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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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/arm_common_tables.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: 11. November 2010 |
emilmont | 1:fdd22bb7aa52 | 5 | * $Revision: V1.0.2 |
emilmont | 1:fdd22bb7aa52 | 6 | * |
emilmont | 1:fdd22bb7aa52 | 7 | * Project: CMSIS DSP Library |
emilmont | 1:fdd22bb7aa52 | 8 | * Title: arm_common_tables.h |
emilmont | 1:fdd22bb7aa52 | 9 | * |
emilmont | 1:fdd22bb7aa52 | 10 | * Description: This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions |
emilmont | 1:fdd22bb7aa52 | 11 | * |
emilmont | 1:fdd22bb7aa52 | 12 | * Target Processor: Cortex-M4/Cortex-M3 |
emilmont | 1:fdd22bb7aa52 | 13 | * |
emilmont | 1:fdd22bb7aa52 | 14 | * Version 1.0.2 2010/11/11 |
emilmont | 1:fdd22bb7aa52 | 15 | * Documentation updated. |
emilmont | 1:fdd22bb7aa52 | 16 | * |
emilmont | 1:fdd22bb7aa52 | 17 | * Version 1.0.1 2010/10/05 |
emilmont | 1:fdd22bb7aa52 | 18 | * Production release and review comments incorporated. |
emilmont | 1:fdd22bb7aa52 | 19 | * |
emilmont | 1:fdd22bb7aa52 | 20 | * Version 1.0.0 2010/09/20 |
emilmont | 1:fdd22bb7aa52 | 21 | * Production release and review comments incorporated. |
emilmont | 1:fdd22bb7aa52 | 22 | * -------------------------------------------------------------------- */ |
emilmont | 1:fdd22bb7aa52 | 23 | |
emilmont | 1:fdd22bb7aa52 | 24 | #ifndef _ARM_COMMON_TABLES_H |
emilmont | 1:fdd22bb7aa52 | 25 | #define _ARM_COMMON_TABLES_H |
emilmont | 1:fdd22bb7aa52 | 26 | |
emilmont | 1:fdd22bb7aa52 | 27 | #include "arm_math.h" |
emilmont | 1:fdd22bb7aa52 | 28 | |
emilmont | 1:fdd22bb7aa52 | 29 | extern const uint16_t armBitRevTable[1024]; |
emilmont | 1:fdd22bb7aa52 | 30 | extern const q15_t armRecipTableQ15[64]; |
emilmont | 1:fdd22bb7aa52 | 31 | extern const q31_t armRecipTableQ31[64]; |
emilmont | 1:fdd22bb7aa52 | 32 | extern const q31_t realCoefAQ31[1024]; |
emilmont | 1:fdd22bb7aa52 | 33 | extern const q31_t realCoefBQ31[1024]; |
emilmont | 1:fdd22bb7aa52 | 34 | extern const float32_t twiddleCoef[6144]; |
emilmont | 1:fdd22bb7aa52 | 35 | extern const q31_t twiddleCoefQ31[6144]; |
emilmont | 1:fdd22bb7aa52 | 36 | extern const q15_t twiddleCoefQ15[6144]; |
emilmont | 1:fdd22bb7aa52 | 37 | |
emilmont | 1:fdd22bb7aa52 | 38 | #endif /* ARM_COMMON_TABLES_H */ |