Method vfmss_laneq_f32
vfmss_laneq_f32(float, float, v128, int)
Floating-point fused Multiply-Subtract from 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 subtracts the results from 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: FMLS Sd,Sn,Vm.S[lane]
Declaration
public static float vfmss_laneq_f32(float a0, float a1, v128 a2, int a3)Parameters
| Type | Name | Description |
|---|---|---|
| float | a0 | Single a0 |
| float | a1 | Single a1 |
| v128 | a2 | 128-bit vector a2 |
| int | a3 | Lane index to a2. Must be an immediate in the range of [0..3] |
Returns
| Type | Description |
|---|---|
| float | Single |