VAMOADDD.V

Vector Atomic Add Doubleword

VAMOADDD.V vd, (rs1), vs2, vm

Atomically adds elements from vs2 to memory addresses (64-bit).

Encoding

Binary Layout

00000

31:26

wd

25:21

vm

20

vs2

19:15

rs1

14:12

111

11:7

vd

6:0

0101111

 

Format VAMO

Opcode 0x0000702F

Extension Zvamo (draft)

Operands

• vd
  Dest (Old Val)
• rs1
  Base
• vs2
  Index

Example

VAMOADDD.V v1, a0, v4, v0.t

Related

More in Zvamo (draft)

Reference

View in RISC-V Unprivileged ISA Specification ↗ RISC-V ISA Manual

Description

Vector Atomic Add Doubleword: Atomically adds elements from vs2 to memory addresses (64-bit). Operation: AtomicAdd(rs1 + vs2[i], vd[i]);.

Operation

AtomicAdd(rs1 + vs2[i], vd[i]);