Polaris used to be the name of a simple, 64-bit RISC-V ISA CPU. However, before I could actually complete the project, I discovered that AMD had a line of GPUs by that name.
So, I've decided to rename the Polaris CPU to something deliberately not trademarkable: KCP53000. In so doing, I've also decided that there ought to be a family of useful modules built to work with this CPU. Just as one considers the "m68K" a complete family of products built around the Motorola 68000 (and later, CPU32) ISA, so too should people regard the KCP53000 as the first member of a family of KCP53K ("53K") cores.
The following cores exist so far in this repository:
| ID | Subdirectory | Description | Datasheet? |
|---|---|---|---|
| KCP53000 | processor | 64-bit processor built on the RISC-V 64-bit integer instruction set. | Yes |
| KCP53001 | arbiter | 64-bit Furcula interconnect arbiter. | Not yet (note 1) |
| KCP53002 | wb-bridge | 64-bit Wishbone interconnect bridge. | Not yet (note 1) |
| KCP53003 | bottleneck | 64-bit to 16-bit Furcula bridge. | Not yet |
Notes
- A prototype of these cores are documented in the Example Application chapter of the KCP53000's datasheet.