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Code Issues 18 Packages Projects Releases 2 Wiki Activity

Fix supervisor bit

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This commit is contained in:
meepingsnesroms
2018-04-18 13:08:19 -07:00
parent bd03479fd4
commit 6db96712f8
1 changed files with 12 additions and 6 deletions
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18
src/memoryAccess.c
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@@ -62,7 +62,7 @@ static inline void sed1376Write32(unsigned int address, unsigned int value){
}
static inline bool probeRead(uint8_t bank, unsigned int address){
if(chips[bank].supervisorOnlyProtectedMemory && address >= chips[bank].unprotectedSize && !(m68k_get_reg(NULL, M68K_REG_SR) & 0x4000)){
if(chips[bank].supervisorOnlyProtectedMemory && address >= chips[bank].unprotectedSize && !(m68k_get_reg(NULL, M68K_REG_SR) & 0x2000)){
setPrivilegeViolation();
return false;
}
@@ -70,14 +70,20 @@ static inline bool probeRead(uint8_t bank, unsigned int address){
}
static inline bool probeWrite(uint8_t bank, unsigned int address){
if(chips[bank].supervisorOnlyProtectedMemory && address >= chips[bank].unprotectedSize && !(m68k_get_reg(NULL, M68K_REG_SR) & 0x4000)){
setPrivilegeViolation();
return false;
}
if(chips[bank].readOnly || (chips[bank].readOnlyForProtectedMemory && address >= chips[bank].unprotectedSize)){
if(chips[bank].readOnly){
setWriteProtectViolation();
return false;
}
else if(address >= chips[bank].unprotectedSize){
if(chips[bank].supervisorOnlyProtectedMemory && !(m68k_get_reg(NULL, M68K_REG_SR) & 0x2000)){
setPrivilegeViolation();
return false;
}
if(chips[bank].readOnlyForProtectedMemory){
setWriteProtectViolation();
return false;
}
}
return true;
}