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      1 /*	$NetBSD: flt_rounds.S,v 1.10 2014/05/23 02:34:19 uebayasi Exp $	*/
      2 
      3 #include <machine/asm.h>
      4 
      5 /*
      6  * 00 0 round to zero
      7  * 01 1 round to nearest
      8  * 10 2 round to positive infinity
      9  * 11 3 round to negative infinity
     10  */
     11 	.text
     12 	_ALIGN_TEXT
     13 ENTRY(__flt_rounds)
     14 	fnstcw	-4(%esp)
     15 	movl	-4(%esp), %ecx
     16 	shrl	$9, %ecx
     17 	andl	$6, %ecx
     18 	movl	$0x2d, %eax	/* 0x2d = 00.10.11.01 */
     19 	sarl	%cl, %eax	/* 0,1,2,3 -> 1,3,2,0 */
     20 	andl	$3, %eax
     21 	ret
     22 END(__flt_rounds)
     23