EightBit/Z80/test/Board.cpp
2018-10-20 20:52:41 +01:00

91 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_disassembler(*this),
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_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().reset();
poke(0, 0xc3); // JMP
poke(1, m_configuration.getStartAddress().low);
poke(2, m_configuration.getStartAddress().high);
poke(5, 0xc9); // ret
}
void Board::Cpu_ExecutingInstruction_Cpm(EightBit::Z80& cpu) {
if (UNLIKELY(EightBit::Chip::lowered(cpu.HALT())))
CPU().powerOff();
switch (cpu.PC().word) {
case 0x0: // CP/M warm start
if (++m_warmstartCount == 3) {
CPU().powerOff();
if (m_configuration.isProfileMode()) {
m_profiler.dump();
}
}
break;
case 0x5: // BDOS
bdos();
break;
default:
break;
}
}
void Board::bdos() {
switch (CPU().C()) {
case 0x2:
std::cout << CPU().E();
break;
case 0x9:
for (uint16_t i = CPU().DE().word; peek(i) != '$'; ++i) {
std::cout << peek(i);
}
break;
}
}
void Board::Cpu_ExecutingInstruction_Profile(EightBit::Z80& cpu) {
const auto pc = cpu.PC();
m_profiler.addAddress(pc.word);
m_profiler.addInstruction(peek(pc));
}
void Board::Cpu_ExecutingInstruction_Debug(EightBit::Z80& cpu) {
std::cerr
<< EightBit::Disassembler::state(cpu)
<< "\t"
<< m_disassembler.disassemble(cpu)
<< std::endl;
}