polaris

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An old commit I found while cleaning up repositories

neuschaefer

M-mode only design is not scalable to better CPUs. Use U-mode only design.

1

(idea from sorear on IRC #riscv) The 53000 was originally designed prior to v1.9 priv spec, and thus is currently designed to offer an M-mode only environment for software to...

sam-falvo

- [ ] Alignment - [ ] Access

sam-falvo

- [ ] Alignment - [ ] Access If any error happens when fetching an instruction, we must preserve PC, not IA, in the mepc register. We take the trap...

sam-falvo

sam-falvo

Polaris 116080201 is too slow.

1

If synthesized on an iCE40HX-8K device, icetime reports that the chip is too slow to run a minimal Kestrel-3 operating environment at the desired instruction execution rate. Total path delay:...

sam-falvo