Adding custom instructions into RI5CY core
#3
We need RI5CY (or CV32E40P) extensions like bit manipulation and HW loops, and Ibex doesn't have a custom istruction interface anyway. I totally understand the benefits of the HWPEs, but still for some tasks it's good to have a custom instruction with very low latency (cycles). Does it mean that the only way to customize RI5CY is to modify the existing source codes? We are comfortable with HDL but the lack of code documentation may be an issue.
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RE: Adding custom instructions into RI5CY core - by plumerai - 09-25-2020, 10:17 AM

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