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 ****************************************************************************************/
33 ------------------------------------------------------------------------------
36 This file contains all the constant definitions and prototype definitions
37 needed by the L_add function.
39 ------------------------------------------------------------------------------
42 /*----------------------------------------------------------------------------
43 ; CONTINUE ONLY IF NOT ALREADY DEFINED
44 ----------------------------------------------------------------------------*/
48 /*----------------------------------------------------------------------------
50 ----------------------------------------------------------------------------*/
51 #include "basicop_malloc.h"
53 /*--------------------------------------------------------------------------*/
59 /*----------------------------------------------------------------------------
61 ; Define module specific macros here
62 ----------------------------------------------------------------------------*/
64 /*----------------------------------------------------------------------------
66 ; Include all pre-processor statements here.
67 ----------------------------------------------------------------------------*/
69 /*----------------------------------------------------------------------------
70 ; EXTERNAL VARIABLES REFERENCES
71 ; Declare variables used in this module but defined elsewhere
72 ----------------------------------------------------------------------------*/
74 /*----------------------------------------------------------------------------
76 ----------------------------------------------------------------------------*/
78 /*----------------------------------------------------------------------------
79 ; ENUMERATED TYPEDEF'S
80 ----------------------------------------------------------------------------*/
82 /*----------------------------------------------------------------------------
83 ; STRUCTURES TYPEDEF'S
84 ----------------------------------------------------------------------------*/
86 /*----------------------------------------------------------------------------
87 ; GLOBAL FUNCTION DEFINITIONS
88 ; Function Prototype declaration
89 ----------------------------------------------------------------------------*/
90 #if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
92 __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
96 OSCL_UNUSED_ARG(pOverflow);
99 QADD result, L_var1, L_var2
104 #elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
106 __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
108 register Word32 ra = L_var1;
109 register Word32 rb = L_var2;
112 OSCL_UNUSED_ARG(pOverflow);
114 asm volatile("qadd %0, %1, %2"
122 #else /* C EQUIVALENT */
125 static inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
129 L_sum = L_var1 + L_var2;
131 if ((L_var1 ^ L_var2) >= 0)
133 if ((L_sum ^ L_var1) < 0)
135 L_sum = (L_var1 < 0) ? MIN_32 : MAX_32;
145 /*----------------------------------------------------------------------------
147 ----------------------------------------------------------------------------*/
152 #endif /* _L_ADD_H_ */