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Hacky Pippin ROM support

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The Pippin ROM has lower checksums than expected, by about 4%. Without
recovering the missing data, this probably cannot be replicated, so we
just detect it and live with it.
This commit is contained in:
Elliot Nunn 2019-06-02 09:55:43 +08:00
parent 47b0cb1c38
commit b5af802944
1 changed files with 10 additions and 1 deletions
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11
tbxi/powerpc_dump.py
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@ -119,10 +119,19 @@ def find_configinfo(binary):
allsums = b''.join(x.to_bytes(4, byteorder='big') for x in sum32)
allsums += sum64.to_bytes(8, byteorder='big')
# if i == 0x30d000: # for figuring out pippin in future
# print(*['%02X' % x for x in allsums])
# print(*['%02X' % x for x in binary[i:i+len(allsums)]])
if binary[i:i+len(allsums)] == allsums:
break
else:
return
# Hack for Pippin ROM, which has bad checksum
for i in range(0x300000, len(binary), 0x100):
if binary[i+0x64:].startswith(b'Boot '):
break
else:
return # failed!
# Which structs share the BootstrapVersion signature?
for j in range(0, len(binary), 0x100):