mirror of
https://github.com/MoleskiCoder/EightBit.git
synced 2024-11-19 02:08:25 +00:00
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#include "stdafx.h"
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#include "Board.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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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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m_extendedBasic.load(directory + "extbas11.rom");
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m_colorBasic.load(directory + "bas12.rom");
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m_diskBasic.load(directory + "disk11.rom");
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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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}
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CPU().powerOn();
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CPU().reset();
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}
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void Board::Cpu_ExecutingInstruction_Debug(EightBit::mc6809& cpu) {
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auto address = cpu.PC().word;
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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 << "CC=" << m_disassembler.dump_Flags(CPU().CC()) << ", ";
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std::cout << "D=" << (int)CPU().D().word << ", ";
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std::cout << "X=" << (int)CPU().X().word << ", ";
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std::cout << "Y=" << (int)CPU().Y().word << ", ";
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std::cout << "U=" << (int)CPU().U().word << ",";
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std::cout << "S=" << (int)CPU().S().word << ", ";
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std::cout << std::setw(2) << std::setfill('0');
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std::cout << "DP=" << (int)CPU().DP() << "\t";
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std::cout << m_disassembler.disassemble(address);
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std::cout << "\n";
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}
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uint8_t& Board::reference(uint16_t address) {
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// 0x0000 - 0x7fff
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if (address < 0x8000)
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return m_ram.reference(address);
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// 0x8000 - 0x9fff
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if (address < 0xa000)
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return DATA() = m_extendedBasic.peek(address - 0x8000);
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// 0xa000 - 0xbfff
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if (address < 0xc000)
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return DATA() = m_colorBasic.peek(address - 0xa000);
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// 0xc000 - 0xdfff
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if (address < 0xe000)
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return DATA() = m_diskBasic.peek(address - 0xc000);
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// 0xe000 - 0xfeff
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if (address < 0xff00)
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return DATA() = 0xff;
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// 0xe000 - 0xfeff
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if (address < 0xfff0)
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return m_io.reference(address - 0xff00);
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// 0xfff0 - 0xffff
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const auto offset = address - 0xfff0;
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return DATA() = m_colorBasic.peek(0x1ff0 + offset);
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}
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