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flt_rounds.S revision 1.6 
      1 /*	$NetBSD: flt_rounds.S,v 1.6 1999/08/23 08:45:09 kleink Exp $	*/
      2 
      3 /*
      4  * Written by J.T. Conklin, Apr 4, 1995
      5  * Public domain.
      6  */
      7 
      8 #include <machine/asm.h>
      9 
     10 	.text
     11 	_ALIGN_TEXT
     12 _map:
     13 	.byte 1		/* round to nearest */
     14 	.byte 3		/* round to negative infinity */
     15 	.byte 2		/* round to positive infinity */
     16 	.byte 0		/* round to zero */
     17 
     18 ENTRY(__flt_rounds)
     19 	subl $4,%esp
     20 	fnstcw (%esp)
     21 	movl (%esp),%eax
     22 	shrl $10,%eax
     23 	andl $3,%eax
     24 #ifdef PIC
     25 	PIC_PROLOGUE
     26 	leal PIC_GOTOFF(_map),%ecx
     27 	PIC_EPILOGUE
     28 	movb (%ecx,%eax,1),%al
     29 #else
     30 	movb _map(,%eax,1),%al
     31 #endif
     32 	addl $4,%esp
     33 	ret
     34