Re: A83: How about??
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Re: A83: How about??
Why make one when there 's already one out there. Oh well I'll do it then.
>From Conway
-----Original Message-----
From: Dimitri Hammond <dimitri@dynet.com>
To: Conway <conway@ssc.net.au>
Cc: Asembly list server <assembly-83@lists.ticalc.org>
Date: Friday, 22 May 1998 23:51
Subject: Re: A83: How about??
>
>Who cares where they are, make your own. You had the right idea, just
>look up the program in the VAT, change that one little thingamajig at the
>beginning of the program header from 05 to 06 (or vice versa) and that's
>it! The calc will just see that and make the program uneditable. It's
>fairly easy, I made a program that does it awhile back...
>
> -Dimitri
>
>
>On Fri, 22 May 1998, Conway wrote:
>
>>
>> Thank you, I didn't know that. Where are they. They don't seem to be at
>> ticalc.org.
>> -----Original Message-----
>> From: LGB240 <LGB240@aol.com>
>> To: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>
>> Date: Friday, 22 May 1998 21:27
>> Subject: Re: A83: How about??
>>
>>
>> >
>> >In a message dated 98-05-22 07:14:17 EDT, you write:
>> >
>> >There is already programs that do this on the 83. ZPROT and ZUNPROT.
>> >> I figure this is posible but I was wondering what you guys thought of.
A
>> >> program that protects and unprotects a program. I think for
protecting
>> >> programs you change one of the first bytes from 05h to 06h, and vice
>> versa
>> >> to unprotect a program. Now the only problem of this idea is how you
>> chande
>> >> it. Can you find the memory adress of this byte and then do something
>> like
>> >> this...
>> >> ld (hl), 05h
>> >> If someone can confirm this I might actually get off my butt and make
>> it.
>> >> From
>> >> ''~``
>> >> ( o o )
>> >> ____.oooO__(_)__Oooo.____
>> >> / Steven Conway \
>> >> [ ]
>> >> [ Conway@ssc.net.au ]
>> >> [ ( ) ]
>> >> \__\ (____( )______________/
>> >> \_) ) /
>> >> (_/
>> >>
>> >>
>>
>>
>
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