Compiler Explorer is a great way to understand the effect of #riscv extensions or compare CPU arch. You can even compare rv32 and armv7 to a 486. 🤔

For example, an endian swap takes 11 instructions with the base RISC-V ISA, but only 1 instruction (rev8) with the Zbb extension.

If you have a Machdyne Lakritz, @digilent.bsky.social Nexys Video, or Radiona #ULX3S #FPGA board, please give the latest 🏝️Isle design a test and let me know how you get on. 🙏

2D drawing blog post: projectf.io/isle/2d-draw...
FPGA board Support: github.com/projf/isle/t...

Thanks. Yes, I wanted to be able to write drawing instructions for a complex scene, then leave the hardware to implement it. You can do animation and effects by making small changes to the graphics instructions. Plus it's easy to load/save drawings.

🏝️ Earthrise 2D graphics hardware uses a custom 16-bit instruction set. I've written a reference guide and assembler tool to make programming (relatively) easy. #FPGA

Programming reference: github.com/projf/isle/b...

All being well, I'll release the next installment of 🏝️ Isle #FPGA computer this Friday, in time for Halloween. Here's a colour reference graphic I created for the included palettes (you can create your own too).

Today's typo sounds ominous: "Press ctrl-D to exist" 😨

Beautiful seaweed washed up by Storm Benjamin. I’m lucky enough to walk to work along the beach.

Is there a complementary 387 cushion, so two people can compute in comfort?

Today, I managed a fun typo. My fingers invented a new number format "hexacidecimal".

Enjoy that moment, however short it is. 😊

What makes it so good? Easier to move through the train? I've yet to travel on one.

It can be difficult to let your imperfect creations feel the light of public scrutiny, but a project like this only thrives with the thoughts and contributions of many different people. 🙏 [2/2]

I chose “colr” for my current project to avoid this problem. 🙃