|
|
Atari coding BBS
| Re: Blitter sideways rastersplits |
|---|
|
Posted by: evil
|
Apr,12.2012-11:12
|
I've done a "truecolour" chunky mode in overscan using blitter for feeding colours. Similar to "where's my fanta"-screen in the Base Cage demo by Live! but in overscan.
So yes you can definitly benefit from it in overscan as well.
Starting the blitter is something like:
d0 = number of lines to copy, 1 in the case
d1 = blitter control value, in this case %11000000
a0 = $ffff8a38
a1 = $ffff8a3c
move.w d0,(a0) ;2n
move.b d1,(a1) ;2n+2n+2n*numwords
= 6 nops before it starts to do it's work. 7 nops on Mega STe.
Read more about the blitter here:
http://atari-ste.anvil-soft.com/html/devdocu3.htm
--
Anders Eriksson
ae@dhs.nu
|
[All messages in this thread] [Start new thread]
|
Topic
|
Posted by
|
Date
|
|
Blitter sideways rastersplits
|
Alien / ST-CNX
|
Apr,10.2012-07:13
|
|
Re: Blitter sideways rastersplits
|
evil
|
Apr,10.2012-09:58
|
|
Re: Blitter sideways rastersplits
|
Cyprian
|
Apr,10.2012-10:54
|
|
Re: Blitter sideways rastersplits
|
sqward
|
Apr,11.2012-13:37
|
|
Re: Blitter sideways rastersplits
|
Cyprian
|
Apr,12.2012-10:32
|
|
Re: Blitter sideways rastersplits
|
Alien/ST-CNX
|
Apr,12.2012-01:07
|
|
Re: Blitter sideways rastersplits
|
Cyprian
|
Apr,12.2012-10:31
|
|
Re: Blitter sideways rastersplits
|
evil
|
Apr,12.2012-11:12
|
|
Re: Blitter sideways rastersplits
|
Alien/ST-CNX
|
Apr,12.2012-17:35
|
|
Re: Blitter sideways rastersplits
|
Mr.Styckx
|
Apr,13.2012-15:48
|
|
Re: Blitter sideways rastersplits
|
nativ
|
Apr,13.2012-23:40
|
What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
|
