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fpgetmask.S revision 1.3 
      1  1.3     fvdl /*	$NetBSD: fpgetmask.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $	*/
      2  1.1     fvdl 
      3  1.1     fvdl /*
      4  1.1     fvdl  * Written by J.T. Conklin, Apr 4, 1995
      5  1.1     fvdl  * Public domain.
      6  1.1     fvdl  */
      7  1.1     fvdl 
      8  1.1     fvdl #include <machine/asm.h>
      9  1.3     fvdl 
     10  1.3     fvdl /*
     11  1.3     fvdl  * XXX only read x87 control word here. If an application only
     12  1.3     fvdl  * uses the fp* interface to manipulate FP bits, it should
     13  1.3     fvdl  * always remain in sync with the SSE mxcsr register.
     14  1.3     fvdl  */
     15  1.1     fvdl 
     16  1.2  thorpej #ifdef WEAK_ALIAS
     17  1.2  thorpej WEAK_ALIAS(fpgetmask, _fpgetmask)
     18  1.2  thorpej ENTRY(_fpgetmask)
     19  1.2  thorpej #else
     20  1.1     fvdl ENTRY(fpgetmask)
     21  1.2  thorpej #endif
     22  1.1     fvdl 	fnstcw -4(%rsp)
     23  1.1     fvdl 	movl -4(%rsp),%eax
     24  1.1     fvdl 	notl %eax
     25  1.1     fvdl 	andl $63,%eax
     26  1.1     fvdl 	ret
     27