Alek Ratzloff
b0ef49bc2a
Most everything works, but there's one small bug with the execution involving jumps - still have to figure that one out. Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
50 lines
1.2 KiB
Rust
50 lines
1.2 KiB
Rust
#![allow(dead_code)]
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mod common;
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mod vm;
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use std::{env, fs, io, process};
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type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;
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fn get_input_string() -> io::Result<String> {
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let args: Vec<String> = env::args().collect();
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if args.len() <= 1 {
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println!(
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"usage: {} file.asm",
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args.get(0).map(String::as_str).unwrap_or("rasp")
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);
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process::exit(1);
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} else {
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fs::read_to_string(&args[1])
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}
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}
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fn main() -> Result<()> {
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use vm::{
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state::State,
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obj::{
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assemble::{Asm, Assemble},
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syn::{lexer, parser},
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}
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};
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let text = get_input_string()?;
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let lexerdef = lexer::lexerdef();
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let lexer = lexerdef.lexer(&text);
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let (res, errors) = parser::parse(&lexer);
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for err in errors.iter() {
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println!("{}", err.pp(&lexer, &parser::token_epp));
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}
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if !errors.is_empty() {
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return Ok(());
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}
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let res = res.unwrap();
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let mut asm = Asm::default();
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let object = res.assemble(&mut asm)?;
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let mut state = State::new();
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state.load_object(object, 64 * 1024 * 1024)?;
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let status = state.exec()?;
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println!("exit status: {}", status);
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Ok(())
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}
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