1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2010 PacketVideo
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
18 /****************************************************************************************
19 Portions of this file are derived from the following 3GPP standard:
22 ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
23 Available from http://www.3gpp.org
25 (C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
26 Permission to distribute, modify and use this file under the standard license
27 terms listed above has been obtained from the copyright holder.
28 ****************************************************************************************/
32 ------------------------------------------------------------------------------
35 This file contains all the constant definitions and prototype definitions
36 needed by the L_msu function.
38 ------------------------------------------------------------------------------
41 /*----------------------------------------------------------------------------
42 ; CONTINUE ONLY IF NOT ALREADY DEFINED
43 ----------------------------------------------------------------------------*/
47 /*----------------------------------------------------------------------------
49 ----------------------------------------------------------------------------*/
50 #include "basicop_malloc.h"
54 /*--------------------------------------------------------------------------*/
60 /*----------------------------------------------------------------------------
62 ; Define module specific macros here
63 ----------------------------------------------------------------------------*/
65 /*----------------------------------------------------------------------------
67 ; Include all pre-processor statements here.
68 ----------------------------------------------------------------------------*/
70 /*----------------------------------------------------------------------------
71 ; EXTERNAL VARIABLES REFERENCES
72 ; Declare variables used in this module but defined elsewhere
73 ----------------------------------------------------------------------------*/
75 /*----------------------------------------------------------------------------
77 ----------------------------------------------------------------------------*/
79 /*----------------------------------------------------------------------------
80 ; ENUMERATED TYPEDEF'S
81 ----------------------------------------------------------------------------*/
83 /*----------------------------------------------------------------------------
84 ; STRUCTURES TYPEDEF'S
85 ----------------------------------------------------------------------------*/
87 /*----------------------------------------------------------------------------
88 ; GLOBAL FUNCTION DEFINITIONS
89 ; Function Prototype declaration
90 ----------------------------------------------------------------------------*/
91 #if ((PV_CPU_ARCH_VERSION >=5) && (PV_COMPILER == EPV_ARM_GNUC))/* Instructions for ARM-linux cross-compiler*/
93 __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
95 register Word32 ra = L_var3;
96 register Word32 rb = var1;
97 register Word32 rc = var2;
101 OSCL_UNUSED_ARG(pOverflow);
103 asm volatile("smulbb %0, %1, %2"
108 asm volatile("qdsub %0, %1, %2"
110 : "r"(ra), "r"(product)
116 #else /* C EQUIVALENT */
118 static inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
122 result = L_mult(var1, var2, pOverflow);
123 result = L_sub(L_var3, result, pOverflow);
129 /*----------------------------------------------------------------------------
131 ----------------------------------------------------------------------------*/
137 #endif /* _L_MSU_H_ */