frasm's Introduction

frasm

MIPS assembler written in Rust

About

frasm is an assembler written in Rust speicifally for the MIPs architecture. This is my first time writing anything bigger than a Hello, World! in Rust. As of right now (Oct 2021) it is a relatively dumb assembler that is still being developed.

I am building this project for the purpose of learning rust, I have done little toy examples and hello worlds but I have yet to sit down and build out a project with it yet.

to see whats being worked on visit the projects page.

Building and Running

frasm is built in rust and uses cargo for building and package management.

To build it you just run: cargo build

To run: ./target/debug/frasm /path/to/file.asm

To build and run: cargo run /path/to/file.asm.

As of right now it takes one command line argument which is the assembly file.

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frasm's Issues

No floating point supported

Main code switches between &str and String

Not a functionality issue but, in the main.rs there is a bunch of switching between types &str and String, this is making the barrow checker fussy and the code hard to read.

doesn't properly compile most I type instructions

Problemed areas:

doesn't add labels from 0x00400000
some of the I type op code values appear to be off.

frasm doesn't handle no arguments passed

Right now frasm will panic and give an error about index out of bounds (because command-line arguments are a Vec). We need to check to make sure something is being passed. On top of that, we can't just make sure we're passing something, but also that what's being passed is a file that exists AND we have access to it.

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