69 lines
1.1 KiB
C++
69 lines
1.1 KiB
C++
#pragma once
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#include "stdafx.h"
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#include "IMemoryHandler.h"
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#include "DebugTypes.h"
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class RamHandler : public IMemoryHandler
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{
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private:
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uint8_t* _ram;
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uint32_t _mask;
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protected:
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uint32_t _offset;
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public:
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RamHandler(uint8_t* ram, uint32_t offset, uint32_t size, SnesMemoryType memoryType) : IMemoryHandler(memoryType)
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{
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_ram = ram + offset;
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_offset = offset;
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if (size - offset < 0x1000)
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{
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_mask = size - offset - 1;
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}
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else
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{
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_mask = 0xFFF;
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}
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_memoryType = memoryType;
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}
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uint8_t Read(uint32_t addr) override
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{
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return _ram[addr & _mask];
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}
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uint8_t Peek(uint32_t addr) override
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{
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return _ram[addr & _mask];
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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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if (_mask != 0xFFF)
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{
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for (int i = 0; i < 0x1000; i++)
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{
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output[i] = _ram[i & _mask];
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}
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}
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else
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{
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memcpy(output, _ram, 0x1000);
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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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_ram[addr & _mask] = value;
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}
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AddressInfo GetAbsoluteAddress(uint32_t address) override
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{
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AddressInfo info;
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info.Address = _offset + (address & _mask);
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info.Type = _memoryType;
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return info;
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}
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};
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