Search found 114 matches

by tin
Wed Feb 17, 2021 7:28 am
Forum: 680x0
Topic: Devpac debugging tutorial
Replies: 25
Views: 868

Re: Devpac debugging tutorial

Since others already suggested other debugging solutions, I‘ll just take the opportunity to plug the excellent Bugaboo and ggn‘s excellent article about it: http://beyondbrown.d-bug.me/post/bugaboo/ Bugaboo was and still is my default „no thrills and highly automatable“ start wrapper while developin...
by tin
Tue Feb 16, 2021 1:30 pm
Forum: News & Announcements
Topic: Photos of original ATARI ST prototype boards from 1984
Replies: 10
Views: 750

Re: Photos of original ATARI ST prototype boards from 1984es

Some information about those breadboard photos that might be of interest: The pictures are dated 2002 and the post itself is from that timeframe, too. The post was discovered and shared quite some years ago - unfortunately I can’t recall by whom. And please note it‘s highly unlikely Leonard Tramiel ...
by tin
Sat Oct 24, 2020 7:11 pm
Forum: Applications
Topic: Crack Art Manual
Replies: 5
Views: 675

Re: Crack Art Manual

Nice one, thanks :)
by tin
Mon Sep 28, 2020 6:37 pm
Forum: Hardware
Topic: ACSI 2 SD
Replies: 9
Views: 1356

Re: ACSI 2 SD

I got one of those eltradec ACSI2SD - this one https://www.eltradec.eu/index.php/en/w/7914 to be precise. It is very easy to solder (just one or two smd resistors). Be aware that some sturdy, thick wire is needed (not in the kit) to attach the ACSI connector (the only thing to do that‘s a bit fiddly...
by tin
Fri Aug 28, 2020 4:21 pm
Forum: Professionals
Topic: RetroTINK 2X-SCART with Atari STE
Replies: 22
Views: 3100

Re: RetroTINK 2X-SCART with Atari STE

Retrogaming cables, £47. They are not the SCART variant, but the dedicated cable variant called Rad2x but it is the same hardware. I was going to just make an adapter cable for the Megadrive one, or whip off the end of the cable and put in a 13-pin DIN https://www.retrogamingcables.co.uk/RAD2X-CABL...
by tin
Thu Aug 27, 2020 5:25 pm
Forum: Professionals
Topic: RetroTINK 2X-SCART with Atari STE
Replies: 22
Views: 3100

Re: RetroTINK 2X-SCART with Atari STE

alexh wrote: Thu Aug 27, 2020 4:12 pm£50
That‘d be a steal for a R2XS indeed - who‘s your retailer?
by tin
Tue Aug 25, 2020 7:28 pm
Forum: Professionals
Topic: RetroTINK 2X-SCART with Atari STE
Replies: 22
Views: 3100

Re: RetroTINK 2X-SCART with Atari STE

Thanks for the detailled explanation. Do you know where we can buy a corrected SCART cable ? Unfortunately not, bought my last scart cable ages ago. And I‘ve added resistors or pots to my vga/scart cables myself if needed. Unfortunately retailers often do not seem to add information on what exactly...
by tin
Tue Aug 25, 2020 8:21 am
Forum: Professionals
Topic: RetroTINK 2X-SCART with Atari STE
Replies: 22
Views: 3100

Re: RetroTINK 2X-SCART with Atari STE

Since I’m using Retrotink 2X Scart and OSSC and had 1 or 2 stabs on getting a somewhat calibrated ST video output I might as well add my 2c here. In direct comparision -and for my usage profile, which is mostly capturing- I would opt for the OSSC. 95$ (R2XS) vs 135€ [OSSC) is not that much of a diff...
by tin
Sun Aug 09, 2020 1:17 pm
Forum: Coding
Topic: Atari STE Blitter objects demo (new record)
Replies: 88
Views: 11038

Re: Atari STE Blitter objects demo (new record)

Nice :) Works just fine on a Mega ST.
by tin
Sun Jun 21, 2020 3:33 pm
Forum: Wiki Discussions
Topic: Wiki website problem
Replies: 10
Views: 3028

Re: Wiki website problem

It‘d probably a good idea to disable the account creation that currently allows anyone to create accounts with full edit rights and w/o email-check etc. Iirc this was disabled when I looked into the wiki last year (aka updated&fixed it), only forum accounts could be converted into Wiki accounts. The...
by tin
Thu Aug 01, 2019 7:57 am
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

Greenious wrote:Found it. This should 'unlock' most, if not all, of his sources.
Wow, thanks alot!
by tin
Wed Jul 31, 2019 9:17 pm
Forum: 680x0
Topic: Multiple TimerB handlers
Replies: 9
Views: 5505

Re: Multiple TimerB handlers

Hint: if your handler start addresses are guaranteed to not cross a 64k boundary (and you can align the code buffer to a 64k page), there‘s no need to use a move.l to change the timer, just use move.w and 122.w.
_Then_ it‘s super fast :)
by tin
Wed Jul 31, 2019 9:06 pm
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

Did you search the whole archive? The sources are not always in correct folder structure so there is a chance that some includes are scattered all over the place. I remember compiling something else from him and had to find the files this way. Sure, searched ofc that and also ggns whole repo. Did n...
by tin
Wed Jul 31, 2019 5:16 pm
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

but his sources are public for ages already. If I'm not mistaken, these two: https://github.com/ggnkua/Atari_ST_Sources/tree/master/ASM/Various/Ulf%20Ronald%20Andersson/LACE_EMU and https://github.com/ggnkua/Atari_ST_Sources/tree/master/ASM/Various/Ulf%20Ronald%20Andersson/LACE_TT are what the guys...
by tin
Wed Jul 31, 2019 12:43 am
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

Atarieterno wrote:Will there be any application that activates this resolution? Is it easily usable?
Like this? http://www.atari-forum.com/viewtopic.ph ... 50#p349874
by tin
Sun Sep 02, 2018 7:36 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

Here's the previous IMP set in 8ns and with dl3, dl6 and two different lowrez "shiftedleft" cases added. Thanks once more again. But seems to me again that some of the traces might have the wrong resolution. This looks like low rez, and not med rez: C070713-002IMP_med_50hz_dl3.vcd Thanks for spotti...
by tin
Mon Aug 13, 2018 7:03 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

Here's the previous IMP set in 8ns and with dl3, dl6 and two different lowrez "shiftedleft" cases added. http://absencehq.de/atari/shifter_tests_v2.zip Also: rechecked that the banded case is a "true" banded case, not just a plane shift - my testbed had all planes fully set and only bg color was set...
by tin
Mon Aug 13, 2018 4:14 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

Regarding „banded“ and „shifted“ ... I suspected something like that. But the trace bandwidth (50 MHz) is a bit too low and then it's difficult to analyze unless you know beforehand what you are looking for. I'll do proper 8ns ones later, these effects are pretty easy to recreate on this IMP set, i...
by tin
Mon Aug 13, 2018 7:41 am
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

You‘re welcome :) I‘ll add those traces to the big packgage including PNGs asap. Regarding „banded“ and „shifted“: „banded“ shows every 2nd column (16 pixel block)one column background color although it should show gfx data. In this case it might be a plane effect, have to check palette and plane da...
by tin
Sun Aug 12, 2018 2:51 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

But something is odd with this new trace on low rez (any chance you mixed up and it is actually on med rez?). Can you make one or two more. Only with the full IMP chipset, only on LOW rez. If you can with two different powerup cycles. And please make sure that the screen is solid. That is, the star...
by tin
Mon Aug 06, 2018 10:17 am
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

For the record: this mode (1280x200x2@50Hz) works fine with an NEC1970NXp, centurion/ubeswitch tested. This even worked in the NewRez Desktop driver, but with the mono font, so it looked more like 1280x100, aka totally unsuable :/ Wait, what? Did you really use an ubeswitch with auto detection of m...
by tin
Sat Aug 04, 2018 3:20 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

Thanks for the video tin. That's really interesting (and a bit of a shame). You're welcome :) Nothing to worry about - as you said, your screen worked on most STs people used at the time it was released. Thanks alot for your fabulous work, you made many of us scratch our heads back then. Unfortunat...
by tin
Sat Aug 04, 2018 3:12 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

Potentially silly question, but what type of screen are you recording from? CRT or LCD? I can only speak for the video recordings: there was no screen involved, it's a (more or less) direct RGB capture. The capture card proved quite stable in the past (which will ofc change, now that I mentioned it...
by tin
Sat Aug 04, 2018 3:07 pm
Forum: Coding
Topic: Different SHIFTER versions
Replies: 65
Views: 19208

Re: Different SHIFTER versions

I finally came around to fix my IMP board (I fried the Vsync diode somehow). So here's revision 2 of the LA capture package: http://absencehq.de/atari/shiftercaptures_r2_c025914-38_38A_c070713-002.zip Changes: -added traces for C070713-002 8833 low/mid 50Hz using a full IMP chipset board -fixed typo...
by tin
Sat Aug 04, 2018 1:15 pm
Forum: Hardware
Topic: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!
Replies: 95
Views: 30907

Re: The SECRET VIDEO MODE in an ST: 400 lines in COLOR (and with 72 Hz)!

... and: 1280 x 200 (mono, untested because I don't have a suitable monitor), For the record: this mode (1280x200x2@50Hz) works fine with an NEC1970NXp, centurion/ubeswitch tested. This even worked in the NewRez Desktop driver, but with the mono font, so it looked more like 1280x100, aka totally un...

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