46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
pub mod data;
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pub mod ins;
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pub mod label;
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pub mod linker;
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pub mod object;
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use {
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object::Object,
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rhai::{Engine, Module},
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std::{cell::RefCell, rc::Rc},
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};
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type SharedObject = Rc<RefCell<Object>>;
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pub fn assembler(
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linkout: &mut impl std::io::Write,
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loader: impl FnOnce(&mut Engine) -> Result<(), Box<rhai::EvalAltResult>>,
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) -> Result<(), Box<dyn std::error::Error>> {
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let mut engine = Engine::new();
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let mut module = Module::new();
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let obj = Rc::new(RefCell::new(Object::default()));
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ins::setup(&mut module, Rc::clone(&obj));
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label::setup(&mut engine, &mut module, Rc::clone(&obj));
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// Registers
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for n in 0_u8..=255 {
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module.set_var(format!("r{n}"), n);
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}
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module.set_native_fn("reg", |n: i64| {
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Ok(u8::try_from(n).map_err(|_| {
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rhai::EvalAltResult::ErrorRuntime("Invalid register value".into(), rhai::Position::NONE)
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})?)
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});
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module.set_native_fn("as_i64", |n: u8| Ok(n as i64));
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let datamod = Rc::new(data::module(&mut engine, SharedObject::clone(&obj)));
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engine.register_global_module(Rc::new(module));
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engine.register_static_module("data", datamod);
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engine.register_type_with_name::<object::SymbolRef>("SymbolRef");
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loader(&mut engine)?;
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linker::link(obj, linkout)?;
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Ok(())
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}
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