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c8067ba0c0
* Squashed 'deps/math-neon/' content from commit 0050735 git-subtree-dir: deps/math-neon git-subtree-split: 0050735ae8f18281c1e6fbe2dc80546e402b7fc5 * Squashed 'deps/vitaGL/' content from commit 694b387 git-subtree-dir: deps/vitaGL git-subtree-split: 694b387a6eacf7e179f07ff621e5772ae4253315 * (Vita) Add baked math-neon and vitaGL
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/*
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The MIT License (MIT)
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Copyright (c) 2015 Lachlan Tychsen-Smith (lachlan.ts@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "math.h"
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#include "math_neon.h"
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float ldexpf_c(float m, int e)
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{
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union {
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float f;
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int i;
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} r;
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r.f = m;
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r.i += (e << 23);
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return r.f;
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}
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float ldexpf_neon_hfp(float m, int e)
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{
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#ifdef __MATH_NEON
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float r;
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asm volatile (
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"lsl r0, r0, #23 \n\t" //r0 = r0 << 23
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"vdup.i32 d1, r0 \n\t" //d1 = {r0, r0}
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"vadd.i32 d0, d0, d1 \n\t" //d0 = d0 + d1
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::: "d0", "d1"
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);
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#endif
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}
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float ldexpf_neon_sfp(float m, int e)
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{
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#ifdef __MATH_NEON
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float r;
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asm volatile (
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"lsl r1, r1, #23 \n\t" //r1 = r1 << 23
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"vdup.f32 d0, r0 \n\t" //d0 = {r0, r0}
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"vdup.i32 d1, r1 \n\t" //d1 = {r1, r1}
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"vadd.i32 d0, d0, d1 \n\t" //d0 = d0 + d1
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"vmov.f32 r0, s0 \n\t" //r0 = s0
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::: "d0", "d1"
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);
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#else
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return ldexpf_c(m,e);
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#endif
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}
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