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C140: fix possible crash

This commit is contained in:
tildearrow 2023-08-19 23:30:35 -05:00
parent 396f51c75f
commit 993c5904e2
1 changed files with 2 additions and 0 deletions
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2
src/engine/platform/c140.cpp
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@ -449,6 +449,7 @@ void DivPlatformC140::renderSamples(int sysID) {
if (memPos+length>=(getSampleMemCapacity())) {
if (s->depth==DIV_SAMPLE_DEPTH_MULAW) {
for (unsigned int i=0; i<(getSampleMemCapacity())-memPos; i++) {
if (i>=s->lengthMuLaw) break;
unsigned char x=s->dataMuLaw[i]^0xff;
if (x&0x80) x^=15;
unsigned char c140Mu=(x&0x80)|((x&15)<<3)|((x&0x70)>>4);
@ -461,6 +462,7 @@ void DivPlatformC140::renderSamples(int sysID) {
} else {
if (s->depth==DIV_SAMPLE_DEPTH_MULAW) {
for (unsigned int i=0; i<length; i++) {
if (i>=s->lengthMuLaw) break;
unsigned char x=s->dataMuLaw[i]^0xff;
if (x&0x80) x^=15;
unsigned char c140Mu=(x&0x80)|((x&15)<<3)|((x&0x70)>>4);