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121 lines
3.4 KiB
Swift
121 lines
3.4 KiB
Swift
//
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// Z80MemptrTests.swift
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// Clock Signal
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//
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// Created by Thomas Harte on 21/07/2017.
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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 Z80MemptrTests: XCTestCase {
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private let machine = CSTestMachineZ80()
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private func test(program : [UInt8], length : Int32, initialValue : UInt16) -> UInt16 {
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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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machine.setValue(0x0000, for: .programCounter)
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machine.setData(Data(bytes: program), atAddress: 0x0000)
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// Set the initial value of memptr, run for the requested number of cycles,
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// return the new value
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machine.setValue(initialValue, for: .memPtr)
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machine.runForNumber(ofCycles: length)
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return machine.value(for: .memPtr)
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}
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// LD A, (addr)
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func testLDAnn() {
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var program: [UInt8] = [
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0x3a, 0x00, 0x00
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]
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for addr in 0 ..< 65536 {
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program[1] = UInt8(addr & 0x00ff)
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program[2] = UInt8(addr >> 8)
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let expectedResult = UInt16((addr + 1) & 0xffff)
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let result = test(program: program, length: 13, initialValue: 0xffff)
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XCTAssertEqual(result, expectedResult)
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}
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}
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// LD A, (rp)
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func testLDArp() {
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let bcProgram: [UInt8] = [
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0x0a
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]
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let deProgram: [UInt8] = [
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0x1a
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]
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for addr in 0 ..< 65536 {
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machine.setValue(UInt16(addr), for: .BC)
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machine.setValue(UInt16(addr), for: .DE)
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let expectedResult = UInt16((addr + 1) & 0xffff)
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let bcResult = test(program: bcProgram, length: 7, initialValue: 0xffff)
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let deResult = test(program: deProgram, length: 7, initialValue: 0xffff)
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XCTAssertEqual(bcResult, expectedResult)
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XCTAssertEqual(deResult, expectedResult)
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}
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}
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// LD (addr), rp
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func testLDnnrp() {
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var hlBaseProgram: [UInt8] = [
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0x22, 0x00, 0x00
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]
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var bcEDProgram: [UInt8] = [
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0xed, 0x43, 0x00, 0x00
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]
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var deEDProgram: [UInt8] = [
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0xed, 0x53, 0x00, 0x00
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]
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var hlEDProgram: [UInt8] = [
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0xed, 0x63, 0x00, 0x00
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]
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var spEDProgram: [UInt8] = [
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0xed, 0x73, 0x00, 0x00
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]
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var ixProgram: [UInt8] = [
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0xdd, 0x22, 0x00, 0x00
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]
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var iyProgram: [UInt8] = [
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0xfd, 0x22, 0x00, 0x00
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]
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for addr in 0 ..< 65536 {
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hlBaseProgram[1] = UInt8(addr & 0x00ff)
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hlBaseProgram[2] = UInt8(addr >> 8)
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bcEDProgram[2] = UInt8(addr & 0x00ff)
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bcEDProgram[3] = UInt8(addr >> 8)
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deEDProgram[2] = UInt8(addr & 0x00ff)
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deEDProgram[3] = UInt8(addr >> 8)
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hlEDProgram[2] = UInt8(addr & 0x00ff)
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hlEDProgram[3] = UInt8(addr >> 8)
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spEDProgram[2] = UInt8(addr & 0x00ff)
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spEDProgram[3] = UInt8(addr >> 8)
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ixProgram[2] = UInt8(addr & 0x00ff)
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ixProgram[3] = UInt8(addr >> 8)
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iyProgram[2] = UInt8(addr & 0x00ff)
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iyProgram[3] = UInt8(addr >> 8)
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let expectedResult = UInt16((addr + 1) & 0xffff)
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XCTAssertEqual(test(program: hlBaseProgram, length: 16, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: bcEDProgram, length: 20, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: deEDProgram, length: 20, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: hlEDProgram, length: 20, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: spEDProgram, length: 20, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: ixProgram, length: 20, initialValue: 0xffff), expectedResult)
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XCTAssertEqual(test(program: iyProgram, length: 20, initialValue: 0xffff), expectedResult)
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}
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}
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}
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