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[cpu] Bugfixes

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Add to register should be a wrapped add
BCD should be hundreds first
This commit is contained in:
Atreya Bain
2024-03-05 20:11:17 +05:30
parent 8702fe7363
commit 62f33d5054
1 changed files with 2 additions and 2 deletions
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4
src/device/device.rs
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@@ -99,7 +99,7 @@ impl Device {
self.registers.v[reg_location] = value;
}
Instruction::AddValueToRegister(reg_location, value) => {
self.registers.v[reg_location] += value;
self.registers.v[reg_location] = self.registers.v[reg_location].wrapping_add( value);
}
Instruction::SetIndex(value) => {
self.registers.i = value;
@@ -252,7 +252,7 @@ impl Device {
binary_value_to_decode_temp /= 10;
// If this fails, something has gone truly wrong
assert_eq!(0, binary_value_to_decode_temp);
let val = [unit_digit, tens_digit, hundreds_digit];
let val = [hundreds_digit, tens_digit, unit_digit];
let index = self.registers.i as usize;
self.memory[index..(index + 3)].copy_from_slice(&val);
}