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。
cmsis_dsp/math_helper.h@1:fdd22bb7aa52, 2012-11-28 (annotated)
- Committer:
- emilmont
- Date:
- Wed Nov 28 12:30:09 2012 +0000
- Revision:
- 1:fdd22bb7aa52
- Child:
- 2:da51fb522205
DSP library code
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
emilmont | 1:fdd22bb7aa52 | 1 | /* ---------------------------------------------------------------------- |
emilmont | 1:fdd22bb7aa52 | 2 | * Copyright (C) 2010 ARM Limited. All rights reserved. |
emilmont | 1:fdd22bb7aa52 | 3 | * |
emilmont | 1:fdd22bb7aa52 | 4 | * $Date: 29. November 2010 |
emilmont | 1:fdd22bb7aa52 | 5 | * $Revision: V1.0.3 |
emilmont | 1:fdd22bb7aa52 | 6 | * |
emilmont | 1:fdd22bb7aa52 | 7 | * Project: CMSIS DSP Library |
emilmont | 1:fdd22bb7aa52 | 8 | * |
emilmont | 1:fdd22bb7aa52 | 9 | * Title: math_helper.h |
emilmont | 1:fdd22bb7aa52 | 10 | * |
emilmont | 1:fdd22bb7aa52 | 11 | * |
emilmont | 1:fdd22bb7aa52 | 12 | * Description: Prototypes of all helper functions required. |
emilmont | 1:fdd22bb7aa52 | 13 | * |
emilmont | 1:fdd22bb7aa52 | 14 | * Target Processor: Cortex-M4/Cortex-M3 |
emilmont | 1:fdd22bb7aa52 | 15 | * |
emilmont | 1:fdd22bb7aa52 | 16 | * Version 1.0.3 2010/11/29 |
emilmont | 1:fdd22bb7aa52 | 17 | * Re-organized the CMSIS folders and updated documentation. |
emilmont | 1:fdd22bb7aa52 | 18 | * |
emilmont | 1:fdd22bb7aa52 | 19 | * Version 1.0.2 2010/11/11 |
emilmont | 1:fdd22bb7aa52 | 20 | * Documentation updated. |
emilmont | 1:fdd22bb7aa52 | 21 | * |
emilmont | 1:fdd22bb7aa52 | 22 | * Version 1.0.1 2010/10/05 |
emilmont | 1:fdd22bb7aa52 | 23 | * Production release and review comments incorporated. |
emilmont | 1:fdd22bb7aa52 | 24 | * |
emilmont | 1:fdd22bb7aa52 | 25 | * Version 1.0.0 2010/09/20 |
emilmont | 1:fdd22bb7aa52 | 26 | * Production release and review comments incorporated. |
emilmont | 1:fdd22bb7aa52 | 27 | * |
emilmont | 1:fdd22bb7aa52 | 28 | * Version 0.0.7 2010/06/10 |
emilmont | 1:fdd22bb7aa52 | 29 | * Misra-C changes done |
emilmont | 1:fdd22bb7aa52 | 30 | * -------------------------------------------------------------------- */ |
emilmont | 1:fdd22bb7aa52 | 31 | |
emilmont | 1:fdd22bb7aa52 | 32 | |
emilmont | 1:fdd22bb7aa52 | 33 | #include "arm_math.h" |
emilmont | 1:fdd22bb7aa52 | 34 | |
emilmont | 1:fdd22bb7aa52 | 35 | #ifndef MATH_HELPER_H |
emilmont | 1:fdd22bb7aa52 | 36 | #define MATH_HELPER_H |
emilmont | 1:fdd22bb7aa52 | 37 | |
emilmont | 1:fdd22bb7aa52 | 38 | #ifdef __cplusplus |
emilmont | 1:fdd22bb7aa52 | 39 | extern "C" |
emilmont | 1:fdd22bb7aa52 | 40 | { |
emilmont | 1:fdd22bb7aa52 | 41 | #endif |
emilmont | 1:fdd22bb7aa52 | 42 | |
emilmont | 1:fdd22bb7aa52 | 43 | float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize); |
emilmont | 1:fdd22bb7aa52 | 44 | void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 45 | void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
emilmont | 1:fdd22bb7aa52 | 46 | void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
emilmont | 1:fdd22bb7aa52 | 47 | void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 48 | void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 49 | void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 50 | void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 51 | void arm_clip_f32(float *pIn, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 52 | uint32_t arm_calc_guard_bits(uint32_t num_adds); |
emilmont | 1:fdd22bb7aa52 | 53 | void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits); |
emilmont | 1:fdd22bb7aa52 | 54 | uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 55 | uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples); |
emilmont | 1:fdd22bb7aa52 | 56 | uint32_t arm_calc_2pow(uint32_t guard_bits); |
emilmont | 1:fdd22bb7aa52 | 57 | |
emilmont | 1:fdd22bb7aa52 | 58 | #ifdef __cplusplus |
emilmont | 1:fdd22bb7aa52 | 59 | } |
emilmont | 1:fdd22bb7aa52 | 60 | #endif |
emilmont | 1:fdd22bb7aa52 | 61 | |
emilmont | 1:fdd22bb7aa52 | 62 | #endif |
emilmont | 1:fdd22bb7aa52 | 63 |