Search found 349 matches

by earx
Thu Jan 20, 2011 4:56 pm
Forum: 680x0
Topic: Line routines
Replies: 20
Views: 9084

Re: Line routines

ssb: it's useful to clear the line you painted on the screen previously (i.e. "background restoral"). if there aren't too many line pixels being painted it's actually faster than clearing the entire screen. i do this in the dotlines screen in the "Meikever" (June bug) demo.
by earx
Wed Sep 22, 2010 7:42 am
Forum: 680x0
Topic: Subroutine an data alignment (040/060)
Replies: 15
Views: 3132

Re: Subroutine an data alignment (040/060)

I think nor CNOP nor ALIGN worked for me. Nice directives but everytime I loaded Mon, it didn't show any alignment at all :/ So, the only way is to relocate chunks of code to aligned positions. This introduces problems with instruction cache.. So, you now have to use either a load-align-pexec scheme...
by earx
Tue Nov 17, 2009 2:48 pm
Forum: Coding
Topic: best way to draw polygon lines?
Replies: 7
Views: 2230

Re: best way to draw polygon lines?

delta polys are only useful for simple but very very big objects. like a cube or dodecahedron covering the entire screen. that sort of thing. it works only on polygons that keep the same colour each frame. this is because only the differences between animation frames are drawn. and yes, it uses hlin...
by earx
Thu Nov 12, 2009 2:50 pm
Forum: Demos
Topic: FALCON WORKS at last :)
Replies: 57
Views: 17496

Re: FALCON WORKS at last :)

yerz: congrats! the falcon is a fun machine. but as you now know, nowadays you gotta fiddle a bit with hardware. ;) i love the standard falcon as well. a ct60 is powerful but isn't my style. i still dig the good old 030+dsp ;) good luck making some music with it. have you found a favourite tracker s...
by earx
Thu Nov 12, 2009 2:34 pm
Forum: Coding
Topic: best way to draw polygon lines?
Replies: 7
Views: 2230

Re: best way to draw polygon lines?

zamuel: best way is to do like you say. on bitplane mode it's always the same. use mask tables for left and right edges.. and just moves inbetween. that's the basic idea. implementations and variants: there are many variants! 1 or multi bitplane hlines for starters. you can use jumptables for the mo...
by earx
Fri Jan 23, 2009 3:48 pm
Forum: Website Discussions
Topic: Why did Atari Legend turn in to the Greek Wrestling site?
Replies: 50
Views: 9261

Re: Why did Atari Legend turn in to the Greek Wrestling site?

i am curious, what was xerus' riddle?
by earx
Sat Oct 18, 2008 10:52 am
Forum: Demos
Topic: "Beams" featured in demo scene magazine
Replies: 12
Views: 7797

Re: "Beams" featured in demo scene magazine

thanks man, hahaha. a bit late :) but yeah, crazyq helped me out. :)
by earx
Wed Jul 02, 2008 12:38 pm
Forum: Demos - General
Topic: fujibird!
Replies: 5
Views: 2789

Re: fujibird!

i think i had no problems running the 8 bit fujiboink on my 800XL. it was a nice little demo indeed.
by earx
Tue Jul 01, 2008 11:48 am
Forum: Professionals
Topic: Falcon IDE - CF
Replies: 10
Views: 2564

Re: Falcon IDE - CF

Ppera: 3.3 MB/sec over the Falcon's IDE? that's amazing. Highest I ever got was something like 2.5 or so. Do you have an accelerated ST bus?
by earx
Tue Jul 01, 2008 11:45 am
Forum: Demos
Topic: X-Perience by Abstract
Replies: 6
Views: 6086

Re: X-Perience by Abstract

great demo huh (except for the boring endpart ;))

deez is right about that zoomer. prerendered is the way most ppl do it. there are also ways to avoid the 'jump' when changing from one prerendered frame to another.
by earx
Wed Jun 04, 2008 8:56 am
Forum: Hardware
Topic: Biggest flaw in Atari ST's design
Replies: 250
Views: 46937

Re: Biggest flaw in Atari ST's design

seems i was wrong.. space shuttle uses 8086 or 80386 later on. these special radiation hardened versions, which do cost alot.

sorry for all the offtopic.
by earx
Wed Jun 04, 2008 8:42 am
Forum: Hardware
Topic: Biggest flaw in Atari ST's design
Replies: 250
Views: 46937

Re: Biggest flaw in Atari ST's design

in fact, space shuttles use the 80186. yes, that thing is about as rare as the 68010 or maybe even more so ;) NASA still ordered a *new* batch of 80186 quite recently. costs a shitload of money for technology which was outdated in 1990 already. ratboy: the magic pockets crack worked great. even till...
by earx
Wed May 28, 2008 7:50 pm
Forum: News & Announcements
Topic: osprey atari coldfire + arm still in development
Replies: 111
Views: 19030

Re: osprey atari coldfire + arm still in development

the 68030 on a fpga is a dream. it has 6 times the transistor count of the 68000. a non-cycle-accurate version could maybe be feasible. with dedicated hardware guru (or two) working around the clock.. the bitfield instructions, crazy addressing modes, cache controller and especially the horribly ove...
by earx
Wed May 28, 2008 11:39 am
Forum: Hardware
Topic: Biggest flaw in Atari ST's design
Replies: 250
Views: 46937

Re: Biggest flaw in Atari ST's design

Finally, not long time ago, Motorola lost his best consumer, Apple :( and has powerpc cores in all 3 major console platforms. </wiseguy> i still don't know what hacked software means. i hope our ratboy is not ratboy/elite. did you do that magic pockets crack long ago? i started the disk editor, che...
by earx
Wed May 28, 2008 7:12 am
Forum: News & Announcements
Topic: osprey atari coldfire + arm still in development
Replies: 111
Views: 19030

Re: osprey atari coldfire + arm still in development

Using an 8 yo "end-of-life" chip (SA-1110) in a new design today is total madness!


that would have made sense on any other bbs. *goes back to writing delta fillers on his 1040ST*
by earx
Wed May 21, 2008 6:01 pm
Forum: Coding
Topic: Preshifting with blitter?
Replies: 46
Views: 7809

Re: Preshifting with blitter?

zamuel: interesting! the blitter isn't omnipotent, of course. the nice thing about it is, though. that's it's a state machine. you only change the registers you want. no need to setup everything all over again. and there's another thing, which can hopefully help you out: run the blitter in bus shari...
by earx
Tue May 20, 2008 9:52 am
Forum: Hardware
Topic: Biggest flaw in Atari ST's design
Replies: 250
Views: 46937

Re: Biggest flaw in Atari ST's design

an a500 in 1985 rotfl. with 1.44 MB RAM (?!) boot disk. what the fup is that? bootable ram? you had flash in 1985 too? ;)) someone wrote about the spongy ST keyboard. idd, many 8 bit machine keyboards felt a bit tougher. but it didn't withhold programmers to make a few million strokes ;) SCSI could ...
by earx
Tue May 20, 2008 9:19 am
Forum: Coding
Topic: Blitter interrupt
Replies: 5
Views: 1877

Re: Blitter interrupt

like ppera says, use bit 3 in these MFP registers. $10C should indeed be the place to put the interrupt vector.

$FFFFFA09
$FFFFFA0D
$FFFFFA11
$FFFFFA15

$FFFFFA1B you probably need to set this baby to timer stop (0).. i myself only have experience with event count mode (%1000) using timer b..
by earx
Tue May 20, 2008 8:43 am
Forum: Website Discussions
Topic: Look, what I found on our beloved Internet:
Replies: 93
Views: 14337

Re: Look, what I found on our beloved Internet:

so this is the infamous dbug vs ppera thing. i still don't get what all the fuss is/was about. can't ppl just do their respective things in peace?
by earx
Tue May 20, 2008 8:32 am
Forum: Demos - General
Topic: BITS#29 Outline 2008
Replies: 9
Views: 4071

Re: BITS#29 Outline 2008

it's sad that this didn't make it into the competitions. solo: your mail was too late: after the deadline. next time, send -before- the deadline!
by earx
Tue May 20, 2008 8:27 am
Forum: News & Announcements
Topic: osprey atari coldfire + arm still in development
Replies: 111
Views: 19030

Re: osprey atari coldfire + arm still in development

i also want to add that closed source is fine up until a certain point.. upsides: allows you work comfortably in your own way, 1 person can rule it with an iron fist. downsides: no automatic back-ups, no shadow engineering, no code quality control.
by earx
Tue May 20, 2008 8:24 am
Forum: News & Announcements
Topic: osprey atari coldfire + arm still in development
Replies: 111
Views: 19030

Re: osprey atari coldfire + arm still in development

eventhough i sincerely doubt the feasibility of this project i do want to encourage aRt. i will probably buy one of these babies when completed. i just hope it's less of a hassle than the whole ct60 adventure.
by earx
Thu May 15, 2008 11:49 am
Forum: Hardware
Topic: Biggest flaw in Atari ST's design
Replies: 250
Views: 46937

Re: Biggest flaw in Atari ST's design

1) YM (should have been at least an FM variant) 2) ACSI (should have been SCSI) 3) joystickport TOS was fine, it's not like a plain ST was powerful enough to run a full fledged Unix+xwindows, anyway. i'd like to stress that the st design philosphy was great: off-the-shelf components hooked up in a l...
by earx
Tue May 06, 2008 8:23 am
Forum: News & Announcements
Topic: Outline 2008 announcement
Replies: 27
Views: 5670

Re: Outline 2008 announcement

(hao: nice msx!) Outline2008 ended on sunday and was a great success! Thanks to all who visited. It was really the best edition so far with over a 100 visitors, sunny weather and loads of releases. all the demos (including pc / anim releases) are available from pouet: http://www.pouet.net/party.php?...
by earx
Mon Apr 21, 2008 12:15 pm
Forum: Coding
Topic: ST SPEECH - on Falcon?
Replies: 11
Views: 3802

Re: ST SPEECH - on Falcon?

On the speech synth part, It would be nice if one of the experts here altered ST speech to use the DAC on enabled machines(or via cartridges) just for fun though! I had the plan to use the STe DMA for it. It wouldn't be very hard. Maybe in the future.. Audio sculpture has the same engine as ST spee...

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