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fix Ubuntu build

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This commit is contained in:
tildearrow 2022-06-03 01:40:09 -05:00
parent 3aef4b2ede
commit 94dae570e0
1 changed files with 21 additions and 7 deletions
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28
src/engine/platform/pcspkr.cpp
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@ -107,25 +107,39 @@ void DivPlatformPCSpeaker::pcSpeakerThread() {
bOut=0;
if (r.val==0) {
lseek(beepFD,0x61,SEEK_SET);
read(beepFD,&bOut,1);
if (read(beepFD,&bOut,1)<1) {
perror("read from 0x61");
}
bOut&=(~3);
lseek(beepFD,0x61,SEEK_SET);
write(beepFD,&bOut,1);
if (write(beepFD,&bOut,1)<1) {
perror("write to 0x61");
}
} else {
lseek(beepFD,0x43,SEEK_SET);
bOut=0xb6;
write(beepFD,&bOut,1);
if (write(beepFD,&bOut,1)<1) {
perror("write to 0x43");
}
lseek(beepFD,0x42,SEEK_SET);
bOut=r.val&0xff;
write(beepFD,&bOut,1);
if (write(beepFD,&bOut,1)<1) {
perror("write to 0x42");
}
lseek(beepFD,0x42,SEEK_SET);
bOut=r.val>>8;
write(beepFD,&bOut,1);
if (write(beepFD,&bOut,1)<1) {
perror("write to 0x42");
}
lseek(beepFD,0x61,SEEK_SET);
read(beepFD,&bOut,1);
if (read(beepFD,&bOut,1)<1) {
perror("read from 0x61");
}
bOut|=3;
lseek(beepFD,0x61,SEEK_SET);
write(beepFD,&bOut,1);
if (write(beepFD,&bOut,1)<1) {
perror("write to 0x61");
}
}
break;
}