47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
#include "stdafx.h"
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#include "../inc/Bus.h"
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#include "../inc/Ram.h"
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#include "../inc/IntelHexFile.h"
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#include "../inc/EightBitCompilerDefinitions.h"
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void EightBit::Bus::raisePOWER() noexcept {}
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void EightBit::Bus::lowerPOWER() noexcept {}
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uint8_t EightBit::Bus::read() {
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ReadingByte.fire();
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const auto returned = DATA() = reference();
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ReadByte.fire();
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return returned;
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}
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void EightBit::Bus::write() {
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WritingByte.fire();
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reference() = DATA();
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WrittenByte.fire();
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}
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void EightBit::Bus::write(const uint8_t value) {
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DATA() = value;
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write();
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}
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void EightBit::Bus::loadHexFile(const std::string& path) {
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IntelHexFile file(path);
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const auto chunks = file.parse();
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for (const auto& chunk : chunks) {
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const auto& [address, content] = chunk;
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const auto mapped = mapping(address);
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const uint16_t offset = address - mapped.begin;
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mapped.memory.load(content, offset);
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}
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}
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uint8_t& EightBit::Bus::reference(const uint16_t address) noexcept {
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const auto mapped = mapping(address);
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const auto offset = mapped.offset(address);
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if (mapped.access != MemoryMapping::AccessLevel::ReadOnly)
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return mapped.memory.reference(offset);
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return DATA() = mapped.memory.peek(offset);
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}
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