14f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* ------------------------------------------------------------------ 24f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Copyright (C) 1998-2009 PacketVideo 34f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 44f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 54f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * you may not use this file except in compliance with the License. 64f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * You may obtain a copy of the License at 74f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 84f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 94f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * 104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * Unless required by applicable law or agreed to in writing, software 114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * express or implied. 144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * See the License for the specific language governing permissions 154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * and limitations under the License. 164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber * ------------------------------------------------------------------- 174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber */ 184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/**************************************************************************************** 194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPortions of this file are derived from the following 3GPP standard: 204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 3GPP TS 26.073 224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec 234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Available from http://www.3gpp.org 244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberPermission to distribute, modify and use this file under the standard license 274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberterms listed above has been obtained from the copyright holder. 284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber****************************************************************************************/ 294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/* 304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Pathname: ./gsm-amr/c/src/norm_l.c 314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Created separate file for the norm_l function. Sync'ed up 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber with the current template and fixed tabs. 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Updated module description to be the same as the equivalent 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber assembly file (norm_l.asm). 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Removed conditional code that updates WMOPS counter 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Made the following changes 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1. Unrolled the search loop to make four comparison per 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber pass, using only four iterations of the loop and saving 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber shifts cycles 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2. Updated header and copyright year 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 1. Support for ARM and Linux-ARM assembly instructions. 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Who: Date: 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INPUT AND OUTPUT DEFINITIONS 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Inputs: 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_var1 = 32 bit long signed integer (Word32) whose value falls 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber in the range : 0x8000 0000 <= var1 <= 0x7fff ffff. 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Stores/Buffers/Pointers Needed: 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Stores/Buffers/Pointers Needed: 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Outputs: 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out = number of left shifts need to normalize input (Word16) 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Pointers and Buffers Modified: 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Local Stores Modified: 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Global Stores Modified: 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber FUNCTION DESCRIPTION 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This function produces the number of left shifts needed to normalize the 32 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber bit variable L_var1 for positive values on the interval with minimum of 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 0x40000000 and maximum of 0x7fffffff, and for negative values on the interval 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber with minimum of 0x80000000 and maximum of 0xc0000000. Note that when L_var1 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber is equal to zero, the output var_out is set to zero. 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REQUIREMENTS 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber None 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REFERENCES 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber [1] basicop2.c, ETS Version 2.0.0, February 8, 1999 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PSEUDO-CODE 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberWord16 norm_l (Word32 L_var1) 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 var_out; 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_var1 == 0) 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out = 0; 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_var1 == (Word32) 0xffffffffL) 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out = 31; 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_var1 < 0) 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_var1 = ~L_var1; 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber for (var_out = 0; L_var1 < (Word32) 0x40000000L; var_out++) 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_var1 <<= 1; 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#if (WMOPS) 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber multiCounter[currCounter].norm_l++; 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return (var_out); 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber RESOURCES USED 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber When the code is written for a specific target processor the 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber the resources used should be documented below. 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber STACK USAGE: [stack count for this module] + [variable to represent 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber stack usage for each subroutine called] 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: [stack usage variable] = stack usage for [subroutine 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] (see [filename].ext) 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber DATA MEMORY USED: x words 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber PROGRAM MEMORY USED: x words 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber CLOCK CYCLES: [cycle count equation for this module] + [variable 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber used to represent cycle count for each subroutine 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber called] 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber where: [cycle count variable] = cycle count for [subroutine 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber name] (see [filename].ext) 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "basic_op.h" 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; MACROS 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Define module specific macros here 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; DEFINES 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Include all pre-processor statements here. Include conditional 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; compile variables also. 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL FUNCTION DEFINITIONS 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Function Prototype declaration 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; LOCAL STORE/BUFFER/POINTER DEFINITIONS 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Variable declaration - defined here and used outside this module 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL FUNCTION REFERENCES 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare functions defined elsewhere and referenced in this module 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; Declare variables used in this module but defined elsewhere 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; FUNCTION CODE 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) ) 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas HuberWord16 norm_l(register Word32 L_var1) 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define all local variables 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word16 var_out = 0; 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Function body here 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_var1) 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 y = L_var1 - (L_var1 < 0); 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_var1 = y ^(y >> 31); 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber while (!(0x40000000L & L_var1)) 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out++; 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((0x20000000L & L_var1)) 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber break; 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out++; 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((0x10000000L & L_var1)) 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber break; 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out++; 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((0x08000000L & L_var1)) 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber break; 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber var_out++; 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_var1 <<= 4; 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Return nothing or data or data pointer 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return (var_out); 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 248