NAME

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

       void vstorea_halfn(floatn data, size_t offset, __global half *p);

       void vstorea_halfn_rte(floatn data, size_t offset, __global half *p);

       void vstorea_halfn_rtz(floatn data, size_t offset, __global half *p);

       void vstorea_halfn_rtp(floatn data, size_t offset, __global half *p);

       void vstorea_halfn_rtn(floatn data, size_t offset, __global half *p);

       void vstorea_halfn(floatn data, size_t offset, __local half *p);

       void vstorea_halfn_rte(floatn data, size_t offset, __local half *p);

       void vstorea_halfn_rtz(floatn data, size_t offset, __local half *p);

       void vstorea_halfn_rtp(floatn data, size_t offset, __local half *p);

       void vstorea_halfn_rtn(floatn data, size_t offset, __local half *p);

       void vstorea_halfn(floatn data, size_t offset, __private half *p);

       void vstorea_halfn_rte(floatn data, size_t offset, __private half *p);

       void vstorea_halfn_rtz(floatn data, size_t offset, __private half *p);

       void vstorea_halfn_rtp(floatn data, size_t offset, __private half *p);

       void vstorea_halfn_rtn(floatn data, size_t offset, __private half *p);

       If the optional double is supported, you may use
       doublen instead of floatn.

DESCRIPTION

       The floatn (or doublen if optional double is supported) value igiven by data is converted
       to a halfn value using the appropriate rounding mode.

       For n = 1, 2, 4, 8 and 16, the halfn value is written to the address computed as (p +
       (offset * n)). The address computed as (p + (offset * n)) must be aligned to sizeof
       (halfn) bytes.

       For n = 3, the half3 value is written to the address computed as (p + (offset * 4)). The
       address computed as (p + (offset * 4)) must be aligned to sizeof (half) * 4 bytes.

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

       An application that wants to use half and halfn types will need to include the #pragma
       OPENCL EXTENSION cl_khr_fp16(3clc) : enable directive.

NOTES

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

       The generic type gentype is used to indicate the built-in data types char, uchar, short,
       ushort, int, uint, long, ulong, float, or double.

       The generic type name gentypen represents n-element vectors of gentype elements. The
       suffix n is also used in the function names (i.e.  vloadn, vstoren, etc.), 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(3clc), local(3clc), or private(3clc) memory for store functions. The pointer
       argument p can be a pointer to __global, __local, constant(3clc) or __private memory for
       load functions.

       vstorea_half3 writes x, y, z components from a 3-component vector to address (p + (offset
       * 4)).

SPECIFICATION

       OpenCL Specification[1]

SEE ALSO

       vectorDataLoadandStoreFunctions(3clc)

AUTHORS

       The Khronos Group

COPYRIGHT

       Copyright © 2007-2011 The Khronos Group Inc.
       Permission is hereby granted, free of charge, to any person obtaining a copy of this
       software and/or associated documentation files (the "Materials"), to deal in the Materials
       without restriction, including without limitation the rights to use, copy, modify, merge,
       publish, distribute, sublicense, and/or sell copies of the Materials, and to permit
       persons to whom the Materials are furnished to do so, subject to the condition that this
       copyright notice and permission notice shall be included in all copies or substantial
       portions of the Materials.

NOTES

        1. OpenCL Specification
           page 267, section 6.12.7 - Vector Data Load and Store Functions