1
0
mirror of https://github.com/TomHarte/CLK.git synced 2024-10-31 18:04:37 +00:00
CLK/OSBindings/Mac/Clock SignalTests/NeskellTests.swift

83 lines
2.9 KiB
Swift

//
// KlausDormanTests.swift
// Clock Signal
//
// Created by Thomas Harte on 16/07/2015.
// Copyright 2015 Thomas Harte. All rights reserved.
//
import Foundation
import XCTest
// The below reuses the Neskell https://github.com/blitzcode/neskell tests and therefore attempts to transcribe
// https://github.com/blitzcode/neskell/blob/b4bfec6d6f0cf88d8d2de61585017d16a37e3b9a/src/Test.hs
class NeskellTests: XCTestCase {
private func runTest(resource: String, codeAddress: UInt32) -> CSTestMachine6502? {
if let filename = Bundle(for: type(of: self)).path(forResource: resource, ofType: "bin") {
if let functionalTest = try? Data(contentsOf: URL(fileURLWithPath: filename)) {
let machine = CSTestMachine6502(processor: .processor6502)
machine.setData(functionalTest, atAddress: codeAddress)
machine.setValue(UInt16(codeAddress), for: .programCounter)
machine.setValue(0xff, for: .stackPointer)
// Install the halt-forever trailer.
let targetAddress = UInt32(codeAddress + UInt32(functionalTest.count))
let infiniteStop = Data([0x4c, UInt8(targetAddress & 0xff), UInt8((targetAddress >> 8) & 0xff)]) // i.e. JMP to self.
machine.setData(infiniteStop, atAddress: targetAddress)
while true {
let oldPC = machine.value(for: .lastOperationAddress)
machine.runForNumber(ofCycles: 1000)
let newPC = machine.value(for: .lastOperationAddress)
if newPC == oldPC {
return machine
}
}
}
}
return nil
}
private func assertStack(machine: CSTestMachine6502, contents: [UInt8]) {
let stackStart = UInt32(0x101 + machine.value(for: .stackPointer))
let stackLength = UInt32(0x200 - stackStart)
let stackData = machine.data(atAddress: stackStart, length: stackLength)
XCTAssertEqual(stackData.count, contents.count);
if stackData.count != contents.count {
return
}
for c in 0 ..< stackData.count {
XCTAssertEqual(stackData[c], contents[c], "Index \(c)")
}
}
func testAHX_TAS_SHX_SHY() {
if let result = runTest(resource: "ahx_tas_shx_shy_test", codeAddress: 0x600) {
XCTAssertEqual(result.value(for: .stackPointer), 0xf2)
assertStack(machine: result, contents: [0x01, 0xC9, 0x01, 0x80, 0xC0, 0xE0, 0x01, 0x55, 0x80, 0x80, 0x01, 0x34, 0x10]);
}
}
func testAHX_TAS_SHX_SHY_pagecross() {
if let result = runTest(resource: "ahx_tas_shx_shy_pagecross_test", codeAddress: 0x600) {
XCTAssertEqual(result.value(for: .stackPointer), 0xf5)
assertStack(machine: result, contents: [0x42, 0x42, 0x41, 0x41, 0x00, 0x01, 0xCE, 0xCF, 0xC0, 0xD0]);
}
}
func testBCD() {
if let result = runTest(resource: "bcd_add_sub_test", codeAddress: 0x600) {
XCTAssertEqual(result.value(for: .stackPointer), 0xf6)
XCTAssertEqual(result.value(for: .flags), 0xbc) // Diverge from original in taking B as set when magically
// peaking inside.
assertStack(machine: result, contents: [0x87, 0x91, 0x29, 0x27, 0x34, 0x73, 0x41, 0x46, 0x05]);
}
}
}