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Correctly support 16 bit write again

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1768
This commit is contained in:
Sjoerd van der Berg 2004-04-14 20:50:50 +00:00
parent 93d4681df6
commit 7c67adc360
1 changed files with 4 additions and 2 deletions
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6
src/hardware/gus.cpp
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@ -800,7 +800,8 @@ static Bitu read_gus(Bitu port,Bitu iolen) {
case 0x303:
return myGUS.gRegSelect;
case 0x304:
return ExecuteReadRegister() & 0xff;
if (iolen==2) return ExecuteReadRegister() & 0xffff;
else return ExecuteReadRegister() & 0xff;
case 0x305:
return ExecuteReadRegister() >> 8;
case 0x307:
@ -858,7 +859,8 @@ static void write_gus(Bitu port,Bitu val,Bitu iolen) {
myGUS.gRegData = 0;
break;
case 0x304:
myGUS.gRegData = (0xff00 & myGUS.gRegData) | val;
if (iolen==2) myGUS.gRegData=val;
else myGUS.gRegData = (0xff00 & myGUS.gRegData) | val;
ExecuteGlobRegister();
break;
case 0x305: