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isa/sblaster.cpp: add 8-bit DMA continue command (#11441)

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* fix missing sounds in sideline and jagdead at least, fix teardown hang in sideline
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Angelo Salese 2023-07-25 00:53:21 +02:00 committed by GitHub
parent 0b243c358b
commit d7551fdb69
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1 changed files with 5 additions and 2 deletions
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src/devices/bus/isa/sblaster.cpp
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@ -69,7 +69,7 @@ static const int m_cmd_fifo_length[256] =
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* Ax */
4, -1, 4, -1, 4, -1, 4, -1, 4, -1, -1, -1, -1, -1, 4, -1, /* Bx */
4, -1, 4, -1, 4, -1, 4, -1, 4, -1, -1, -1, -1, -1, 4, -1, /* Cx */
1, 1, -1, 1, -1, 1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, /* Dx */
1, 1, -1, 1, 1, 1, 1, -1, 1, 1, 1, -1, -1, -1, -1, -1, /* Dx */
2, 1, 2, 1, 2, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1, /* Ex */
-1, -1, 1, -1, -1, -1, -1, -1, 1, -1, -1, -1, 1, -1, -1, -1 /* Fx */
};
@ -569,13 +569,16 @@ void sb_device::process_fifo(uint8_t cmd)
case 0x42: // set input sample rate
m_dsp.adc_freq = m_dsp.fifo[2] + (m_dsp.fifo[1] << 8);
break;
case 0xd4: // continue 8-bit dma
drq_w(1);
break;
case 0xd5: // pause 16-bit dma
m_timer->adjust(attotime::never, 0);
drq16_w(0); // drop DRQ
m_dsp.dma_throttled = false;
m_dsp.dma_timer_started = false;
break;
case 0xd6: // resume 16-bit dma
case 0xd6: // continue 16-bit dma
logerror("SB: 16-bit dma resume\n");
break;
case 0xd9: // stop 16-bit autoinit