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finish CPU tests

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Candygoblen123 2024-05-26 13:18:05 -04:00
parent 8c0de8c7a7
commit 88d6a22bad
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Tests/CPU.swift
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@ -214,6 +214,133 @@ class CPUTests: XCTestCase {
XCTAssertEqual(cpu.register_a, 0b0100_1100)
}
func test_ror() {
let cpu = CPU()
cpu.load([0x66, 0x10, 0x00])
cpu.reset()
cpu.memWrite(0x10, data: 0b1001_1001)
cpu.runExpect(self)
XCTAssertEqual(cpu.memRead(0x10), 0b0100_1100)
}
func test_inc() {
let cpu = CPU()
cpu.memWrite(0x10, data: 0x10)
cpu.load([0xe6, 0x10, 0x00])
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.memRead(0x10), 0x11)
}
func test_inc_overflow() {
let cpu = CPU()
cpu.load([0xe6, 0x10, 0xe6, 0x10, 0x00])
cpu.memWrite(0x10, data: 0xff)
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.memRead(0x10), 0x01)
}
func test_dey() {
let cpu = CPU()
cpu.load([0x88, 0x00])
cpu.reset()
cpu.register_y = 0x10
cpu.runExpect(self)
XCTAssertEqual(cpu.register_y, 0x0f)
}
func test_dey_underflow() {
let cpu = CPU()
cpu.load([0x88, 0x88, 0x00])
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.register_y, 0xfe)
}
func test_dex() {
let cpu = CPU()
cpu.load([0xca, 0x00])
cpu.reset()
cpu.register_x = 0x10
cpu.runExpect(self)
XCTAssertEqual(cpu.register_x, 0x0f)
}
func test_dex_underflow() {
let cpu = CPU()
cpu.load([0xca, 0xca, 0x00])
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.register_x, 0xfe)
}
func test_dec() {
let cpu = CPU()
cpu.load([0xc6, 0x10, 0x00])
cpu.memWrite(0x10, data: 0x10)
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.memRead(0x10), 0x0f)
}
func test_dec_underflow() {
let cpu = CPU()
cpu.load([0xc6, 0x10, 0xc6, 0x10, 0x00])
cpu.memWrite(0x10, data: 0x00)
cpu.reset()
cpu.runExpect(self)
XCTAssertEqual(cpu.memRead(0x10), 0xfe)
}
func test_pla() {
let cpu = CPU()
cpu.load([0x68, 0x00])
cpu.reset()
cpu.stackPush(0x10)
cpu.runExpect(self)
XCTAssertEqual(cpu.register_a, 0x10)
}
func test_plp() {
let cpu = CPU()
cpu.load([0x28, 0x00])
cpu.reset()
cpu.stackPush(CPUFlags([.interruptDisable, .carry, .decimalMode, .break1, .break2]).rawValue)
cpu.runExpect(self)
XCTAssertEqual(cpu.status, CPUFlags([.interruptDisable, .carry, .decimalMode]))
}
func test_php() {
let cpu = CPU()
cpu.load([0x08, 0x00])
cpu.reset()
cpu.status = CPUFlags(arrayLiteral: [.interruptDisable, .carry, .decimalMode])
cpu.runExpect(self)
XCTAssertEqual(cpu.stackPop(), CPUFlags([.interruptDisable, .carry, .decimalMode, .break1, .break2]).rawValue)
}
func test_bit_zero() {
let cpu = CPU()
cpu.load([0x24, 0x10, 0x00])
cpu.reset()
cpu.register_a = 0b0001
cpu.memWrite(0x10, data: 0b1000)
cpu.runExpect(self)
XCTAssert(cpu.status.contains(.zero))
}
func test_bit_nonzero() {
let cpu = CPU()
cpu.load([0x24, 0x10, 0x00])
cpu.reset()
cpu.register_a = 0b1000
cpu.memWrite(0x10, data: 0b1001)
cpu.runExpect(self)
XCTAssert(!cpu.status.contains(.zero))
}
func test_5_ops_working_together() {
let cpu = CPU()
cpu.load([0xa9, 0xc0, 0xaa, 0xe8, 0x00])