NESemu/Mapper_000.cpp at master · Bodzio-2/NESemu · GitHub

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#include "Mapper_000.h"

bool Mapper_000::cpuMapRead(uint16_t addr, uint32_t &mapped_addr)
{
    if(addr >= 0x8000 && addr <= 0xFFFF)
    {
        mapped_addr = addr & (nPRGBanks > 1 ? 0x7FFF : 0x3FFF);
        return true;
    }

    return false;
}

bool Mapper_000::cpuMapWrite(uint16_t addr, uint32_t &mapped_addr)
{
    if(addr >= 0x8000 && addr <= 0xFFFF)
    {
        mapped_addr = addr & (nPRGBanks > 1 ? 0x7FFF : 0x3FFF);
        return true;
    }

    return false;
}

bool Mapper_000::ppuMapRead(uint16_t addr, uint32_t &mapped_addr)
{
    if(addr >= 0x0000 && addr <= 0x1FFF)
    {
        mapped_addr = addr;
        return true;
    }

    return false;
}

bool Mapper_000::ppuMapWrite(uint16_t addr, uint32_t &mapped_addr)
{
    /*if(addr >= 0x0000 && addr <= 0x1FFF)
    {
        mapped_addr = addr;
        return true;
    }*/

    return false;
}