Method vqshrn_high_n_u64
vqshrn_high_n_u64(v64, v128, int)
Unsigned saturating Shift Right Narrow (immediate). This instruction reads each vector element in the source SIMD&FP register, right shifts each result by an immediate value, saturates each shifted result to a value that is half the original width, puts the final result into a vector, and writes the vector to the lower or upper half of the destination SIMD&FP register. All the values in this instruction are unsigned integer values. The results are truncated. For rounded results, see UQRSHRN.The UQSHRN instruction writes the vector to the lower half of the destination register and clears the upper half, while the UQSHRN2 instruction writes the vector to the upper half of the destination register without affecting the other bits of the register.If overflow occurs with any of the results, those results are saturated. If saturation occurs, the cumulative saturation bit FPSR.QC is set.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: UQSHRN2 Vd.4S,Vn.2D,#n
Declaration
public static v128 vqshrn_high_n_u64(v64 a0, v128 a1, int a2)
Parameters
Type | Name | Description |
---|---|---|
v64 | a0 | 64-bit vector a0 |
v128 | a1 | 128-bit vector a1 |
int | a2 | Int32 a2 |
Returns
Type | Description |
---|---|
v128 | 128-bit vector |