| 1 | mod asm; |
| 2 | mod isa; |
| 3 | mod sfr; |
| 4 | mod sim; |
| 5 | mod ui; |
| 6 | |
| 7 | use std::path::PathBuf; |
| 8 | use std::process::ExitCode; |
| 9 | |
| 10 | use clap::Parser; |
| 11 | |
| 12 | /// Intel 8051 assembler, simulator and TUI debugger. |
| 13 | #[derive(Parser, Debug)] |
| 14 | #[command(version, about)] |
| 15 | struct Args { |
| 16 | /// Assembly source (.asm) or Intel HEX (.hex) file to open. |
| 17 | file: Option<PathBuf>, |
| 18 | |
| 19 | /// Assemble FILE without starting the TUI, writing the Intel HEX file. |
| 20 | #[arg(short, long, requires = "file")] |
| 21 | assemble: bool, |
| 22 | |
| 23 | /// Output HEX path (default: FILE with a .hex extension). |
| 24 | #[arg(short, long, requires = "assemble")] |
| 25 | output: Option<PathBuf>, |
| 26 | |
| 27 | /// Also write a listing to this path (default: FILE with a .lst extension). |
| 28 | #[arg(long, requires = "assemble")] |
| 29 | lst: Option<PathBuf>, |
| 30 | |
| 31 | /// Oscillator frequency in MHz, used to show elapsed time. |
| 32 | #[arg(long, default_value_t = 11.0592)] |
| 33 | clock: f64, |
| 34 | } |
| 35 | |
| 36 | fn assemble_file(args: &Args) -> ExitCode { |
| 37 | let path = args.file.as_ref().unwrap(); |
| 38 | let source = match std::fs::read_to_string(path) { |
| 39 | Ok(s) => s, |
| 40 | Err(e) => { |
| 41 | eprintln!("error: cannot read {}: {e}", path.display()); |
| 42 | return ExitCode::FAILURE; |
| 43 | } |
| 44 | }; |
| 45 | let out = asm::assemble(&source); |
| 46 | let lst = args |
| 47 | .lst |
| 48 | .clone() |
| 49 | .unwrap_or_else(|| path.with_extension("lst")); |
| 50 | if let Err(e) = std::fs::write(&lst, out.listing(&source)) { |
| 51 | eprintln!("error: cannot write {}: {e}", lst.display()); |
| 52 | } |
| 53 | if !out.ok() { |
| 54 | for d in &out.diagnostics { |
| 55 | eprintln!( |
| 56 | "{}:{}:{}: error: {}", |
| 57 | path.display(), |
| 58 | d.line + 1, |
| 59 | d.col + 1, |
| 60 | d.msg |
| 61 | ); |
| 62 | } |
| 63 | eprintln!("{} error(s); see {}", out.diagnostics.len(), lst.display()); |
| 64 | return ExitCode::FAILURE; |
| 65 | } |
| 66 | let hex = args |
| 67 | .output |
| 68 | .clone() |
| 69 | .unwrap_or_else(|| path.with_extension("hex")); |
| 70 | if let Err(e) = std::fs::write(&hex, out.intel_hex()) { |
| 71 | eprintln!("error: cannot write {}: {e}", hex.display()); |
| 72 | return ExitCode::FAILURE; |
| 73 | } |
| 74 | println!( |
| 75 | "{} bytes -> {}, listing -> {}", |
| 76 | out.code_size(), |
| 77 | hex.display(), |
| 78 | lst.display() |
| 79 | ); |
| 80 | ExitCode::SUCCESS |
| 81 | } |
| 82 | |
| 83 | fn main() -> ExitCode { |
| 84 | let args = Args::parse(); |
| 85 | if args.assemble { |
| 86 | return assemble_file(&args); |
| 87 | } |
| 88 | match ui::run(args.file, args.clock) { |
| 89 | Ok(()) => ExitCode::SUCCESS, |
| 90 | Err(e) => { |
| 91 | eprintln!("error: {e}"); |
| 92 | ExitCode::FAILURE |
| 93 | } |
| 94 | } |
| 95 | } |