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428 lines
14 KiB
Swift
428 lines
14 KiB
Swift
//
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// WolfgangLorenzTests.swift
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// Clock Signal
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//
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// Created by Thomas Harte on 16/07/2015.
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// Copyright 2015 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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class WolfgangLorenzTests: XCTestCase, CSTestMachineTrapHandler {
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// MARK: - 6502 Tests
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func testStart() {
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runTest(" start", processor: .processor6502)
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}
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func testLDA() {
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runTest("lda", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testSTA() {
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runTest("sta", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testLDX() {
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runTest("ldx", suffixes: ["b", "z", "zy", "a", "ay"], processor: .processor6502)
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}
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func testSTX() {
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runTest("stx", suffixes: ["z", "zy", "a"], processor: .processor6502)
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}
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func testLDY() {
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runTest("ldy", suffixes: ["b", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testSTY() {
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runTest("sty", suffixes: ["z", "zx", "a"], processor: .processor6502)
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}
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func testTransfers() {
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testTransfers(processor: .processor6502)
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}
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func testStack() {
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testStack(processor: .processor6502)
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}
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func testIncsAndDecs() {
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testIncsAndDecs(processor: .processor6502)
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}
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func testASL() {
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runTest("asl", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testLSR() {
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runTest("lsr", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testROL() {
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runTest("rol", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testROR() {
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runTest("ror", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testAND() {
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runTest("and", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testORA() {
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runTest("ora", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testEOR() {
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runTest("eor", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testFlagManipulation() {
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testFlagManipulation(processor: .processor6502)
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}
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func testADC() {
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runTest("adc", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testSBC() {
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runTest("sbc", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testCompare() {
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testCompare(processor: .processor6502)
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}
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func testBIT() {
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runTest("bit", suffixes: ["z", "a"], processor: .processor6502)
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}
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func testFlow() {
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testFlow(processor: .processor6502)
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}
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func testBranch() {
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testBranch(processor: .processor6502)
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}
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func testNOP() {
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runTest("nop", suffixes: ["n", "b", "z", "zx", "a", "ax"], processor: .processor6502)
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}
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func testASO() {
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runTest("aso", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testRLA() {
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runTest("rla", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testLSE() {
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runTest("lse", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testRRA() {
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runTest("rra", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testDCM() {
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runTest("dcm", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testINS() {
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runTest("ins", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testLAX() {
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runTest("lax", suffixes: ["z", "zy", "a", "ay", "ix", "iy"], processor: .processor6502)
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}
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func testAXS() {
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runTest("axs", suffixes: ["z", "zy", "a", "ix"], processor: .processor6502)
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}
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func testALR() {
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runTest("alrb", processor: .processor6502)
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}
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func testARR() {
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runTest("arrb", processor: .processor6502)
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}
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func testSBX() {
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runTest("sbxb", processor: .processor6502)
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}
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func testSHA() {
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runTest("sha", suffixes: ["ay", "iy"], processor: .processor6502)
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}
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func testSHX() {
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runTest("shxay", processor: .processor6502)
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}
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func testSHY() {
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runTest("shyax", processor: .processor6502)
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}
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func testSHS() {
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runTest("shsay", processor: .processor6502)
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}
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func testLXA() {
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runTest("lxab", processor: .processor6502)
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}
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func testANE() {
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runTest("aneb", processor: .processor6502)
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}
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func testANC() {
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runTest("ancb", processor: .processor6502)
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}
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func testLAS() {
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runTest("lasay", processor: .processor6502)
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}
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func testSBCB() {
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runTest("sbcb(eb)", processor: .processor6502)
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}
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// MARK: - 65816 Tests
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func testStart65816() {
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runTest(" start", processor: .processor65816)
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}
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func testLDA65816() {
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runTest("lda", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor65816)
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}
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func testSTA65816() {
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runTest("sta", suffixes: ["z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor65816)
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}
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func testLDX65816() {
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runTest("ldx", suffixes: ["b", "z", "zy", "a", "ay"], processor: .processor65816)
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}
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func testSTX65816() {
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runTest("stx", suffixes: ["z", "zy", "a"], processor: .processor65816)
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}
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func testLDY65816() {
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runTest("ldy", suffixes: ["b", "z", "zx", "a", "ax"], processor: .processor65816)
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}
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func testSTY65816() {
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runTest("sty", suffixes: ["z", "zx", "a"], processor: .processor65816)
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}
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func testTransfers65816() {
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testTransfers(processor: .processor65816)
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}
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func testStack65816() {
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testStack(processor: .processor65816)
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}
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func testIncsAndDecs65816() {
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testIncsAndDecs(processor: .processor65816)
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}
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func testASL65816() {
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runTest("asl", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor65816)
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}
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func testLSR65816() {
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runTest("lsr", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor65816)
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}
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func testROL65816() {
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runTest("rol", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor65816)
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}
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func testROR65816() {
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runTest("ror", suffixes: ["n", "z", "zx", "a", "ax"], processor: .processor65816)
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}
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func testAND65816() {
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runTest("and", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor65816)
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}
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func testORA65816() {
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runTest("ora", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor65816)
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}
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func testEOR65816() {
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runTest("eor", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: .processor65816)
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}
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func testFlagManipulation65816() {
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testFlagManipulation(processor: .processor65816)
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}
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/*
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ADC and SBC tests don't apply, as the 65816 follows the 65C02 in setting flags based on the outcome of decimal
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results, whereas Lorenzz's tests expect the original 6502 behaviour of setting flags based an intermediate value.
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*/
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func testCompare65816() {
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testCompare(processor: .processor65816)
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}
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func testBIT65816() {
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runTest("bit", suffixes: ["z", "a"], processor: .processor65816)
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}
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/*
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The flow tests don't apply; the 65816 [and 65C02] reset the decimal flag upon a BRK, but the 6502 that Lorenz
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tests doesn't do so.
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*/
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func testBranch65816() {
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testBranch(processor: .processor65816)
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}
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/* The NOP tests also don't apply; the 65816 has only one, well-defined NOP. */
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// MARK: - Collections
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func testTransfers(processor: CSTestMachine6502Processor) {
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for test in ["taxn", "tayn", "txan", "tyan", "tsxn", "txsn"] {
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runTest(test, processor: processor)
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}
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}
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func testStack(processor: CSTestMachine6502Processor) {
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for test in ["phan", "plan", "phpn", "plpn"] {
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runTest(test, processor: processor)
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}
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}
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func testIncsAndDecs(processor: CSTestMachine6502Processor) {
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for test in ["inxn", "inyn", "dexn", "deyn", "incz", "inczx", "inca", "incax", "decz", "deczx", "deca", "decax"] {
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runTest(test, processor: processor)
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}
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}
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func testFlagManipulation(processor: CSTestMachine6502Processor) {
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for test in ["clcn", "secn", "cldn", "sedn", "clin", "sein", "clvn"] {
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runTest(test, processor: processor)
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}
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}
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func testCompare(processor: CSTestMachine6502Processor) {
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runTest("cmp", suffixes: ["b", "z", "zx", "a", "ax", "ay", "ix", "iy"], processor: processor)
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runTest("cpx", suffixes: ["b", "z", "a"], processor: processor)
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runTest("cpy", suffixes: ["b", "z", "a"], processor: processor)
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}
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func testFlow(processor: CSTestMachine6502Processor) {
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for test in ["brkn", "rtin", "jsrw", "rtsn", "jmpw", "jmpi"] {
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// JMP indirect is explicitly different on a 65C02 and 65816, not having
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// the page wraparound bug. So run that test only on a plain 6502.
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if test == "jmpi" && processor != .processor6502 {
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continue;
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}
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runTest(test, processor: processor)
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}
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}
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func testBranch(processor: CSTestMachine6502Processor) {
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for test in ["beqr", "bner", "bmir", "bplr", "bcsr", "bccr", "bvsr", "bvcr"] {
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runTest(test, processor: processor)
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}
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}
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// MARK: - Test Running
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fileprivate func runTest(_ name: String, suffixes: [String], processor: CSTestMachine6502Processor) {
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for suffix in suffixes {
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let testName = name + suffix
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runTest(testName, processor: processor)
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}
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}
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fileprivate var output: String = ""
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fileprivate func runTest(_ name: String, processor: CSTestMachine6502Processor) {
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var machine: CSTestMachine6502!
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if let filename = Bundle(for: type(of: self)).path(forResource: name, ofType: nil) {
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if let testData = try? Data(contentsOf: URL(fileURLWithPath: filename)) {
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machine = CSTestMachine6502(processor: processor)
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machine.trapHandler = self
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output = ""
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let dataPointer = (testData as NSData).bytes.bindMemory(to: UInt8.self, capacity: testData.count)
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let loadAddress = UInt32(dataPointer[0]) | (UInt32(dataPointer[1]) << 8)
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let contents = testData.subdata(in: 2 ..< testData.count)
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machine.setData(contents, atAddress: loadAddress)
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// Cf. http://www.softwolves.com/arkiv/cbm-hackers/7/7114.html for the steps being taken here.
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// Initialise memory locations as instructed.
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machine.setValue(0x00, forAddress: 0x0002)
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machine.setValue(0x00, forAddress: 0xa002)
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machine.setValue(0x80, forAddress: 0xa003)
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machine.setValue(0xff, forAddress: 0x01fe)
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machine.setValue(0x7f, forAddress: 0x01ff)
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machine.setValue(0x48, forAddress: 0xfffe)
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machine.setValue(0xff, forAddress: 0xffff)
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// Place the Commodore's default IRQ handler.
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let irqHandler: [UInt8] = [
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0x48, 0x8a, 0x48, 0x98, 0x48, 0xba, 0xbd, 0x04, 0x01,
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0x29, 0x10, 0xf0, 0x03, 0x6c, 0x16, 0x03, 0x6c, 0x14, 0x03
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]
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machine.setData(Data(irqHandler), atAddress: 0xff48)
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// Set a couple of trap addresses to capture test output.
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machine.addTrapAddress(0xffd2) // print character
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machine.addTrapAddress(0xffe4) // scan keyboard
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// Set a couple of test addresses that indicate failure.
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machine.addTrapAddress(0x8000) // exit
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machine.addTrapAddress(0xa474) // exit
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// Ensure that any of those addresses return control.
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machine.setValue(0x60, forAddress:0xffd2) // 0x60 is RTS
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machine.setValue(0x60, forAddress:0xffe4)
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machine.setValue(0x60, forAddress:0x8000)
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machine.setValue(0x60, forAddress:0xa474)
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// Commodore's load routine resides at $e16f; this is used to spot the end of a test.
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machine.setData(Data([0x4c, 0x6f, 0xe1]), atAddress: 0xe16f)
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// Seed program entry.
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machine.setValue(0x0801, for: .programCounter)
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machine.setValue(0xfd, for: .stackPointer)
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machine.setValue(0x04, for: .flags)
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// For consistency when debugging; otherwise immaterial.
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machine.setValue(0x00, for: .A)
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machine.setValue(0x00, for: .X)
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machine.setValue(0x00, for: .Y)
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}
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}
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if machine == nil {
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NSException(name: NSExceptionName(rawValue: "Failed Test"), reason: "Couldn't load file \(name)", userInfo: nil).raise()
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}
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while machine.value(for: .lastOperationAddress) != 0xe16f && !machine.isJammed {
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machine.runForNumber(ofCycles: 1000)
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}
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if machine.isJammed {
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let hexAddress = String(format:"%04x", machine.value(for: .lastOperationAddress))
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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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func petsciiToString(_ string: String) -> String {
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let petsciiToCharCommon: [String] = [
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"?", "?", "?", "[RUN/STOP]", "?", "[WHT]", "?", "?", "[SHIFT DISABLE]", "[SHIFT ENABLE]", "?", "?", "?", "\r", "[TEXT MODE]", "?",
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"?", "\n", "[RVS ON]", "[HOME]", "[DEL]", "?", "?", "?", "?", "?", "?", "?", "[RED]", "[RIGHT]", "[GRN]", "[BLU]",
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" ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "*", "+", ",", "-", ".", "/",
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";", "<", "=", ">", "?",
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];
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let petsciiToCharRegular: [String] = [
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"@", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
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"p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "[", "£", "]", "↑", "←",
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]
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let petsciiToCharInverse: [String] = [
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"@", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
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"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "[", "£", "]", "↑", "←",
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]
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var result: String = ""
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for character in string.utf16 {
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let charInt: Int = Int(character)
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var stringToAppend = ""
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if charInt&0x7f < petsciiToCharCommon.count {
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stringToAppend = petsciiToCharCommon[charInt&0x7f]
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} else {
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let lookupTable = (charInt > 0x80) ? petsciiToCharInverse : petsciiToCharRegular
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let lookupIndex = (charInt&0x7f) - petsciiToCharCommon.count
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if lookupIndex < lookupTable.count {
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stringToAppend = lookupTable[lookupIndex]
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} else {
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stringToAppend += "!"
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}
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}
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result += stringToAppend
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}
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return result
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}
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func testMachine(_ testMachine: CSTestMachine, didTrapAtAddress address: UInt16) {
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let testMachine6502 = testMachine as! CSTestMachine6502
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switch address {
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case 0xffd2:
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testMachine6502.setValue(0x00, forAddress: 0x030c)
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let character = testMachine6502.value(for: CSTestMachine6502Register.A)
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output.append(Character(UnicodeScalar(character)!))
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case 0xffe4:
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testMachine6502.setValue(0x3, for:CSTestMachine6502Register.A)
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case 0x8000, 0xa474:
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NSException(name: NSExceptionName(rawValue: "Failed test"), reason: petsciiToString(output), userInfo: nil).raise()
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case 0x0000:
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NSException(name: NSExceptionName(rawValue: "Failed test"), reason: "Execution hit 0000", userInfo: nil).raise()
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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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