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Exercice: A basic CLI [Julien D] #17

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Exercice: A basic CLI [Julien D] #17

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4576531
Cargo: Add clap to deps
RedbeanGit Feb 28, 2022
8daed9b
d0-core1: Parse instruction from stdin
RedbeanGit Feb 28, 2022
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233 changes: 233 additions & 0 deletions Cargo.lock
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1 change: 1 addition & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,3 +7,4 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
clap = { version = "3.1.2", features = ["derive"] }
16 changes: 15 additions & 1 deletion src/main.rs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,13 @@
use clap::Parser;

#[derive(Parser, Debug)]
#[clap(author, version, about, long_about = None)]
struct Args {
/// Instruction to parse
#[clap(short, long)]
instruction: String,
}

#[derive(Debug)]
struct Instruction {
opcode: OpCode,
Expand Down Expand Up @@ -60,7 +70,11 @@ fn main() {
// 0001 1000 0100 0010
// 1 8 4 2
// 0b0001100001000010 = 0x1842
let insn: u32 = 0x1842;
let args = Args::parse();
let raw_insn = args.instruction.trim_start_matches("0x");
let insn: u32 = u32::from_str_radix(&raw_insn, 16)
.ok()
.expect("Unable to parse this instruction");
let mut r1: u32 = 20;
let r3: u32 = 12;

Expand Down