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Add BufferField support for Increment/Decrement. #351

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Add BufferField support for Increment/Decrement. #351

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31 changes: 22 additions & 9 deletions src/aml/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -497,24 +497,37 @@ where
self.do_unary_maths(&mut context, op)?;
}
Opcode::Increment | Opcode::Decrement => {
let [Argument::Object(operand)] = &op.arguments[..] else { panic!() };
extract_args!(op => [Argument::Object(operand)]);
let operand = operand.clone().unwrap_transparent_reference();
let token = self.object_token.lock();

let Object::Integer(operand) = (unsafe { operand.gain_mut(&token) }) else {
Err(AmlError::ObjectNotOfExpectedType {
expected: ObjectType::Integer,
got: operand.typ(),
})?
let operand = unsafe {operand.gain_mut(&token)};
let value = match operand {
Object::Integer(operand) => {
*operand
}
Object::BufferField{..} => {
operand.to_integer(self.integer_size)?
}
_ => Err(AmlError::ObjectNotOfExpectedType { expected: ObjectType::Integer, got: operand.typ() })?
};

let new_value = match op.op {
Opcode::Increment => operand.wrapping_add(1),
Opcode::Decrement => operand.wrapping_sub(1),
Opcode::Increment => value.wrapping_add(1),
Opcode::Decrement => value.wrapping_sub(1),
_ => unreachable!(),
};

*operand = new_value;
match operand {
Object::Integer(operand) => {
*operand = new_value;
}
Object::BufferField{..} => {
operand.write_buffer_field(&new_value.to_le_bytes(), &token)?;
}
_ => unreachable!()
}

context.contribute_arg(Argument::Object(Object::Integer(new_value).wrap()));
context.retire_op(op);
}
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