Re: A86: a question

To: assembly-86@lists.ticalc.org
Subject: Re: A86: a question
From: Dux Gregis <assets@eden.rutgers.edu>
Date: Wed, 15 Apr 1998 20:27:56 -0400
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
References: <3.0.5.32.19980416003339.00834aa0@mail.acc.umu.se>
Reply-To: assembly-86@lists.ticalc.org


Thanks  :-)

Jimmy Mårdell wrote:

> At 12:33 1998-04-15 -0400, you wrote:
> >
> >What's the most efficient way (in terms of speed) of doing something
> >like ld de,(ix+hl)?
>
> ex de,hl    ; 1 cycle,   4 T states
> add ix,de   ; 4 cycles, 15 T states
> ld e,(ix)   ; 5 cycles, 19 T states
> ld d,(ix+1) ; 5 cycles, 19 T states
>
> is the most straightforward solution, and probably the fastest
> as well. Maybe you can use some undocumented instructions to
> speed it up. add ix,hl shouldn't be possible though.
>
> --
> Real name: Jimmy Mårdell
> IRC......: Yarin
> Email....: mailto:yarin@acc.umu.se      <-- NEW E-MAIL ADDRESS!!!!
> Homepage.: http://www.algonet.se/~mja/

References:

Re: A86: a question

From: Jimmy =?iso-8859-1?Q?M=E5rdell?= <yarin@acc.umu.se>

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