46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
#include "stdafx.h"
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#include "../inc/InputOutput.h"
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#include <cassert>
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#include <stdexcept>
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#include "../inc/Register.h"
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uint16_t EightBit::InputOutput::size() const noexcept {
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return 0x100;
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}
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uint8_t EightBit::InputOutput::peek(uint16_t) const noexcept {
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assert(false && "Peek operation not allowed.");
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return 0xff;
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}
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uint8_t& EightBit::InputOutput::reference(uint16_t address) noexcept {
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const auto port = register16_t(address).low;
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switch (accessType()) {
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case AccessType::Reading:
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return m_input.reference(port);
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case AccessType::Writing:
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return m_output.reference(port);
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default:
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assert(false && "Unknown I/O access type.");
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}
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return m_delivered;
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}
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int EightBit::InputOutput::load(std::ifstream&, int, int, int) {
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throw std::logic_error("load operation not allowed.");
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}
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int EightBit::InputOutput::load(std::string, int, int, int) {
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throw std::logic_error("load operation not allowed.");
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}
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int EightBit::InputOutput::load(const std::vector<uint8_t>&, int, int, int) {
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throw std::logic_error("load operation not allowed.");
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}
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void EightBit::InputOutput::poke(uint16_t, uint8_t) noexcept {
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assert(false && "Poke operation not allowed.");
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}
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