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by mikro
Sat Aug 17, 2019 7:03 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

In the Falcon, the DMA chip also takes care of backwards-compatible sound DMA. It does in fact use bus arbitration and can thus block the CPU from accessing the bus. Christian, yet once again you have shown how greatly you understand hardware schematics, even for devices which you have never used. ...
by mikro
Sat Aug 17, 2019 4:43 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

czietz: since you are far more versed in hardware in general than I am, I have no reason to doubt your explanation. I sounds very plausible. So Atari not only made the Videl with many bugs but they also botched the nice SDMA concept from its predecessor, great. evil: the incredible irony is that I h...
by mikro
Sat Aug 17, 2019 4:12 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

ijor, now I wish you had time to study Falcon ICs in a similar depth as you did with ST ICs. ;-) But that at least confirms something, i.e. that one shouldn't expect any additional work on STE when samples are played. Now the funny thing will be to investigate what is happening on Falcon. Isn't codi...
by mikro
Sat Aug 17, 2019 3:57 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

Oh-oh. In that case Falcon must work a bit differently although I can't imagine how or why.
by mikro
Sat Aug 17, 2019 3:29 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

Arne: you have understood it correctly. I'm pretty sure the SDMA does have some kind of buffer, yes. However it's entirely possible that the behaviour / hardware implementation has changed between STE and Falcon - because yes, I'm seeing this artefacts on Falcon and if this is the case, i.e. that it...
by mikro
Sat Aug 17, 2019 3:09 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Re: Timer B + DMA at once

Ah, now I see I should have been more specific - I'm talking purely about DMA playback, no disk access at all.

So you're saying that as soon as you load your sample buffer during VBL, you don't have to care about anything else, you just let it play and do whatever you want in Timer B handlers?
by mikro
Sat Aug 17, 2019 2:26 pm
Forum: Coding
Topic: Timer B + DMA at once
Replies: 16
Views: 240

Timer B + DMA at once

I'm posting this out of a total despair. :) My idea about DMA (sample playback for instance) has been the following: it does its job independently from the CPU, if DMA is active, CPU has to wait. That seems pretty straightforward. However now I have Timer B interrupts all over the place, how does th...
by mikro
Sat Aug 17, 2019 11:07 am
Forum: News & Announcements
Topic: Good bye
Replies: 51
Views: 1986

Re: Good bye

Let's all be reasonable: If you remove the prod from your site, that's a good start. Then from there, the others can do it. One step at a time. Exactly. As a part of that effort, you can give him back his account and forget about this whole petty incident. If someone adds his production in the futu...
by mikro
Sat Aug 17, 2019 9:28 am
Forum: News & Announcements
Topic: Good bye
Replies: 51
Views: 1986

Re: Good bye

what he wants is to get the entries gone from the demoscene databases, which seems totally logical, fair and reasonable. Does it really? I mean, who are we to dictate someone else what he can or can't put on his website? Sure, if it's a warez, pornography, whatever illegal, we have laws for that. B...
by mikro
Thu Aug 15, 2019 6:52 pm
Forum: News & Announcements
Topic: Good bye
Replies: 51
Views: 1986

Re: Good bye

"As I said to you in other thread, as an individual you have very few rights on the Internet, and taking down your freeware apps certainly isn't one of them." Maybe not, but a minimum of consideration and understanding would not hurt, would it? Just to be clear: I'm not defending manners ...
by mikro
Thu Aug 15, 2019 8:51 am
Forum: Games
Topic: Scumvm
Replies: 101
Views: 75950

Re: Scumvm

Isn't possible the crashes are caused by small stack?
by mikro
Thu Aug 15, 2019 8:46 am
Forum: News & Announcements
Topic: Good bye
Replies: 51
Views: 1986

Re: Good bye

The demozoo people surely aren't going to be touched by this move and we, users, will miss your nice apps. As I said to you in other thread, as an individual you have very few rights on the Internet, and taking down your freeware apps certainly isn't one of them. When somebody googles your name now ...
by mikro
Tue Aug 13, 2019 5:21 pm
Forum: Games
Topic: Scumvm
Replies: 101
Views: 75950

Re: Scumvm

Thorsten: I don't recall anything odd during compilation, just: ./configure --host=m68k-atari-mint --with-sdl-prefix=/home/mikro/gnu-tools/m68000/m68k-atari-mint/bin --enable-release --disable-hq-scalers --disable-highres --opengl-mode=none --enable-verbose-build --disable-16bit and a few disabled f...
by mikro
Tue Aug 13, 2019 8:02 am
Forum: Games
Topic: Scumvm
Replies: 101
Views: 75950

Re: Scumvm

No no, my fork shouldn't be used as the base for anything. It's just an experimental fork I did a few months ago to verify that ST MIDI is compilable and working. The links wietze is referring to pointed to my custom builds long before this code appeared on github. So what wietze is actually asking ...
by mikro
Mon Aug 12, 2019 4:27 pm
Forum: News & Announcements
Topic: Interview with me (Daniel Hedberg)
Replies: 10
Views: 610

Re: Interview with me (Daniel Hedberg)

Love the TOS Error #35 story ;)
by mikro
Mon Aug 12, 2019 4:14 pm
Forum: Demos - Requests
Topic: Demozoo removals
Replies: 11
Views: 570

Re: Demozoo removals

Rajah, I understand your frustration (it applies to many of my software releases as well, not only on Demozoo but for instance also for Marcer's DVD) but once you have released something, I don't think you have right to ask other people how to treat your productions. You can ask the admins to update...
by mikro
Mon Aug 12, 2019 4:10 pm
Forum: Applications
Topic: Load ACC
Replies: 3
Views: 157

Re: Load ACC

IIRC, any multitasking AES allows it but if you prefer TOS 2.06 - the easiest way is to rename it to .APP :) Most of the times it would work.
by mikro
Mon Aug 12, 2019 6:04 am
Forum: Applications
Topic: Synergy / Barrier for Atari? Mint?
Replies: 14
Views: 473

Re: Synergy / Barrier for Atari? Mint?

ThorstenOtto wrote:apt-get install an X-server on Mint? Where do you get the packages? ;)

apt-get install on CosmosEx's Raspbian - CE 'bridge' is what AdamK's has suggested.
by mikro
Mon Aug 12, 2019 6:02 am
Forum: Applications
Topic: VanillaMiNT has finally been updated
Replies: 125
Views: 35259

Re: VanillaMiNT has finally been updated

Hard to say - it should work (very helpful, I know ;)). It also depends on what SDL version it is linked against, for instance I had to fix a few things when playing with the atari800 emulator. I can give it a go tonight but I'd say better to ask someone who is using it regularly.
by mikro
Sun Aug 11, 2019 7:42 pm
Forum: Applications
Topic: Synergy / Barrier for Atari? Mint?
Replies: 14
Views: 473

Re: Synergy / Barrier for Atari? Mint?

Even if that would be the case, it's just a matter of apt-get install. Bloated, sure, but working solution. :)
by mikro
Sun Aug 11, 2019 7:39 pm
Forum: Applications
Topic: VanillaMiNT has finally been updated
Replies: 125
Views: 35259

Re: VanillaMiNT has finally been updated

wietze: seems like a memory protection issue. Try either to disable that (hold shift during mint.prg start) or change scummvm's binary flags to "super accessible":

flags -S ./scummvm.prg (for instance)
by mikro
Sun Aug 11, 2019 1:53 pm
Forum: Applications
Topic: Synergy / Barrier for Atari? Mint?
Replies: 14
Views: 473

Re: Synergy / Barrier for Atari? Mint?

Actually AdamK's suggestion is pretty cool. No need to port anything, just one more 'if' in the USB <-> IKBD emulation layer.

I personally don't need such a solution but right now it's just a matter to convince a linux developer to take a look, no FreeMiNT/Atari involved.
by mikro
Sun Aug 11, 2019 7:07 am
Forum: Applications
Topic: Synergy / Barrier for Atari? Mint?
Replies: 14
Views: 473

Re: Synergy / Barrier for Atari? Mint?

I don't think we have a port for Atari mint from what I can see? If not, is it possible for someone with compiling skills to make one for us If only things were so simple, right? :-) Even assuming that all the required functionality (networking, event handling, mouse/keyboard handling) is already p...
by mikro
Sun Aug 11, 2019 6:57 am
Forum: News & Announcements
Topic: We Love Atari (Volume One)
Replies: 82
Views: 15673

Re: We Love Atari (Volume One)

Videl wrote:I have an urgent request, if you know ANYBODY with an Atari PC3 manual, I need a high-res (300dpi) scan of the cover within the next 48 hours or sooner.

Have you tried to contact AtariLegend? He has quite an Atari PC collection: https://www.youtube.com/watch?v=8eOtSfpCBs4
by mikro
Tue Aug 06, 2019 1:02 pm
Forum: Professionals
Topic: Backward III and NVDI
Replies: 14
Views: 961

Re: Backward III and NVDI

Eero: that would be an extremely inefficient setup. Backward disables the cache, sets the CPU frequency to 8 MHz etc. Slow VDI is then the least of your troubles. :) Plus, I'm not aware of many ST games which cleanly exit. Maybe the new era games like Obsession but the classics from the 80s/90s? No ...

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