#!/usr/bin/env python3

import sys

if len(sys.argv) != 2:
    print(f"Usage: {sys.argv[0]} [filename]")
    sys.exit(1)

def decode(ins: int) -> str:
    if (ins & 0x8000 == 0):
        # mov? ldr? ldi? aaaaaaaaaaa....
        return f"mov A, #{ins}"
    else:
        return "<unknown>"

try:
    with open(sys.argv[1], "rb") as f:
        while True:
            insb = f.read(2)
            if not insb: break
            ins = int.from_bytes(insb)
            print(f"\t{insb[0]:02x} {insb[1]:02x}\t{decode(ins)}")

except FileNotFoundError:
    print(f"File not found.")
    sys.exit(1)
# head, tail...
except BrokenPipeError:
    sys.exit(0)