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some failing tests

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Sam M W 2022-10-20 09:04:44 +01:00
parent f3d3bf470f
commit 1972a42adc
1 changed files with 27 additions and 0 deletions
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27
src/cpu.rs
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@ -1047,6 +1047,33 @@ mod tests {
assert_eq!(cpu.memory.get_byte(addr) as i8, -1); assert_eq!(cpu.memory.get_byte(addr) as i8, -1);
assert!(!cpu.registers.status.contains(Status::PS_ZERO)); assert!(!cpu.registers.status.contains(Status::PS_ZERO));
assert!(cpu.registers.status.contains(Status::PS_NEGATIVE)); assert!(cpu.registers.status.contains(Status::PS_NEGATIVE));
cpu.memory.set_byte(addr, 0);
cpu.decrement_memory(addr);
assert_eq!(cpu.memory.get_byte(addr), 0xff);
assert!(!cpu.registers.status.contains(Status::PS_ZERO));
assert!(cpu.registers.status.contains(Status::PS_NEGATIVE));
}
#[test]
fn decrement_x_test() {
let mut cpu = CPU::new();
cpu.registers.index_x = -128;
cpu.execute_instruction((Instruction::DEX, OpInput::UseImplied));
assert_eq!(cpu.registers.index_x, 127);
assert!(!cpu.registers.status.contains(Status::PS_ZERO));
assert!(!cpu.registers.status.contains(Status::PS_NEGATIVE));
}
#[test]
fn decrement_y_test() {
let mut cpu = CPU::new();
cpu.registers.index_y = -128;
cpu.execute_instruction((Instruction::DEY, OpInput::UseImplied));
assert_eq!(cpu.registers.index_y, 127);
assert!(!cpu.registers.status.contains(Status::PS_ZERO));
assert!(!cpu.registers.status.contains(Status::PS_NEGATIVE));
} }
#[test] #[test]