674 Tiny ALU
674 : Tiny ALU
- Author: Adam Majmudar
- Description: A super simple ALU from my GPU design
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
I'm designing a minimal GPU, which is a large project and also challenging to connect with the tt06 pins. Rather than try to wrangle with this setup and buy up a bunch of tiles, I figured I would put together something simple so I can get the peace of mind of having a submission!
I'll still be shipping my GPU project, which I'll add a link to here soon - but for tapeout I didn't want to block on that.
How to test
The test bench is quite simple - just testing the addition function of the ALU.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | rs[0] | alu_out[0] | alu_arithmetic_mux[0] |
| 1 | rs[1] | alu_out[1] | alu_arithmetic_mux[1] |
| 2 | rs[2] | alu_out[2] | |
| 3 | rs[3] | alu_out[3] | |
| 4 | rt[0] | ||
| 5 | rt[1] | ||
| 6 | rt[2] | ||
| 7 | rt[3] |