Mercurial > vec

comparison src/impl/fallback.c @ 28:c6c99ab1088a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*: add min/max functions and a big big refactor (again) agh, this time I added a few more implementations (and generally made the code just a little faster...)
author Paper <paper@tflc.us>
date Thu, 24 Apr 2025 00:54:02 -0400
parents 92156fe32755
children bf6ad516f1e6
comparison
equal deleted inserted replaced
27:d00b95f95dd1 28:c6c99ab1088a
1 /**
2 * vec - a tiny SIMD vector library in C99
3 *
4 * Copyright (c) 2024 Paper
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 **/
24
1 #include "vec/impl/fallback.h" 25 #include "vec/impl/fallback.h"
2 26
3 #include <string.h> 27 #include <string.h>
4 28
5 // Fallback implementations - this is what an implementation should use if it 29 // Fallback implementations - this is what an implementation should use if it
6 // doesn't support a specific function *and* the actual representation in 30 // doesn't support a specific function *and* the actual representation in
7 // memory is unknown or yields incorrect results from the generic functions. 31 // memory is unknown or yields incorrect results from the generic functions.
8 // This is *extremely* unlikely; for x86 the layout is exactly the same in 32 // This is *extremely* unlikely; for x86 the layout is exactly the same in
9 // memory as the generic functions (i.e. it is literally stored as an array of 33 // memory as the generic functions (i.e. it is literally stored as an array of
10 // integers). This is likely true for AltiVec and NEON as well, but those 34 // integers). This is also true for AltiVec. This is likely true for NEON as well,
11 // aren't tested for now. 35 // but that isn't tested for now.
12 36
13 #define VEC_FALLBACK_OPERATION(op, sign, csign, bits, size) \ 37 #define VEC_FALLBACK_OPERATION(op, sign, csign, bits, size) \
14 do { \ 38 do { \
15 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(varr1); \ 39 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(varr1); \
16 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(varr2); \ 40 V##csign##INT##bits##x##size##_ALIGNED_ARRAY(varr2); \