Search found 961 matches

by mfro
Mon Jul 26, 2021 9:17 am
Forum: Hatari
Topic: Help for a complete novice
Replies: 9
Views: 454

Re: Help for a complete novice

it would probably help if you would link the eBay offer - people would at least have a remote idea on what you have?
by mfro
Wed Jul 21, 2021 5:58 am
Forum: MiST
Topic: New MiST clone: MiSS FPGA
Replies: 41
Views: 3127

Re: New MiST clone: MiSS FPGA

About the DDR3 in the board: has the FPGA got a hard memory controller? Or have to write one? No hard memory controller, unfortunately. (There is a Xilinx-oriented DDR3 controller on opencores that might be useful for reference.) One of the demo projects interfaces NIOS 2 to the DDR3 and uses about...
by mfro
Mon Jul 19, 2021 12:57 pm
Forum: Coding
Topic: ATARIST encoding for linux iconv
Replies: 4
Views: 221

Re: ATARIST encoding for linux iconv

As an additional hint that might not be obvious to everybody (that I, personally, find extremly useful, however): when cross compiling, this can be used to convert strings during compilation. m68k-atari-mint-gcc has the option "-fexec-charset" that allows you to translate compiled string constants w...
by mfro
Wed Jul 07, 2021 11:22 am
Forum: 680x0
Topic: Floppy boot sector Falcon
Replies: 28
Views: 1266

Re: Floppy boot sector Falcon

As long as the clock can be changed, being disabled isn't required. Yes, but it's still strange. Maybe for some reason i haven't found yet, but the "soft" routines are all there, so i don't understand why you should not be able to turn blitter usage off. Are they? Are you sure? I think I remember D...
by mfro
Tue Jul 06, 2021 7:46 am
Forum: 680x0
Topic: Programming VGA resolutions (Atari TT)
Replies: 13
Views: 720

Re: Programming VGA resolutions (Atari TT)

For the sake of completeness: the only thing you don't have (but should, if you want portable code) is the byte/bit order on screen which can be quite arbitrary/exotic depending on the type of graphics card and its origin. Some programs go through the pain of blitting a known colour pattern using VD...
by mfro
Sun Jul 04, 2021 4:17 pm
Forum: 680x0
Topic: Programming VGA resolutions (Atari TT)
Replies: 13
Views: 720

Re: Programming VGA resolutions (Atari TT)

How can I create graphics in 1024x768 in 256 colours? I can play in assembler with 4 bit planes in low ST resolution and 16 colours to create a game but how could I use the possibilities the Nova and Mach64 can offer? If you ignore low-level accelerated graphics (which is probably not possible anyw...
by mfro
Fri Jul 02, 2021 11:13 am
Forum: C / PASCAL etc.
Topic: VBCC cross compiler
Replies: 11
Views: 718

Re: VBCC cross compiler

The problem with v_opnwk() is obvious. You never should call that from an application, use v_opn v wk/v_clsvwk() instead. Only the AES should call v_opnwk() when it starts. Correct. Just to make that a little more precise: of course it's perfectly valid to call v_opnwk() from an application. It's j...
by mfro
Wed Jun 09, 2021 9:04 am
Forum: Professionals
Topic: COMBEL CPU CLOCK 16/8 (Falcon)
Replies: 22
Views: 1223

Re: COMBEL CPU CLOCK 16/8 (Falcon)

What I need is to not have TOS use the Blitter at boot. From what I understand, it's how the Atari logo is drawn on the screen. If TOS could be patched there, can get over the boot hump. ... Not sure if that would be enough - if you have an auto folder program before NVDI generating console output,...
by mfro
Wed Jun 09, 2021 7:39 am
Forum: Professionals
Topic: COMBEL CPU CLOCK 16/8 (Falcon)
Replies: 22
Views: 1223

Re: COMBEL CPU CLOCK 16/8 (Falcon)

... Is it that EmuTOS does not use the Blitter during boot as TOS does to display the Atari logo? Or, does EmuTos "disabled" in some way? I don't know how the Blitter inside the COMBEL works. If always active until used, or can be disabled?... There is no way to somehow "disable" the blitter. It's ...
by mfro
Tue Jun 08, 2021 8:44 am
Forum: Hardware
Topic: Beginning of very long journey
Replies: 300
Views: 100111

Re: Beginning of very long journey

From a technical point of view, this really makes me excited. Very close to what the original Falcon should have been :thumbs: . Don't want to badmouth your project, but from an economical standpoint, I fear it will become a disaster. Considering the market prices of Falcons, it really needs huge de...
by mfro
Mon Jun 07, 2021 8:42 am
Forum: Hardware
Topic: IDE HD transfer
Replies: 22
Views: 1378

Re: IDE HD transfer

I have seen very similar errors with USB devices that didn't get sufficient power from the host.

How do you power your drive?
by mfro
Tue May 04, 2021 5:15 pm
Forum: C / PASCAL etc.
Topic: TeraDesk ARGV/Pexec
Replies: 25
Views: 1082

Re: TeraDesk ARGV/Pexec

What startup code do you use in VISION? Does it handle ARGV itself? If not, then it is likely that is also does not remove the ARGV environment variable, and then what happens is that the ARGV that is passed from teradesk to VISION is passed along to wget. That shouldn't happen even if ARGV is stil...
by mfro
Thu Apr 22, 2021 5:39 pm
Forum: Website Discussions
Topic: How to search 3 letter, ex, DSP, FPU
Replies: 5
Views: 370

Re: How to search 3 letter, ex, DSP, FPU

another bugbear with the forum search is that it keeps telling you to come back in x secs later.... and it just tells you wait some more seconds after the x secs expires. :shrug: That actually makes sense as it's there to make DOS attacks more difficult. As soon as the CPU load of the server exceed...
by mfro
Tue Apr 20, 2021 4:41 pm
Forum: Hardware
Topic: 3 buttons?
Replies: 12
Views: 864

Re: 3 buttons?

Atari System V Unix came with a three button mouse that worked fine. You wouldn't have such a mouse, would you? It would certainly be interesting to see it, particularly the inside. (Sidenote: The ASV promo brochure just shows it with a plain 2-button mouse: http://www.atarimuseum.de/pics/scans/Sys...
by mfro
Mon Apr 19, 2021 5:41 am
Forum: Hardware
Topic: 3 buttons?
Replies: 12
Views: 864

Re: 3 buttons?

joska wrote: Sun Apr 18, 2021 8:18 pm According to the Atari TT hardware reference manual it should support 3-button mice.

tt-3-button-mouse.png

However, this manual does not say anything about *how*.
Atari System V Unix came with a three button mouse that worked fine.
by mfro
Wed Mar 31, 2021 11:39 am
Forum: Hardware
Topic: TT upgrade to lan & USB
Replies: 23
Views: 1214

Re: TT upgrade to lan & USB

Oh well it doesn't matter. I knew I'd just get negative responses. By the way there are forum plugins that will automatically resize images for people... They cost zero Mr mfro. Actually, this takes us completely off-topic, but as you directly :megaphone: me: yes, there are. Completely unsupported ...
by mfro
Wed Mar 31, 2021 6:10 am
Forum: Hardware
Topic: TT upgrade to lan & USB
Replies: 23
Views: 1214

Re: TT upgrade to lan & USB

@Mark_G @Ektus thanks for suggestions but it's missing the point. Internet traffic is mainly mobile phones these days and as such can't easily use a resizing tool or website. As this site moves forward it needs to change with the times and accept people need more than 500kb. For reasons I outlined ...
by mfro
Mon Mar 29, 2021 5:09 pm
Forum: Chat forum [ENG]
Topic: Amiga emulator on the Atari
Replies: 47
Views: 2483

Re: Amiga emulator on the Atari

MegaSTEarian wrote: Mon Mar 29, 2021 4:57 pm But can the Atari computers run the kernel? Modern linux kernels are larger than the average TT/Falcon memory I believe.
Read here about Aros Vision, the m68k native Aros:

https://en.wikipedia.org/wiki/AROS_Rese ... ing_System
by mfro
Mon Mar 29, 2021 2:44 pm
Forum: Chat forum [ENG]
Topic: Amiga emulator on the Atari
Replies: 47
Views: 2483

Re: Amiga emulator on the Atari

Being able to emulate something often means you’ll need ten times the resources of the thing you’d like to emulate. It’s not about being equally or slightly more powerful. Also there’s a common misconception about ”not having to emulate the CPU, since it’s the same”, which is - as said - a misconce...
by mfro
Sun Mar 28, 2021 7:00 pm
Forum: Coding
Topic: G_STRING and reserved space
Replies: 3
Views: 297

Re: G_STRING and reserved space

For a G_STRING object, ob_spec is exactly that: a (C) string (char pointer). Nothing else. I.e., there is no extra space you could write to without doing any damage. If you want to modify the string, it's probably safer to consider the resource string a constant and instead modify the ob_spec pointe...
by mfro
Sat Mar 27, 2021 9:45 am
Forum: C / PASCAL etc.
Topic: Willing to look into it??
Replies: 11
Views: 941

Re: Willing to look into it??

frank.lukas wrote: Sat Mar 27, 2021 7:45 am I run it with 640x400 mono or over a nova GK with 256 colors. All fine with a Atari TT ...
But you also had lots of problems with it in the beginning as well , remember?

There is a patched version of the program near the end of that linked thread.
by mfro
Sun Mar 14, 2021 3:48 pm
Forum: FireBee
Topic: ColdFire-native fVDI
Replies: 21
Views: 2456

Re: ColdFire-native fVDI

Technically, the PCI bus is similarily bandwidth-limited than the FlexBus. Behind the PCI bus, there is an (outdated, closed and merely undocumented) PCI card that you can only access if you signed an NDA with ATI/AMD at times (AMD even claims they do not have any programmer's documentation for the ...
by mfro
Sun Mar 14, 2021 2:53 pm
Forum: FireBee
Topic: ColdFire-native fVDI
Replies: 21
Views: 2456

Re: ColdFire-native fVDI

Note that the driver above is primarily for the FreeScale evaluation boards. FireBees already have a built-in Radeon driver.

What exactly do you expect from a PCI card/Backplane you can't do with your FireBee right now?
by mfro
Sun Mar 14, 2021 9:55 am
Forum: 680x0
Topic: More strange observations in game code
Replies: 13
Views: 1283

Re: More strange observations in game code

That area behind video memory was known to be unused and it was common practice for (mainly Basic-) programmers to upload machine code there where it was relatively safe from the Basic interpreter *and* the OS. One explanation could be it was just used as a "last resort" escape if the code ran into ...

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