Search found 188 matches

by kolla
Mon Feb 05, 2024 11:58 pm
Forum: Amiga (Minimig)
Topic: Amiga 16-bit AHI audio support
Replies: 14
Views: 4609

Re: Amiga 16-bit AHI audio support

Hohum - no MiSTer just has to have it too! :)

https://www.atari-forum.com/viewtopic.p ... e7#p458089

by kolla
Mon Jan 08, 2024 1:33 am
Forum: Amiga (Minimig)
Topic: AROS m68k on MiSTer/Minimig?
Replies: 3
Views: 1306

Re: AROS m68k on MiSTer/Minimig?

Isn’t it obvious that you should use the AROS kickstart instead of the AmigaOS 3.1 kickstart? It’s been a few years, but yes, I ran AROS/68k on MiSTer for a while.

Image

by kolla
Sat Apr 15, 2023 6:32 am
Forum: Amiga (Minimig)
Topic: AmigaVision/MegaAGS 2023.04.05 Released!
Replies: 134
Views: 33413

Re: AmigaVision/MegaAGS 2023.04.05 Released!

3.2 kickstarts (and 3.1.4, and even old CBM 3.1 for A4000T) come without workbench.library and icon.library, due to lack of space in the 512kB ROM. Instead the kickstart will look for those on any attached filesystem (old 3.1 and 3.1.4 kickstarts come with “stub” versions that do it, 3.2 uses the System-Startup component that generally scans file s...
by kolla
Sat Mar 11, 2023 10:07 pm
Forum: Amiga (Minimig)
Topic: Amiga Vision (Formally MegaAGS?)
Replies: 26
Views: 4434

Re: Amiga Vision (Formally MegaAGS?)

So… will AmigaVision include Commodore AmigaVision? :)

by kolla
Fri Jan 27, 2023 9:42 pm
Forum: Amiga (Minimig)
Topic: Any Way to Limit 68020 Speed?
Replies: 66
Views: 7383

Re: Any Way to Limit 68020 Speed?

It’s not really 68EC020 anymore when it handles hundreds of MB with RAM. 32 bit processor = 4gb of memory... So, hundred of MB? Easy... Not with a 68EC020 that only has 24 bit address bus, it can only address 16MB. Or in case of Amiga, just 8MB due to signed address space, and pointers by design only using posivtive addresses)… and in case of real...
by kolla
Sat Jan 21, 2023 12:38 am
Forum: Amiga (Minimig)
Topic: Any Way to Limit 68020 Speed?
Replies: 66
Views: 7383

Re: Any Way to Limit 68020 Speed?

It’s not really 68EC020 anymore when it handles hundreds of MB with RAM.

by kolla
Sat Jan 07, 2023 2:52 am
Forum: Amiga (Minimig)
Topic: Minimig AGA Issue
Replies: 26
Views: 2778

Re: Minimig AGA Issue

jca wrote: Fri Jan 06, 2023 10:01 pm

You need a Kickstart rom (BIOS).

This really makes me cringe - only x86 PCs have (had) BIOS.

by kolla
Sat Nov 05, 2022 4:22 pm
Forum: Amiga (Minimig)
Topic: Roadshow TCP/IP Stack on Minimig
Replies: 23
Views: 14718

Re: Roadshow TCP/IP Stack on Minimig

And have you enabled PPP in the Minimig core settings?
by kolla
Wed Sep 14, 2022 2:32 pm
Forum: Linux
Topic: Building the Linux Kernel
Replies: 2
Views: 820

Re: Building the Linux Kernel

Thanks a bunch, and for the link - I didn’t expect it to be in that repo, hehe :)
by kolla
Wed Sep 14, 2022 1:35 pm
Forum: Linux
Topic: Building the Linux Kernel
Replies: 2
Views: 820

Building the Linux Kernel

I finally got around to upgrade my MiSTer from old 4.19 to latest with 5.15.1, and everything works as intended. Once upon a time I made a docerfile for building the 4.19 kernel, so I could build the kernel with the features I need, this is of course way outdated now, but I haven't really found "the recipy" for how to the current kernel i...
by kolla
Sat Sep 10, 2022 4:56 am
Forum: General Discussions
Topic: Next Generation FPGA Hardware's Potential for Existing MiSTer Cores?
Replies: 27
Views: 5954

Re: Next Generation FPGA Hardware's Potential for Existing MiSTer Cores?

Stuff I sort of miss… :)

- 68882 for TG68 cores
- 56k DSP
- Minimig RTA (AHI)
- virtual ethernet connection in the core to the Linux side, not just serial.
- codec for mpeg-1, mp3, mpeg-2/h262, mpeg-4/h264 etc (MHI, mpeg.library mm)
- crypto/TLS accellerator (speed up AmiSSL)
by kolla
Sat Aug 20, 2022 7:20 pm
Forum: Amiga (Minimig)
Topic: Vampire V4 core for MiSTer Real?
Replies: 30
Views: 5971

Re: Vampire V4 core for MiSTer Real?

Gunnar is not the one calling the V4 a Vampire, the word "vampire" was rarely, if ever, used in any official advertising.

http://www.apollo-computer.com/v4standalone.php

V is not for “Vampire”, it is more “version”.
by kolla
Mon Aug 15, 2022 7:13 am
Forum: Amiga (Minimig)
Topic: Vampire V4 core for MiSTer Real?
Replies: 30
Views: 5971

Re: Vampire V4 core for MiSTer Real?

Another thing that Gunnar offered in 2017 (I think) was that any manufacturer could license the AC68080 core for free, but it would be limited to slow 68060 speeds until user/vendor paid for a “proper” license. Stangely, apparently noone was interested in this offer.
by kolla
Mon Aug 15, 2022 4:41 am
Forum: Amiga (Minimig)
Topic: Vampire V4 core for MiSTer Real?
Replies: 30
Views: 5971

Re: Vampire V4 core for MiSTer Real?

Well, Gunnar has always denied that blitter is done in “software”. But that just illustrates the main problem with apollo core(s) - unlike “real” Amiga architecture which always was quite open and information available, apollo core is rather the exact opposite. Btw, there never is any “Vampire V4” - Vampire is Majsta’s trademark, only his cards are...
by kolla
Sun Aug 14, 2022 8:24 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

Yes, keep as much as possible “close" to the CPU and fast ram, especially I/O. Ideally, when RTG is used, the FPGA should have almost no use :)
by kolla
Thu May 19, 2022 6:13 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

Personally, I've been using my old minimig v1.1 quite a lot lately, just wish there was a way to attach 8MB of fastram to that 68SEC000... (in my mind, a thin pcb holding the ram, with a square opening for the 68sec000, and solder points along the inner edge of the opening) My 1.1 has stacked RAM chips for 4MB. I bought it that way, but I know 4mb...
by kolla
Wed Apr 27, 2022 12:32 am
Forum: Amiga (Minimig)
Topic: Amiga 68030/40?
Replies: 70
Views: 12828

Re: Amiga 68030/40?

In context of Amiga, FPGA is great for implementing the chipset, and awesome for software that depend on the native Amiga chips. And that’s it. Once you leave the chipset behind and fully go P96 and (to a degree) AHI, software emulation is just better. Yes, with software emulation, “everything” happens sequential and not in parallel, but that is al...
by kolla
Sun Apr 17, 2022 6:45 pm
Forum: Amiga (Minimig)
Topic: Pipeline Minigame in Oil Imperium - unable to control mouse
Replies: 17
Views: 2750

Re: Pipeline Minigame in Oil Imperium - unable to control mouse

What is a “frame” in this context? Amiga displays are written line by line directly to screen, and what’s to be written to a line may change even after the first lines have already been written. Of course, with emulation, writing lines directly to hardware may not be an option and you may have to finish writing a whole screen before it can be sent ...
by kolla
Sun Apr 03, 2022 3:11 am
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

Meanwhile, in Canada, orginal Minimig had a bit of a revival and evolved into a 1.3 and even a 1.8 variant with DIP68 socket that can take real 68000 chips, as well as fun stuff like PiStorm and Buffee (which is what it was made for). I don't know if they have done anything to the FPGA cores though... https://www.minimig.ca Personally, I've been us...
by kolla
Sun Mar 27, 2022 8:11 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

AGA was first implemented on the MiST, before the MiSTer came along. And yes, larger FPGA.
by kolla
Fri Mar 25, 2022 6:52 pm
Forum: Amiga (Minimig)
Topic: Amiga 68030/40?
Replies: 70
Views: 12828

Re: Amiga 68030/40?

Caldor wrote: Fri Mar 25, 2022 10:01 am the Vampire cards does not have an ARM component, I am not sure it will ever be easy to swap out.
No need for ARM, there’s the FPGA and it can run another 68k core for the Minimig firmware, take care of I/O, menus etc. This is how it works on the TC64 already :)
by kolla
Fri Mar 25, 2022 2:35 am
Forum: Amiga (Minimig)
Topic: Amiga 68030/40?
Replies: 70
Views: 12828

Re: Amiga 68030/40?

I have two Vampire cards that haven’t received significant updates for years, and compatibility issues are plenty. If I could easily just swap out 68080 and "SAGA" on those with tg68 and Minimig, I’d use them a lot more.
by kolla
Tue Mar 22, 2022 4:36 pm
Forum: Amiga (Minimig)
Topic: FPU for the MiSTer Minimig core
Replies: 8
Views: 2304

Re: FPU for the MiSTer Minimig core

TG68 doesn’t support FPU, so software emulation aka FEMU it is (and FEMU already works). You first need a way to execute native ARM code from the Amiga side, and then replace the math lib stuff in FEMU with ARM code. And how the RAM access would be taken care of, I don’t know.
by kolla
Thu Feb 24, 2022 6:21 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

Right, but if the goal is RTG, RTA etc. the question is perhaps whether using the FPGA is worth the hassle.
by kolla
Mon Feb 21, 2022 10:24 pm
Forum: Amiga (Minimig)
Topic: A New Amiga Game Collection
Replies: 30
Views: 21194

Re: A New Amiga Game Collection

It’s typically non-RDB images that cause trouble, especially if it isn’t plain old FFS.
by kolla
Sun Feb 13, 2022 11:00 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

Heh, my gentoo disk images are on the fat file system and loopback mounted into the MiSTer Linux filesystem.
by kolla
Sat Feb 12, 2022 12:18 pm
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

You can run any 32bit pi linux distro you want inside a chroot, and leave original MiSTer distro as it is.
by kolla
Thu Feb 03, 2022 4:23 am
Forum: Amiga (Minimig)
Topic: TinyLauncher for MiSTer (and fullscreen gaming).
Replies: 29
Views: 31058

Re: TinyLauncher for MiSTer (and fullscreen gaming).

I have worked for years on a non amiga file system for developping (even my 3.1 Amiga OS is not installed on an Amiga file system) The potential problem is not "non amiga file system" as such, nor is it ExtFat... the potential problem is "what does a game loaded with WHDLoad do with the MiSTerFileSystem that is loaded in RAM" -...
by kolla
Mon Jan 31, 2022 11:20 am
Forum: Amiga (Minimig)
Topic: Lets actually try Hybrid Emulation
Replies: 716
Views: 281517

Re: Lets actually try Hybrid Emulation

The minimig board above is essentially an original Minimig with a socket for 68000 instead of the 68SEC000 used on minimig. It also only supports OCS/ECS and no AGA. Its primary function is to be a testbed for the Buffee, but it has successfully also been used with PiStorm. PiStorm either runs Musashi, which has also been tested on MiSTer and is di...