Re: LZ: manipulations

Subject: Re: LZ: manipulations
From: barrym <barrym@neosoft.com>
Date: Sat, 10 Aug 1996 19:10:38 -0500 (CDT)
In-Reply-To: <Pine.BSD.3.91.960810181648.27663D-100000@Starbase.NeoSoft.COM>

> On Sat, 10 Aug 1996 OoooEJoooo@aol.com wrote:
> 
> > Which type of these manipulations is most efficient???
> > 
> > Is  ld a,5
> >      ld b,a
> >      ld a,50
> >      sub b
> > 
> > More efficient than
> > 
> >      ld a,5
> >      sub 50
> >      neg
> 
> The second one is more efficient.  I wrote it without the book
> available and I didn't remember for sure that an immediate subract
> was valid, so I wrote it the way I was sure would work.


Correction!  I wrote the first one, not the second one.  However,
the second one is still faster.


Barry

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