VFMA, VFMS
Vector Fused Multiply Accumulate, Vector Fused Multiply Subtract.
Syntax
V{opcond.F32
{QdQnQm
V{opcond.F32
{DdDnDm
where:
opis one of
FMAorFMS.condis an optional condition code.
Dd,Dn,Dmare the destination and operand vectors for doubleword operation.
Qd,Qn,Qmare the destination and operand vectors for quadword operation.
Operation
VFMA multiplies corresponding elements in the two operand vectors, and
accumulates the results into the elements of the destination vector. The result of the
multiply is not rounded before the accumulation.
VFMS multiplies corresponding elements in the two operand vectors, then
subtracts the products from the corresponding elements of the destination vector, and places
the final results in the destination vector. The result of the multiply is not rounded
before the subtraction.