11–20 of 69 posts
There's something weirdly unsatisfying about building a Raspberry Pi appliance that boots to Linux just to do a Thing, when it could just boot to the Thing.
Very cool project! I've been getting more and more interested in "bare metal" projects, and one day am just going to dive right in. There's something weirdly unsatisfying about building a Raspberry Pi appliance that boots to Linux just to do a Thing, when it could just boot to the Thing.
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It is open source: https://github.com/randyrossi/bmc64 No Linux kernel there https://github.com/randyrossi/bmc64/blob/master/kernel.cpp
That is pretty friggin awesome. And even more awesome that you can just copy over whatever d64s to the image that I assume are easily accessible in the c64 environment once booted. I was considering trying something like Combian64 but this seems way tighter. Edit ah too bad actually was looking for something that would work with my pi400 but I guess bmc64 only works up to pi3. If anyone could port bmc64 to pi4 or mak…
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And it doesn’t look like there is any Linux or supporting Linux elements embedded into that image I don’t think? (From what I saw in the page dang posted/updated)
It is open source: https://github.com/randyrossi/bmc64 No Linux kernel there https://github.com/randyrossi/bmc64/blob/master/kernel.cpp
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That is pretty friggin awesome. And even more awesome that you can just copy over whatever d64s to the image that I assume are easily accessible in the c64 environment once booted. I was considering trying something like Combian64 but this seems way tighter. Edit ah too bad actually was looking for something that would work with my pi400 but I guess bmc64 only works up to pi3. If anyone could port bmc64 to pi4 or mak…
Unfortunate the Pi 4 is more like a PC with a few layers of turtles between the user and the hardware. Up until then the pi were more like a microcontroller with a UI layer atop. You could peel that back and get at the raw goodies. The newer pi is vastly more complex and requires all these dark processes and proprietary firmware blobs beneath the OS to make it go.
[1]: https://github.com/hoglet67/PiTubeDirect
[2]: https://en.wikipedia.org/wiki/BBC_Micro_expansion_unit#Secon...
See also, PiTubeDirect[1], which runs on a Raspberry Pi which you have plugged into the second processor port of a BBC Micro[2], and turns the Pi into emulator for a number of different processors, notably an arbitrarily fast 6502, a Z80, or an 80286. [1]: https://github.com/hoglet67/PiTubeDirect [2]: https://en.wikipedia.org/wiki/BBC_Micro_expansion_unit#Secon...
ZX Spectrum https://zxmini.speccy.org/en/index.html
Gameboy https://github.com/angeris/CS107E-GB-Emulator
8086 / 80186 https://github.com/jhhoward/Faux86
Dragon32 https://github.com/eyalabraham/Dragon32-RPi-Bare-Metal
Those are all I know. :) I dream of a bare metal Amiga!
Or you can use a bare metal compiling environment like Zig or Cosmopolitan?
I wonder if bare metal emulators can achieve similar latency for software emulation.