void amiga_fdc::dma_check()
{
bool was_writing = dskbyt & 0x2000;
dskbyt &= 0x9fff;
if(dma_enabled()) {
if(dma_state == IDLE) {
dma_state = adkcon & 0x0400 ? DMA_WAIT_START : DMA_RUNNING_BYTE_0;
if(dma_state == DMA_RUNNING_BYTE_0) {
if(!(dsklen & 0x3fff))
dma_done();
else if(dsklen & 0x4000) {
dskbyt |= 0x2000;
cur_live.bit_counter = 0;
dma_value = dma_read();
}
}
} else {
dskbyt |= 0x4000;
if(dsklen & 0x4000)
dskbyt |= 0x2000;
}
} else
dma_state = IDLE;
if(was_writing && !(dskbyt & 0x2000))
cur_live.pll.stop_writing(floppy, cur_live.tm);
if(!was_writing && (dskbyt & 0x2000))
cur_live.pll.start_writing(cur_live.tm);
}
void amiga_fdc::dma_check()
{
if(dma_enabled()) {
if(dma_state == IDLE) {
dma_state = adkcon & 0x0400 ? DMA_WAIT_START : DMA_RUNNING_BYTE_0;
if(dma_state == DMA_RUNNING_BYTE_0 && !(dsklen & 0x3fff))
dma_done();
}
} else
dma_state = IDLE;
}
