Lynx/FennixLoader/Memory/Bitmap.cpp

#include <bitmap.hpp>

bool Bitmap::operator[](uint64_t index) { return Get(index); }

bool Bitmap::Get(uint64_t index)
{
    if (index > Size * 8)
        return false;
    uint64_t byteIndex = index / 8;
    uint8_t bitIndex = index % 8;
    uint8_t bitIndexer = 0b10000000 >> bitIndex;
    if ((Buffer[byteIndex] & bitIndexer) > 0)
        return true;
    return false;
}

bool Bitmap::Set(uint64_t index, bool value)
{
    if (index > Size * 8)
        return false;
    uint64_t byteIndex = index / 8;
    uint8_t bitIndex = index % 8;
    uint8_t bitIndexer = 0b10000000 >> bitIndex;
    Buffer[byteIndex] &= ~bitIndexer;
    if (value)
        Buffer[byteIndex] |= bitIndexer;
    return true;
}