exxos's Atari, Amiga & retro forum

Was the source code for TOS 4.92 ever released? While I appreciate that subsequent development of MINT has made it irrelevant, running the admittedly buggy version on Hatari made me wonder what a debugged version cleaned up to be the TOS 5.0 that was never released would be like running on existing Falcons.

kgilmore wrote: 26 Sep 2025 09:27 Was the source code for TOS 4.92 ever released? While I appreciate that subsequent development of MINT has made it irrelevant, running the admittedly buggy version on Hatari made me wonder what a debugged version cleaned up to be the TOS 5.0 that was never released would be like running on existing Falcons.

I don't think we've even got a complete TOS4.0x listing.

The most interesting part of TOS4.92, IMO is the separation of AES and desktop mentioned in some of the source fragments which has led to the AES4.1.SYS file that's been floating around in the internet since the mid 90s. I often have it (renamed.PRG) in my AUTO folder and if (for some reason) you use the EmuTOS cartridge, you can softload it on top (ET cartridge doesn't have an AES as it's too big for 128k).

I know it has a few problems (mouse click handling doesn't work well with modern FreeMiNT versions, for example), but I really like where it was going.

It's a pity it never saw the proper light of day.

BW

Actually we do have the complete listing, just not in one package.

AES 4.92 is ironically not the latest one, that is the one included in MultiTOS 1.08beta and from that we do have source code, too.

See my overview at https://www.atari-forum.com/viewtopic.p ... 22#p469567.

mikro wrote: 26 Sep 2025 11:56 Actually we do have the complete listing, just not in one package.

AES 4.92 is ironically not the latest one, that is the one included in MultiTOS 1.08beta and from that we do have source code, too.

See my overview at https://www.atari-forum.com/viewtopic.p ... 22#p469567.

Haha. The last post in that thread is me being very excited about it (for reasons given above) and then obviously immediately forgetting it! Age. :?

https://www.atari-forum.com/viewtopic.p ... 17#p469735

BW

EDIT: Ah, wait, sorry. That's the latest AES (in Multitos 108B) you're referring to there rather than the source.

Badwolf wrote: 26 Sep 2025 12:25EDIT: Ah, wait, sorry. That's the latest AES (in Multitos 108B) you're referring to there rather than the source.

Actually both. :) You can really build latest MultiTOS 1.08B from source code on Lonny's site. See ggn's and PeP's effort to port it to the STE.

mikro wrote: 26 Sep 2025 12:57 Actually both. :) You can really build latest MultiTOS 1.08B from source code on Lonny's site. See ggn's and PeP's effort to port it to the STE.

Oh, I've not seen that. Whereabouts are they doing that?

Ta!

BW

mikro wrote: 26 Sep 2025 11:56 Actually we do have the complete listing, just not in one package.

We have the full Falcon BIOS source? Where is it available?

It's all on Lonny's site, just not in one archive.

mikro wrote: 27 Sep 2025 13:17 It's all on Lonny's site, just not in one archive.

Care to elaborate? :) In which archives? In the obvious one, "TOS v4.04 source code", there doesn't seem to be any BIOS source file at all.

Sorry, it has been a long time. But I have recovered and transferred from RCS to git all parts, so I know it's all there.