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next-cube.c: don't pulse SCSI DMA IRQ upon reception of FLUSH command

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Normally a DMA FLUSH command is used to ensure that data is completely written
to the device and/or memory, so remove the pulse of the SCSI DMA IRQ if a DMA
FLUSH command is received. This enables the NeXT ROM monitor to start to load
from a SCSI disk.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-ID: <20231220131641.592826-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
This commit is contained in:
Mark Cave-Ayland 2023-12-20 13:16:32 +00:00 • committed by Thomas Huth
parent 2a287eabb1
commit 6f2454be58
1 changed files with 0 additions and 1 deletions
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hw/m68k/next-cube.c
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@ -473,7 +473,6 @@ static void scr_writeb(NeXTPC *s, hwaddr addr, uint32_t value)
DPRINTF("SCSICSR FIFO Flush\n"); DPRINTF("SCSICSR FIFO Flush\n");
/* will have to add another irq to the esp if this is needed */ /* will have to add another irq to the esp if this is needed */
/* esp_puflush_fifo(esp_g); */ /* esp_puflush_fifo(esp_g); */
qemu_irq_pulse(s->scsi_dma);
} }
if (value & SCSICSR_ENABLE) { if (value & SCSICSR_ENABLE) {