UINT8 parodius_main_read(UINT16 address)
{
switch (address)
{
case 0x3f8c:
return DrvInputs[0];
case 0x3f8d:
return DrvInputs[1];
case 0x3f8e:
return (DrvDips[2] & 0xf0) | (DrvInputs[2] & 0x0f);
case 0x3f8f:
return DrvDips[0];
case 0x3f90:
return DrvDips[1];
case 0x3fc0: // watchdog
return 0;
case 0x3fcc:
case 0x3fcd:
return K053260Read(0, (address & 1)+2);
}
if ((address & 0xf800) == 0x0000) {
if (nDrvRomBank[1] & 1) {
return DrvPalRAM[((nDrvRomBank[1] & 0x04) << 9) + address];
} else {
return DrvBankRAM[address];
}
}
if ((address & 0xfff0) == 0x3fa0) {
return K053244Read(0, address & 0x0f);
}
if ((address & 0xf800) == 0x2000) {
if (nDrvRomBank[1] & 0x02) {
return K053245Read(0, address & 0x7ff);
}
}
if (address >= 0x2000 && address <= 0x5fff) {
return K052109Read(address - 0x2000);
}
return 0;
}
unsigned char rollerg_main_read(unsigned short address)
{
switch (address)
{
case 0x0020: // watchdog
return 0;
case 0x0030:
case 0x0031:
return K053260Read(0, (address & 1)+2);
case 0x0050:
return DrvInputs[0];
case 0x0051:
return DrvInputs[1];
case 0x0052:
return (DrvInputs[2] & 0xf0) | (DrvDips[2] & 0x0f);
case 0x0053:
return DrvDips[0];
case 0x0060:
return DrvDips[1];
case 0x0061:
return 0x7f;
}
if ((address & 0xfff0) == 0x0300) {
return K053244Read(0, address & 0x0f);
}
if ((address & 0xf800) == 0x0800) {
if (readzoomroms)
return K051316ReadRom(0, address & 0x7ff);
else
return K051316Read(0, address & 0x7ff);
}
if ((address & 0xf800) == 0x1000) {
return K053245Read(0, address & 0x7ff);
}
return 0;
}
unsigned char __fastcall rollerg_sound_read(unsigned short address)
{
switch (address)
{
case 0xc000:
case 0xc001:
return BurnYM3812Read(address & 1);
}
if (address >= 0xa000 && address <= 0xa02f) {
// not sure...
if ((address & 0x3e) == 0x00) ZetSetIRQLine(0, ZET_IRQSTATUS_NONE);
return K053260Read(0, address & 0x3f);
}
return 0;
}
UINT8 __fastcall parodius_sound_read(UINT16 address)
{
switch (address)
{
case 0xf800:
return 0xff;
case 0xf801:
return BurnYM2151ReadStatus();
}
if (address >= 0xfc00 && address <= 0xfc2f) {
if ((address & 0x3e) == 0x00) ZetSetIRQLine(0, ZET_IRQSTATUS_NONE);
return K053260Read(0, address & 0x3f);
}
return 0;
}