98 lines
3.6 KiB
Python
Executable File
98 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import argparse
|
|
import macresources
|
|
import sys
|
|
import struct
|
|
import string
|
|
|
|
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('src', help='rdump file')
|
|
parser.add_argument('dest', help='binary dest (may also create .txt file)')
|
|
parser.add_argument('-rt', action='store', metavar='type=ID', default='CODE=0', help='jump table resource (usually CODE=0)')
|
|
args = parser.parse_args()
|
|
|
|
args.rtype = args.rt.partition('=')[0].encode('mac_roman')
|
|
args.rid = int(args.rt.partition('=')[2])
|
|
|
|
with open(args.src, 'rb') as f:
|
|
resources = list(macresources.parse_rez_code(f.read(), original_file=f.name))
|
|
|
|
resources = [r for r in resources if r.type == args.rtype and r.id >= args.rid]
|
|
resources.sort(key=lambda r: r.id)
|
|
|
|
if not resources or resources[0].id != args.rid:
|
|
sys.exit('Resource %s not found in %s' % (args.rt, args.src))
|
|
|
|
jt_resource, *other_resources = resources
|
|
|
|
bigboy = bytearray()
|
|
for i, r in enumerate(resources):
|
|
while len(bigboy) < i * 0x10000: bigboy.append(0)
|
|
bigboy.extend(r)
|
|
|
|
with open(args.dest, 'wb') as f:
|
|
f.write(bigboy)
|
|
|
|
with open(args.dest + '.py', 'w') as idascript:
|
|
# Find MacsBug symbols
|
|
namedict = {}
|
|
for b in range(0, len(bigboy), 2):
|
|
if bigboy[b:b+2] == b'NV': # link a6, starting a compiled function
|
|
for c in range(b+2, len(bigboy), 2):
|
|
if bigboy[c:c+2] == b'NV': break
|
|
if 0x81 <= bigboy[c] < 0xb0:
|
|
strlen = bigboy[c] & 0x0F
|
|
if strlen < 2: break
|
|
namestr = bigboy[c+1:c+1+strlen]
|
|
if len(namestr) < strlen: break
|
|
namestr = namestr.decode('latin-1')
|
|
if not all(c in (string.ascii_letters + string.digits + '_') for c in namestr): break
|
|
if strlen % 2 == 0 and bigboy[c+1+strlen:c+1+strlen+1] not in b'\0': break
|
|
|
|
namedict[b] = namestr
|
|
break
|
|
|
|
# Make some neat names for the segments...
|
|
segnames = {}
|
|
for r in other_resources:
|
|
if r.name:
|
|
segnames[r.id - args.rid] = ''.join(c for c in r.name if c in (string.ascii_letters + string.digits))
|
|
else:
|
|
segnames[r.id - args.rid] = f'seg_{r.id-args.rid:X}'
|
|
|
|
jt_size, a5_offset_of_jt = struct.unpack_from('>LL', jt_resource, 8)
|
|
|
|
for jt_ofs in range(16, 16 + jt_size, 8):
|
|
ofs, be_3f3c, segnum, be_a9f0 = struct.unpack_from('>HHHH', jt_resource, jt_ofs)
|
|
if be_3f3c != 0x3f3c or be_a9f0 != 0xa9f0: break
|
|
ofs += 4 # not sure what the leading stuff is?
|
|
|
|
bigboy_ofs = ((segnum - args.rid) * 0x10000) + ofs
|
|
a5_ofs = jt_ofs - 16 + a5_offset_of_jt + 2
|
|
|
|
cool_name = f'{segnames[segnum - args.rid]}_'
|
|
if bigboy_ofs in namedict:
|
|
cool_name += namedict[bigboy_ofs]
|
|
del namedict[bigboy_ofs]
|
|
else:
|
|
cool_name += f'{bigboy_ofs:X}'
|
|
|
|
print(f'MakeFunction(0x{bigboy_ofs:X}); MakeName(0x{bigboy_ofs:X}, "{cool_name}")', file=idascript)
|
|
|
|
call_to_me = struct.pack('>H', a5_ofs)
|
|
bb_i = -1
|
|
while 1:
|
|
bb_i = bigboy.find(call_to_me, bb_i+1)
|
|
if bb_i == -1: break
|
|
if bb_i % 2: continue
|
|
if bigboy[bb_i-2:bb_i] not in (b'\x4e\xad', b'\x48\x6d'): continue # jsr/pea
|
|
|
|
# Okay, found one
|
|
print(f'MakeCode(0x{bb_i-2:X}); op_man(0x{bb_i-2:X}, 0, "{cool_name}")', file=idascript)
|
|
|
|
for bigboy_ofs, name in sorted(namedict.items()):
|
|
cool_name = f'{segnames[bigboy_ofs >> 16]}_{name}'
|
|
print(f'MakeFunction(0x{bigboy_ofs:X}); MakeName(0x{bigboy_ofs:X}, "{cool_name}")', file=idascript)
|