djiq / riasm

RIASM is a basic, asm-like language interpreter that allows you to write your own instructions and define your own registers

RIASM

RIASM stands for Rust Interpreter for ASM. It is a basic, asm-like language interpreter that allows you to write your own instructions and define your own registers, allowing you to embed this in for example some kind of game, allowing users to interface with a basic interpreter. The big benefit of using RIASM is that it is extremely bare bones, it posses no native instructions of it's own, and has no default registers, the end user must define every single one of these, allowing you to leverage it to define each instruction to mean whatever you like.

TODO

• Make a String to AST scanner
• Unshit *mut ASTDefinition to not use a raw pointer, but something like Rc or Arc
• Add labels
• Figure out how to make defining instructions not complete shit

How to build

cargo build --release

How To Use

Simply import

riasm::asm_definition::*;

and then use provided builder functions to construct and execute the asm interpreter you just built. Example:

use riasm::asm_definition::*;

fn main() {
    let text: String = "
MOV [R1] 0
MOV [R2] 1
loop:
ADD [R1] [R2]
ADD [R2] [R1]
PRINT [R1]
PRINT [R2]
JMP loop
"
    .into();

    ASMDefinition::new()
        .insert_register("R1")
        .insert_register("R2")
        .insert_register("R3")
        .insert_instruction("MOV", |state, arg| {
            arg[0].try_modify_register(arg[1].resolve())
        })
        .insert_instruction("ADD", |state, arg| {
            arg[0].try_modify_register(arg[0].resolve() + arg[1].resolve())
        })
        .insert_instruction("PRINT", |state, arg| println!("{}", arg[0].resolve()))
        .insert_instruction("JMP", |state, arg| state.jump_to_label(arg[0].resolve()))
        .interpret(text);
}

this will print the fibonnaci sequence till the program crashes due to rusts safety preventing the integer overflow