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59 lines
1.8 KiB
Swift
59 lines
1.8 KiB
Swift
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//
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// BCDTest.swift
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// Clock Signal
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//
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// Created by Thomas Harte on 04/10/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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import Foundation
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import XCTest
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class BCDTest: XCTestCase, CSTestMachineJamHandler {
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func testBCD() {
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if let filename = Bundle(for: type(of: self)).path(forResource: "BCDTEST_beeb", ofType: nil) {
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if let bcdTest = try? Data(contentsOf: URL(fileURLWithPath: filename)) {
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let machine = CSTestMachine()
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machine.jamHandler = self
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machine.setData(bcdTest, atAddress: 0x2900)
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// install a launchpad
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machine.setValue(0x20, forAddress:0x200) // JSR 0x2900
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machine.setValue(0x00, forAddress:0x201)
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machine.setValue(0x29, forAddress:0x202)
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machine.setValue(0x4c, forAddress:0x203) // JMP 0x0203
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machine.setValue(0x03, forAddress:0x204)
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machine.setValue(0x02, forAddress:0x205)
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machine.setValue(0x200, for: CSTestMachineRegister.programCounter)
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machine.setValue(CSTestMachineJamOpcode, forAddress:0xffee) // OSWRCH
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machine.setValue(CSTestMachineJamOpcode, forAddress:0xffff) // end of test
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while(machine.value(for: .programCounter) != 0x203) {
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machine.runForNumber(ofCycles: 1000)
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}
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XCTAssert(machine.value(forAddress:0x84) == 0, output)
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}
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}
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}
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fileprivate var output: String = ""
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func testMachine(_ machine: CSTestMachine!, didJamAtAddress address: UInt16) {
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switch address {
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case 0xffee:
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let character = machine.value(for: CSTestMachineRegister.A)
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output.append(Character(UnicodeScalar(character)!))
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machine.returnFromSubroutine()
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default:
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let hexAddress = String(format:"%04x", address)
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NSException(name: NSExceptionName(rawValue: "Failed Test"), reason: "Processor jammed unexpectedly at \(hexAddress)", userInfo: nil).raise()
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}
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}
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}
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