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Some unit testing for decimal mode

This commit is contained in:
Sam M W 2021-01-26 20:58:09 +00:00
parent 85dd92615d
commit 153f8e4bd7
1 changed files with 28 additions and 0 deletions
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28
src/cpu.rs
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@ -772,6 +772,34 @@ mod tests {
use super::*;
use num::range_inclusive;
#[test]
fn decimal_mode_test() {
let mut cpu = CPU::new();
cpu.registers.status.or(Status::PS_DECIMAL_MODE);
cpu.add_with_carry(0x09);
assert_eq!(cpu.registers.accumulator, 0x09);
assert_eq!(cpu.registers.status.contains(Status::PS_CARRY), false);
assert_eq!(cpu.registers.status.contains(Status::PS_ZERO), false);
assert_eq!(cpu.registers.status.contains(Status::PS_NEGATIVE), false);
assert_eq!(cpu.registers.status.contains(Status::PS_OVERFLOW), false);
cpu.add_with_carry(0x43);
assert_eq!(cpu.registers.accumulator, 0x52);
assert_eq!(cpu.registers.status.contains(Status::PS_CARRY), false);
assert_eq!(cpu.registers.status.contains(Status::PS_ZERO), false);
assert_eq!(cpu.registers.status.contains(Status::PS_NEGATIVE), false);
assert_eq!(cpu.registers.status.contains(Status::PS_OVERFLOW), false);
cpu.add_with_carry(0x48);
assert_eq!(cpu.registers.accumulator, 0x00);
assert_eq!(cpu.registers.status.contains(Status::PS_CARRY), true);
assert_eq!(cpu.registers.status.contains(Status::PS_ZERO), true);
assert_eq!(cpu.registers.status.contains(Status::PS_NEGATIVE), false);
assert_eq!(cpu.registers.status.contains(Status::PS_OVERFLOW), true);
}
#[test]
fn add_with_carry_test() {
let mut cpu = CPU::new();