Neo Geo: safety checks

This commit is contained in:
tildearrow 2022-02-24 16:53:38 -05:00
parent e4ad569f8d
commit 82c8b97d9c
2 changed files with 13 additions and 1 deletions

View file

@ -24,8 +24,12 @@
uint8_t DivYM2610Interface::ymfm_external_read(ymfm::access_class type, uint32_t address) {
switch (type) {
case ymfm::ACCESS_ADPCM_A:
if (parent->adpcmAMem==NULL) return 0;
if ((address&0xffffff)>=parent->adpcmAMemLen) return 0;
return parent->adpcmAMem[address&0xffffff];
case ymfm::ACCESS_ADPCM_B:
if (parent->adpcmBMem==NULL) return 0;
if ((address&0xffffff)>=parent->adpcmBMemLen) return 0;
return parent->adpcmBMem[address&0xffffff];
default:
return 0;