static void reset(int hard)
{
reg = 0;
mmc3_reset(C_MMC3,sync,hard);
mem_unsetcpu8(6);
mem_setwritefunc(6,write67);
mem_setwritefunc(7,write67);
}
static void reset(int revision)
{
int i;
switch(revision) {
default:
case B_KONAMI_VRC2A: map = vrc2a_map; break;
case B_KONAMI_VRC2B: map = vrc2b_map; break;
case B_KONAMI_VRC2C: map = vrc2c_map; break;
}
mem_setreadfunc(6,read_latch);
mem_setwritefunc(6,write_latch);
for(i=8;i<0x10;i++)
mem_setwritefunc(i,write);
for(i=0;i<8;i++) {
prg[i & 1] = 0;
chr[i] = 0;
}
mirror = 0;
sync();
}
static void genie_write(u32 addr,u8 data)
{
if(addr >= 0x8000) {
switch(addr) {
case 0x8000:
if((data & 1) == 0) {
//unmap the write function
mem_setwritefunc(8,0);
//we not using genie anymore
reg &= 0x7F;
//save old read func
readcpu = cpu_getreadfunc();
//setup new read function
cpu_setreadfunc(genie_read_cheat);
//restore the old mapper
nes->mapper = mapper_init(nes->cart->mapperid);
//reset the mapper
nes->mapper->reset(1);
}
else {
reg = 0x80 | (data & 0x7E);
log_printf("genie_write: reg = $%02X (data = $%02X)\n",reg,data);
log_printf(" code 0: %s, %s\n",(reg & 0x10) ? "disabled" : "enabled",(reg & 2) ? "compare" : "no compare");
log_printf(" code 1: %s, %s\n",(reg & 0x20) ? "disabled" : "enabled",(reg & 4) ? "compare" : "no compare");
log_printf(" code 2: %s, %s\n",(reg & 0x40) ? "disabled" : "enabled",(reg & 8) ? "compare" : "no compare");
}
break;
case 0x8001: code[0].addr = (code[0].addr & 0x00FF) | (data << 8); break;
case 0x8002: code[0].addr = (code[0].addr & 0xFF00) | (data << 0); break;
case 0x8003: code[0].compare = data; break;
case 0x8004: code[0].data = data; break;
case 0x8005: code[1].addr = (code[1].addr & 0x00FF) | (data << 8); break;
case 0x8006: code[1].addr = (code[1].addr & 0xFF00) | (data << 0); break;
case 0x8007: code[1].compare = data; break;
case 0x8008: code[1].data = data; break;
case 0x8009: code[2].addr = (code[2].addr & 0x00FF) | (data << 8); break;
case 0x800A: code[2].addr = (code[2].addr & 0xFF00) | (data << 0); break;
case 0x800B: code[2].compare = data; break;
case 0x800C: code[2].data = data; break;
}
log_printf("genie write: $%04X = $%02X\n",addr,data);
}
}
static void reset(int hard)
{
int i;
mem_setwramsize(8);
for(i=8;i<16;i++)
mem_setwritefunc(i,write);
if(hard) {
for(i=0;i<8;i++) {
prg[i & 3] = 0;
chr[i] = 0;
}
mirror = 0;
irqenable = 0;
irqlatch = irqcounter = 0;
}
sync();
}
static void reset(int revision,int hard)
{
int i;
for(i=8;i<16;i++)
mem_setwritefunc(i,write);
if(revision == B_KONAMI_VRC6B) {
map = vrc6b_map;
mem_setwramsize(8);
mem_setwram8(0x6,0);
}
else
map = vrc6a_map;
prg[0] = 0;
prg[1] = (u8)-2;
for(i=0;i<8;i++)
chr[i] = 0;
mirror = 0;
irqlatch = 0;
irqcounter = 0;
irqcontrol = 0;
apu_setexternal(&vrc6);
sync();
}
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");
}
