Rustacor

This is an assembler and VM written in Rust for the platform used in Eric Wastl (@topaz)'s lovely Synacor Challenge. The challenge describes the architecture of a fictional 16-bit mini-processor, and includes a binary containing the rest of the challenge.

Building

Run cargo build. Binaries will drop in target/debug/.
For release mode (runs faster), run cargo build --release, which will drop binaries in target/release/.

Assembler

Usage: synasm <input_source> --out <output_binary>.

Example program:

; Simplified fibonacci program 

set $0 0            ; Init variables
set $1 1

out $0
out $1

loop:
    add $2 $0 $1    ; Add
    set $0 $1
    set $1 $2       ; Shift
    
    out $2          ; Print
        
    jmp :loop       ; Loop

VM

The VM contains the assembler, so you can pass an asm file and it'll assemble as well as execute it. Or you can just pass the binary directly.

Usage: synvm <binary_file|--asm <asm_file>> [--input_str text] [--input_file file]