EightBit/Z80/test/Board.cpp
Adrian Conlon 1edabd79f3 More pinout oriented method of executing instructions (especially interrupts)
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2017-12-10 21:41:48 +00:00

88 lines
2.2 KiB
C++

#include "stdafx.h"
#include "Board.h"
#include <Disassembler.h>
Board::Board(const Configuration& configuration)
: m_configuration(configuration),
m_cpu(EightBit::Z80(*this, m_ports)),
m_profiler(m_cpu, m_disassembler) {
}
void Board::initialise() {
auto romDirectory = m_configuration.getRomDirectory();
//m_ram.load(romDirectory + "/prelim.com", 0x100); // Bartholomew preliminary
//m_ram.load(romDirectory + "/zexdoc.com", 0x100); // Cringle/Bartholomew
m_ram.load(romDirectory + "/zexall.com", 0x100); // Cringle/Bartholomew
//m_ram.load(romDirectory + "/CPUTEST.COM", 0x100); // SuperSoft diagnostics
//m_ram.load(romDirectory + "/TEST.COM", 0x100); // Microcosm
poke(5, 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));
}
CPU().powerOn();
CPU().PC() = m_configuration.getStartAddress();
}
void Board::Cpu_ExecutingInstruction_Cpm(const EightBit::Z80&) {
if (UNLIKELY(EightBit::Processor::lowered(m_cpu.HALT())))
m_cpu.powerOff();
auto pc = m_cpu.PC();
switch (pc.word) {
case 0x0: // CP/M warm start
m_cpu.powerOff();
if (m_configuration.isProfileMode()) {
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; peek(i) != '$'; ++i) {
std::cout << peek(i);
}
break;
}
}
void Board::Cpu_ExecutingInstruction_Profile(const EightBit::Z80& cpu) {
const auto pc = m_cpu.PC();
m_profiler.addAddress(pc.word);
m_profiler.addInstruction(peek(pc.word));
}
void Board::Cpu_ExecutingInstruction_Debug(const EightBit::Z80& cpu) {
std::cerr
<< EightBit::Disassembler::state(m_cpu)
<< "\t"
<< m_disassembler.disassemble(m_cpu)
<< '\n';
}