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ata/atapihle.cpp: clamp buffer size to word units in command packet

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* fix CD audio playback in PC-based systems
This commit is contained in:
angelosa 2024-11-24 12:37:35 +01:00
parent be1236fcf8
commit 6f892bc2e3
1 changed files with 2 additions and 1 deletions
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3
src/devices/bus/ata/atapihle.cpp
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@ -106,7 +106,8 @@ void atapi_hle_device::fill_buffer()
case IDE_COMMAND_PACKET: case IDE_COMMAND_PACKET:
if (m_buffer_size >= m_data_size) if (m_buffer_size >= m_data_size)
{ {
m_buffer_size = m_data_size; // MSCDEX/SHSUCDX PC drivers wants the clamp for CD audio playback (29 bytes).
m_buffer_size = m_data_size & 0xfffe;
} }
else else
{ {