44 lines
1.2 KiB
Python
Executable File
44 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import sys
|
|
import struct
|
|
|
|
|
|
|
|
# Awful hack to run code through vasm
|
|
def assemble(the_code):
|
|
with open('/tmp/vasm.elliot', 'w') as f:
|
|
f.write(the_code)
|
|
|
|
import os
|
|
from os import path
|
|
assembler = path.join(path.dirname(path.abspath(__file__)), 'vasm-1/vasmm68k_std')
|
|
os.system(f'{assembler} -quiet -Fbin -pic -o /tmp/vasm.elliot.bin /tmp/vasm.elliot')
|
|
|
|
with open('/tmp/vasm.elliot.bin', 'rb') as f:
|
|
return f.read()
|
|
|
|
def write_asm(f, asm):
|
|
f.write(assemble(f' .org {hex(f.tell())} \n rom: \n {asm}'))
|
|
|
|
|
|
|
|
with open(sys.argv[1], 'r+b') as f:
|
|
# I have implemented Snefru, so this is no longer needed:
|
|
# Do the dodgy... cancel signature validation!
|
|
# f.seek(0x21A84)
|
|
# while f.tell() < 0x21A98:
|
|
# f.write(b'Nq') # nop
|
|
|
|
# Work around Mini vMac's cutesy many-drives hack (it steals out preferred drivenum of 4 from us)
|
|
f.seek(0x1DF51) # AddMyDrive: moveq #4,d9
|
|
f.write(b'\x10')
|
|
f.seek(0x1DFDF) # myExtFSFilter: cmp.w #4,d0
|
|
f.write(b'\x10')
|
|
|
|
# Enable this to make a SysError, for rudimentaly debug output
|
|
# for x in '218DA'.split():
|
|
# x = eval('0x' + x)
|
|
# f.seek(x)
|
|
# f.write(assemble(f' move.l #{x},D0 \n .2byte 0xA9C9'))
|