66 lines
No EOL
1.2 KiB
C++
66 lines
No EOL
1.2 KiB
C++
#pragma once
|
|
#include "stdafx.h"
|
|
#include "IMemoryHandler.h"
|
|
#include "GsuTypes.h"
|
|
|
|
class GsuRomHandler : public IMemoryHandler
|
|
{
|
|
private:
|
|
GsuState *_state;
|
|
IMemoryHandler *_romHandler;
|
|
|
|
public:
|
|
GsuRomHandler(GsuState &state, IMemoryHandler *romHandler)
|
|
{
|
|
_memoryType = SnesMemoryType::PrgRom;
|
|
_romHandler = romHandler;
|
|
_state = &state;
|
|
}
|
|
|
|
uint8_t Read(uint32_t addr) override
|
|
{
|
|
if(!_state->SFR.Running || !_state->GsuRomAccess) {
|
|
return _romHandler->Read(addr);
|
|
}
|
|
|
|
if(addr & 0x01) {
|
|
return 0x01;
|
|
}
|
|
|
|
switch(addr & 0x0E) {
|
|
default:
|
|
case 2: case 6: case 8: case 0x0C:
|
|
return 0;
|
|
|
|
case 4: return 0x04;
|
|
case 0x0A: return 0x08;
|
|
case 0x0E: return 0x0C;
|
|
}
|
|
}
|
|
|
|
uint8_t Peek(uint32_t addr) override
|
|
{
|
|
return Read(addr);
|
|
}
|
|
|
|
void PeekBlock(uint8_t *output) override
|
|
{
|
|
for(int i = 0; i < 0x1000; i++) {
|
|
output[i] = Read(i);
|
|
}
|
|
}
|
|
|
|
void Write(uint32_t addr, uint8_t value) override
|
|
{
|
|
//ROM
|
|
}
|
|
|
|
AddressInfo GetAbsoluteAddress(uint32_t address) override
|
|
{
|
|
if(!_state->SFR.Running || !_state->GsuRomAccess) {
|
|
return _romHandler->GetAbsoluteAddress(address);
|
|
} else {
|
|
return { -1, SnesMemoryType::Register };
|
|
}
|
|
}
|
|
}; |