Re: A85: Dumb question

To: <assembly-85@lists.ticalc.org>
Subject: Re: A85: Dumb question
From: "Michael Pearce" <mpearce@bbnow.net>
Date: Wed, 10 Mar 1999 21:02:47 -0600
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-85@lists.ticalc.org
Reply-To: assembly-85@lists.ticalc.org


Unluckily, most of the source code i had at the time is gone (got a new
computer and didn't transfer all of the code.. but atleast i got Solomon's
Key which should be finished in a couple of weeks).  Like i said, it gave
very comparable results to PutSprite and maybe 5 bytes larger, so i never
even used it in my own game (i was working on Solytare at the time).  Wait,
maybe i didn't use it in Solytare because it didn't do OR drawing.  Yeah,
that was probably the reason but i'm not for sure.  Does your routine
completely rotate one row at a time or does it do 1 rotate then move to the
next row?

-mike pearce

-----Original Message-----
From: JayEll64@aol.com <JayEll64@aol.com>
To: assembly-85@lists.ticalc.org <assembly-85@lists.ticalc.org>
Date: Wednesday, March 10, 1999 7:52 PM
Subject: Re: A85: Dumb question


>
>In a message dated 3/10/99 4:34:22 PM MST, mpearce@bbnow.net writes:
>
>> Just wondering, how many 8X8 sprite per second?  I wrote my own routine
that
>>  also used rotating a couple of years ago, but the worst case performance
>was
>>  similar to PutSprite so i never released the source.  I assume that you
are
>>  quoting the best case performance (when the sprite is on a border
>boundry)??
>
>Well, I *think* I was quoting a worst case performance, to the best of my
>knowledge (I'll have to test it again sometime).  Basically what I did was
>display the sprite 65535 times at (0,0), or the upper left corner.  At the
>time I had completed the sprite routine, it didn't have a seperate aligned-
>sprite routine (nor does it have one now...yet).  Also, this is where each
>sprite byte had to be rotated the most (8 times) (each sprite byte could've
>definately been not rotated at all, but that's not how the routine worked).
>Anyway, I tested to see how fast it displayed all 65535, and I clocked it
at
>just under 30 seconds, which comes to approximately 2200 sprites/second.
>Jimmy advertised his PutSprite routine at his ZShell/Usgard school to be
674
>sprites/second (just for reference, NASR_WARP was clocked at 300 or 400
>sprites/second) (Guess I should mention these are 8x8 regular sprites).  So
>it's about 3 times faster.  I'd like to see your sprite routine
source...and
>maybe you can look at mine to see just how it works (it's fully commented)
at
>Macross' homepage.
>
>I'm not saying mine is the absolute fastest, of course!  I have gotten an
>email from Jimmy boasting an engine he was working on that would do ultra
fast
>scrolling and sprite putting...he claimed the sprite routine could display
>3000 sprites/second!  I'm not sure how far he is on working on this, or
even
>if he is still working on it...
>
>JL
>