Fork of mbed-dsp. CMSIS-DSP library of supporting NEON
Dependents: mbed-os-example-cmsis_dsp_neon
Fork of mbed-dsp by
Information
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このページの後半に日本語版が用意されています.
CMSIS-DSP of supporting NEON
What is this ?
A library for CMSIS-DSP of supporting NEON.
We supported the NEON to CMSIS-DSP Ver1.4.3(CMSIS V4.1) that ARM supplied, has achieved the processing speed improvement.
If you use the mbed-dsp library, you can use to replace this library.
CMSIS-DSP of supporting NEON is provied as a library.
Library Creation environment
CMSIS-DSP library of supporting NEON was created by the following environment.
- Compiler
ARMCC Version 5.03 - Compile option switch[C Compiler]
-DARM_MATH_MATRIX_CHECK -DARM_MATH_ROUNDING -O3 -Otime --cpu=Cortex-A9 --littleend --arm --apcs=/interwork --no_unaligned_access --fpu=vfpv3_fp16 --fpmode=fast --apcs=/hardfp --vectorize --asm
- Compile option switch[Assembler]
--cpreproc --cpu=Cortex-A9 --littleend --arm --apcs=/interwork --no_unaligned_access --fpu=vfpv3_fp16 --fpmode=fast --apcs=/hardfp
Effects of NEON support
In the data which passes to each function, large size will be expected more effective than small size.
Also if the data is a multiple of 16, effect will be expected in every function in the CMSIS-DSP.
NEON対応CMSIS-DSP
概要
NEON対応したCMSIS-DSPのライブラリです。
ARM社提供のCMSIS-DSP Ver1.4.3(CMSIS V4.1)をターゲットにNEON対応を行ない、処理速度向上を実現しております。
mbed-dspライブラリを使用している場合は、本ライブラリに置き換えて使用することができます。
NEON対応したCMSIS-DSPはライブラリで提供します。
ライブラリ作成環境
NEON対応CMSIS-DSPライブラリは、以下の環境で作成しています。
- コンパイラ
ARMCC Version 5.03 - コンパイルオプションスイッチ[C Compiler]
-DARM_MATH_MATRIX_CHECK -DARM_MATH_ROUNDING -O3 -Otime --cpu=Cortex-A9 --littleend --arm --apcs=/interwork --no_unaligned_access --fpu=vfpv3_fp16 --fpmode=fast --apcs=/hardfp --vectorize --asm
- コンパイルオプションスイッチ[Assembler]
--cpreproc --cpu=Cortex-A9 --littleend --arm --apcs=/interwork --no_unaligned_access --fpu=vfpv3_fp16 --fpmode=fast --apcs=/hardfp
NEON対応による効果について
CMSIS-DSP内の各関数へ渡すデータは、小さいサイズよりも大きいサイズの方が効果が見込めます。
また、16の倍数のデータであれば、CMSIS-DSP内のどの関数でも効果が見込めます。
dsp/dsp.h@5:a912b042151f, 2015-06-23 (annotated)
- Committer:
- 1050186
- Date:
- Tue Jun 23 06:23:42 2015 +0000
- Revision:
- 5:a912b042151f
- Parent:
- 1:fdd22bb7aa52
first commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emilmont | 1:fdd22bb7aa52 | 1 | /* mbed Microcontroller Library |
emilmont | 1:fdd22bb7aa52 | 2 | * Copyright (c) 2006-2012 ARM Limited |
emilmont | 1:fdd22bb7aa52 | 3 | * |
emilmont | 1:fdd22bb7aa52 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
emilmont | 1:fdd22bb7aa52 | 5 | * of this software and associated documentation files (the "Software"), to deal |
emilmont | 1:fdd22bb7aa52 | 6 | * in the Software without restriction, including without limitation the rights |
emilmont | 1:fdd22bb7aa52 | 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
emilmont | 1:fdd22bb7aa52 | 8 | * copies of the Software, and to permit persons to whom the Software is |
emilmont | 1:fdd22bb7aa52 | 9 | * furnished to do so, subject to the following conditions: |
emilmont | 1:fdd22bb7aa52 | 10 | * |
emilmont | 1:fdd22bb7aa52 | 11 | * The above copyright notice and this permission notice shall be included in |
emilmont | 1:fdd22bb7aa52 | 12 | * all copies or substantial portions of the Software. |
emilmont | 1:fdd22bb7aa52 | 13 | * |
emilmont | 1:fdd22bb7aa52 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
emilmont | 1:fdd22bb7aa52 | 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
emilmont | 1:fdd22bb7aa52 | 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
emilmont | 1:fdd22bb7aa52 | 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
emilmont | 1:fdd22bb7aa52 | 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
emilmont | 1:fdd22bb7aa52 | 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
emilmont | 1:fdd22bb7aa52 | 20 | * SOFTWARE. |
emilmont | 1:fdd22bb7aa52 | 21 | */ |
emilmont | 1:fdd22bb7aa52 | 22 | #ifndef DSP_H |
emilmont | 1:fdd22bb7aa52 | 23 | #define DSP_H |
emilmont | 1:fdd22bb7aa52 | 24 | |
emilmont | 1:fdd22bb7aa52 | 25 | #include "math_helper.h" |
emilmont | 1:fdd22bb7aa52 | 26 | #include "arm_math.h" |
emilmont | 1:fdd22bb7aa52 | 27 | |
emilmont | 1:fdd22bb7aa52 | 28 | #include "FIR_f32.h" |
emilmont | 1:fdd22bb7aa52 | 29 | #include "Sine_f32.h" |
emilmont | 1:fdd22bb7aa52 | 30 | |
emilmont | 1:fdd22bb7aa52 | 31 | using namespace dsp; |
emilmont | 1:fdd22bb7aa52 | 32 | |
emilmont | 1:fdd22bb7aa52 | 33 | #endif |