1 /* Copyright (C) 2013-2014 Povilas Kanapickas <povilas@radix.lt>
2
3 Distributed under the Boost Software License, Version 1.0.
4 (See accompanying file LICENSE_1_0.txt or copy at
5 http://www.boost.org/LICENSE_1_0.txt)
6 */
7
8 #ifndef LIBSIMDPP_SIMDPP_CORE_F_SUB_H
9 #define LIBSIMDPP_SIMDPP_CORE_F_SUB_H
10
11 #ifndef LIBSIMDPP_SIMD_H
12 #error "This file must be included through simd.h"
13 #endif
14
15 #include <simdpp/types.h>
16 #include <simdpp/detail/expr/f_sub.h>
17 #include <simdpp/core/detail/scalar_arg_impl.h>
18 #include <simdpp/core/detail/get_expr_uint.h>
19
20
21 namespace simdpp {
22 namespace SIMDPP_ARCH_NAMESPACE {
23
24 /** Substracts the values of two vectors
25
26 @code
27 r0 = a0 - b0
28 ...
29 rN = aN - bN
30 @endcode
31
32 @par 256-bit version:
33 @icost{SSE2-SSE4.1, NEON, ALTIVEC, 2}
34 */
35 template<unsigned N, class E1, class E2> SIMDPP_INL
36 float32<N, expr_fsub<float32<N,E1>,
sub(const float32<N,E1> & a,const float32<N,E2> & b)37 float32<N,E2>>> sub(const float32<N,E1>& a,
38 const float32<N,E2>& b)
39 {
40 return { { a, b } };
41 }
42
SIMDPP_SCALAR_ARG_IMPL_EXPR(sub,expr_fsub,float32,float32)43 SIMDPP_SCALAR_ARG_IMPL_EXPR(sub, expr_fsub, float32, float32)
44
45 /** Subtracts the values of two vectors
46
47 @code
48 r0 = a0 - b0
49 ...
50 rN = aN - bN
51 @endcode
52
53 @par 128-bit version:
54 @novec{NEON, ALTIVEC}
55
56 @par 256-bit version:
57 @novec{NEON, ALTIVEC}
58 @icost{SSE2-SSE4.1, 2}
59 */
60 template<unsigned N, class E1, class E2> SIMDPP_INL
61 float64<N, expr_fsub<float64<N,E1>,
62 float64<N,E2>>> sub(const float64<N,E1>& a,
63 const float64<N,E2>& b)
64 {
65 return { { a, b } };
66 }
67
68 SIMDPP_SCALAR_ARG_IMPL_EXPR(sub, expr_fsub, float64, float64)
69
70 } // namespace SIMDPP_ARCH_NAMESPACE
71 } // namespace simdpp
72
73 #endif
74
75