Diff: cmsis_dsp/BasicMathFunctions/arm_abs_q31.c

Revision:

3:7a284390b0ce

Parent:

2:da51fb522205

--- a/cmsis_dsp/BasicMathFunctions/arm_abs_q31.c	Thu May 30 17:10:11 2013 +0100
+++ b/cmsis_dsp/BasicMathFunctions/arm_abs_q31.c	Fri Nov 08 13:45:10 2013 +0000
@@ -1,8 +1,8 @@
 /* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
+* Copyright (C) 2010-2013 ARM Limited. All rights reserved.    
 *    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
+* $Date:        17. January 2013
+* $Revision: 	V1.4.1
 *    
 * Project: 	    CMSIS DSP Library    
 * Title:		arm_abs_q31.c    
@@ -11,26 +11,31 @@
 *    
 * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
 *  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated.    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
+* Redistribution and use in source and binary forms, with or without 
+* modification, are permitted provided that the following conditions
+* are met:
+*   - Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*   - Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in
+*     the documentation and/or other materials provided with the 
+*     distribution.
+*   - Neither the name of ARM LIMITED nor the names of its contributors
+*     may be used to endorse or promote products derived from this
+*     software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
+* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE. 
 * -------------------------------------------------------------------- */
 
 #include "arm_math.h"
@@ -66,7 +71,7 @@
   uint32_t blkCnt;                               /* loop counter */
   q31_t in;                                      /* Input value */
 
-#ifndef ARM_MATH_CM0
+#ifndef ARM_MATH_CM0_FAMILY
 
   /* Run the below code for Cortex-M4 and Cortex-M3 */
   q31_t in1, in2, in3, in4;
@@ -85,10 +90,10 @@
     in3 = *pSrc++;
     in4 = *pSrc++;
 
-    *pDst++ = (in1 > 0) ? in1 : __QSUB(0, in1);
-    *pDst++ = (in2 > 0) ? in2 : __QSUB(0, in2);
-    *pDst++ = (in3 > 0) ? in3 : __QSUB(0, in3);
-    *pDst++ = (in4 > 0) ? in4 : __QSUB(0, in4);
+    *pDst++ = (in1 > 0) ? in1 : (q31_t)__QSUB(0, in1);
+    *pDst++ = (in2 > 0) ? in2 : (q31_t)__QSUB(0, in2);
+    *pDst++ = (in3 > 0) ? in3 : (q31_t)__QSUB(0, in3);
+    *pDst++ = (in4 > 0) ? in4 : (q31_t)__QSUB(0, in4);
 
     /* Decrement the loop counter */
     blkCnt--;
@@ -105,14 +110,14 @@
   /* Initialize blkCnt with number of samples */
   blkCnt = blockSize;
 
-#endif /*   #ifndef ARM_MATH_CM0   */
+#endif /*   #ifndef ARM_MATH_CM0_FAMILY   */
 
   while(blkCnt > 0u)
   {
     /* C = |A| */
     /* Calculate absolute value of the input (if -1 then saturated to 0x7fffffff) and then store the results in the destination buffer. */
     in = *pSrc++;
-    *pDst++ = (in > 0) ? in : ((in == 0x80000000) ? 0x7fffffff : -in);
+    *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
 
     /* Decrement the loop counter */
     blkCnt--;