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#pragma once
#include <iostream>
#include <cstdint>
#include <type_traits>
#include <stdexcept>
#include <cstring>
#include <memory>
#include "RAM.h"
#include "Exceptions.h"
class Bus {
public:
Bus(std::shared_ptr<RAM> m_Bus);
~Bus() = default;
public:
template<typename T>
void WriteX(uint64_t address, T value)
{
static_assert(std::is_unsigned_v<T>, "T must be an unsigned int of any size smaller than 8 bytes!");
// std::cout << "Bus write: " << std::hex << address << std::endl;
switch(address)
{
case 0x00008000 ... 0x000FFFFF:
{
uint64_t offset = address - 0x00008000;
std::memcpy(&m_RAM->Data()[offset], &value, sizeof(T));
break;
}
default:
std::string exception = "Illegal access to: " + std::to_string(address);
throw CPUException(exception);
}
}
template<typename T>
T AccessX(uint64_t address)
{
static_assert(std::is_unsigned_v<T>, "T must be an unsigned int of any size smaller than 8 bytes!");
//std::cout << "Bus access: " << std::hex << address << std::endl;
switch(address)
{
case 0x00008000 ... 0x000FFFFF:
{
uint64_t offset = address - 0x00008000;
T value;
std::memcpy(&value, &m_RAM->Data()[offset], sizeof(T));
return value;
}
default:
std::string exception = "Illegal access to: " + std::to_string(address);
throw std::runtime_error(exception);
}
}
private:
std::shared_ptr<RAM> m_RAM;
};
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