mirror of
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302 lines
10 KiB
Swift
302 lines
10 KiB
Swift
//
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// FUSETests.swift
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// Clock Signal
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//
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// Created by Thomas Harte on 21/05/2017.
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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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import Foundation
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fileprivate func readHexInt16(from scanner: Scanner) -> UInt16 {
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var temporary: UInt64 = 0
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scanner.scanHexInt64(&temporary)
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return UInt16(temporary)
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}
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fileprivate func readHexInt8(from scanner: Scanner) -> UInt8 {
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var temporary: UInt64 = 0
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scanner.scanHexInt64(&temporary)
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return UInt8(temporary)
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}
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fileprivate struct RegisterState {
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let af: UInt16, bc: UInt16, de: UInt16, hl: UInt16
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let afDash: UInt16, bcDash: UInt16, deDash: UInt16, hlDash: UInt16
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let ix: UInt16, iy: UInt16, sp: UInt16, pc: UInt16
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let i: UInt8, r: UInt8
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let iff1: Bool, iff2: Bool, interruptMode: Int
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let isHalted: Bool
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let memptr: UInt16
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let tStates: Int
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func set(onMachine machine: CSTestMachineZ80) {
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machine.setValue(af, for: .AF)
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machine.setValue(bc, for: .BC)
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machine.setValue(de, for: .DE)
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machine.setValue(hl, for: .HL)
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machine.setValue(afDash, for: .afDash)
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machine.setValue(bcDash, for: .bcDash)
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machine.setValue(deDash, for: .deDash)
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machine.setValue(hlDash, for: .hlDash)
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machine.setValue(ix, for: .IX)
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machine.setValue(iy, for: .IY)
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machine.setValue(sp, for: .stackPointer)
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machine.setValue(pc, for: .programCounter)
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machine.setValue(UInt16(i), for: .I)
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machine.setValue(UInt16(r), for: .R)
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machine.setValue(iff1 ? 1 : 0, for: .IFF1)
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machine.setValue(iff2 ? 1 : 0, for: .IFF2)
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machine.setValue(UInt16(interruptMode), for: .IM)
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machine.setValue(memptr, for: .memPtr)
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// TODO: isHalted
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}
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/*
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Re: bits 3 and 5; the FUSE tests seem to be inconsistent with other documentation
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in expectations as to 5 and 3 from the FDCB and DDCB pages. So I've disabled 3
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and 5 testing until I can make a value judgment.
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*/
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init(dictionary: [String: Any]) {
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// don't test bits 3 and 5 for now
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af = UInt16(truncating: dictionary["af"] as! NSNumber)
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bc = UInt16(truncating: dictionary["bc"] as! NSNumber)
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de = UInt16(truncating: dictionary["de"] as! NSNumber)
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hl = UInt16(truncating: dictionary["hl"] as! NSNumber)
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afDash = UInt16(truncating: dictionary["afDash"] as! NSNumber)
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bcDash = UInt16(truncating: dictionary["bcDash"] as! NSNumber)
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deDash = UInt16(truncating: dictionary["deDash"] as! NSNumber)
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hlDash = UInt16(truncating: dictionary["hlDash"] as! NSNumber)
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ix = UInt16(truncating: dictionary["ix"] as! NSNumber)
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iy = UInt16(truncating: dictionary["iy"] as! NSNumber)
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sp = UInt16(truncating: dictionary["sp"] as! NSNumber)
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pc = UInt16(truncating: dictionary["pc"] as! NSNumber)
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i = UInt8(truncating: dictionary["i"] as! NSNumber)
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r = UInt8(truncating: dictionary["r"] as! NSNumber)
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iff1 = (dictionary["iff1"] as! NSNumber).boolValue
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iff2 = (dictionary["iff2"] as! NSNumber).boolValue
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interruptMode = (dictionary["im"] as! NSNumber).intValue
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isHalted = (dictionary["halted"] as! NSNumber).boolValue
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memptr = UInt16(truncating: dictionary["memptr"] as! NSNumber)
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tStates = (dictionary["tStates"] as! NSNumber).intValue
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}
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init(machine: CSTestMachineZ80) {
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// don't test bits 3 and 5 for now
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af = machine.value(for: .AF)
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bc = machine.value(for: .BC)
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de = machine.value(for: .DE)
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hl = machine.value(for: .HL)
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afDash = machine.value(for: .afDash)
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bcDash = machine.value(for: .bcDash)
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deDash = machine.value(for: .deDash)
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hlDash = machine.value(for: .hlDash)
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ix = machine.value(for: .IX)
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iy = machine.value(for: .IY)
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sp = machine.value(for: .stackPointer)
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pc = machine.value(for: .programCounter)
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i = UInt8(machine.value(for: .I))
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r = UInt8(machine.value(for: .R))
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iff1 = machine.value(for: .IFF1) != 0
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iff2 = machine.value(for: .IFF2) != 0
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interruptMode = Int(machine.value(for: .IM))
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isHalted = machine.isHalted
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tStates = 0 // TODO (?)
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memptr = machine.value(for: .memPtr)
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}
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}
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extension RegisterState: Equatable {}
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fileprivate func ==(lhs: RegisterState, rhs: RegisterState) -> Bool {
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return lhs.af == rhs.af &&
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lhs.bc == rhs.bc &&
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lhs.de == rhs.de &&
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lhs.hl == rhs.hl &&
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(lhs.afDash & ~0x0028) == (rhs.afDash & ~0x0028) &&
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lhs.bcDash == rhs.bcDash &&
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lhs.deDash == rhs.deDash &&
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lhs.hlDash == rhs.hlDash &&
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lhs.ix == rhs.ix &&
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lhs.iy == rhs.iy &&
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lhs.sp == rhs.sp &&
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lhs.pc == rhs.pc &&
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lhs.i == rhs.i &&
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lhs.r == rhs.r &&
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lhs.iff1 == rhs.iff1 &&
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lhs.iff2 == rhs.iff2 &&
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lhs.interruptMode == rhs.interruptMode &&
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lhs.isHalted == rhs.isHalted &&
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lhs.memptr == rhs.memptr
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}
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class FUSETests: XCTestCase {
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func testFUSE() {
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let inputFilename: String! = Bundle(for: type(of: self)).path(forResource: "tests.in", ofType: "json")
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let outputFilename: String! = Bundle(for: type(of: self)).path(forResource: "tests.expected", ofType: "json")
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XCTAssert(inputFilename != nil && outputFilename != nil)
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let inputData: Data! = try? Data(contentsOf: URL(fileURLWithPath: inputFilename))
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let outputData: Data! = try? Data(contentsOf: URL(fileURLWithPath: outputFilename))
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XCTAssert(inputData != nil && outputData != nil)
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let inputArray: [Any]! = try! JSONSerialization.jsonObject(with: inputData, options: []) as? [Any]
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let outputArray: [Any]! = try! JSONSerialization.jsonObject(with: outputData, options: []) as? [Any]
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XCTAssert(inputArray != nil && outputArray != nil)
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var index = 0
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for item in inputArray {
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let itemDictionary = item as! [String: Any]
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let outputDictionary = outputArray[index] as! [String: Any]
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index = index + 1
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let name = itemDictionary["name"] as! String
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// Provisionally skip the FUSE HALT test. It tests PC during a HALT; this emulator advances
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// it only upon interrupt, FUSE seems to increment it and then stay still. I need to find
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// out which of those is correct.
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if name == "76" {
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continue
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}
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// if name != "10" {
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// continue;
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// }
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// print("\(name)")
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let initialState = RegisterState(dictionary: itemDictionary["state"] as! [String: Any])
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let targetState = RegisterState(dictionary: outputDictionary["state"] as! [String: Any])
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let machine = CSTestMachineZ80()
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machine.portLogic = .returnUpperByte
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machine.captureBusActivity = true
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initialState.set(onMachine: machine)
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let inputMemoryGroups = itemDictionary["memory"] as? [Any]
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if let inputMemoryGroups = inputMemoryGroups {
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for group in inputMemoryGroups {
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let groupDictionary = group as! [String: Any]
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var address = UInt16(truncating: groupDictionary["address"] as! NSNumber)
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let data = groupDictionary["data"] as! [NSNumber]
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for value in data {
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machine.setValue(UInt8(truncating: value), atAddress: address)
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address = address + 1
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}
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}
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}
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machine.runForNumber(ofCycles: Int32(targetState.tStates))
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// Verify that exactly the right number of cycles was hit; this is a primitive cycle length tester.
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let halfCyclesRun = machine.completedHalfCycles
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XCTAssert(halfCyclesRun == Int32(targetState.tStates) * 2, "Instruction length off; was \(machine.completedHalfCycles) but should be \(targetState.tStates * 2): \(name)")
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let finalState = RegisterState(machine: machine)
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// Compare processor state.
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XCTAssertEqual(finalState, targetState, "Failed processor state \(name)")
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// Compare memory state.
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let outputMemoryGroups = outputDictionary["memory"] as? [Any]
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if let outputMemoryGroups = outputMemoryGroups {
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for group in outputMemoryGroups {
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let groupDictionary = group as! [String: Any]
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var address = UInt16(truncating: groupDictionary["address"] as! NSNumber)
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let data = groupDictionary["data"] as! [NSNumber]
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for value in data {
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XCTAssert(machine.value(atAddress: address) == UInt8(truncating: value), "Failed memory state \(name)")
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address = address + 1
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}
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}
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}
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// Compare bus operations.
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// let capturedBusActivity = machine.busOperationCaptures
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// var capturedBusAcivityIndex = 0;
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// I presently believe the FUSE unit test bus results for DJNZ — opcode 0x10 — to be
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// in error by omitting the final offset read. Therefore I am skipping that.
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// TODO: enquire with the author.
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// if name == "10" {
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// continue
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// }
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/* let desiredBusActivity = outputDictionary["busActivity"] as? [[String: Any]]
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if let desiredBusActivity = desiredBusActivity {
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for action in desiredBusActivity {
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let type = action["type"] as! String
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let time = action["time"] as! Int32
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let address = action["address"] as! UInt16
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let value = action["value"] as? UInt8
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if type == "MC" || type == "PC" {
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// Don't do anything with FUSE's contended memory records; it's
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// presently unclear to me exactly what they're supposed to communicate
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continue
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}
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// FUSE counts a memory access as occurring at the last cycle of its bus operation;
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// it counts a port access as occurring on the second. timeOffset is used to adjust
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// the FUSE numbers as required.
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var operation: CSTestMachineZ80BusOperationCaptureOperation = .read
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var alternativeOperation: CSTestMachineZ80BusOperationCaptureOperation = .read
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var timeOffset: Int32 = 0
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switch type {
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case "MR":
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operation = .read
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alternativeOperation = .readOpcode
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case "MW":
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alternativeOperation = .write
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operation = .write
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case "PR":
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alternativeOperation = .portRead
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operation = .portRead
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timeOffset = 3
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case "PW":
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alternativeOperation = .portWrite
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operation = .portWrite
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timeOffset = 3
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default:
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print("Unhandled activity type \(type)!")
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}
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XCTAssert(
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capturedBusActivity[capturedBusAcivityIndex].address == address &&
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capturedBusActivity[capturedBusAcivityIndex].value == value! &&
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capturedBusActivity[capturedBusAcivityIndex].timeStamp == (time + timeOffset) &&
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(
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capturedBusActivity[capturedBusAcivityIndex].operation == operation ||
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capturedBusActivity[capturedBusAcivityIndex].operation == alternativeOperation
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),
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"Failed bus operation match \(name) (at time \(time) with address \(address), value was \(value != nil ? value! : 0), tracking index \(capturedBusAcivityIndex) amongst \(capturedBusActivity))")
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capturedBusAcivityIndex += 1
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}
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}*/
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}
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}
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}
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