gloky information 159 glöps
- general:
- level: user
- personal:
- first name: vincent
- last name: guesdon
- cracktro Atari ST Voyage by Gloky & Dubmood [web]
- Quote:
Like that sprite rout! Seems very fast to me!
the main loop of the scroller (the display rout) is only 32 scanlines with use of register Xn
(limited amount of bitmap per frame, since the scroll is made of 8x8 caractere
and for the sprite routine i use movep when it's possible (with the small sprites, practicaly always)
movep.w ofc(a0),d0
and.w #mask8bit,d0
or.w #bitmap,d0
movep.w d0,ofc(a0) ; 2 plan masked
also, the calculs of 4 sinus for position is as fast as
move (a0)+,d0
add (a1)+,d0 ; cos1+cos2 of x
and
move (a2)+,d1
add (a3)+,d1
move.l d1,a6
move.w (a6),d2 int(y/4)*160
move.l d0,a6
add (a6)+,d2 + int(x/16)*8 = offset x
move.w (a6)+,d3 ; d3 = numero code genere of sprite
and that's all i think, i'm not awake this morning - isokadded on the 2025-11-09 09:37:53
- demo Acorn Dead or Alive by Desire [web]
- nice !
- rulezadded on the 2025-11-01 17:37:57
- demo Amiga OCS/ECS Impressions by AMIGALS [web]
- arty
- rulezadded on the 2025-10-27 09:12:29
- demo Commodore PET PETpeeve by Rabenauge [web] & Plush [web] & Crest
- very nice
- rulezadded on the 2025-10-27 09:09:43
- demo TIC-80 Prelude to Neobyte by Spectrox
- great !
- rulezadded on the 2025-10-24 17:48:08
- demo Atari STe Extended Knobhead by Dead Hackers Society [web]
- another great demo by dhs
- rulezadded on the 2025-08-03 17:46:47
- intro Atari STe VibeCoding by Defence Force [web]
- very nice prod
- rulezadded on the 2025-07-23 09:11:53
- demo Atari STe Short and Curly by Avena [web] & Reservoir Gods [web]
- the wave are fabulous
the design, all
the ideas - rulezadded on the 2025-07-19 23:14:36
- intro Atari STe Industrially Safe Demodisk #37 intro by Effect
- nice intro, i love the music and the bee fx
- rulezadded on the 2025-07-02 10:12:24
- demo Atari ST ELLIPSIS by Ribbon [web] & Dubmood [web]
- lot of dots
- rulezadded on the 2025-06-10 21:50:43
account created on the 2017-07-10 23:29:05
