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Topics - Hooloowalrus

Calc Projects, Programming & Tutorials / Prime Linux
August 31, 2017, 03:21:09 AM
Linux is coming to the Prime.
It should have been there a long time; the chip it runs on, the S3C2416, has been supported for a long time. Recently gaining access to tools for jtag, I decided I would go and connect things up, not realizing that the newer revision of Prime didn't even have jatag pins broken out on the front of the board. I bought a prime, and started working.

Tonight, I got up and running with a shell. There's nothing else here but the shell, actually, and many things don't work. But I got the LCD and serial port working, which is easily enough to test with.

Here's a picture of the shell up and running on tty0:

The sources can be found on my github:
ripem build with loader
qemu for Prime
Since I don't have a good setup for the initramfs running right now, I'm going to figure out how to get buildroot up and running. As long as I'm not too busy with school, I'll figure out how to make a keyboard driver and get the rest of the theoretically working platform drivers (usb, touchscreen) working. If anyone wants to help, go ahead!

x-posting to Omni and Cemetech
Calc Projects, Programming & Tutorials / emu8x CSE
February 22, 2015, 11:56:06 PM
[cross post from cemetech]
I have been porting emu8x, the 81-86 emulator for the 83+SE and 84+(se) to the 84 CSE. Since the only difference between the 84+SE and the 84+CSE is the screen (and flash), I needed to add in an emulated screen. So far it works but is very very slow. I still need to work on fixing some instabilities and other issues.
Screenshot so far:
Lisp, one of the oldest languages still in use, has been ported to the z80 calcs! I started with 8kLisp, an almost 30 year old (older than me) codebase, and so far I have simple I/O working. The project is open-source, and can be found at
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