vstore_half

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

void vstore_half ( float data,
  size_t offset,
  __global half *p)
void vstore_half_rte ( float data,
  size_t offset,
  __global half *p)
void vstore_half_rtz ( float data,
  size_t offset,
  __global half *p)
void vstore_half_rtp ( float data,
  size_t offset,
  __global half *p)
void vstore_half_rtn ( float data,
  size_t offset,
  __global half *p)

void vstore_half ( float data,
  size_t offset,
  __local half *p)
void vstore_half_rte ( float data,
  size_t offset,
  __local half *p)
void vstore_half_rtz ( float data,
  size_t offset,
  __local half *p)
void vstore_half_rtp ( float data,
  size_t offset,
  __local half *p)
void vstore_half_rtn ( float data,
  size_t offset,
  __local half *p)

void vstore_half ( float data,
  size_t offset,
  __private half *p)
void vstore_half_rte ( float data,
  size_t offset,
  __private half *p)
void vstore_half_rtz ( float data,
  size_t offset,
  __private half *p)
void vstore_half_rtp ( float data,
  size_t offset,
  __private half *p)
void vstore_half_rtn ( float data,
  size_t offset,
  __private half *p)

If the double extension is enabled, you may use double instead of float.

Description

The single-precision floating-point value given by data is first converted to a half value using the appropriate rounding mode. The half value is then written to address computed as (p + offset). The write address computed as (p + offset) must be 16-bit aligned.

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

Notes

If extended with cl_khr_fp64, the function is extended to allow a double precision scalar or vector value to be written to memory as half values. In this case, the functions use double instead of float.

Specification

OpenCL Specification

Also see

Vector Data Load and Store Functions

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