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These tests appear to be against a real 6502.

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This commit is contained in:
Thomas Harte 2023-09-21 10:22:04 -04:00
parent 4a87aa06a5
commit 4c32fc9b11
1 changed files with 12 additions and 2 deletions
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14
OSBindings/Mac/Clock SignalTests/NeskellTests.swift
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@ -16,14 +16,15 @@ class NeskellTests: XCTestCase {
private func runTest(resource: String, codeAddress: UInt32) -> CSTestMachine6502? { private func runTest(resource: String, codeAddress: UInt32) -> CSTestMachine6502? {
if let filename = Bundle(for: type(of: self)).path(forResource: resource, ofType: "bin") { if let filename = Bundle(for: type(of: self)).path(forResource: resource, ofType: "bin") {
if let functionalTest = try? Data(contentsOf: URL(fileURLWithPath: filename)) { if let functionalTest = try? Data(contentsOf: URL(fileURLWithPath: filename)) {
let machine = CSTestMachine6502(processor: .processorNES6502) let machine = CSTestMachine6502(processor: .processor6502)
machine.setData(functionalTest, atAddress: codeAddress) machine.setData(functionalTest, atAddress: codeAddress)
machine.setValue(UInt16(codeAddress), for: .programCounter) machine.setValue(UInt16(codeAddress), for: .programCounter)
machine.setValue(0xff, for: .stackPointer)
// Install the halt-forever trailer. // Install the halt-forever trailer.
let targetAddress = UInt32(codeAddress + UInt32(functionalTest.count)) let targetAddress = UInt32(codeAddress + UInt32(functionalTest.count))
let infiniteStop = Data([0x38, 0xb0, 0xfe]) // i.e. SEC; BCS -2 let infiniteStop = Data([0x4c, UInt8(targetAddress & 0xff), UInt8((targetAddress >> 8) & 0xff)]) // i.e. JMP to self.
machine.setData(infiniteStop, atAddress: targetAddress) machine.setData(infiniteStop, atAddress: targetAddress)
while true { while true {
@ -61,4 +62,13 @@ class NeskellTests: XCTestCase {
assertStack(machine: result, contents: [0x42, 0x42, 0x41, 0x41, 0x00, 0x01, 0xCE, 0xCF, 0xC0, 0xD0]); assertStack(machine: result, contents: [0x42, 0x42, 0x41, 0x41, 0x00, 0x01, 0xCE, 0xCF, 0xC0, 0xD0]);
} }
} }
func testBCD() {
if let result = runTest(resource: "bcd_add_sub_test", codeAddress: 0x600) {
XCTAssertEqual(result.value(for: .stackPointer), 0xf6)
XCTAssertEqual(result.value(for: .flags), 0xbc) // Diverge from original in taking B as set when magically
// peaking inside.
assertStack(machine: result, contents: [0x87, 0x91, 0x29, 0x27, 0x34, 0x73, 0x41, 0x46, 0x05]);
}
}
} }