#
# Florian SAVOURÉ
# 02/06/2020
#   
# This little code can translate ascii opcodes 
# like D8 58 A0 7F 8C 12 D0 A9 into a binary file 
# that can be used in the Apple I.
# You can use it for whatever you want idc, 
# I made it in 10 minutes so if I can save someone's 10 minutes, 
# copy this code and execute it.
#
# You can translate your asm into ascii opcodes on https://www.masswerk.at/6502/assembler.html
# I do not own this website but this is dope so go check it out
#
# Enjoy

import binascii

input_file = "<path>/wozmon.txt"
output_file = "<path>/export.rom"
rom_size = 256   # bytes

def start_convert(input_data: str):
    print("Converting '{}'".format(input_file))

    if len(input_data) <= rom_size * 2:
        # Complete with 0 until rom size
        while len(input_data) < rom_size * 2:
            input_data += "00"

        # Convert string into hex
        output_data = binascii.unhexlify(input_data)

        try:
            # Convert the string into a bin file
            with open(output_file, 'wb') as f:
                f.write(output_data)
            print("Done !\nOutput file path : '{}' ".format(output_file))
        except PermissionError:
            print("Failed to write output file at '{}' : Permission denied...".format(output_file))

    else:
        print("File is to big !\nFile size: {} bytes\nRom size: {} bytes".format(len(input_data) // 2, rom_size))

# Read input file and make it a string
try:
    with open(input_file, 'r') as f:
        input_data = f.read().replace('\n', '').replace(' ', '')
    start_convert(input_data)
except FileNotFoundError:
    print("File '{}' not found".format(input_file))


# if you want to test it with a real program, here is the Woz monitor dump from the Apple I's rom

# sha256    e5af0d1c4057bd8e0ef5cb069c208ff7cc0984a7dff53b12c5cf119de8cb5c25

# D8 58 A0 7F 8C 12 D0 A9
# A7 8D 11 D0 8D 13 D0 C9
# DF F0 13 C9 9B F0 03 C8
# 10 0F A9 DC 20 EF FF A9
# 8D 20 EF FF A0 01 88 30
# F6 AD 11 D0 10 FB AD 10
# D0 99 00 02 20 EF FF C9
# 8D D0 D4 A0 FF A9 00 AA
# 0A 85 2B C8 B9 00 02 C9
# 8D F0 D4 C9 AE 90 F4 F0
# F0 C9 BA F0 EB C9 D2 F0
# 3B 86 28 86 29 84 2A B9
# 00 02 49 B0 C9 0A 90 06
# 69 88 C9 FA 90 11 0A 0A
# 0A 0A A2 04 0A 26 28 26
# 29 CA D0 F8 C8 D0 E0 C4
# 2A F0 97 24 2B 50 10 A5
# 28 81 26 E6 26 D0 B5 E6
# 27 4C 44 FF 6C 24 00 30
# 2B A2 02 B5 27 95 25 95
# 23 CA D0 F7 D0 14 A9 8D
# 20 EF FF A5 25 20 DC FF
# A5 24 20 DC FF A9 BA 20
# EF FF A9 A0 20 EF FF A1
# 24 20 DC FF 86 2B A5 24
# C5 28 A5 25 E5 29 B0 C1
# E6 24 D0 02 E6 25 A5 24
# 29 07 10 C8 48 4A 4A 4A
# 4A 20 E5 FF 68 29 0F 09
# B0 C9 BA 90 02 69 06 2C
# 12 D0 30 FB 8D 12 D0 60
# 00 00 00 0F 00 FF 00 00