[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Franklin Ace
- Subject: Re: Franklin Ace
- From: david@wabbit.its.uow.edu.au (David E A Wilson)
- Date: 1997/02/15
- Newsgroups: comp.sys.apple2
- Organization: University of Wollongong, NSW, Australia.
- References: <5doni6$610@inet-nntp-gw-1.us.oracle.com> <19970211175600.MAA04214@ladder01.news.aol.com>
rubywand@aol.com writes:
>Using Copy II+ or some similar utility with sector or block edit
>capabilities, search for hex bytes
> AE B3 FB E0 38 and change to A2 EA EA E0 38.
What does this fix/change?
>Search for hex bytes
> 69 0B D0 03 and change to 69 0B EA EA.
This fixes the checksum of the string APPLE ][. My patch for this is one
byte shorter - find the same sequence of bytes and change the 03 into 00.
D0 03 is a branch and changing the offset from 3 to 0 turns it into a two
byte NOP.
--
David Wilson Dept CompSci Uni Wollongong Australia david@cs.uow.edu.au