RE: A85: Pixel mover

To: "'assembly-85@lists.ticalc.org'" <assembly-85@lists.ticalc.org>
Subject: RE: A85: Pixel mover
From: Estock Family <estocks@sprynet.com>
Date: Wed, 12 Nov 1997 21:47:16 -0500
Reply-To: assembly-85@lists.ticalc.org

OK I want to get this straight... I know all the people say the unibomber is off the news and what not (although his trail is coming up) BUT this is something that has been bugging me forever... I think (no offense)the person doing this is a big idiot who wants to be cool because he spelled his name wrong it is spelled UNABOMBER...Jeez... with an "A" not an "I"...

Whew, I got if off my chest

David
Sorry if I offended anyone.

-----Original Message-----
From:	Jared Ivey [SMTP:unibomer@juno.com]
Sent:	Wednesday, November 12, 1997 6:58 AM
To:	assembly-85@lists.ticalc.org
Subject:	Re: A85: Pixel mover

On Tue, 11 Nov 1997 21:26:23 -0500 egillespie@juno.com (Erik L Gillespie)
writes:
>ok, i understand why it subtracts 7 from a but how
>does the calculator know when you want to subtract
>and when you want to add?  for instance would this
>statement:
>
>add a, $B3
>
>add 179 to a or would it subtract 77 from a?
>(might not be the right #s but i think you get the idea)

They are basically the same, but the major difference is the way the
carry bit is affected.
add a, $B3 would add 179, but if the number in a was larger than 76 it
would be as if 77 had been subtracted and the carry bit was set. It would
still actually add.

Sincerely,
The Unibomer

Jared Ivey
Unibomer@Juno.com
http://www.geocities.com/SiliconValley/Vista/7342

"The goal of Computer Science is to build something that will last at
least until we've finished building it." -- Unknown

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Follow-Ups:

Re: A85: Pixel mover

From: Mic Mullins <micmullins@geocities.com>