Changeset 869

Timestamp:

Nov 23, 2003, 12:20:16 AM (22 years ago)

Author:

bird

Message:

#568: Added macros for preserving the FPU control word.

File:

• trunk/src/emx/include/os2emx.h (modified) (1 diff, 1 prop)

trunk/src/emx/include/os2emx.h

@@ -13163 +13163 @@
 #endif /* INCL_FSMACROS */
 
+#if defined(INCL_FPCWMACROS)
+
+#ifndef FSCW_DISABLED
+#define FSCW_VAR()        volatile unsigned __fpcw__;
+#define FSCW_SAVE()       __asm__ __volatile__ ("fnstcw %0;" : : "m" (__fpcw__) )
+#define FSCW_RESTORE()    __asm__ __volatile__ ("fldcw  %0;" : : "m" (__fpcw__) )
+#else
+#define FSCW_VAR()
+#define FSCW_SAVE()       do { } while(0)
+#define FSCW_RESTORE()    do { } while(0)
+#endif
+
+#endif /* INCL_FPCWMACROS */
+
+
 /* ------------------------------ THE END --------------------------------- */