mirror of
https://github.com/mre/mos6502.git
synced 2025-02-19 16:32:10 +00:00
fix variable
This commit is contained in:
Noppadet Vivatchotikul
parent
a9697e6b79
commit
c440637adb
580
src/cpu.rs
580
src/cpu.rs
@ -778,162 +778,162 @@ mod tests {
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fn add_with_carry_test() {
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let mut cpu = CPU::new();
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CPU.add_with_carry(1);
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assert_eq!(CPU.registers.accumulator, 1);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(1);
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assert_eq!(cpu.registers.accumulator, 1);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.add_with_carry(-1);
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assert_eq!(CPU.registers.accumulator, 0);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(-1);
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assert_eq!(cpu.registers.accumulator, 0);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.add_with_carry(1);
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assert_eq!(CPU.registers.accumulator, 2);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(1);
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assert_eq!(cpu.registers.accumulator, 2);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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let mut cpu = CPU::new();
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CPU.add_with_carry(127);
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assert_eq!(CPU.registers.accumulator, 127);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(127);
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assert_eq!(cpu.registers.accumulator, 127);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.add_with_carry(-127);
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assert_eq!(CPU.registers.accumulator, 0);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(-127);
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assert_eq!(cpu.registers.accumulator, 0);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.registers.status.remove(PS_CARRY);
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CPU.add_with_carry(-128);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.registers.status.remove(PS_CARRY);
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cpu.add_with_carry(-128);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.add_with_carry(127);
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assert_eq!(CPU.registers.accumulator, -1);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(127);
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assert_eq!(cpu.registers.accumulator, -1);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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let mut cpu = CPU::new();
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CPU.add_with_carry(127);
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assert_eq!(CPU.registers.accumulator, 127);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.add_with_carry(127);
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assert_eq!(cpu.registers.accumulator, 127);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.add_with_carry(1);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), true);
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cpu.add_with_carry(1);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), true);
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}
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#[test]
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fn and_test() {
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let mut cpu = CPU::new();
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CPU.registers.accumulator = 0;
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CPU.and(-1);
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assert_eq!(CPU.registers.accumulator, 0);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.registers.accumulator = 0;
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cpu.and(-1);
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assert_eq!(cpu.registers.accumulator, 0);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.registers.accumulator = -1;
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CPU.and(0);
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assert_eq!(CPU.registers.accumulator, 0);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.registers.accumulator = -1;
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cpu.and(0);
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assert_eq!(cpu.registers.accumulator, 0);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.registers.accumulator = -1;
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CPU.and(0x0f);
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assert_eq!(CPU.registers.accumulator, 0x0f);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.registers.accumulator = -1;
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cpu.and(0x0f);
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assert_eq!(cpu.registers.accumulator, 0x0f);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.registers.accumulator = -1;
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CPU.and(-128);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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cpu.registers.accumulator = -1;
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cpu.and(-128);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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}
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#[test]
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fn subtract_with_carry_test() {
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let mut cpu = CPU::new();
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CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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CPU.registers.accumulator = 0;
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cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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cpu.registers.accumulator = 0;
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CPU.subtract_with_carry(1);
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assert_eq!(CPU.registers.accumulator, -1);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.subtract_with_carry(1);
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assert_eq!(cpu.registers.accumulator, -1);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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CPU.registers.accumulator = -128;
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CPU.subtract_with_carry(1);
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assert_eq!(CPU.registers.accumulator, 127);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), true);
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cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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cpu.registers.accumulator = -128;
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cpu.subtract_with_carry(1);
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assert_eq!(cpu.registers.accumulator, 127);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), true);
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CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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CPU.registers.accumulator = 127;
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CPU.subtract_with_carry(-1);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), true);
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cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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cpu.registers.accumulator = 127;
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cpu.subtract_with_carry(-1);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), true);
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CPU.execute_instruction((Instruction::CLC, OpInput::UseImplied));
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CPU.registers.accumulator = -64;
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CPU.subtract_with_carry(64);
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assert_eq!(CPU.registers.accumulator, 127);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), true);
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cpu.execute_instruction((Instruction::CLC, OpInput::UseImplied));
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cpu.registers.accumulator = -64;
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cpu.subtract_with_carry(64);
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assert_eq!(cpu.registers.accumulator, 127);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), true);
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CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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CPU.registers.accumulator = 0;
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CPU.subtract_with_carry(-128);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), true);
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cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
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cpu.registers.accumulator = 0;
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cpu.subtract_with_carry(-128);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), true);
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CPU.execute_instruction((Instruction::CLC, OpInput::UseImplied));
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CPU.registers.accumulator = 0;
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CPU.subtract_with_carry(127);
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assert_eq!(CPU.registers.accumulator, -128);
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assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
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cpu.execute_instruction((Instruction::CLC, OpInput::UseImplied));
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cpu.registers.accumulator = 0;
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cpu.subtract_with_carry(127);
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assert_eq!(cpu.registers.accumulator, -128);
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assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
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}
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#[test]
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@ -941,29 +941,29 @@ mod tests {
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let mut cpu = CPU::new();
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let addr = Address(0xA1B2);
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CPU.memory.set_byte(addr, 5);
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cpu.memory.set_byte(addr, 5);
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CPU.decrement_memory(addr);
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assert_eq!(CPU.memory.get_byte(addr), 4);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.decrement_memory(addr);
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assert_eq!(cpu.memory.get_byte(addr), 4);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.decrement_memory(addr);
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assert_eq!(CPU.memory.get_byte(addr), 3);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.decrement_memory(addr);
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assert_eq!(cpu.memory.get_byte(addr), 3);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.decrement_memory(addr);
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CPU.decrement_memory(addr);
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CPU.decrement_memory(addr);
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assert_eq!(CPU.memory.get_byte(addr), 0);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
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cpu.decrement_memory(addr);
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cpu.decrement_memory(addr);
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cpu.decrement_memory(addr);
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assert_eq!(cpu.memory.get_byte(addr), 0);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
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CPU.decrement_memory(addr);
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assert_eq!(CPU.memory.get_byte(addr) as i8, -1);
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assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
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assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
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cpu.decrement_memory(addr);
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assert_eq!(cpu.memory.get_byte(addr) as i8, -1);
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assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
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assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
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}
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#[test]
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@ -971,82 +971,82 @@ mod tests {
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// Testing UseImplied version (which targets the accumulator) only, for now
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let mut cpu = CPU::new();
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CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(0)));
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CPU.execute_instruction((Instruction::LSR, OpInput::UseImplied));
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assert_eq!(CPU.registers.accumulator, 0);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(0)));
|
||||
cpu.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(cpu.registers.accumulator, 0);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(1)));
|
||||
CPU.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(CPU.registers.accumulator, 0);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(1)));
|
||||
cpu.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(cpu.registers.accumulator, 0);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(255)));
|
||||
CPU.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(CPU.registers.accumulator, 0x7F);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(255)));
|
||||
cpu.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(cpu.registers.accumulator, 0x7F);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(254)));
|
||||
CPU.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(CPU.registers.accumulator, 0x7F);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(254)));
|
||||
cpu.execute_instruction((Instruction::LSR, OpInput::UseImplied));
|
||||
assert_eq!(cpu.registers.accumulator, 0x7F);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn dec_x_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.dec_x();
|
||||
assert_eq!(CPU.registers.index_x, -1);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.dec_x();
|
||||
assert_eq!(cpu.registers.index_x, -1);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.dec_x();
|
||||
assert_eq!(CPU.registers.index_x, -2);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.dec_x();
|
||||
assert_eq!(cpu.registers.index_x, -2);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.load_x_register(5);
|
||||
CPU.dec_x();
|
||||
assert_eq!(CPU.registers.index_x, 4);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.load_x_register(5);
|
||||
cpu.dec_x();
|
||||
assert_eq!(cpu.registers.index_x, 4);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.dec_x();
|
||||
CPU.dec_x();
|
||||
CPU.dec_x();
|
||||
CPU.dec_x();
|
||||
cpu.dec_x();
|
||||
cpu.dec_x();
|
||||
cpu.dec_x();
|
||||
cpu.dec_x();
|
||||
|
||||
assert_eq!(CPU.registers.index_x, 0);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
assert_eq!(cpu.registers.index_x, 0);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
|
||||
CPU.dec_x();
|
||||
assert_eq!(CPU.registers.index_x, -1);
|
||||
assert_eq!(CPU.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(CPU.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(CPU.registers.status.contains(PS_OVERFLOW), false);
|
||||
cpu.dec_x();
|
||||
assert_eq!(cpu.registers.index_x, -1);
|
||||
assert_eq!(cpu.registers.status.contains(PS_CARRY), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_ZERO), false);
|
||||
assert_eq!(cpu.registers.status.contains(PS_NEGATIVE), true);
|
||||
assert_eq!(cpu.registers.status.contains(PS_OVERFLOW), false);
|
||||
}
|
||||
|
||||
#[test]
|
||||
@ -1054,68 +1054,68 @@ mod tests {
|
||||
let mut cpu = CPU::new();
|
||||
let addr = Address(0xA1B1);
|
||||
|
||||
CPU.jump(addr);
|
||||
assert_eq!(CPU.registers.program_counter, addr);
|
||||
cpu.jump(addr);
|
||||
assert_eq!(cpu.registers.program_counter, addr);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_carry_clear_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
|
||||
CPU.branch_if_carry_clear(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
|
||||
cpu.branch_if_carry_clear(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.execute_instruction((Instruction::CLC, OpInput::UseImplied));
|
||||
CPU.branch_if_carry_clear(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.execute_instruction((Instruction::CLC, OpInput::UseImplied));
|
||||
cpu.branch_if_carry_clear(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_carry_set_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.execute_instruction((Instruction::CLC, OpInput::UseImplied));
|
||||
CPU.branch_if_carry_set(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.execute_instruction((Instruction::CLC, OpInput::UseImplied));
|
||||
cpu.branch_if_carry_set(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.execute_instruction((Instruction::SEC, OpInput::UseImplied));
|
||||
CPU.branch_if_carry_set(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.execute_instruction((Instruction::SEC, OpInput::UseImplied));
|
||||
cpu.branch_if_carry_set(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_equal_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.branch_if_equal(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.branch_if_equal(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.registers.status.or(PS_ZERO);
|
||||
CPU.branch_if_equal(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.registers.status.or(PS_ZERO);
|
||||
cpu.branch_if_equal(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_minus_test() {
|
||||
{
|
||||
let mut cpu = CPU::new();
|
||||
let registers_before = CPU.registers;
|
||||
let registers_before = cpu.registers;
|
||||
|
||||
CPU.branch_if_minus(Address(0xABCD));
|
||||
assert_eq!(CPU.registers, registers_before);
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.branch_if_minus(Address(0xABCD));
|
||||
assert_eq!(cpu.registers, registers_before);
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
}
|
||||
|
||||
{
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.registers.status.or(PS_NEGATIVE);
|
||||
let registers_before = CPU.registers;
|
||||
cpu.registers.status.or(PS_NEGATIVE);
|
||||
let registers_before = cpu.registers;
|
||||
|
||||
CPU.branch_if_minus(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.status, registers_before.status);
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.branch_if_minus(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.status, registers_before.status);
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
}
|
||||
|
||||
@ -1123,38 +1123,38 @@ mod tests {
|
||||
fn branch_if_positive_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.registers.status.insert(PS_NEGATIVE);
|
||||
CPU.branch_if_positive(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.registers.status.insert(PS_NEGATIVE);
|
||||
cpu.branch_if_positive(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.registers.status.remove(PS_NEGATIVE);
|
||||
CPU.branch_if_positive(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.registers.status.remove(PS_NEGATIVE);
|
||||
cpu.branch_if_positive(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_overflow_clear_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.registers.status.insert(PS_OVERFLOW);
|
||||
CPU.branch_if_overflow_clear(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.registers.status.insert(PS_OVERFLOW);
|
||||
cpu.branch_if_overflow_clear(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.registers.status.remove(PS_OVERFLOW);
|
||||
CPU.branch_if_overflow_clear(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.registers.status.remove(PS_OVERFLOW);
|
||||
cpu.branch_if_overflow_clear(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn branch_if_overflow_set_test() {
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.branch_if_overflow_set(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0));
|
||||
cpu.branch_if_overflow_set(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0));
|
||||
|
||||
CPU.registers.status.insert(PS_OVERFLOW);
|
||||
CPU.branch_if_overflow_set(Address(0xABCD));
|
||||
assert_eq!(CPU.registers.program_counter, Address(0xABCD));
|
||||
cpu.registers.status.insert(PS_OVERFLOW);
|
||||
cpu.branch_if_overflow_set(Address(0xABCD));
|
||||
assert_eq!(cpu.registers.program_counter, Address(0xABCD));
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
@ -1164,59 +1164,59 @@ mod tests {
|
||||
{
|
||||
let mut cpu = CPU::new();
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
|
||||
compare(&mut cpu, 127);
|
||||
assert!(CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
|
||||
compare(&mut cpu, 1);
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(1)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(1)));
|
||||
|
||||
compare(&mut cpu, 2);
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(cpu.registers.status.contains(PS_NEGATIVE));
|
||||
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(20)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(20)));
|
||||
|
||||
compare(&mut cpu, -50i8 as u8);
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(1)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(1)));
|
||||
|
||||
compare(&mut cpu, -1i8 as u8);
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
|
||||
|
||||
CPU.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
cpu.execute_instruction((load_instruction, OpInput::UseImmediate(127)));
|
||||
|
||||
compare(&mut cpu, -128i8 as u8);
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!CPU.registers.status.contains(PS_CARRY));
|
||||
assert!(CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_CARRY));
|
||||
assert!(cpu.registers.status.contains(PS_NEGATIVE));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn compare_with_a_register_test() {
|
||||
compare_test_helper(
|
||||
&mut |CPU: &mut cpu, val: u8| {
|
||||
CPU.compare_with_a_register(val);
|
||||
cpu.compare_with_a_register(val);
|
||||
},
|
||||
Instruction::LDA,
|
||||
);
|
||||
@ -1226,7 +1226,7 @@ mod tests {
|
||||
fn compare_with_x_register_test() {
|
||||
compare_test_helper(
|
||||
&mut |CPU: &mut cpu, val: u8| {
|
||||
CPU.compare_with_x_register(val);
|
||||
cpu.compare_with_x_register(val);
|
||||
},
|
||||
Instruction::LDX,
|
||||
);
|
||||
@ -1236,7 +1236,7 @@ mod tests {
|
||||
fn compare_with_y_register_test() {
|
||||
compare_test_helper(
|
||||
&mut |CPU: &mut cpu, val: u8| {
|
||||
CPU.compare_with_y_register(val);
|
||||
cpu.compare_with_y_register(val);
|
||||
},
|
||||
Instruction::LDY,
|
||||
);
|
||||
@ -1248,23 +1248,23 @@ mod tests {
|
||||
|
||||
for a_before in range_inclusive(0u8, 255u8) {
|
||||
for val in range_inclusive(0u8, 255u8) {
|
||||
CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(a_before)));
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(a_before)));
|
||||
|
||||
CPU.exclusive_or(val);
|
||||
cpu.exclusive_or(val);
|
||||
|
||||
let a_after = a_before ^ val;
|
||||
assert_eq!(CPU.registers.accumulator, a_after as i8);
|
||||
assert_eq!(cpu.registers.accumulator, a_after as i8);
|
||||
|
||||
if a_after == 0 {
|
||||
assert!(CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(cpu.registers.status.contains(PS_ZERO));
|
||||
} else {
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
}
|
||||
|
||||
if (a_after as i8) < 0 {
|
||||
assert!(CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(cpu.registers.status.contains(PS_NEGATIVE));
|
||||
} else {
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1276,23 +1276,23 @@ mod tests {
|
||||
|
||||
for a_before in range_inclusive(0u8, 255u8) {
|
||||
for val in range_inclusive(0u8, 255u8) {
|
||||
CPU.execute_instruction((Instruction::LDA, OpInput::UseImmediate(a_before)));
|
||||
cpu.execute_instruction((Instruction::LDA, OpInput::UseImmediate(a_before)));
|
||||
|
||||
CPU.inclusive_or(val);
|
||||
cpu.inclusive_or(val);
|
||||
|
||||
let a_after = a_before | val;
|
||||
assert_eq!(CPU.registers.accumulator, a_after as i8);
|
||||
assert_eq!(cpu.registers.accumulator, a_after as i8);
|
||||
|
||||
if a_after == 0 {
|
||||
assert!(CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(cpu.registers.status.contains(PS_ZERO));
|
||||
} else {
|
||||
assert!(!CPU.registers.status.contains(PS_ZERO));
|
||||
assert!(!cpu.registers.status.contains(PS_ZERO));
|
||||
}
|
||||
|
||||
if (a_after as i8) < 0 {
|
||||
assert!(CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(cpu.registers.status.contains(PS_NEGATIVE));
|
||||
} else {
|
||||
assert!(!CPU.registers.status.contains(PS_NEGATIVE));
|
||||
assert!(!cpu.registers.status.contains(PS_NEGATIVE));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user