mirror of
https://github.com/TomHarte/CLK.git
synced 2024-11-20 15:31:10 +00:00
103 lines
2.6 KiB
Plaintext
103 lines
2.6 KiB
Plaintext
//
|
|
// Machine.m
|
|
// CLK
|
|
//
|
|
// Created by Thomas Harte on 29/06/2015.
|
|
// Copyright © 2015 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#import "TestMachine.h"
|
|
#include <stdint.h>
|
|
#include "CPU6502AllRAM.hpp"
|
|
|
|
const uint8_t CSTestMachineJamOpcode = CPU6502::JamOpcode;
|
|
|
|
class MachineJamHandler: public CPU6502::AllRAMProcessor::JamHandler {
|
|
public:
|
|
MachineJamHandler(CSTestMachine *targetMachine) : _targetMachine(targetMachine) {}
|
|
|
|
void processor_did_jam(CPU6502::AllRAMProcessor::Processor *processor, uint16_t address) override {
|
|
[_targetMachine.jamHandler testMachine:_targetMachine didJamAtAddress:address];
|
|
}
|
|
|
|
private:
|
|
CSTestMachine *_targetMachine;
|
|
};
|
|
|
|
@implementation CSTestMachine {
|
|
CPU6502::AllRAMProcessor _processor;
|
|
MachineJamHandler *_cppJamHandler;
|
|
}
|
|
|
|
- (uint8_t)valueForAddress:(uint16_t)address {
|
|
uint8_t value;
|
|
_processor.perform_bus_operation(CPU6502::BusOperation::Read, address, &value);
|
|
return value;
|
|
}
|
|
|
|
- (void)setValue:(uint8_t)value forAddress:(uint16_t)address {
|
|
_processor.perform_bus_operation(CPU6502::BusOperation::Write, address, &value);
|
|
}
|
|
|
|
- (void)returnFromSubroutine {
|
|
_processor.return_from_subroutine();
|
|
}
|
|
|
|
- (CPU6502::Register)registerForRegister:(CSTestMachineRegister)reg {
|
|
switch (reg) {
|
|
case CSTestMachineRegisterProgramCounter: return CPU6502::Register::ProgramCounter;
|
|
case CSTestMachineRegisterLastOperationAddress: return CPU6502::Register::LastOperationAddress;
|
|
case CSTestMachineRegisterFlags: return CPU6502::Register::Flags;
|
|
case CSTestMachineRegisterA: return CPU6502::Register::A;
|
|
case CSTestMachineRegisterX: return CPU6502::Register::X;
|
|
case CSTestMachineRegisterY: return CPU6502::Register::Y;
|
|
case CSTestMachineRegisterStackPointer: return CPU6502::Register::S;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
- (void)setValue:(uint16_t)value forRegister:(CSTestMachineRegister)reg {
|
|
_processor.set_value_of_register([self registerForRegister:reg], value);
|
|
}
|
|
|
|
- (uint16_t)valueForRegister:(CSTestMachineRegister)reg {
|
|
return _processor.get_value_of_register([self registerForRegister:reg]);
|
|
}
|
|
|
|
- (void)setData:(NSData *)data atAddress:(uint16_t)startAddress {
|
|
_processor.set_data_at_address(startAddress, data.length, (const uint8_t *)data.bytes);
|
|
}
|
|
|
|
//- (void)reset {
|
|
// _processor.reset();
|
|
//}
|
|
|
|
- (void)runForNumberOfCycles:(int)cycles {
|
|
_processor.run_for_cycles(cycles);
|
|
}
|
|
|
|
- (BOOL)isJammed {
|
|
return _processor.is_jammed();
|
|
}
|
|
|
|
- (instancetype)init {
|
|
self = [super init];
|
|
|
|
if(self) {
|
|
_cppJamHandler = new MachineJamHandler(self);
|
|
_processor.set_jam_handler(_cppJamHandler);
|
|
}
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void)dealloc {
|
|
delete _cppJamHandler;
|
|
}
|
|
|
|
- (uint32_t)timestamp {
|
|
return _processor.get_timestamp();
|
|
}
|
|
|
|
@end
|