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Added CPI and CPD tests: at last two that pass without requiring implementation changes!

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This commit is contained in:
Thomas Harte 2017-07-22 12:38:18 -04:00
parent 5928a24803
commit 6437c43147
1 changed files with 28 additions and 8 deletions
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36
OSBindings/Mac/Clock SignalTests/Z80MemptrTests.swift
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@ -187,15 +187,35 @@ class Z80MemptrTests: XCTestCase {
when BC <> 1: MEMPTR = PC + 1, where PC = instruction address
*/
/* TODO:
CPI
MEMPTR = MEMPTR + 1
*/
func testCPI() {
// CPI: MEMPTR = MEMPTR + 1
let program: [UInt8] = [
0xed, 0xa1
]
machine.setData(Data(bytes: program), atAddress: 0x0000)
machine.setValue(0, for: .memPtr)
/* TODO:
CPD
MEMPTR = MEMPTR - 1
*/
for c in 1 ..< 65536 {
machine.setValue(0x0000, for: .programCounter)
machine.runForNumber(ofCycles: 16)
XCTAssertEqual(UInt16(c), machine.value(for: .memPtr))
}
}
func testCPD() {
// CPD: MEMPTR = MEMPTR - 1
let program: [UInt8] = [
0xed, 0xa9
]
machine.setData(Data(bytes: program), atAddress: 0x0000)
machine.setValue(0, for: .memPtr)
for c in 1 ..< 65536 {
machine.setValue(0x0000, for: .programCounter)
machine.runForNumber(ofCycles: 16)
XCTAssertEqual(UInt16(65536 - c), machine.value(for: .memPtr))
}
}
/* TODO:
CPIR