elks
ao486_MiSTer
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| elks | ao486_MiSTer | |
|---|---|---|
| 25 | 21 | |
| 922 | 235 | |
| - | 1.3% | |
| 9.6 | 5.8 | |
| 2 days ago | 5 days ago | |
| C | Verilog | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
elks
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Damn Small Linux 2024
ELKS supported MMU-less operation on 8088 and 80286 machines, but I don't think an ARM port exists: https://github.com/ghaerr/elks
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SIIG MiniSys S286 Small Form Factor PC
Roughly in the mid-90s I bought at a local surplus store a "Carry 1" industrial 8088 computer which to my surprise I later discovered it could run Linux (ELKS: https://github.com/ghaerr/elks). I ultimately sold it on Ebay because although it was a beautiful piece of old tech, I was struggling to find more space for other things.
Here's one. I had only the central unit, mine had two floppy drives.
- ELKS Embeddable Linux Kernel Subset – Linux for 8086
- ELKS 0.70 released: Linux for the 8086
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My Happy HP 95LX is my everyday computer.
I don't think you can replace the OS on these. Unless there is a way to boot them from DOS, but you are looking at 8c086 machine so the choice is limited. Linux or BSD won't work. But ELKS might if it can be made to boot from DOS. Minix 2.02 seems to work.
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$5 Ai-M62-12F-Kit RISC-V development board features BL616 WiFi 6, BLE 5.2, and Zigbee MCU, plenty of I/Os - CNX Software
Yet ELKS works on 16 bit computers with 640k of RAM.
- ELKS: Embeddable Linux Kernel Subset
- Past meets present in this $200 mini-laptop with a Intel 8088 chip and 640KB
- Imaging an MFM Hard Disk on a PC XT
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Furby 1998 Source Code
Some small size Linux-like OSes do exist though: one commenter suggested Lunix (which I didn't know, thanks for the link), and a slightly bigger one is ELKS which runs on old MMU-less x86 CPUs. I managed to run it on a 8088 industrial PC ages ago.
https://github.com/jbruchon/elks
I should have a Furby buried somewhere; now that I think of it, it may be the right platform to stick a bigger brain into, make it wireless so that it could be connected to the home IoT network then signal events or alerts.
ao486_MiSTer
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Reverse engineering the Intel 386 processor's register cell
How about a 486 instead? :)
https://github.com/MiSTer-devel/ao486_MiSTer
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Issues with AO486
Have you checked all the details in https://github.com/MiSTer-devel/ao486_MiSTer ?
- Ao486_MiSTer: i486 core for the MiSTer FPGA gaming system
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Recently, I came across a video on Youtube by Linus Tech Tips about the PCEm emulator that I found to be cringy and ill-informed. As a computer engineer by education let me explain few core concepts on how emulation works.
You mention "Pentium MMX CPU" a few times in your post, but fail to mention any FPGA solution that can emulate a machine of that class. MiSTer can't do that, the best it can do is a 486 (not just missing MMX, doesn't even have an FPU).
- Exact 486 CPU Performance in Smallest Form Factor
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Emulate Any ISA Card With A Raspberry Pi And An FPGA
It has already happened: https://github.com/MiSTer-devel/ao486_MiSTer
- Are there FPGA cores for SB16/ET4KW32/NE2K?
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KEYBCS2
The last processor generation it worked on is the 486, but on a Pentium or newer it always fails with a “Debugging is not allowed” message.
I guessed the reason for that correctly - prefetch queue. Mentions of CUP386 in the comments also brought back more memories of the cracking scene in the late 80s/early 90s. There's some very interesting discussion on SMC vs CPU behaviour here --- in the context of an open-source 486-level SoC core:
https://github.com/MiSTer-devel/ao486_MiSTer/issues/33
What are some alternatives?
gcc-ia16 - Fork of Lambertsen & Jenner (& al.)'s IA-16 (Intel 16-bit x86) port of GNU compilers ― added far pointers & more • use https://github.com/tkchia/build-ia16 to build • Ubuntu binaries at https://launchpad.net/%7Etkchia/+archive/ubuntu/build-ia16/ • DJGPP/MS-DOS binaries at https://gitlab.com/tkchia/build-ia16/-/releases • mirror of https://gitlab.com/tkchia/gcc-ia16
dosbox-x - DOSBox-X fork of the DOSBox project
IoTGoat - IoTGoat is a deliberately insecure firmware created to educate software developers and security professionals with testing commonly found vulnerabilities in IoT devices.
PCem-ROMs - This is a collection of requiered ROMs files for PCem emulator. RIP PCem 2021
FUZIX - FuzixOS: Because Small Is Beautiful
libi86 - Attempt to reimplement non-standard C library facilities (e.g. <conio.h>) used in MS-DOS programs, for IA-16 GCC & ACK ― mirror of https://gitlab.com/tkchia/libi86 • Ubuntu packages for cross-compilation at https://launchpad.net/%7Etkchia/+archive/ubuntu/build-ia16/ • DJGPP/MS-DOS binaries at https://github.com/tkchia/libi86/releases
linux-uwu - An optimized kernel based on the Debian Linux sources with graysky2's gcc optimization patch, Gabriel Krisman's fsync patch, and some Clear Linux patches layered on top
vISA
libudev-zero - Daemonless replacement for libudev
microwatt - A tiny Open POWER ISA softcore written in VHDL 2008
XTulator - XTulator is a portable, open source x86 PC emulator currently supporting the 8086 instruction set and 80186 extensions.
NyuziProcessor - GPGPU microprocessor architecture