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isa/sb16.cpp: add +1 to DMA length for stereo mode as well

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This commit is contained in:
angelosa 2024-11-26 17:10:23 +01:00
parent 6cc52bd96a
commit 1bfe721c04
1 changed files with 4 additions and 2 deletions
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6
src/devices/bus/isa/sb16.cpp
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@ -168,9 +168,10 @@ void sb16_lle_device::ctrl8_w(uint8_t data)
*/ */
if(data & 4) if(data & 4)
{ {
m_dma8_cnt = m_dma8_len + 1; m_dma8_cnt = m_dma8_len;
if (!(BIT(m_mode, 6))) if (!(BIT(m_mode, 6)))
m_dma8_cnt >>= 1; m_dma8_cnt >>= 1;
m_dma8_cnt ++;
m_dma8_done = false; m_dma8_done = false;
} }
if(!(data & 2) || !(m_ctrl16 & 2)) if(!(data & 2) || !(m_ctrl16 & 2))
@ -211,9 +212,10 @@ void sb16_lle_device::ctrl16_w(uint8_t data)
*/ */
if(data & 4) if(data & 4)
{ {
m_dma16_cnt = m_dma16_len + 1; m_dma16_cnt = m_dma16_len;
if (!(BIT(m_mode, 7))) if (!(BIT(m_mode, 7)))
m_dma16_cnt >>= 1; m_dma16_cnt >>= 1;
m_dma16_cnt ++;
m_dma16_done = false; m_dma16_done = false;
} }
if(!(data & 2) || !(m_ctrl8 & 2)) if(!(data & 2) || !(m_ctrl8 & 2))