MiSTer FPGA Forum

kolla

thisisamigaspeaking wrote: ↑Tue Aug 27, 2024 8:21 am
I'd like it to appear earlier in the list before Atari ST.

Rumours are that this was the exact reason for the naming in the first place, to gets ads in old computer mags listed up before those for Apple and Atari

kolla

Uhm, right, it’s the I in IP… :p

kolla

Hello, I have just one question to ask. How difficult would it be to implement FPU into miniming core? How come such feature were not implemented already? Implementing a sort of FPU wouldn’t be so hard, but implementing an feature complete 040 FPU or better yet a full featured 68882 is another story. The main problem (once functions are implemente...

kolla

Hohum - no MiSTer just has to have it too!

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

kolla

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.

kolla

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...

kolla

So… will AmigaVision include Commodore AmigaVision?

kolla

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...

kolla

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

kolla

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.

kolla

And have you enabled PPP in the Minimig core settings?

kolla

Thanks a bunch, and for the link - I didn’t expect it to be in that repo, hehe

kolla

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a docerfile for building the 4.19 kernel, so I could build the kernel with the features I need, this is of course way outdated now, but I haven't really found "the recipy" for how to the current kernel i...

kolla

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)

kolla

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”.

kolla

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.

kolla

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...

kolla

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

kolla

http://www.apollo-core.com/knowledge.php?b=1&note=5768

kolla

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...

kolla

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...

kolla

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 ...

kolla

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...

kolla

AGA was first implemented on the MiST, before the MiSTer came along. And yes, larger FPGA.

kolla

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

kolla

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.

kolla

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.

kolla

Right, but if the goal is RTG, RTA etc. the question is perhaps whether using the FPGA is worth the hassle.

kolla

It’s typically non-RDB images that cause trouble, especially if it isn’t plain old FFS.

kolla

Heh, my gentoo disk images are on the fat file system and loopback mounted into the MiSTer Linux filesystem.

MiSTer FPGA Forum

Search found 191 matches

Re: Aliasing core name (Minimig -> Amiga) & why is it still Minimig?

Re: Can the Amiga Core Be Accessed in the Home Network?

Re: Implement FPU for minimig

Re: Amiga 16-bit AHI audio support (Update: Released!)

Re: AROS m68k on MiSTer/Minimig?

Re: AmigaVision/MegaAGS 2023.04.05 Released!

Re: Amiga Vision (Formally MegaAGS?)

Re: Any Way to Limit 68020 Speed?

Re: Any Way to Limit 68020 Speed?

Re: Minimig AGA Issue

Re: Roadshow TCP/IP Stack on Minimig

Re: Building the Linux Kernel

Building the Linux Kernel

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

Re: Vampire V4 core for MiSTer Real?

Re: Vampire V4 core for MiSTer Real?

Re: Vampire V4 core for MiSTer Real?

Re: Lets actually try Hybrid Emulation

Re: Vampire V4 core for MiSTer Real?

Re: Lets actually try Hybrid Emulation

Re: Amiga 68030/40?

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

Re: Lets actually try Hybrid Emulation

Re: Lets actually try Hybrid Emulation

Re: Amiga 68030/40?

Re: Amiga 68030/40?

Re: FPU for the MiSTer Minimig core

Re: Lets actually try Hybrid Emulation

Re: A New Amiga Game Collection

Re: Lets actually try Hybrid Emulation