Owen Edwards / TwosComplement

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Embed: (wiki syntax)

« Back to documentation index

Show/hide line numbers SignExtend.cpp Source File

SignExtend.cpp

00001 #include "mbed.h"
00002 #include "assert.h"
00003 
00004 int SignExtend( int value, const int bit_width )
00005 {
00006     assert( ( bit_width > 1) && ( bit_width < (8*sizeof(int)) ) );
00007 
00008     value &= ( (1<<(bit_width)) - 1 ); /* Clear out any extra MSB data */
00009 
00010     if ( ( value & ( 1 << (bit_width-1) ) ) != 0 )
00011     {
00012         /* value IS negative */
00013         value -= (1<<bit_width);
00014     }
00015 
00016     return value;
00017 }
Generated on Tue Jul 12 2022 16:29:02 by  doxygen 1.7.2