Re: A86: Re: Re: external strings

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Re: Re: external strings
From: "UnEven Software" <uneven14@hotmail.com>
Date: Thu, 24 Sep 1998 20:49:14 CDT
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org



>
>> >/ ex de,hl>.  <call $4c3f> will increment ahl twice so that ahl 
points 
>> 
>> i believe that $4c3f is inefficient (time-wise) because it's on a
>> different page than _inc_ptr_ahl.  it's better to just call 
_inc_ptr_ahl
>> twice.
>> calling an off-page rom call takes 354 clocks.  most page d calls 
take 27
>> extra as well.
>> calling _inc_ptr_ahl twice would take 762 clocks in page switching, 
etc.
>> calling $4c3f uses 1089.
>> so, that's a difference of 327 clocks.  of course, you also save a 
huge 3
>> bytes!
>> 
>> ok, maybe none of you care.  i just think it's a bit wasteful.
>
>MY GOD!!! I've never seen something like this.  Is there a reference 
that
>holds
>this information?  Or do you just know it?  That's really impressive!
> 
>> -josh
>
>~DJ Love Toad
>

Get used to stuff like that.  I'm not sure if thats the only way they 
know how to explain stuff or they're showing off for us but they answer 
in "techie" crap like that a lot.  Ecspecially Dux he's really smart.  
But thats not a complaint I like when they do it it's very intimidating 
and makes me wanna learn all the stuff like that so in a way it ROCKS.

Matt

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Follow-Ups:

A86: Re: external strings

From: rabidcow@juno.com (Joshua J Seagoe)