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Diffstat (limited to 'src/arm32/instruction/from_str.rs')
-rw-r--r-- | src/arm32/instruction/from_str.rs | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/arm32/instruction/from_str.rs b/src/arm32/instruction/from_str.rs new file mode 100644 index 0000000..cbb0716 --- /dev/null +++ b/src/arm32/instruction/from_str.rs @@ -0,0 +1,56 @@ +// 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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