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https://github.com/MoleskiCoder/EightBit.git
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70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
#include "stdafx.h"
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#include "Board.h"
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#include "Disassembly.h"
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#include <iostream>
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#include <sstream>
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#include <iomanip>
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#include <assert.h>
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Board::Board(const Configuration& configuration)
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: m_configuration(configuration) {}
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void Board::raisePOWER() noexcept {
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EightBit::Bus::raisePOWER();
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CPU().raisePOWER();
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CPU().raiseRESET();
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CPU().raiseINT();
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CPU().raiseNMI();
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CPU().raiseSO();
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CPU().raiseRDY();
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}
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void Board::lowerPOWER() noexcept {
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CPU().lowerPOWER();
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EightBit::Bus::lowerPOWER();
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}
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void Board::initialise() {
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auto programFilename = m_configuration.getProgram();
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auto programPath = m_configuration.getRomDirectory() + "/" + m_configuration.getProgram();
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auto loadAddress = m_configuration.getLoadAddress();
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m_ram.load(programPath, loadAddress.word);
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// Disassembly output
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if (m_configuration.isDebugMode())
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CPU().ExecutingInstruction.connect([this] (EightBit::MOS6502& cpu) {
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const auto address = cpu.PC();
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const auto cell = peek(address);
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std::cout << std::hex;
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std::cout << "PC=" << std::setw(4) << std::setfill('0') << address << ":";
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std::cout << "P=" << m_disassembler.dump_Flags(CPU().P()) << ", ";
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std::cout << std::setw(2) << std::setfill('0');
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std::cout << "A=" << (int)CPU().A() << ", ";
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std::cout << "X=" << (int)CPU().X() << ", ";
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std::cout << "Y=" << (int)CPU().Y() << ", ";
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std::cout << "S=" << (int)CPU().S() << "\t";
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std::cout << m_disassembler.disassemble(address.word);
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std::cout << "\n";
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});
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// Loop detected stop condition
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CPU().ExecutedInstruction.connect([this] (EightBit::MOS6502& cpu) {
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const auto pc = cpu.PC();
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if (m_oldPC != pc) {
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m_oldPC = pc;
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} else {
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lowerPOWER();
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auto test = peek(0x0200);
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std::cout << std::endl << "** Test=" << std::hex << (int)test;
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}
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});
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poke(0x00, 0x4c);
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CPU().pokeWord(1, m_configuration.getStartAddress());
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}
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