CORE-V Instruction Set Extensions

Custom instructions

CV32E40X supports the custom instruction(s) listed in Table 29.

Table 29 Custom instructions

Custom instruction

Encoding

Description

wfe

0x8C00_0073

Wait For Event, see WFE.

Further custom instructions can be added external to the core via the eXtension interface described in eXtension Interface.

Custom CSRs

CV32E40X does not contain custom CSRs.