ibex
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lowRISC
Ibex is a small 32 bit RISC-V CPU core, previously known as zero-riscy.
It could be interesting to support RV64I as well as RV32I (imagine small helper cores, with access to the same address space as a larger 64-bit application cores). Before leaping...
The current `riscv_csr_test` uses the file https://github.com/lowRISC/ibex/blob/master/dv/uvm/core_ibex/riscv_dv_extension/csr_description.yaml to determine what CSRs to read/write and expected values. These descriptions can change between Ibex configurations so a solution is needed to allow...
In #1304 , we discussed that there might be an additional cycle of latency added when entering and interrupt handler in the 2-stage configuration. See https://github.com/lowRISC/ibex/pull/1304#discussion_r594375140 for more details. We...
Document what it means to be an 'supported' configuration along with the current supported configurations and how the ibex_config.py utility works. Part of the configuration documentation can be autogenerated from...
I see spike timeouts in DV runs of the test `riscv_pmp_full_random_test` test. Below is one example, but I see them in multiple runs (not all of them): ``` 2021-01-07T15:23:14.2445665Z Thu,...
*This is a tracking bug. This description will be updated to reflect the current state of affairs. Comment if you have suggestions or updates.* [Yosys](http://www.clifford.at/yosys/) currently supports only a limited...
I thought the FPGA Ibex offering might be enhanced by including a ready-to-use (but with the flexibility to opt-out, if desired, at synthesis time) example RISC-V debug implementation. My goal...
Hi , when IBEX_CONFIG=small, SEED=27754, ISS=OVPSIM, riscv_mmu_stress_test test failed. it is failed because there are some mismatches between rtl sim csv log and ovpsim csv log, could you please help...
The synthesis flow uses a variety of python, shell and TCL scripts that expect certain things to be correct. When it breaks the errors it produces don't obviously point to...
It would be awesome if you had a "information from tape outs" type page in the documentation somewhere. I would like to see it have the following information; - [...
