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Forum Index : Microcontroller and PC projects : Linux and Doom running on CMM2

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epsilon

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Joined: 30/07/2020
Location: Belgium
Posts: 255

Posted: 08:57pm 07 Dec 2020

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Hi all,

A CS student called TobleMiner has Linux and Doom running smoothly on the CMM2 hardware. Quite an achievement I think.

This was posted on reddit last September:
https://www.reddit.com/r/itrunsdoom/comments/io9i1o/the_cmm2_retro_computer_runs_doom/

(Apologies if this has been posted before).

Epsilon CMM2 projects

JohnS
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Joined: 18/11/2011
Location: United Kingdom
Posts: 4147

Posted: 09:50pm 07 Dec 2020

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Good find!

I don't recall seeing it before.

John

mkopack73
Senior Member

Joined: 03/07/2020
Location: United States
Posts: 261

Posted: 03:11am 08 Dec 2020

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Ok, but WHY??? Kinda defeats the entire purpose of this machine...

LeoNicolas

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Joined: 07/10/2020
Location: Canada
Posts: 528

Posted: 04:53am 08 Dec 2020

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mkopack73 said Ok, but WHY??? �Kinda defeats the entire purpose of this machine...

I agree... This destroys the real purpose of the machine... that is run Basic and retrieving the real nostalgic feeling of programming an old 8bits computer.
The real challenge is to create DOOM using MMBasic like the games created by Mauro Xavier (https://github.com/mauroxavierneto)

epsilon

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Joined: 30/07/2020
Location: Belgium
Posts: 255

Posted: 08:13am 08 Dec 2020

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LeoNicolas said
I agree... This destroys the real purpose of the machine...

That is the point I think: "This subreddit focuses on odd hardware that runs Doom. Calculators, ATMs, fridges, old video game systems if it has a computer in it, it can possibly run Doom."

Epsilon CMM2 projects

Plasmamac

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Joined: 31/01/2019
Location: Germany
Posts: 594

Posted: 11:40am 08 Dec 2020

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Why so serious?

Plasma

MauroXavier
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Joined: 06/03/2016
Location: Brazil
Posts: 303

Posted: 01:50pm 09 Dec 2020

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I think was a great job to port Linux to the CMM2, and still running Doom, as the memory restrictions to run both at same time is very significant.

I would like to see Doom running natively in the CMM2, booting directly from SD card without booting Linux, or running all in a CSUB or something like this, if possible.

Talking about me, I'm not intend to not make a complete Doom port to the CMM2 using the original source code, but who knows in a distant future, if no one makes one before, I can make a Doom reimplementation in MMBasic, as the Wolf3D... And talking about it, soon I will upload a new version of Wolf3D and Demo X with some enhancements of the new firmware.
Edited 2020-12-09 23:52 by MauroXavier

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 10590

Posted: 01:52pm 09 Dec 2020

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Quote as the memory restrictions to run both at same time is very significant.

He is not using a standard CMM2. His version has 32Mb of RAM rather than 8Mb
Edited 2020-12-09 23:54 by matherp

MauroXavier
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Joined: 06/03/2016
Location: Brazil
Posts: 303

Posted: 01:56pm 09 Dec 2020

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matherp said He is not using a standard CMM2. His version has 32Mb of RAM rather than 8Mb

Humm... This explain how it run Doom fast without pause, as probably is not using swap.
Edited 2020-12-09 23:59 by MauroXavier

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