PCOUNT

Operation

Count set significant positions for the selected element size.

Assembler Syntax

PCOUNT.{B|W|L|Q}(z) Pn(p), Rn(r)

Privilege

Unprivileged

Required CPUID flags

VECTOR

The selected element size maps Pn to one significant predicate position per logical element. PCOUNT scans those positions and writes the number of set significant positions to Rn. Bits between significant positions lie outside the count.

2.75in

Encodings

PCOUNT.{B|W|L|Q}(z) Pn(p), Rn(r)

Format: Instruction format for PCOUNT.{B|W|L|Q}(z) Pn(p), Rn(r)