/****************************************************************************** * @file arm_math_types_f16.h * @brief Public header file for f16 function of the CMSIS DSP Library * @version V1.10.0 * @date 08 July 2021 * Target Processor: Cortex-M and Cortex-A cores ******************************************************************************/ /* * Copyright (c) 2010-2021 Arm Limited or its affiliates. All rights reserved. * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the License); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef ARM_MATH_TYPES_F16_H #define ARM_MATH_TYPES_F16_H #include "arm_math_types.h" #ifdef __cplusplus extern "C" { #endif #if !defined( __CC_ARM ) /** * @brief 16-bit floating-point type definition. * This is already defined in arm_mve.h * * This is not fully supported on ARM AC5. */ /* Check if the type __fp16 is available. If it is not available, f16 version of the kernels won't be built. */ #if defined(__ARM_FEATURE_MVE) && (__ARM_FEATURE_MVE & 2) /* When Vector float16, this flag is always defined and can't be disabled */ #define ARM_FLOAT16_SUPPORTED #else #if !defined(DISABLEFLOAT16) #if defined(__ARM_FP16_FORMAT_IEEE) || defined(__ARM_FP16_FORMAT_ALTERNATIVE) typedef __fp16 float16_t; #define ARM_FLOAT16_SUPPORTED #endif #endif #endif #if defined(ARM_MATH_NEON) || (defined(ARM_MATH_MVEF) && !defined(ARM_MATH_AUTOVECTORIZE)) /* floating point vector*/ #if defined(ARM_MATH_MVE_FLOAT16) || defined(ARM_MATH_NEON_FLOAT16) /** * @brief 16-bit floating-point 128-bit vector data type */ typedef __ALIGNED(2) float16x8_t f16x8_t; /** * @brief 16-bit floating-point 128-bit vector pair data type */ typedef float16x8x2_t f16x8x2_t; /** * @brief 16-bit floating-point 128-bit vector quadruplet data type */ typedef float16x8x4_t f16x8x4_t; /** * @brief 16-bit ubiquitous 128-bit vector data type */ typedef union _any16x8_t { float16x8_t f; int16x8_t i; } any16x8_t; #endif #endif #if defined(ARM_MATH_NEON) #if defined(ARM_MATH_NEON_FLOAT16) /** * @brief 16-bit float 64-bit vector data type. */ typedef __ALIGNED(2) float16x4_t f16x4_t; /** * @brief 16-bit floating-point 128-bit vector triplet data type */ typedef float16x8x3_t f16x8x3_t; /** * @brief 16-bit floating-point 64-bit vector pair data type */ typedef float16x4x2_t f16x4x2_t; /** * @brief 16-bit floating-point 64-bit vector triplet data type */ typedef float16x4x3_t f16x4x3_t; /** * @brief 16-bit floating-point 64-bit vector quadruplet data type */ typedef float16x4x4_t f16x4x4_t; /** * @brief 16-bit ubiquitous 64-bit vector data type */ typedef union _any16x4_t { float16x4_t f; int16x4_t i; } any16x4_t; #endif #endif #if defined(ARM_FLOAT16_SUPPORTED) #if defined(__ICCARM__) #define F16INFINITY ((float16_t) INFINITY) #else #define F16INFINITY ((float16_t)__builtin_inf()) #endif #define F16_MAX ((float16_t)__FLT16_MAX__) #define F16_MIN (-(_Float16)__FLT16_MAX__) #define F16_ABSMAX ((float16_t)__FLT16_MAX__) #define F16_ABSMIN ((float16_t)0.0f16) #endif /* ARM_FLOAT16_SUPPORTED*/ #endif /* !defined( __CC_ARM ) */ #ifdef __cplusplus } #endif #endif /* _ARM_MATH_F16_H */