Search all intrinsics
SIMD ISAReturn TypeNameArgumentsInstruction Group
Neonint32x4_tvmulq_laneq_s32(int32x4_t a, int32x4_t v, const int lane)Scalar arithmetic / Vector multiply by scalar
Description
Multiply (vector, by element). This instruction multiplies the vector elements in the first source SIMD&FP register by the specified value in the second source SIMD&FP register, places the results in a vector, and writes the vector to the destination SIMD&FP register.
Results
Vd.4S result
This intrinsic compiles to the following instructions:

MUL Vd.4S,Vn.4S,Vm.S[lane]

Argument Preparation
a register: Vn.4Sv register: Vm.4Slane minimum: 0; maximum: 3
Architectures
A64

Operation

CheckFPAdvSIMDEnabled64();
bits(datasize) operand1 = V[n];
bits(datasize) operand2 = V[m];
bits(datasize) result;
bits(esize) element1;
bits(esize) element2;
bits(esize) product;

for e = 0 to elements-1
    element1 = Elem[operand1, e, esize];
    element2 = Elem[operand2, e, esize];
    if poly then
        product = PolynomialMult(element1, element2)<esize-1:0>;
    else
        product = (UInt(element1) * UInt(element2))<esize-1:0>;
    Elem[result, e, esize] = product;

V[d] = result;