mirror of
https://github.com/TomHarte/CLK.git
synced 2024-11-27 15:50:56 +00:00
109 lines
2.6 KiB
Plaintext
109 lines
2.6 KiB
Plaintext
//
|
|
// Machine.m
|
|
// CLK
|
|
//
|
|
// Created by Thomas Harte on 29/06/2015.
|
|
// Copyright © 2015 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#import "TestMachine6502.h"
|
|
#include <stdint.h>
|
|
#include "6502AllRAM.hpp"
|
|
#import "TestMachine+ForSubclassEyesOnly.h"
|
|
|
|
const uint8_t CSTestMachine6502JamOpcode = CPU::MOS6502::JamOpcode;
|
|
|
|
#pragma mark - Register enum map
|
|
|
|
static CPU::MOS6502::Register registerForRegister(CSTestMachine6502Register reg) {
|
|
switch (reg) {
|
|
case CSTestMachine6502RegisterProgramCounter: return CPU::MOS6502::Register::ProgramCounter;
|
|
case CSTestMachine6502RegisterLastOperationAddress: return CPU::MOS6502::Register::LastOperationAddress;
|
|
case CSTestMachine6502RegisterFlags: return CPU::MOS6502::Register::Flags;
|
|
case CSTestMachine6502RegisterA: return CPU::MOS6502::Register::A;
|
|
case CSTestMachine6502RegisterX: return CPU::MOS6502::Register::X;
|
|
case CSTestMachine6502RegisterY: return CPU::MOS6502::Register::Y;
|
|
case CSTestMachine6502RegisterStackPointer: return CPU::MOS6502::Register::S;
|
|
}
|
|
}
|
|
|
|
#pragma mark - Test class
|
|
|
|
@implementation CSTestMachine6502 {
|
|
CPU::MOS6502::AllRAMProcessor *_processor;
|
|
}
|
|
|
|
#pragma mark - Lifecycle
|
|
|
|
- (instancetype)init {
|
|
self = [super init];
|
|
|
|
if(self) {
|
|
_processor = CPU::MOS6502::AllRAMProcessor::Processor();
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void)dealloc {
|
|
delete _processor;
|
|
}
|
|
|
|
#pragma mark - Accessors
|
|
|
|
- (uint8_t)valueForAddress:(uint16_t)address {
|
|
uint8_t value;
|
|
_processor->get_data_at_address(address, 1, &value);
|
|
return value;
|
|
}
|
|
|
|
- (void)setValue:(uint8_t)value forAddress:(uint16_t)address {
|
|
_processor->set_data_at_address(address, 1, &value);
|
|
}
|
|
|
|
- (void)setValue:(uint16_t)value forRegister:(CSTestMachine6502Register)reg {
|
|
_processor->set_value_of_register(registerForRegister(reg), value);
|
|
}
|
|
|
|
- (uint16_t)valueForRegister:(CSTestMachine6502Register)reg {
|
|
return _processor->get_value_of_register(registerForRegister(reg));
|
|
}
|
|
|
|
- (void)setData:(NSData *)data atAddress:(uint16_t)startAddress {
|
|
_processor->set_data_at_address(startAddress, data.length, (const uint8_t *)data.bytes);
|
|
}
|
|
|
|
- (BOOL)isJammed {
|
|
return _processor->is_jammed();
|
|
}
|
|
|
|
- (uint32_t)timestamp {
|
|
return _processor->get_timestamp();
|
|
}
|
|
|
|
- (void)setIrqLine:(BOOL)irqLine {
|
|
_irqLine = irqLine;
|
|
_processor->set_irq_line(irqLine);
|
|
}
|
|
|
|
- (void)setNmiLine:(BOOL)nmiLine {
|
|
_nmiLine = nmiLine;
|
|
_processor->set_nmi_line(nmiLine);
|
|
}
|
|
|
|
- (CPU::AllRAMProcessor *)processor {
|
|
return _processor;
|
|
}
|
|
|
|
#pragma mark - Actions
|
|
|
|
- (void)returnFromSubroutine {
|
|
_processor->return_from_subroutine();
|
|
}
|
|
|
|
- (void)runForNumberOfCycles:(int)cycles {
|
|
_processor->run_for(Cycles(cycles));
|
|
}
|
|
|
|
@end
|