1b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* ------------------------------------------------------------------ 2b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Copyright (C) 1998-2009 PacketVideo 3b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 4b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * you may not use this file except in compliance with the License. 6b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * You may obtain a copy of the License at 7b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 8b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * 10b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * Unless required by applicable law or agreed to in writing, software 11b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * express or implied. 14b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * See the License for the specific language governing permissions 15b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * and limitations under the License. 16b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber * ------------------------------------------------------------------- 17b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber */ 18b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/**************************************************************************************** 19b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPortions of this file are derived from the following 3GPP standard: 20b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 21b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 3GPP TS 26.073 22b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 23b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Available from http://www.3gpp.org 24b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 25b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberPermission to distribute, modify and use this file under the standard license 27b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huberterms listed above has been obtained from the copyright holder. 28b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber****************************************************************************************/ 29b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/* 30b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 31b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber INPUT AND OUTPUT DEFINITIONS 32b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 33b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Inputs: 34b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber L_var1 = 32 bit long signed integer (Word32) whose value falls 35b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff. 36b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 37b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Local Stores/Buffers/Pointers Needed: 38b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 39b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 40b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Global Stores/Buffers/Pointers Needed: 41b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 42b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 43b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Outputs: 44b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber L_var1 = 32-bit negation of input 45b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 46b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Pointers and Buffers Modified: 47b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 48b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 49b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Local Stores Modified: 50b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 51b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 52b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Global Stores Modified: 53b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 54b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 55b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 56b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber FUNCTION DESCRIPTION 57b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 58b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber This function negates the 32 bit variable, L_var1, with saturation; saturate 59b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber in the case where input is -2147483648 (0x8000 0000). 60b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 61b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 62b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REQUIREMENTS 63b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 64b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber None 65b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 66b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 67b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber REFERENCES 68b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 69b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber [1] basicop2.c, ETS Version 2.0.0, February 8, 1999 70b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 71b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 72b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PSEUDO-CODE 73b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 74b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberWord32 L_negate (Word32 L_var1) 75b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 76b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber Word32 L_var_out; 77b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 78b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber L_var_out = (L_var1 == MIN_32) ? MAX_32 : -L_var1; 79b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#if (WMOPS) 80b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber multiCounter[currCounter].L_negate++; 81b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#endif 82b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber return (L_var_out); 83b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 84b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 85b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 86b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber RESOURCES USED 87b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber When the code is written for a specific target processor the 88b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber the resources used should be documented below. 89b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 90b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber STACK USAGE: [stack count for this module] + [variable to represent 91b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber stack usage for each subroutine called] 92b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 93b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber where: [stack usage variable] = stack usage for [subroutine 94b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber name] (see [filename].ext) 95b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 96b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber DATA MEMORY USED: x words 97b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 98b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber PROGRAM MEMORY USED: x words 99b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 100b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber CLOCK CYCLES: [cycle count equation for this module] + [variable 101b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber used to represent cycle count for each subroutine 102b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber called] 103b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 104b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber where: [cycle count variable] = cycle count for [subroutine 105b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber name] (see [filename].ext) 106b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 107b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber------------------------------------------------------------------------------ 108b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber*/ 109b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 110b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 111b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 112b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; INCLUDES 113b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 114b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber#include "basic_op.h" 115b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 116b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 117b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; MACROS 118b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Define module specific macros here 119b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 120b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 121b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 122b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; DEFINES 123b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Include all pre-processor statements here. Include conditional 124b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; compile variables also. 125b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 126b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 127b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 128b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; LOCAL FUNCTION DEFINITIONS 129b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Function Prototype declaration 130b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 131b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 132b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 133b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 134b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Variable declaration - defined here and used outside this module 135b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 136b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 137b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 138b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; EXTERNAL FUNCTION REFERENCES 139b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Declare functions defined elsewhere and referenced in this module 140b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 141b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 142b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 143b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 144b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; Declare variables used in this module but defined elsewhere 145b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 146b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 147b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber/*---------------------------------------------------------------------------- 148b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber; FUNCTION CODE 149b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber----------------------------------------------------------------------------*/ 150b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas HuberWord32 L_negate(register Word32 L_var1) 151b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber{ 152b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 153b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Define all local variables 154b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 155b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 156b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 157b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Function body here 158b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 159b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber L_var1 = (L_var1 == MIN_32) ? MAX_32 : -L_var1; 160b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 161b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber /*---------------------------------------------------------------------------- 162b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ; Return nothing or data or data pointer 163b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber ----------------------------------------------------------------------------*/ 164b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber return (L_var1); 165b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber} 166b841f14f8e51f2365945281fbfa54ef6a1b1b5a6Andreas Huber 167