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https://github.com/MoleskiCoder/EightBit.git
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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#include "stdafx.h"
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#include "Board.h"
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Board::Board(const Configuration& configuration)
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: m_configuration(configuration),
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m_cpu(EightBit::mc6809(*this)),
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m_disassembler(m_cpu) {}
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void Board::initialise() {
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const auto directory = m_configuration.getRomDirectory() + "\\";
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loadHexFile(directory + "ExBasROM.hex");
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if (m_configuration.isDebugMode()) {
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CPU().ExecutingInstruction.connect(std::bind(&Board::Cpu_ExecutingInstruction_Debug, this, std::placeholders::_1));
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CPU().ExecutedInstruction.connect(std::bind(&Board::Cpu_ExecutedInstruction_Debug, this, std::placeholders::_1));
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}
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CPU().powerOn();
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CPU().raise(CPU().NMI());
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CPU().raise(CPU().FIRQ());
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CPU().reset();
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}
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void Board::Cpu_ExecutingInstruction_Debug(EightBit::mc6809&) {
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m_disassembleAt = CPU().PC();
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m_ignoreDisassembly = m_disassembler.ignore();
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}
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void Board::Cpu_ExecutedInstruction_Debug(EightBit::mc6809&) {
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if (!m_ignoreDisassembly)
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std::cout << m_disassembler.trace(m_disassembleAt) << std::endl;
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}
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EightBit::MemoryMapping Board::mapping(uint16_t address) {
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if (address < 0x8000)
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return { m_ram, 0x0000, EightBit::MemoryMapping::ReadWrite };
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if (address < 0xc000)
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return { m_io, 0x8000, EightBit::MemoryMapping::ReadWrite };
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return { m_rom, 0xc000, EightBit::MemoryMapping::ReadOnly };
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}
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