geometry/x87control.h Source File

00001 #ifndef x87control_HEADER
00002 #define x87control_HEADER
00003 
00004 /* This file is licensed under the Lesser GPL, version 2 or later.  */
00005 
00006 #ifdef HAVE_CONFIG_H
00007 # include <config.h>
00008 #endif
00009 
00010 #ifdef HAVE_X87_CONTROL_WORD
00011 /* Macros for accessing the x87 floating-point control word from the GNU C
00012  * Library, Contributed by Olaf Flebbe, Copyright Free Software Foundation */
00013 #define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (*&cw))
00014 #define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (*&cw))
00015 #endif
00016 
00017 #endif