Method vfmad_laneq_f64
vfmad_laneq_f64(double, double, v128, int)
Floating-point fused Multiply-Add to accumulator (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, and accumulates the results in the vector elements of the destination SIMD&FP register. All the values in this instruction are floating-point values.This instruction can generate a floating-point exception. Depending on the settings in FPCR, the exception results in either a flag being set in FPSR or a synchronous exception being generated. For more information, see Floating-point exception traps.Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.
Equivalent instruction: FMLA Dd,Dn,Vm.D[lane]
Declaration
public static double vfmad_laneq_f64(double a0, double a1, v128 a2, int a3)Parameters
| Type | Name | Description |
|---|---|---|
| double | a0 | Double a0 |
| double | a1 | Double a1 |
| v128 | a2 | 128-bit vector a2 |
| int | a3 | Lane index to a2. Must be an immediate in the range of [0..1] |
Returns
| Type | Description |
|---|---|
| double | Double |