1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 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_mac function.
38 ------------------------------------------------------------------------------
41 /*----------------------------------------------------------------------------
42 ; CONTINUE ONLY IF NOT ALREADY DEFINED
43 ----------------------------------------------------------------------------*/
47 /*----------------------------------------------------------------------------
49 ----------------------------------------------------------------------------*/
50 #include "basicop_malloc.h"
52 /*--------------------------------------------------------------------------*/
58 /*----------------------------------------------------------------------------
60 ; Define module specific macros here
61 ----------------------------------------------------------------------------*/
63 /*----------------------------------------------------------------------------
65 ; Include all pre-processor statements here.
66 ----------------------------------------------------------------------------*/
68 /*----------------------------------------------------------------------------
69 ; EXTERNAL VARIABLES REFERENCES
70 ; Declare variables used in this module but defined elsewhere
71 ----------------------------------------------------------------------------*/
73 /*----------------------------------------------------------------------------
75 ----------------------------------------------------------------------------*/
77 /*----------------------------------------------------------------------------
78 ; ENUMERATED TYPEDEF'S
79 ----------------------------------------------------------------------------*/
81 /*----------------------------------------------------------------------------
82 ; STRUCTURES TYPEDEF'S
83 ----------------------------------------------------------------------------*/
85 /*----------------------------------------------------------------------------
86 ; GLOBAL FUNCTION DEFINITIONS
87 ; Function Prototype declaration
88 ----------------------------------------------------------------------------*/
89 #if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
91 __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
96 OSCL_UNUSED_ARG(pOverflow);
98 __asm {SMULBB result, var1, var2}
99 __asm {QDADD L_sum, L_var3, result}
103 #elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
105 static inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
107 register Word32 ra = L_var3;
108 register Word32 rb = var1;
109 register Word32 rc = var2;
112 OSCL_UNUSED_ARG(pOverflow);
114 asm volatile("smulbb %0, %1, %2"
119 asm volatile("qdadd %0, %1, %2"
121 : "r"(ra), "r"(result)
127 #else /* C_EQUIVALENT */
129 __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
133 result = (Word32) var1 * var2;
134 if (result != (Word32) 0x40000000L)
136 L_sum = (result << 1) + L_var3;
138 /* Check if L_sum and L_var_3 share the same sign */
139 if ((L_var3 ^ result) > 0)
141 if ((L_sum ^ L_var3) < 0)
143 L_sum = (L_var3 < 0) ? MIN_32 : MAX_32;
157 /*----------------------------------------------------------------------------
159 ----------------------------------------------------------------------------*/
164 #endif /* _L_MAC_H_ */