1a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* ------------------------------------------------------------------ 2a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 4a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * you may not use this file except in compliance with the License. 6a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * You may obtain a copy of the License at 7a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 8a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * 10a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * Unless required by applicable law or agreed to in writing, software 11a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * express or implied. 14a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * See the License for the specific language governing permissions 15a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * and limitations under the License. 16a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber * ------------------------------------------------------------------- 17a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber */ 18a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/**************************************************************************************** 19a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPortions of this file are derived from the following 3GPP standard: 20a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 21a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 3GPP TS 26.073 22a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Available from http://www.3gpp.org 24a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 25a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26a30d40083856cb4edd225faf8b488fab156e5976Andreas HuberPermission to distribute, modify and use this file under the standard license 27a30d40083856cb4edd225faf8b488fab156e5976Andreas Huberterms listed above has been obtained from the copyright holder. 28a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber****************************************************************************************/ 29a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/* 30a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 31a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Filename: /audio/gsm_amr/c/include/l_mult.h 32a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 33a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 34a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber REVISION HISTORY 35a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 36a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Created separate header file for L_mult function. 37a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 38a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Updated function prototype declaration to reflect new interface. 39a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber A pointer to overflow flag is passed into the function. Updated 40a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber template. 41a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 42a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 43a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 44a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: Providing support for ARM and Linux-ARM assembly instructions. 45a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 46a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Who: Date: 47a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Description: 48a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 49a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 50a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber INCLUDE DESCRIPTION 51a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 52a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber This file contains all the constant definitions and prototype definitions 53a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber needed by the L_mult function. 54a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 55a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber------------------------------------------------------------------------------ 56a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber*/ 57a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 58a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 59a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; CONTINUE ONLY IF NOT ALREADY DEFINED 60a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 61a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#ifndef L_MULT_H 62a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#define L_MULT_H 63a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 64a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*---------------------------------------------------------------------------- 65a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber; INCLUDES 66a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber----------------------------------------------------------------------------*/ 67a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#include "basicop_malloc.h" 68a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 69a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber/*--------------------------------------------------------------------------*/ 70a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#ifdef __cplusplus 71a30d40083856cb4edd225faf8b488fab156e5976Andreas Huberextern "C" 72a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber{ 73a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif 74a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 75a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 76a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; MACROS 77a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; Define module specific macros here 78a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 79a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 80a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 81a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; DEFINES 82a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; Include all pre-processor statements here. 83a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 84a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 85a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 86a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; EXTERNAL VARIABLES REFERENCES 87a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; Declare variables used in this module but defined elsewhere 88a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 89a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 90a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 91a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; SIMPLE TYPEDEF'S 92a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 93a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 94a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 95a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; ENUMERATED TYPEDEF'S 96a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 97a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 98a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 99a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; STRUCTURES TYPEDEF'S 100a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 101a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 102a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 103a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 104a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; Function Prototype declaration 105a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 106a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 107a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/ 108a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 109a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow) 110a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 111a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word32 result; 112a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word32 product; 113a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 114a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber OSCL_UNUSED_ARG(pOverflow); 115a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 116a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber __asm 117a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 118a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber SMULBB product, var1, var2 119a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber QADD result, product, product 120a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 121a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 122a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber return (result); 123a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 124a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 125a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/ 126a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 127a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow) 128a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 129a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber register Word32 ra = var1; 130a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber register Word32 rb = var2; 131a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word32 result; 132a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber Word32 product; 133a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 134a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber OSCL_UNUSED_ARG(pOverflow); 135a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 136a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber asm volatile("smulbb %0, %1, %2" 137a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber : "=r"(product) 138a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber : "r"(ra), "r"(rb) 139a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ); 140a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 141a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber asm volatile("qadd %0, %1, %2" 142a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber : "=r"(result) 143a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber : "r"(product), "r"(product) 144a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ); 145a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 146a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber return(result); 147a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 148a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 149a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#else /* C EQUIVALENT */ 150a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 151a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber static inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow) 152a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 153a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber register Word32 L_product; 154a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 155a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_product = (Word32) var1 * var2; 156a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 157a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber if (L_product != (Word32) 0x40000000L) 158a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 159a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_product <<= 1; /* Multiply by 2 */ 160a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 161a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber else 162a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber { 163a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber *pOverflow = 1; 164a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber L_product = MAX_32; 165a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 166a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 167a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber return (L_product); 168a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber } 169a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif 170a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber /*---------------------------------------------------------------------------- 171a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ; END 172a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber ----------------------------------------------------------------------------*/ 173a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#ifdef __cplusplus 174a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber} 175a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif 176a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 177a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber#endif /* _L_MULT_H */ 178a30d40083856cb4edd225faf8b488fab156e5976Andreas Huber 179