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pulp-platform / ara

The PULP Ara is a 64-bit Vector Unit, compatible with the RISC-V Vector Extension Version 1.0, working as a coprocessor to CORE-V's CVA6 core
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Faulty VID Instruction Result #255

Open garyhsuhsu opened 1 year ago

garyhsuhsu commented 1 year ago

Hi,

We're doing a simple test of the VID instruction on Spike, Verilator, and Questasim. image

But somehow we can only get correct result on Spike. image

Not on Verilator and Questasim. image

Is this a known issue for this VPU?

Thanks, Gary

mp-17 commented 8 months ago

Hello @garyhsuhsu,

Thank you for pointing this out, we are planning to solve all the issues in bundle with a better verification effort.