vstore_halfn

Convert float vector to half vector and write to a pointer to memory.

`void vstore_halfn (`	float`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rte (`	float`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtz (`	float`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtp (`	float`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtn (`	float`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn (`	double`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rte (`	double`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtz (`	double`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtp (`	double`n` `data`,
	size_t `offset`,
	half `*p)`

`void vstore_halfn_rtn (`	double`n` `data`,
	size_t `offset`,
	half `*p)`

Description

The floatn (or doublen) value given by data is converted to a halfn value using the appropriate rounding mode. The halfn value is then written to address computed as (p + (offset * n)). The address computed as (p + (offset * n)) must be 16-bit aligned.

vstore_halfn uses the default rounding mode. The default rounding mode is round to nearest even.

Notes

Vector Data Load and Store Functions allow you to read and write vector types from a pointer to memory.

The suffix n in the function names (i.e. vloadn, vstoren etc.) represent n-element vectors, where n = 2, 3, 4, 8 or 16.

The results of vector data load and store functions are undefined if the address being read from or written to is not correctly aligned. The pointer argument p can be a pointer to global, local, or private memory for store functions. The pointer argument p can be a pointer to global, local, constant or private memory for load functions.

NOTE: The vector data load and store functions variants that take pointer arguments which point to the generic address space are also supported.

vload3 and vload_half3 read x, y, z components from address (p + (offset * 3)) into a 3-component vector. vstore3, and vstore_half3 write x, y, z components from a 3-component vector to address (p + (offset * 3)).

In addition vloada_half3 reads x, y, z components from address (p + (offset * 4)) into a 3- component vector and vstorea_half3 writes x, y, z components from a 3-component vector to address (p + (offset * 4)).

Specification

OpenCL Specification

Also see

Vector Data Load and Store Functions

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