Misc. Projects&Random Useless Stuff – Well… Mostly useless stuff, in fact !

Some more optimizations on RISC-V

Using A0/A1 for parameters, and return value in A0 Some weird results when trying to just swap 2 bytes :

I am currently trying to get the best performance on this 48Mhz clocked Risc-V, to implement a HD6301 emulator (clocked

Random Stuff : Serial Output on GND/TX/RX header PrintEnv from u-boot (stopped by Ctrl-C)

It’s been a long time since last post… Here are some photos of the latest adapter revision. From components to

Continued the CH554 Atari USB-Quadrature Adapter. Used VSCode and Platformio this time : It works quite well with the mouse

I made a first prototype with a STM32F411 that I had in stock, and it happened to work fairly well

The RTC chip was a Motorola MC146818. And the plastic was easy to cut, thus I simply removed the old

My old Falcon 030 is back to live : I have updated its TOS to v4.04 (was 4.01), and added

Not a lot of I/Os are left and available on my Z80/PSoC module, but with some tricks, I was able

Since March 13th, the website was down, due to some network configuration changes. I have restored it this morning. JJ