Re: A83: Re: Re: A89: ASM High Score Archives??


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Re: A83: Re: Re: A89: ASM High Score Archives??




A checksum is a value that "checks" or verifies that a block of data is
correct.  For calculator variable file, the last two bytes of the file
contains a 16-bit checksum that is just the sum of all the bytes in the file
excluding the checksum (truncated to 16-bits).

-----Original Message-----
From: Master M <benjamin99@juno.com>
To: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>
Date: Wednesday, October 28, 1998 9:23 PM
Subject: Re: A83: Re: Re: A89: ASM High Score Archives??


>
>What is a checksum?
>
>On Tue, 27 Oct 1998 17:31:48 -0600 "David Phillips" <electrum@tfs.net>
>writes:
>>
>>You wouldn't.  Anyone who knows anything about .8xP/.8xS files could
>>change
>>the score with a hex editor, save it and fix the checksum.  And there
>>are
>>even programs to fix the checksums for you.  You could also change
>>the
>>score/name in the source and recompile it.
>>
>>I don't know why you would want to, but you could...
>>
>>-----Original Message-----
>>From: Bryan Rabeler <brabeler@ticalc.org>
>>To: assembly-89@lists.ticalc.org <assembly-89@lists.ticalc.org>
>>Cc: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>;
>>assembly-82@lists.ticalc.org <assembly-82@lists.ticalc.org>;
>>assembly-85@lists.ticalc.org <assembly-85@lists.ticalc.org>;
>>assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
>>Date: Tuesday, October 27, 1998 5:10 PM
>>Subject: A83: Re: A89: ASM High Score Archives??
>>
>>
>>>
>>>How would you verify the high score is genuine?
>>>
>>>--
>>>Bryan Rabeler <brabeler@ticalc.org>
>>>   File Archives, News, Features, Newsletter, and HTML
>>>   the ticalc.org project - http://www.ticalc.org/
>>>
>>>On Tue, 27 Oct 1998, Miles Raymond wrote:
>>>
>>>> Why doesn't ticalc.org or TI-files or some other place put up a ASM
>>High
>>Score Archive, where people can submit the program with their high
>>score in
>>it.  Has this already been done, and I just overlooked it?
>>>>
>>>> -Miles Raymond
>>>>
>>
>>
>
><<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>
>       See ya,
>       Mastermind
>
>       http://www.bigfoot.com/~mastermind5
>
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