Search found 235 matches

by wietze
Wed Jun 12, 2019 5:54 am
Forum: Coding
Topic: idea. measure speed
Replies: 13
Views: 988

Re: idea. measure speed

I can profile for you if you have different routines to compare.

Just send both projects over, and ill run a compare tonite.
by wietze
Fri May 24, 2019 2:30 pm
Forum: Hardware
Topic: MonkeyJack RGB/CGA EGA YUV To VGA HD Video Converter Board HD9800
Replies: 2
Views: 1089

Re: MonkeyJack RGB/CGA EGA YUV To VGA HD Video Converter Board HD9800

Ive had 2 of these in use before, never ran into any problems.
by wietze
Sat May 18, 2019 8:52 am
Forum: 680x0
Topic: Align inside BSS section
Replies: 13
Views: 1338

Re: Align inside BSS section

I would just use a pointer and align that pointer, then copy data/code to that pointer and use it.
Or is this too complicated?
by wietze
Fri May 10, 2019 2:51 pm
Forum: Games - General
Topic: Outrun with frame counter
Replies: 192
Views: 16969

Re: Outrun with frame counter

Your suggested code seems correct; a few explicit remarks; which you most probably noticed yourself; but it never hurts to make it explicit: - you introduce a small margin of error in the value of d0 that propagates to d1 (in some cases, the margin is 255/256, and propagated by another fraction of ...
by wietze
Fri May 10, 2019 2:22 pm
Forum: Games - General
Topic: Outrun with frame counter
Replies: 192
Views: 16969

Re: Outrun with frame counter

Your suggested code seems correct; a few explicit remarks; which you most probably noticed yourself; but it never hurts to make it explicit: - you introduce a small margin of error in the value of d0 that propagates to d1 (in some cases, the margin is 255/256, and propagated by another fraction of 1...
by wietze
Sun Apr 28, 2019 4:00 pm
Forum: Coding
Topic: GFA Basic, STOS or Asm?
Replies: 30
Views: 2577

Re: GFA Basic, STOS or Asm?

godlib and c seems like a good start; for most heavy duty graphics stuff, I'd still recommend asm
by wietze
Thu Apr 18, 2019 8:47 am
Forum: 680x0
Topic: YACHT, MULU # and an extra program fetch
Replies: 10
Views: 1935

Re: YACHT, MULU # and an extra program fetch

ijor wrote:Yacht is wrong. There is no third prefetch cycle.


Is there an errata on Yacht?
by wietze
Mon Apr 15, 2019 2:32 pm
Forum: CosmosEx
Topic: CosmosEX 3.0
Replies: 74
Views: 29250

Re: CosmosEX 3.0

Website is updated with a statusupdate.
by wietze
Wed Mar 20, 2019 11:48 pm
Forum: 680x0
Topic: LZ4 decoder (assembler)
Replies: 41
Views: 12614

Re: LZ4 decoder (assembler)

Apart from the 4k binary Cyprian tried, has anyone done any other tests regarding pack ratio? I'm still favouring ARJ mode 4 and 7 for max pack ratio, but this looks like a great alternative for when depack speed is crucial. Regarding packing ratio, if you're looking for best ratio ever, use shrink...
by wietze
Mon Mar 18, 2019 6:48 pm
Forum: CT60 / CT63 Area
Topic: CT60e is coming :)
Replies: 539
Views: 192308

Re: CT60e is coming :)

Definitely interested in the ct60e!
by wietze
Sat Mar 16, 2019 9:18 pm
Forum: Professionals
Topic: Removing a mighty sonic board
Replies: 7
Views: 1105

Re: Removing a mighty sonic board

To disable the original CPU you have to lift off CPU pin 16 and lift off pin 17 too and put pin17 to GND. To activate the old original CPU you have to resolder CPU pin16 to the Mainboard CPU16 pad and CPU pin17 do the same ... Yup I looked into it. It seemed to be under some glue, and the cpu is no...
by wietze
Sat Mar 16, 2019 8:01 pm
Forum: Professionals
Topic: Removing a mighty sonic board
Replies: 7
Views: 1105

Re: Removing a mighty sonic board

frank.lukas wrote:Not so easy ...

There are two pins from the original CPU lift off and 9 wire solder in the Mainboard. Take a look into the DOITF030 ...


Would this imply I need to get a new 68030 cpu to replace the old one?

Desoldering the wires seem something that is achievable.
by wietze
Sat Mar 16, 2019 5:37 pm
Forum: Professionals
Topic: Removing a mighty sonic board
Replies: 7
Views: 1105

Removing a mighty sonic board

Ola, I recently became a (humble) owner of an atari falcon. I found that it currently has a mighty sonic board (32mhz cpu and up to 32mb fastram).

Im still a total falcon noob, and am wondering how easy it is to remove this board.

Any ideas?
by wietze
Thu Mar 14, 2019 6:50 pm
Forum: News & Announcements
Topic: We Love Atari (Volume One)
Replies: 72
Views: 11006

Re: We Love Atari (Volume One)

I did order the book, but something went wrong with the address; Ive sent an email to payment@zafinnbooks.com ; please react :)
by wietze
Tue Oct 16, 2018 4:52 am
Forum: Hardware
Topic: Help getting my ST out of the attic and hooked up to a modern LCD monitor
Replies: 17
Views: 7744

Re: Help getting my ST out of the attic and hooked up to a modern LCD monitor

My reaearch have found me 5 things; 1. Gbs board, converts rgb to vga: pro: 50fps conversion, cheap, con: some small quality artefacts, very slight delay 2. Scart to hdmi converter; pro: excellent quality, cheap, con: 25 fps conversion rate, slight delay 3. Retrotink: composite to vga conversion, pr...
by wietze
Sat Oct 13, 2018 8:58 am
Forum: 680x0
Topic: efficient polygon drawing
Replies: 24
Views: 11838

Re: efficient polygon drawing

I think most of the things that are important are already mentioned by Daniel. In terms of speed, most cpu time is usually spend on the filling. This can be done horizontally (per scanline) or vertically (per y-block). Pulse contains both a xorfiler (for the cube) and a hline filler (for the tunnel)...
by wietze
Fri Oct 05, 2018 6:59 am
Forum: STOS
Topic: couple of new STOS demoscreens
Replies: 21
Views: 2506

Re: couple of new STOS demoscreens

Nope, the deadline for Deadline remote submissions is saturday 1300 iirc. And the website is https://demoparty.berlin
Ive got confirmed at at least one atari ste will be at the party place to show the demos on the real hardware during the compos!
by wietze
Thu Oct 04, 2018 7:07 pm
Forum: STOS
Topic: couple of new STOS demoscreens
Replies: 21
Views: 2506

Re: couple of new STOS demoscreens

Awesome. I loved the PAL.TOS. Scrollers gave me a lovely laugh too!

You could have submitted these to Deadline you know!!!

More please :) Good to see you active!

Regards,
Wietze
by wietze
Tue Sep 25, 2018 7:54 pm
Forum: 680x0
Topic: Yoomp conversion experiment
Replies: 17
Views: 5945

Re: Yoomp conversion experiment

On chunky to planar: http://alive.atari.org/alive8/c2p.php My research (most of it, until further releases) on chunky to planar: https://bitbucket.org/spkr/c2pdev/src/default/c2p.s I think people are thinking along the lines of using the above c2p code to: - tunnel can be done using an offset map (t...
by wietze
Mon Sep 10, 2018 9:24 pm
Forum: Games - General
Topic: R0X ZER0
Replies: 51
Views: 22299

Re: [Maybe] Beta testers needed

You know you can count on me Tomchi, watcha need !?
by wietze
Mon Jul 09, 2018 6:08 am
Forum: Demos
Topic: We won!
Replies: 24
Views: 4351

Re: We won!

thomas3 wrote:Super cute transitions <3 love it

Yo SPKR - when do we get to see the SMFX prods from this weekend? :D


They up ;)
by wietze
Sun Jul 08, 2018 12:58 pm
Forum: Demos
Topic: We won!
Replies: 24
Views: 4351

Re: We won!

Congratulations! Outstanding demo, silky smooth! We welcome our new Swedish Sommarhack overlords! ;)
by wietze
Mon Jun 25, 2018 5:55 pm
Forum: Steem
Topic: Bug reporting for Steem SSE - do it HERE
Replies: 0
Views: 2347

Bug reporting for Steem SSE - do it HERE

Since Steven doesnt attend here, this is where you put your bugs:

https://sourceforge.net/p/steemsse/forum/bugs/
by wietze
Wed Jun 20, 2018 7:05 pm
Forum: Hardware
Topic: RGB to HDMI does this work with a ST
Replies: 47
Views: 12449

Re: RGB to HDMI does this work with a ST

Hahaha. So basically the VGA to HDMI converter doesnt solve anything really. Apart from that your display device may have different tolerances for HDMI than VGA input; so this works IF your display device can handle 15khz HDMI.
by wietze
Sat Jun 16, 2018 6:04 pm
Forum: Hardware
Topic: RGB to HDMI does this work with a ST
Replies: 47
Views: 12449

Re: RGB to HDMI does this work with a ST

Hello guys. Ive received the VGA to HDMI converter that Steelz described both here and demonstrates on his youtube video. The tests I have done have resulted int he following: - Given 2 STF's and 1 STE - Connected to the VGA <> HDMI converter through direct 13 pin din to VGA (switch for LOW/MED &...

Go to advanced search