EightBit/Intel8080/test/Board.cpp

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#include "stdafx.h"
#include "Board.h"
#include "Disassembler.h"
#include "Configuration.h"
#include <iostream>
Board::Board(const Configuration& configuration)
: m_configuration(configuration),
m_memory(0xffff),
m_cpu(EightBit::Intel8080(m_memory, m_ports)) {
}
void Board::initialise() {
m_memory.clear();
auto romDirectory = m_configuration.getRomDirectory();
//m_memory.loadRam(romDirectory + "/TEST.COM", 0x100); // Microcosm
//m_memory.loadRam(romDirectory + "/8080PRE.COM", 0x100); // Bartholomew preliminary
m_memory.loadRam(romDirectory + "/8080EX1.COM", 0x100); // Cringle/Bartholomew
//m_memory.loadRam(romDirectory + "/CPUTEST.COM", 0x100); // SuperSoft diagnostics
m_memory.ADDRESS().word = 5;
m_memory.reference() = 0xc9; // ret
m_cpu.ExecutingInstruction.connect(std::bind(&Board::Cpu_ExecutingInstruction_Cpm, this, std::placeholders::_1));
if (m_configuration.isProfileMode()) {
m_cpu.ExecutingInstruction.connect(std::bind(&Board::Cpu_ExecutingInstruction_Profile, this, std::placeholders::_1));
}
if (m_configuration.isDebugMode()) {
m_cpu.ExecutingInstruction.connect(std::bind(&Board::Cpu_ExecutingInstruction_Debug, this, std::placeholders::_1));
}
m_cpu.initialise();
m_cpu.PC() = m_configuration.getStartAddress();
}
void Board::Cpu_ExecutingInstruction_Cpm(const EightBit::Intel8080&) {
auto pc = m_cpu.PC();
switch (pc.word) {
case 0x0: // CP/M warm start
m_cpu.halt();
m_profiler.dump();
break;
case 0x5: // BDOS
bdos();
break;
default:
break;
}
}
void Board::bdos() {
auto c = m_cpu.C();
switch (c) {
case 0x2: {
auto character = m_cpu.E();
std::cout << character;
break;
}
case 0x9:
for (uint16_t i = m_cpu.DE().word; m_memory.peek(i) != '$'; ++i) {
std::cout << m_memory.peek(i);
}
break;
}
}
void Board::Cpu_ExecutingInstruction_Profile(const EightBit::Intel8080& cpu) {
const auto pc = m_cpu.PC();
m_profiler.addAddress(pc.word);
m_profiler.addInstruction(m_memory.peek(pc.word));
}
void Board::Cpu_ExecutingInstruction_Debug(const EightBit::Intel8080&) {
std::cerr
<< EightBit::Disassembler::state(m_cpu)
<< "\t"
<< EightBit::Disassembler::disassemble(m_cpu)
<< '\n';
}