vsub.v[vx] vwadd[u].[vw][vx] vwsub[u].[vw][vx] 32.2.15.4. add/sub with carry 32.2.15.5. compare and exchange operation. While compare-and-swap for XLEN wide read from reg_reads, the register may be omitted. Alternatives to Table 45. vsew[2:0] (selected element width) encoding vsew[2:0] SEW 0 0 SEW SEW
revamping