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1248 lines
29 KiB
Swift
1248 lines
29 KiB
Swift
//
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// Z80MachineCycleTests.swift
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// Clock Signal
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//
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// Created by Thomas Harte on 15/06/2017.
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// Copyright © 2017 Thomas Harte. All rights reserved.
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//
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import XCTest
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class Z80MachineCycleTests: XCTestCase {
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private struct MachineCycle: CustomDebugStringConvertible {
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var operation: CSTestMachineZ80BusOperationCaptureOperation
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var length: Int32
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public var debugDescription: String {
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get {
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var opName = ""
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switch operation {
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case .readOpcode: opName = "ro"
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case .read: opName = "r"
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case .write: opName = "w"
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case .portRead: opName = "i"
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case .portWrite: opName = "o"
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case .internalOperation: opName = "iop"
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}
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return "\(opName) \(length)"
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}
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}
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}
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private func test(program : [UInt8], busCycles : [MachineCycle]) {
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// Create a machine and install the supplied program at address 0, setting the PC to run from there
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let machine = CSTestMachineZ80()
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machine.setValue(0x0000, for: .programCounter)
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machine.setData(Data(bytes: program), atAddress: 0x0000)
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// Figure out the total number of cycles implied by the bus cycles
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var totalCycles: Int32 = 0
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for cycle in busCycles {
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totalCycles += Int32(cycle.length)
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}
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// Run the machine, capturing bus activity
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machine.captureBusActivity = true
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machine.runForNumber(ofCycles: totalCycles)
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// Check the results
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totalCycles = 0
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var index = 0
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var matches = true
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for cycle in machine.busOperationCaptures {
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let length = cycle.timeStamp - totalCycles
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totalCycles += length
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if index >= busCycles.count {
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// this can't be reached without one of the asserts failing;
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// it's to prevent an unintended exeception via out-of-bounds
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// array access
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break
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} else {
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if length != busCycles[index].length || cycle.operation != busCycles[index].operation {
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matches = false
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break;
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}
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}
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index += 1
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}
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XCTAssert(matches, "Z80 performed \(machine.busOperationCaptures); was expected to perform \(busCycles)")
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}
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// LD r, r
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func testLDrs() {
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test(
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program: [0x40],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4)
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]
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)
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}
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// LD r, n
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func testLDrn() {
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test(
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program: [0x3e, 0x00],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD r, (HL)
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func testLDrHL() {
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test(
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program: [0x46],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (HL), r
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func testLDHLr() {
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test(
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program: [0x70],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD r, (IX+d)
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func testLDrIXd() {
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test(
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program: [0xdd, 0x7e, 0x10],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .internalOperation, length: 5),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (IX+d), r
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func testLDIXdr() {
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test(
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program: [0xdd, 0x70, 0x10],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .internalOperation, length: 5),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD (HL), n
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func testLDHLn() {
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test(
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program: [0x36, 0x10],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD (IX+d), n
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func testLDIXdn() {
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test(
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program: [0xdd, 0x36, 0x10, 0x80],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 5),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD A, (DE)
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func testLDADE() {
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test(
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program: [0x1a],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (DE), A
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func testLDDEA() {
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test(
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program: [0x12],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD A, (nn)
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func testLDAinn() {
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test(
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program: [0x3a, 0x23, 0x45],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (nn), A
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func testLDinnA() {
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test(
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program: [0x32, 0x23, 0x45],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD A, I
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func testLDAI() {
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test(
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program: [0xed, 0x57],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 5),
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]
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)
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}
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// LD I, A
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func testLDIA() {
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test(
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program: [0xed, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 5),
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]
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)
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}
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// LD dd, nn
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func testLDddnn() {
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test(
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program: [0x01, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD IX, nn
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func testLDIXnn() {
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test(
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program: [0xdd, 0x21, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD HL, (nn)
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func testLDHLinn() {
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test(
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program: [0x2a, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (nn), HL
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func testLDinnHL() {
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test(
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program: [0x22, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD dd, (nn)
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func testLDddinn() {
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test(
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program: [0xed, 0x4b, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (nn), dd
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func testLDinndd() {
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test(
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program: [0xed, 0x43, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD IX, (nn)
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func testLDIXinn() {
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test(
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program: [0xdd, 0x2a, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// LD (nn), IX
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func testLDinnIX() {
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test(
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program: [0xdd, 0x22, 0x12, 0x47],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// LD SP, HL
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func testLDSPHL() {
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test(
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program: [0xf9],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 6),
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]
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)
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}
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// LD SP, IX
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func testLDSPIX() {
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test(
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program: [0xdd, 0xf9],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 6),
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]
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)
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}
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// PUSH qq
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func testPUSHqq() {
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test(
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program: [0xc5],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 5),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// PUSH IX
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func testPUSHIX() {
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test(
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program: [0xdd, 0xe5],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 5),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 3),
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]
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)
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}
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// POP qq
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func testPOPqq() {
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test(
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program: [0xe1],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// POP IX
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func testPOPIX() {
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test(
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program: [0xdd, 0xe1],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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]
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)
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}
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// EX DE, HL
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func testEXDEHL() {
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test(
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program: [0xeb],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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]
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)
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}
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// EX AF, AF'
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func testEXAFAFDd() {
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test(
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program: [0x08],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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]
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)
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}
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// EXX
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func testEXX() {
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test(
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program: [0xd9],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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]
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)
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}
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// EX (SP), HL
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func testEXSPHL() {
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test(
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program: [0xe3],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 4),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 5),
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]
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)
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}
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// EX (SP), IX
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func testEXSPIX() {
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test(
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program: [0xdd, 0xe3],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 4),
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MachineCycle(operation: .write, length: 3),
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MachineCycle(operation: .write, length: 5),
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]
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)
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}
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// LDI
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func testLDI() {
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test(
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program: [0xed, 0xa0],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 5),
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]
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)
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}
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// CPI (NB: I've diverted from the documentation by assuming the five-cycle 'write' is an internal operation)
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func testCPI() {
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test(
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program: [0xed, 0xa1],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .internalOperation, length: 5),
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]
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)
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}
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// LDIR
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func testLDIR() {
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|
test(
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program: [
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0x01, 0x02, 0x00, // LD BC, 2
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0xed, 0xb0, // LDIR
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0x00, 0x00, 0x00 // NOP, NOP, NOP
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|
],
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
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|
MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 5),
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MachineCycle(operation: .internalOperation, length: 5),
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|
MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .write, length: 5),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .readOpcode, length: 4),
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]
|
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)
|
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}
|
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|
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// CPIR (as per CPI; assumed no writes)
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|
func testCPIR() {
|
|
test(
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program: [
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0x01, 0x02, 0x00, // LD BC, 2
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0xed, 0xb1, // CPIR
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0x00, 0x00, 0x00 // NOP, NOP, NOP
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],
|
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busCycles: [
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MachineCycle(operation: .readOpcode, length: 4),
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MachineCycle(operation: .read, length: 3),
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MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD A,r
|
|
func testADDAr() {
|
|
test(
|
|
program: [0x80],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD A,n
|
|
func testADDAn() {
|
|
test(
|
|
program: [0xc6, 0x00],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD A,(HL)
|
|
func testADDAHL() {
|
|
test(
|
|
program: [0x86],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD A,(IX+d)
|
|
func testADDAIXd() {
|
|
test(
|
|
program: [0xdd, 0x86],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INC r, DEC r
|
|
func testINCrDECr() {
|
|
test(
|
|
program: [0x3c, 0x3d],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INC (HL), DEC (HL)
|
|
func testINCHLDECHL() {
|
|
test(
|
|
program: [0x34, 0x34],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// DAA, CPL, CCF, SCF, NOP, DI, EI, HALT
|
|
func testDAACPLCCFSCFNOPDIEIHALT() {
|
|
test(
|
|
program: [0x27, 0x2f, 0x3f, 0x37, 0x00, 0xf3, 0xfb, 0x76],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4), // one more for luck
|
|
]
|
|
)
|
|
}
|
|
|
|
// NEG, IM 0, IM 1, IM 2
|
|
func testNEGIMs() {
|
|
test(
|
|
program: [0xed, 0x44, 0xed, 0x46, 0xed, 0x56, 0xed, 0x5e],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD HL, rr
|
|
func testADDHL() {
|
|
test(
|
|
program: [0x09],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD IX, rr
|
|
func testADDIX() {
|
|
test(
|
|
program: [0xdd, 0x09],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// ADD A, (HL)
|
|
func testADCHL() {
|
|
test(
|
|
program: [0xed, 0x4a],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INC rr
|
|
func testINCss() {
|
|
test(
|
|
program: [0x03],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 6),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INC IX
|
|
func testINCIX() {
|
|
test(
|
|
program: [0xdd, 0x23],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 6),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RLCA
|
|
func testRLCA() {
|
|
test(
|
|
program: [0x07],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RLC r
|
|
func testRLCr() {
|
|
test(
|
|
program: [0xcb, 0x00],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RLC (HL)
|
|
func testRLCHL() {
|
|
test(
|
|
program: [0xcb, 0x06],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RLC (IX+d) (NB: the official table doesn't read the final part of the instruction; I've assumed a five-cycle version of read opcode replaces the internal operation)
|
|
func testRLCIX() {
|
|
test(
|
|
program: [0xdd, 0xcb, 0x00, 0x06],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RLD
|
|
func testRLD() {
|
|
test(
|
|
program: [0xed, 0x6f],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// BIT n,r
|
|
func testBITr() {
|
|
test(
|
|
program: [0xcb, 0x40],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// SET n,r
|
|
func testSETr() {
|
|
test(
|
|
program: [0xcb, 0xc0],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// BIT n,(HL)
|
|
func testBITHL() {
|
|
test(
|
|
program: [0xcb, 0x46],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// SET n,(HL)
|
|
func testSETHL() {
|
|
test(
|
|
program: [0xcb, 0xc6],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// BIT n,(IX+d)
|
|
func testBITIX() {
|
|
test(
|
|
program: [0xdd, 0xcb, 0x00, 0x46],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// SET n,(IX+d)
|
|
func testSETIX() {
|
|
test(
|
|
program: [0xdd, 0xcb, 0x00, 0xc6],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JP nn
|
|
func testJPnn() {
|
|
test(
|
|
program: [0xc3, 0x00, 0x80],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JP cc, nn
|
|
func testJPccnn() {
|
|
test(
|
|
program: [
|
|
0x37, // SCF
|
|
0xd2, 0x00, 0x80, // JP NC, 0x8000
|
|
0xda, 0x00, 0x80, // JP C, 0x8000
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JR e
|
|
func testJRe() {
|
|
test(
|
|
program: [0x18, 0x80],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JR cc, e
|
|
func testJRcce() {
|
|
test(
|
|
program: [
|
|
0x37, // SCF
|
|
0x30, 0x80, // JR NC, 0x8000
|
|
0x38, 0x80, // JR C, 0x8000
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JP (HL)
|
|
func testJPHL() {
|
|
test(
|
|
program: [0xe9],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// JP (IX)
|
|
func testJPIX() {
|
|
test(
|
|
program: [0xdd, 0xe9],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// DJNZ
|
|
func testDJNZ() {
|
|
test(
|
|
program: [
|
|
0x06, 0x02, // LD B, 2
|
|
0x10, 0xfe, // DJNZ -2
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// CALL
|
|
func testCALL() {
|
|
test(
|
|
program: [0xcd, 0x00, 0x80],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// CALL cc
|
|
func testCALLcc() {
|
|
test(
|
|
program: [
|
|
0x37, // SCF
|
|
0xd4, 0x00, 0x80, // CALL NC
|
|
0xdc, 0x00, 0x80 // CALL C
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RET
|
|
func testRET() {
|
|
test(
|
|
program: [0xc9],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RET cc
|
|
func testRETcc() {
|
|
test(
|
|
program: [
|
|
0x37, // SCF
|
|
0xd0, // RET NC
|
|
0xd8, // RET C
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RETI
|
|
func testRETI() {
|
|
test(
|
|
program: [0xed, 0x4d],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// RST
|
|
func testRST() {
|
|
test(
|
|
program: [0xc7],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .write, length: 3),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// IN A, (n)
|
|
func testINAn() {
|
|
test(
|
|
program: [0xdb, 0xfe],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .portRead, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// IN r, (C)
|
|
func testINrC() {
|
|
test(
|
|
program: [0xed, 0x40],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .portRead, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INI
|
|
func testINI() {
|
|
test(
|
|
program: [0xed, 0xa2],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .portRead, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// INIR
|
|
func testINIR() {
|
|
test(
|
|
program: [
|
|
0x01, 0x02, 0x00, // LD BC, 2
|
|
0xed, 0xb2, // INIR
|
|
0x00, 0x00, 0x00 // NOP, NOP, NOP
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .portRead, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .portRead, length: 4),
|
|
MachineCycle(operation: .write, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// OUT (n), A
|
|
func testOUTnA() {
|
|
test(
|
|
program: [0xd3, 0xfe],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .portWrite, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// OUT (C), r
|
|
func testOUTCr() {
|
|
test(
|
|
program: [0xed, 0x41],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .portWrite, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// OUTI
|
|
func testOUTI() {
|
|
test(
|
|
program: [0xed, 0xa3],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .portWrite, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
|
|
// OTIR
|
|
func testOTIR() {
|
|
test(
|
|
program: [
|
|
0x01, 0x02, 0x00, // LD BC, 2
|
|
0xed, 0xb3, // OTIR
|
|
0x00, 0x00, 0x00 // NOP, NOP, NOP
|
|
],
|
|
busCycles: [
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .read, length: 3),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .portWrite, length: 4),
|
|
MachineCycle(operation: .internalOperation, length: 5),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
MachineCycle(operation: .readOpcode, length: 5),
|
|
MachineCycle(operation: .read, length: 3),
|
|
MachineCycle(operation: .portWrite, length: 4),
|
|
|
|
MachineCycle(operation: .readOpcode, length: 4),
|
|
]
|
|
)
|
|
}
|
|
}
|