// this is wrong
inline static void dec0YMxxxxIrqHandler(int, int nStatus)
{
if (nStatus) {
m6502SetIRQ(M6502_IRQ);
} else {
m6502SetIRQ(0);
}
}
static int DrvFrame()
{
if (DrvReset) {
DrvDoReset();
}
m6502Open(0);
m6502Run(4000000 / 60);
m6502SetIRQ(M6502_IRQ);
m6502Close();
if (pBurnSoundOut) {
int nSample;
int nSegmentLength = nBurnSoundLen;
short* pSoundBuf = pBurnSoundOut;
if (nSegmentLength) {
AY8910Update(0, &pAY8910Buffer[0], nSegmentLength);
for (int n = 0; n < nSegmentLength; n++) {
nSample = pAY8910Buffer[0][n];
nSample += pAY8910Buffer[1][n];
nSample += pAY8910Buffer[2][n];
nSample /= 4;
if (nSample < -32768) {
nSample = -32768;
} else {
if (nSample > 32767) {
nSample = 32767;
}
}
pSoundBuf[(n << 1) + 0] = nSample;
pSoundBuf[(n << 1) + 1] = nSample;
}
}
}
if (pBurnDraw) {
DrvDraw();
}
return 0;
}
void dec_ctrl_writeword(unsigned int a, unsigned short d)
{
switch (a)
{
case 0: // Playfield & Sprite priority
// dec0_priority_w(0,data,mem_mask);
dec_pri_reg=d;
printf("priority reg: %x,%x\n",a,d);
break;
case 2:// DMA flag
// dec0_update_sprites_w(0,0,mem_mask);
// printf("oh no, is dma: %x,%x\n",a,d);
break;
case 4: // 6502
robocopSoundLatch = d & 0xFF;
bprintf(PRINT_NORMAL, _T("sound code: %x\n"),d);
m6502SetIRQ(M6502_NMI);
break;
case 6:
printf("write to i8751 %x, %x\n",a,d);
baddudes_i8751_write(d);
SekSetIRQLine(5, SEK_IRQSTATUS_AUTO);
break;
case 8: //mame says int ack for vbl, but just ignores it???
VBL_ACK = false;
break;
case 0xa: // unknown
break;
case 0xc: // coin block?
break;
case 0xe: //reset i8751??
i8751_return=0;
break;
default:
printf("unknown dec_ctrl_writeword %x,%x\n",a,d);
}
}
