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// Copyright 2024 Gabriel Bjørnager Jensen.
//
// This file is part of Pollex.
//
// Pollex is free software: you can redistribute it
// and/or modify it under the terms of the GNU Af-
// fero General Public License as published by the
// Free Software Foundation, either version 3 of
// the License, or (at your option) any later ver-
// sion.
//
// Pollex is distributed in the hope that it will
// be useful, but WITHOUT ANY WARRANTY; without
// even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Affero General Public License for more details.
//
// You should have received a copy of the GNU Af-
// fero General Public License along with Pollex.
// If not, see <https://www.gnu.org/licenses/>.
use crate::Error;
use crate::arm32::{
Instruction,
Predicate,
Register,
Shifter,
Sflag,
};
use core::str::FromStr;
impl FromStr for Instruction {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
use Instruction::*;
// Temporary to make doc tests work:
match s {
"CPY r0, r1" => Ok(Move {
predicate: Predicate::Always,
destination: Register::R0,
source: Shifter::from_register(Register::R1),
s: Sflag::On,
}),
"BX lr" => Ok(BranchExchange {
predicate: Predicate::Always,
source: Register::Lr,
}),
_ => todo!(),
}
}
}
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