Posts by Jens

Gimp (Linux) and Irfanview (Windows) are the quickest methods to shrink pictures. There might be even quicker ways with apps on smart phones.

Jens

On V2, these are standard BC850C types.

Jens

The ACA600 is still on my list - just didn't get around to assembling the new prototype yet. The goal is to have either a low-cost memory expansion and Kickstart replacement for the 68000-based machine, and also give you all the choices that A1200 users have in terms of accelerators: I'm planning to make the whole range of ACA12xx accelerators fit inside the A600 case.

Jens

Sorry, this is the only discount planned for the forseeable future. However, I'll try to work with more resellers in 2024, will try to encourage anyone to take stock and be able to ship from a local warehouse.

Jens

Quote from dddd

Do we have the very same problem for ACA500plus & ACA1221lc?

Not that I would know of, no.

Jens

Unfortunately, this is a known, currently unsolved problem.

The new Buddha Plus One IDE controller adds new features to a 27-year old design that has been extremely successful over the decades. We're proud to say that even after 38 years of Amiga history, we've introduced novel design ideas how to make installation easier, less error-prone and much friendlier in terms of preservation of the original cases. Read all about the new features and ideas on the Buddha Plus One product page.

Shipments will start in late January 2024. If you order a Buddha Plus One and an X-Surf-100 networking card during the pre-order phase, we'll give you 15,- EUR off the total(*). Unfortunately, this shop system can't do that automatically or with a voucher code. If you pay with a wire transfer, just deduct 15,- EUR from the total quoted by the shop, and if you pay with PayPal, we'll make a 15,- EUR refund on the next business day.

_{(*): In case of a partial revocation by the customer, the discount will be deducted from the refunded amount.}

The right PSU can be found and ordered here.

Jens

Quote from neocdtv

Kannst du auch ein timedemo demo1 machen?

Timedemo demo1 in NTSC 320x200 macht bei 95MHz 15,98 FPS (60,6 Sekunden). Fürs Umstellen auf 100MHz brauche ich mehr Zeit - ein Tool gibt es dafür noch nicht und ich habe heute noch einiges Andere auf dem Plan.

Bei dem Ergebnis mit dem A4000 würde ich gern nochmal vergleichen, was die anderen Einstellungen sind. Das sieht für mich so aus, als wäre das nicht AGA, sondern RTG-Grafik - vielleicht aber auch ein kleinerer Bildausschnitt. Ich ziehe immer auf volle Größe um beste Vergleichbarkeit zu haben. Ich hab' mal Dein Video angesehen: Bei 0:23 sieht man, dass Du die Screengröße auf ca. drei Viertel reduziert hast. Wenn ich das mache, bekomme ich bei 95MHz 19,27FPS. Ich habe aber nicht alles im Multitasking abgestellt - bei mir läuft immer noch ein TCP/IP Stack, und das Laufwerk klickt fröhlich vor sich hin, ergo ist Multitasking aktiv. Wenn ich die rund 5% Taktfrequenz addiere, liege ich damit gleich auf mit der BFG.

Die BFG und die TF1260 machen also spürbar mehr Performance in Sachen Speicher im Vergleich zur Warp1260. Vielleicht sollte ich mir die Werte mal genauer ansehen, damit ich nicht den langsamsten "Gegner" jage Trotzdem müsste man für eine wirkliche Vergleichbarkeit immer die Screengröße maximieren, sonst vergleicht man Äpfel mit Birnen.

Wir können zwar noch Speicherzugriff optimieren, aber das wird erst passieren, wenn die Software-API für sämtliche Features steht und wir mit dem Debugging der Peripherie außenrum beginnen können. Es nützt nichts, wenn wir jetzt das letzte Bisschen Performance angehen, aber dafür Zeit bei den Dingen verlieren, die am Ende die Karte wirklich im Alltag benutzbar machen. Optimierungen können wir immer als Flash-Update veröffentlichen, denn die Hardware ist genau wie unsere Flickerfixer gebaut: Der FPGA kann im Feld ein Update bekommen, und wir können damit andere row-open Strategien, Verteilung von Rows/columns und andere Adresskomparatoren testen. Ideen habe ich reichlich, aber das wird vom Team aktiv gebremst, immer mit dem Mantra "first make it work, then make it fast".

Jens

Thanks - let your social network know!

Jens

Interesting - thanks for sharing. I'll have to check the schematics to understand how the clock chip can stop the computer from booting.

Jens

We do prioritize shipments, and even with the internet outage that happened this week, we've done everything possible to really ship daily.

Jens

Too much staff on sick leave - a lot of work is left "not done" in the past months. I've put a note into the shop back end and will make sure that these chips are in.

Jens

Quote from Pascal

- turned off use INTERNAL IDE via ACA tool to boot from ACA disk.

That's your reason. If you tell the computer to not use the internal IDE, it's not going to use the internal IDE. It is meant for cases where nothing is connected there.

If you want to change the boot priorities, you don't do that with ACAtool, but with HDToolbox. Click on the partition in question, then on "advanced", then lower the priority to a negative value, or make it non-bootable.

Jens

I guess you're talking about Indivision ECS V2, not MK2, as the latter is an AGA product.

ECS computers have a "hard limit" of 4 colours on S-Hires screens, 16 colours on Hires screens and 32 colours on Lores screens. Indivision can't change that. It only converts to VGA, but does not add to the gfx capabilities of your Amiga.

Jens

Thanks for the feedback!

Quote from Tomasz

This adapter PCMCIA/SD working no problem with Vampire V2-1200, Warp 1260, Furia-A600.

None of these cards have memory in $60.0000, so that's expected. If you go for an ACA1234, you won't have trouble with that either - same with the ACA1240/1260.

I can give you an extended right of revocation if you want to return the card because of that. I won't be able to look into this before next year. Again, the really important stuff (=networking cards) works, as that does not occupy memory space, but only IO space, which is kept free by the ACA1211.

Jens

Using AGA NTSC 320x200 screenmode, 060 C2P routine, "timedemo demo2" gives me 985 frames in 60.3 seonds = 16.33 FPS. This is at 95MHz.

I only found CGX graphics speed demos for other cards, so I have a hard time judging it. Is that what you'd expect from this AGA screen size?

Jens

EDIT: According to this post, Warp1260 using PAL 320x256 makes 12.96 FPS, second only to the Vampire card. When I switch to PAL, it's getting slower by a few percent: 985 frames in 69.7 secons = 14.12 FPS. So roughly a frame more per second. Not a huge margin, but noticable.

Quote from Tomasz

Ihave adapter PCMCIA with SD cards,

That does not sound like a standard. What IO space is this using?

Jens

This is a known problem with certain CF cards (not the adapters - it's really the cards). We so far only tested networking cards, and the ACA1211 is definitely PCMCIA-friendly to those.

For "unfriendly" CF cards, I still have introduction of a 7MByte mode on my todo list (keeping the $60.0000 to $9f.ffff area free of memory).

Jens