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CLK/OSBindings/Mac/Clock SignalTests/TimingTests.swift

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Removed the implicit reset upon 6502 startup, adding a reset line. Hence all tests now pass again. Added an empty shell for timing tests, the all-RAM 6502 now counting bus cycles.
2015-08-12 23:51:06 +00:00
//
// TimingTests.swift
// Clock Signal
//
// Created by Thomas Harte on 13/08/2015.
// Copyright © 2015 Thomas Harte. All rights reserved.
//
import Foundation
import XCTest
Added one basic timing test, for now: implied nop should be two cycles.
2015-08-13 00:06:56 +00:00
class TimingTests: XCTestCase, CSTestMachineJamHandler {
private var endTime: UInt32 = 0
func testImpliedNOP() {
let code: [UInt8] = [0xea, CSTestMachineJamOpcode]
self.runTest(code, expectedRunLength: 2)
}
Added a couple of timing tests, both of which seem to pass for now.
2015-08-13 00:55:23 +00:00
func testLDA() {
let code: [UInt8] = [
0xa9, 0x00, // [2] LDA #$00
0xa5, 0x00, // [3] LDA $00
0xb5, 0x00, // [4] LDA $00,X
0xad, 0x00, 0x00, // [4] LDA $0000
0xbd, 0x00, 0x00, // [4] LDA $0000, x (no wrap)
0xbd, 0x02, 0x00, // [5] LDA $0002, x (wrap)
0xb9, 0x00, 0x00, // [4] LDA $0000, y (no wrap)
0xb9, 0x10, 0x00, // [5] LDA $0010, y (wrap)
0xa1, 0x44, // [6] LDA ($44, x)
0xb1, 0x00, // [5] LDA ($00), y (no wrap)
0xb1, 0x02, // [6] LDA ($01), y (wrap)
CSTestMachineJamOpcode]
self.runTest(code, expectedRunLength: 48)
}
func testBCS() {
let code: [UInt8] = [
0x18, // [2] CLC
0xb0, 0xff, // [2] BCS -1 (not taken)
0x90, 0x7f, // [3] BCC +7f (taken)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x90, 0x00, // [3] BCC 0 (taken)
0x90, 0x7f, // [4] BCC +6f (taken, page wrap)
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
CSTestMachineJamOpcode]
self.runTest(code, expectedRunLength: 14)
}
Added a quick snippet test, discovering that I've cut a cycle from read/modify/writes.
2015-08-13 01:18:41 +00:00
func testSnippet1() {
let code: [UInt8] = [
0x8d, 0x08, 0x00, // [4] STA $0008
0xc6, 0xb4, // [5] DEC $B4
CSTestMachineJamOpcode]
self.runTest(code, expectedRunLength: 9)
}
Added one basic timing test, for now: implied nop should be two cycles.
2015-08-13 00:06:56 +00:00
func runTest(code: [UInt8], expectedRunLength: UInt32) {
let machine = CSTestMachine()
machine.jamHandler = self
let immediateCode = NSData(bytes: code, length: code.count)
machine.setData(immediateCode, atAddress: 0x200)
Added a couple of timing tests, both of which seem to pass for now.
2015-08-13 00:55:23 +00:00
machine.setValue(0x00, forAddress: 0x0000)
machine.setValue(0x00, forAddress: 0x0001)
machine.setValue(0xff, forAddress: 0x0002)
machine.setValue(0x00, forAddress: 0x0003)
Added one basic timing test, for now: implied nop should be two cycles.
2015-08-13 00:06:56 +00:00
machine.setValue(0x200, forRegister: CSTestMachineRegister.ProgramCounter)
Added a couple of timing tests, both of which seem to pass for now.
2015-08-13 00:55:23 +00:00
machine.setValue(0xff, forRegister: CSTestMachineRegister.X)
machine.setValue(0xfe, forRegister: CSTestMachineRegister.Y)
Added one basic timing test, for now: implied nop should be two cycles.
2015-08-13 00:06:56 +00:00
self.endTime = 0
while self.endTime == 0 {
machine.runForNumberOfCycles(10)
}
XCTAssert(self.endTime == expectedRunLength, "Took \(self.endTime) cycles to perform")
}
func testMachine(machine: CSTestMachine!, didJamAtAddress address: UInt16) {
if self.endTime == 0 {
Added a couple of timing tests, both of which seem to pass for now.
2015-08-13 00:55:23 +00:00
self.endTime = machine.timestamp - 7
Added one basic timing test, for now: implied nop should be two cycles.
2015-08-13 00:06:56 +00:00
}
}
Removed the implicit reset upon 6502 startup, adding a reset line. Hence all tests now pass again. Added an empty shell for timing tests, the all-RAM 6502 now counting bus cycles.
2015-08-12 23:51:06 +00:00
}
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