Function doreaddma

src/disk.cpp:4275–4305

}

static int doreaddma(void)
{
	if (dmaen(DMA_DISK) && bitoffset == 15 && dma_enable && dskdmaen == DSKDMA_READ && dsklength >= 0) {
		if (dsklength > 0) {
			// fast disk modes, just flush the fifo
			if (currprefs.floppy_speed > 100 && fifo_inuse[0] && fifo_inuse[1] && fifo_inuse[2]) {
				while (fifo_inuse[0]) {
					uae_u16 w = DSKDATR(0);
					chipmem_wput_indirect (dskpt, w);
					dskpt += 2;
				}
			}
			if (disk_fifostatus() > 0) {
				return -1;
			} else {
				dsklength--;
				// Paula bug: when dsklength reaches zero, FIFO status is checked too early.
				if (disk_fifostatus() < 0 && dsklength == 0) {
					disk_dmafinished();
				} else {
					DSKDAT(word);
#if DISK_DEBUG_X > 1
					write_log("buffer load %d %d\n", floppy[0].mfmpos, dsklength);
#endif
				}
			}
		}
		return 1;
	}
	return 0;
}

static void wordsync_detected(bool startup)
{