Re: A86: a question

To: assembly-86@lists.ticalc.org
Subject: Re: A86: a question
From: Jimmy =?iso-8859-1?Q?M=E5rdell?= <yarin@acc.umu.se>
Date: Thu, 16 Apr 1998 00:33:39 +0200
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <3534E16C.ACE177D1@eden.rutgers.edu>
Reply-To: assembly-86@lists.ticalc.org


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/

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A86: a question

From: Dux Gregis <assets@eden.rutgers.edu>

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