diff --git a/Golang-ppc64x-asm-Reference.md b/Golang-ppc64x-asm-Reference.md
index 2216565..8c5e43b 100644
--- a/Golang-ppc64x-asm-Reference.md
+++ b/Golang-ppc64x-asm-Reference.md
@@ -93,6 +93,7 @@
 ## 其它
 - **VSLDOI** "Vector Shift Left Double by Octet Immediate". This instruction is used to shift the contents of a vector register left by a specified number of octets (8-bit bytes).
 - **XXPERMDI** "Vector Permute Doubleword Immediate". This instruction is used to permute (rearrange) the doublewords (64-bit elements) in a vector register based on an immediate value.
+- **VPERM** "Vector Permute". This instruction is used to permute (rearrange) the bytes in two vector registers based on a permutation vector.
 
 
 # 典型的ppc64及ppc64le