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_I_SUB_H
9 #define LIBSIMDPP_SIMDPP_CORE_I_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/i_sub.h>
17 #include <simdpp/core/detail/get_expr_uint.h>
18 #include <simdpp/core/detail/scalar_arg_impl.h>
19 #include <simdpp/core/detail/get_expr_uint.h>
20
21 namespace simdpp {
22 namespace SIMDPP_ARCH_NAMESPACE {
23
24 /** Subtracts 8-bit integer values.
25
26 @code
27 r0 = a0 - b0
28 ...
29 rN = aN - bN
30 @endcode
31
32 @par 256-bit version:
33 @icost{SSE2-AVX, NEON, ALTIVEC, 2}
34 */
35 template<unsigned N, class V1, class V2> SIMDPP_INL
36 typename detail::get_expr_uint<expr_isub, V1, V2>::type
sub(const any_int8<N,V1> & a,const any_int8<N,V2> & b)37 sub(const any_int8<N,V1>& a,
38 const any_int8<N,V2>& b)
39 {
40 return { { a.wrapped(), b.wrapped() } };
41 }
42
SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub,expr_isub,any_int8,int8)43 SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub, expr_isub, any_int8, int8)
44
45 /** Subtracts 16-bit integer values.
46
47 @code
48 r0 = a0 - b0
49 ...
50 rN = aN - bN
51 @endcode
52
53 @par 256-bit version:
54 @icost{SSE2-AVX, NEON, ALTIVEC, 2}
55 */
56 template<unsigned N, class V1, class V2> SIMDPP_INL
57 typename detail::get_expr_uint<expr_isub, V1, V2>::type
58 sub(const any_int16<N,V1>& a,
59 const any_int16<N,V2>& b)
60 {
61 return { { a.wrapped(), b.wrapped() } };
62 }
63
SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub,expr_isub,any_int16,int16)64 SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub, expr_isub, any_int16, int16)
65
66 /** Subtracts 32-bit integer values.
67
68 @code
69 r0 = a0 - b0
70 ...
71 rN = aN - bN
72 @endcode
73
74 @par 256-bit version:
75 @icost{SSE2-AVX, NEON, ALTIVEC, 2}
76 */
77 template<unsigned N, class V1, class V2> SIMDPP_INL
78 typename detail::get_expr_uint<expr_isub, V1, V2>::type
79 sub(const any_int32<N,V1>& a,
80 const any_int32<N,V2>& b)
81 {
82 return { { a.wrapped(), b.wrapped() } };
83 }
84
SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub,expr_isub,any_int32,int32)85 SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub, expr_isub, any_int32, int32)
86
87 /** Subtracts 64-bit integer values.
88
89 @code
90 r0 = a0 - b0
91 ...
92 rN = aN - bN
93 @endcode
94
95 @par 128-bit version:
96 @icost{ALTIVEC, 5-6}
97
98 @par 256-bit version:
99 @icost{SSE2-AVX, NEON, 2}
100 @icost{ALTIVEC, 10-11}
101 */
102 template<unsigned N, class V1, class V2> SIMDPP_INL
103 typename detail::get_expr_uint<expr_isub, V1, V2>::type
104 sub(const any_int64<N,V1>& a,
105 const any_int64<N,V2>& b)
106 {
107 return { { a.wrapped(), b.wrapped() } };
108 }
109
110 SIMDPP_SCALAR_ARG_IMPL_INT_UNSIGNED(sub, expr_isub, any_int64, int64)
111
112
113 } // namespace SIMDPP_ARCH_NAMESPACE
114 } // namespace simdpp
115
116 #endif
117
118