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