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improve implementation

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This commit is contained in:
Jaklyy
2024-06-02 10:13:50 -04:00
parent 960f063eaa
commit 63d4b78733
4 changed files with 44 additions and 52 deletions
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22
src/CP15.cpp
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@ -863,12 +863,12 @@ void ARMv5::DataRead16(u32 addr, u32* val)
DataCycles = MemTimings[addr >> 12][1];
}
void ARMv5::DataRead32(u32 addr, u32* val)
bool ARMv5::DataRead32(u32 addr, u32* val)
{
if (!(PU_Map[addr>>12] & 0x01))
{
DataAbort();
return;
return false;
}
DataRegion = addr;
@ -879,38 +879,46 @@ void ARMv5::DataRead32(u32 addr, u32* val)
{
DataCycles = 1;
*val = *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return;
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles = 1;
*val = *(u32*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return;
return true;
}
*val = BusRead32(addr);
DataCycles = MemTimings[addr >> 12][2];
return true;
}
void ARMv5::DataRead32S(u32 addr, u32* val)
bool ARMv5::DataRead32S(u32 addr, u32* val)
{
if (!(PU_Map[addr>>12] & 0x01))
{
DataAbort();
return false;
}
addr &= ~3;
if (addr < ITCMSize)
{
DataCycles += 1;
*val = *(u32*)&ITCM[addr & (ITCMPhysicalSize - 1)];
return;
return true;
}
if ((addr & DTCMMask) == DTCMBase)
{
DataCycles += 1;
*val = *(u32*)&DTCM[addr & (DTCMPhysicalSize - 1)];
return;
return true;
}
*val = BusRead32(addr);
DataCycles += MemTimings[addr >> 12][3];
return true;
}
void ARMv5::DataWrite8(u32 addr, u8 val)