57 lines
1 KiB
C
57 lines
1 KiB
C
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#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 GsuRamHandler : public IMemoryHandler
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{
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private:
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GsuState *_state;
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IMemoryHandler *_handler;
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public:
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GsuRamHandler(GsuState &state, IMemoryHandler *handler)
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{
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_memoryType = SnesMemoryType::GsuWorkRam;
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_handler = handler;
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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->GsuRamAccess) {
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return _handler->Read(addr);
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}
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//TODO: open bus
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return 0;
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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(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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if(!_state->SFR.Running || !_state->GsuRamAccess) {
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_handler->Write(addr, value);
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}
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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->GsuRamAccess) {
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return _handler->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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};
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