2005-04-16 21:12:55 +00:00
|
|
|
/*
|
|
|
|
|
* Based on code written by J.T. Conklin <jtc@NetBSD.org>.
|
|
|
|
|
* Public domain.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include <machine/asm.h>
|
|
|
|
|
__FBSDID("$FreeBSD$")
|
|
|
|
|
|
|
|
|
|
ENTRY(truncf)
|
|
|
|
|
pushl %ebp
|
|
|
|
|
movl %esp,%ebp
|
|
|
|
|
subl $8,%esp
|
|
|
|
|
|
2005-05-06 15:44:20 +00:00
|
|
|
fstcw -4(%ebp) /* store fpu control word */
|
|
|
|
|
movw -4(%ebp),%dx
|
2005-04-16 21:12:55 +00:00
|
|
|
orw $0x0c00,%dx /* round towards -oo */
|
2005-05-06 15:44:20 +00:00
|
|
|
movw %dx,-8(%ebp)
|
|
|
|
|
fldcw -8(%ebp) /* load modfied control word */
|
2005-04-16 21:12:55 +00:00
|
|
|
|
|
|
|
|
flds 8(%ebp) /* round */
|
|
|
|
|
frndint
|
|
|
|
|
|
2005-05-06 15:44:20 +00:00
|
|
|
fldcw -4(%ebp) /* restore original control word */
|
2005-04-16 21:12:55 +00:00
|
|
|
|
|
|
|
|
leave
|
|
|
|
|
ret
|
2009-05-25 14:37:10 +00:00
|
|
|
END(truncf)
|
2011-01-07 16:13:12 +00:00
|
|
|
|
|
|
|
|
.section .note.GNU-stack,"",%progbits
|
