Re: A86: Re: Greater Than/Less Than

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Re: Greater Than/Less Than
From: ComAsYuAre@aol.com
Date: Sun, 6 Dec 1998 10:38:16 EST
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org

In a message dated 12/6/98 01:17:32 Eastern Standard Time, ZeromusMog@aol.com
writes:

> Why would the carry flag be set if it's negative? Isn't the carry flag for
>  when you add past the maximum value of the register? (I.E.:
>  
>  ld a,200
>  add 100
>  
>  ???

both would.  if you had to do
  ld a,100
  sub 200

then a borrow would be needed (remember this from arithmetic?) in order to
perform the operation.  this sets the carry flag.

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