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Removes usage of a JAM instruction to spot end-of-tests.

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This commit is contained in:
Thomas Harte 2020-10-09 21:39:34 -04:00
parent 0ed98cbfac
commit 9b6c48631d
1 changed files with 16 additions and 11 deletions
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27
OSBindings/Mac/Clock SignalTests/WolfgangLorenzTests.swift
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@ -202,7 +202,6 @@ class WolfgangLorenzTests: XCTestCase, CSTestMachineTrapHandler {
machine = CSTestMachine6502(processor: .processor6502)
machine.trapHandler = self
// machine.logActivity = true
output = ""
let dataPointer = (testData as NSData).bytes.bindMemory(to: UInt8.self, capacity: testData.count)
@ -211,6 +210,9 @@ class WolfgangLorenzTests: XCTestCase, CSTestMachineTrapHandler {
machine.setData(contents, atAddress: loadAddress)
// Cf. http://www.softwolves.com/arkiv/cbm-hackers/7/7114.html for the steps being taken here.
// Initialise memory locations as instructed.
machine.setValue(0x00, forAddress: 0x0002)
machine.setValue(0x00, forAddress: 0xa002)
machine.setValue(0x80, forAddress: 0xa003)
@ -219,28 +221,34 @@ class WolfgangLorenzTests: XCTestCase, CSTestMachineTrapHandler {
machine.setValue(0x48, forAddress: 0xfffe)
machine.setValue(0xff, forAddress: 0xffff)
// Place the Commodore's default IRQ handler.
let irqHandler: [UInt8] = [
0x48, 0x8a, 0x48, 0x98, 0x48, 0xba, 0xbd, 0x04, 0x01,
0x29, 0x10, 0xf0, 0x03, 0x6c, 0x16, 0x03, 0x6c, 0x14, 0x03
]
machine.setData(Data(irqHandler), atAddress: 0xff48)
// Set a couple of trap addresses to capture test output.
machine.addTrapAddress(0xffd2) // print character
machine.addTrapAddress(0xffe4) // scan keyboard
// Set a couple of test addresses that indicate failure.
machine.addTrapAddress(0x8000) // exit
machine.addTrapAddress(0xa474) // exit
// Ensure that any of those addresses return control.
machine.setValue(0x60, forAddress:0xffd2) // 0x60 is RTS
machine.setValue(0x60, forAddress:0xffe4)
machine.setValue(0x60, forAddress:0x8000)
machine.setValue(0x60, forAddress:0xa474)
machine.setValue(CSTestMachine6502JamOpcode, forAddress:0xe16f) // load
// Commodore's load routine resides at $e16f; this is used to spot the end of a test.
machine.setData(Data([0x4c, 0x6f, 0xe1]), atAddress: 0xe16f)
machine.setValue(0x0801, for: CSTestMachine6502Register.programCounter)
machine.setValue(0xfd, for: CSTestMachine6502Register.stackPointer)
machine.setValue(0x04, for: CSTestMachine6502Register.flags)
// Seed program entry.
machine.setValue(0x0801, for: .programCounter)
machine.setValue(0xfd, for: .stackPointer)
machine.setValue(0x04, for: .flags)
}
}
@ -248,19 +256,16 @@ class WolfgangLorenzTests: XCTestCase, CSTestMachineTrapHandler {
NSException(name: NSExceptionName(rawValue: "Failed Test"), reason: "Couldn't load file \(name)", userInfo: nil).raise()
}
while !machine.isJammed {
while machine.value(for: .lastOperationAddress) != 0xe16f && !machine.isJammed {
machine.runForNumber(ofCycles: 1000)
}
let jammedPC = machine.value(for: CSTestMachine6502Register.lastOperationAddress)
if jammedPC != 0xe16f {
let hexAddress = String(format:"%04x", jammedPC)
if machine.isJammed {
let hexAddress = String(format:"%04x", machine.value(for: .lastOperationAddress))
NSException(name: NSExceptionName(rawValue: "Failed Test"), reason: "Processor jammed unexpectedly at \(hexAddress)", userInfo: nil).raise()
}
}
// MARK: MachineJamHandler
func petsciiToString(_ string: String) -> String {
let petsciiToCharCommon: [String] = [
"?", "?", "?", "[RUN/STOP]", "?", "[WHT]", "?", "?", "[SHIFT DISABLE]", "[SHIFT ENABLE]", "?", "?", "?", "\r", "[TEXT MODE]", "?",