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Introduces a pre-STP/WAI limit for the MSC test.

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This way I retain testing of NOP, BRK, COP and WDM.
This commit is contained in:
Thomas Harte 2020-11-03 20:59:07 -05:00
parent d50b059a17
commit e3147b6b45
1 changed files with 15 additions and 8 deletions
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23
OSBindings/Mac/Clock SignalTests/65816kromTests.swift
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@ -18,9 +18,13 @@ import XCTest
// https://emudev.de/q00-snes/65816-the-cpu/ for the traces.
class Krom65816Tests: XCTestCase {
// MARK: - Test Machine
// MARK: - Test Runner
func runTest(_ name: String) {
runTest(name, pcLimit: nil)
}
func runTest(_ name: String, pcLimit: UInt32?) {
var testData: Data?
if let filename = Bundle(for: type(of: self)).path(forResource: name, ofType: "sfc") {
testData = try? Data(contentsOf: URL(fileURLWithPath: filename))
@ -69,6 +73,12 @@ class Krom65816Tests: XCTestCase {
}
machine.runForNumber(ofInstructions: 1)
let newPC = Int(machine.value(for: .lastOperationAddress))
// Stop right now if a PC limit has been specified and this is it.
if let pcLimit = pcLimit, pcLimit == newPC {
break
}
func machineState() -> String {
// Formulate my 65816 state in the same form as the test machine
@ -117,7 +127,7 @@ class Krom65816Tests: XCTestCase {
break
}
lineNumber += 1
previousPC = Int(machine.value(for: .lastOperationAddress))
previousPC = newPC
// Check whether a 'RDNMI' toggle needs to happen by peeking at the next instruction;
// if it's BIT $4210 then toggle the top bit at address $4210.
@ -159,10 +169,7 @@ class Krom65816Tests: XCTestCase {
func testSTR() { runTest("CPUSTR") }
func testTRN() { runTest("CPUTRN") }
// MSC isn't usable because it tests WAI and STP, having set itself up to receive
// some SNES-specific interrupts. Luckily those are the two final things it tests,
// and life seems to be good until there.
//
// TODO: reintroduce with a special stop-before inserted?
// func testMSC() { runTest("CPUMSC") }
// Ensure the MSC tests stop before they attempt to test STP and WAI;
// the test relies on SNES means for scheduling a future interrupt.
func testMSC() { runTest("CPUMSC", pcLimit: 0x8523) }
}