rom);
//ram
mem_setreadptr(0,nes->ram);
mem_setwriteptr(0,nes->ram);
mem_setreadptr(1,nes->ram);
mem_setwriteptr(1,nes->ram);
//ppu
mem_setread(2,ppu_read);
mem_setwrite(2,ppu_write);
mem_setread(3,ppu_read);
mem_setwrite(3,ppu_write);
//apu
mem_setread(4,nes_read_4000);
mem_setwrite(4,nes_write_4000);
//mapper will set its read/write handlers
nes->mapper->reset(hard);
nes->frame_irqmode = 0;
apu_reset(hard);
ppu_reset();
dead6502_reset();
if(hard) {
memset(nes->ram,0,0x800);
for(i=0;i<32;i++)
pal_write(i,startup_pal[i]);
}
log_message("nes reset ok\n");
}
static void reset(int hard)
{
mem_setwramsize(8);
//initialize all bank pointers
mem_setprg4(6,8);
mem_setwram4(7,0);
mem_setprg32(8,0);
mem_setchr8(0,0);
//get pointers to the data
prg6 = mem_getreadptr(6);
sram7 = mem_getreadptr(7);
//remove pointers to memory
mem_setreadptr(6,0);
mem_setreadptr(7,0);
mem_setwriteptr(7,0);
//insert the function pointers from here
mem_setreadfunc(6,read6);
mem_setreadfunc(7,read7);
mem_setwritefunc(7,write7);
}
void genie_reset(int hard)
{
int i;
//manually map in the prg and set write handlers
for(i=8;i<16;i++) {
mem_setreadptr(i,genierom);
mem_setwritefunc(8,genie_write);
}
//manually map the game genie chr/cache
for(i=0;i<8;i++) {
nes->ppu.readpages[i] = genierom + 0x1000;
nes->ppu.writepages[i] = 0;
nes->ppu.cachepages[i] = geniecache;
nes->ppu.cachepages_hflip[i] = geniecache;
}
//setup genie registers
memset(code,0,sizeof(codedata_t) * 3);
reg = 0x80;
log_printf("genie_reset: ok\n");
}
