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Fix 16bit sample reading from gus memory

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4004
This commit is contained in:
Sjoerd van der Berg 2017-01-13 17:38:46 +00:00
parent 271d8cffa6
commit c4ed80ca35
1 changed files with 3 additions and 2 deletions
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5
src/hardware/gus.cpp
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@ -179,9 +179,10 @@ public:
}
INLINE Bit32s GetSample16() const {
Bit32u useAddr = WaveAddr >> WAVE_FRACT;
// Formula used to convert addresses for use with 16-bit samples
Bit32u holdAddr = WaveAddr & 0xc0000L;
Bit32u useAddr = WaveAddr & 0x1ffffL;
Bit32u holdAddr = useAddr & 0xc0000L;
useAddr = useAddr & 0x1ffffL;
useAddr = useAddr << 1;
useAddr = (holdAddr | useAddr);
if (WaveAdd >= (1 << WAVE_FRACT)) {