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 314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Filename: /audio/gsm_amr/c/include/mpy_32.h 324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber REVISION HISTORY 354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Updated function prototype declaration to reflect new interface. 374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber A pointer to overflow flag is passed into the function. Updated 384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber template. 394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Moved _cplusplus #ifdef after Include section. 414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: Updated the function to include ARM and Linux-ARM assembly 434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber instructions. 444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Description: 464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber INCLUDE DESCRIPTION 494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber This file contains all the constant definitions and prototype definitions 514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber needed by the Mpy_32 function. 524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber------------------------------------------------------------------------------ 544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber*/ 554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; CONTINUE ONLY IF NOT ALREADY DEFINED 584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifndef MPY_32_H 604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#define MPY_32_H 614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*---------------------------------------------------------------------------- 634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber; INCLUDES 644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber----------------------------------------------------------------------------*/ 654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#include "basicop_malloc.h" 664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber/*--------------------------------------------------------------------------*/ 684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huberextern "C" 704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber{ 714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; MACROS 754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define module specific macros here 764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; DEFINES 814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Include all pre-processor statements here. 824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; EXTERNAL VARIABLES REFERENCES 864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Declare variables used in this module but defined elsewhere 874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; SIMPLE TYPEDEF'S 914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; ENUMERATED TYPEDEF'S 954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; STRUCTURES TYPEDEF'S 994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; GLOBAL FUNCTION DEFINITIONS 1034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Function Prototype declaration 1044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/ 1064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __inline Word32 Mpy_32(Word16 L_var1_hi, 1084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var1_lo, 1094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_hi, 1104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_lo, 1114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow) 1124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Define all local variables 1164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_product; 1184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_sum; 1194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 product32; 1204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber OSCL_UNUSED_ARG(pOverflow); 1224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 1234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Function body here 1244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 1254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* L_product = L_mult (L_var1_hi, L_var2_hi, pOverflow);*/ 1264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {SMULBB L_product, L_var1_hi, L_var2_hi} 1284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {QDADD L_product, 0, L_product} 1294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {SMULBB product32, L_var1_hi, L_var2_lo} 1304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber product32 >>= 15; 1314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {QDADD L_sum, L_product, product32} 1324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_product = L_sum; 1334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {SMULBB product32, L_var1_lo, L_var2_hi} 1344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber product32 >>= 15; 1354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __asm {QDADD L_sum, L_product, product32} 1364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return (L_sum); 1374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 1384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/ 1404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber static inline Word32 Mpy_32(Word16 L_var1_hi, 1424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var1_lo, 1434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_hi, 1444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_lo, 1454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow) 1464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 1474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 product32; 1484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 L_sum; 1494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 L_product, result; 1504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 ra = L_var1_hi; 1514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 rb = L_var1_lo; 1524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 rc = L_var2_hi; 1534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber register Word32 rd = L_var2_lo; 1544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber OSCL_UNUSED_ARG(pOverflow); 1584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("smulbb %0, %1, %2" 1604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(L_product) 1614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(ra), "r"(rc) 1624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("mov %0, #0" 1644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(result) 1654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("qdadd %0, %1, %2" 1684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(L_sum) 1694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(result), "r"(L_product) 1704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("smulbb %0, %1, %2" 1734f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(product32) 1744f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(ra), "r"(rd) 1754f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1764f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1774f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("mov %0, %1, ASR #15" 1784f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(ra) 1794f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(product32) 1804f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1814f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("qdadd %0, %1, %2" 1824f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(L_product) 1834f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(L_sum), "r"(ra) 1844f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1854f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1864f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("smulbb %0, %1, %2" 1874f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(product32) 1884f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(rb), "r"(rc) 1894f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1904f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1914f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("mov %0, %1, ASR #15" 1924f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(rb) 1934f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(product32) 1944f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 1954f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 1964f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber asm volatile("qdadd %0, %1, %2" 1974f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "=r"(L_sum) 1984f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber : "r"(L_product), "r"(rb) 1994f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ); 2004f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2014f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return (L_sum); 2024f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2034f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2044f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#else /* C_EQUIVALENT */ 2054f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2064f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber __inline Word32 Mpy_32(Word16 L_var1_hi, 2074f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var1_lo, 2084f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_hi, 2094f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word16 L_var2_lo, 2104f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Flag *pOverflow) 2114f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2124f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_product; 2134f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 L_sum; 2144f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber Word32 product32; 2154f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2164f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber OSCL_UNUSED_ARG(pOverflow); 2174f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_product = (Word32) L_var1_hi * L_var2_hi; 2184f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2194f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if (L_product != (Word32) 0x40000000L) 2204f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2214f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_product <<= 1; 2224f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2234f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber else 2244f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2254f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_product = MAX_32; 2264f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2274f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2284f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* result = mult (L_var1_hi, L_var2_lo, pOverflow); */ 2294f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber product32 = ((Word32) L_var1_hi * L_var2_lo) >> 15; 2304f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2314f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* L_product = L_mac (L_product, result, 1, pOverflow); */ 2324f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_sum = L_product + (product32 << 1); 2334f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2344f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((L_product ^ product32) > 0) 2354f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2364f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((L_sum ^ L_product) < 0) 2374f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2384f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_sum = (L_product < 0) ? MIN_32 : MAX_32; 2394f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2404f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2414f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2424f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_product = L_sum; 2434f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2444f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* result = mult (L_var1_lo, L_var2_hi, pOverflow); */ 2454f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber product32 = ((Word32) L_var1_lo * L_var2_hi) >> 15; 2464f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2474f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /* L_product = L_mac (L_product, result, 1, pOverflow); */ 2484f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_sum = L_product + (product32 << 1); 2494f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2504f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((L_product ^ product32) > 0) 2514f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2524f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber if ((L_sum ^ L_product) < 0) 2534f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber { 2544f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber L_sum = (L_product < 0) ? MIN_32 : MAX_32; 2554f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2564f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2574f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2584f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 2594f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; Return nothing or data or data pointer 2604f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 2614f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber return (L_sum); 2624f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber } 2634f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2644f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 2654f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber /*---------------------------------------------------------------------------- 2664f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ; END 2674f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber ----------------------------------------------------------------------------*/ 2684f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#ifdef __cplusplus 2694f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber} 2704f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif 2714f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber 2724f1efc098cb5791c3e9f483f2af84aef70d2d0a0Andreas Huber#endif /* _MPY_32_H_ */ 273