VGSHA.VV

Vector GCM Hash Accumulate

VGSHA.VV vd, vs2, vs1

Used in GCM GHASH loop.

Details

Vector GCM Hash Accumulate: Used in GCM GHASH loop. Operation: vd = GHASH_Step(vd, vs1, vs2);.

Pseudocode Operation

vd = GHASH_Step(vd, vs1, vs2);

Example

VGSHA.VV v1, v4, v2

Encoding

Binary Layout
101101
31:26
1
25
vs2
24:20
vs1
19:15
010
14:12
vd
11:7
1010111
6:0
 
Format OPIVV
Opcode 0x57
Extension Zvkg

Operands

  • vd
    Destination vector register
  • vs2
    Source vector register 2
  • vs1
    Source vector register 1