Building Simulation error

[lipf1987]

Building Simulation error

[rswarbrick]

Ah, that makes sense. This is the same problem as we had to fix for OTBN in lowRISC/opentitan#17971.

This was a bit easier for OTBN. To get things working in Ibex, a problem is that the decode functions (e.g. decode_r_insn) fundamentally need to produce both decoded_str and data_accessed.

Clearly, we could silence the warnings with the lint_off lines suggested in the error message.

Alternatively, we could tweak our decode functions slightly so that they return the string and bitmask as a struct. I think that would probably work reasonably well.

@lipf1987: Would you be happy to try one of these approaches and make a PR? (@GregAC: Do they make sense to you? Anything simpler that we could do?)

[lipf1987]

hi
Thanks for your help
lint_off can solve this problem。

[rswarbrick]

We still need to fix it properly at our end :-) I'll push a hacky PR for now and tag this issue with it.