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/*
* Public domain.
*/
#include <libm-alias-ldouble.h>
#include <machine/asm.h>
ENTRY(__ceill)
fldt 8(%rsp)
fnstenv -28(%rsp) /* store fpu environment */
/* We use here %edx although only the low 1 bits are defined.
But none of the operations should care and they are faster
than the 16 bit operations. */
movl $0x0800,%edx /* round towards +oo */
orl -28(%rsp),%edx
andl $0xfbff,%edx
movl %edx,-32(%rsp)
fldcw -32(%rsp) /* load modified control word */
frndint /* round */
/* Preserve "invalid" exceptions from sNaN input. */
fnstsw
andl $0x1, %eax
orl %eax, -24(%rsp)
fldenv -28(%rsp) /* restore original environment */
ret
END (__ceill)
libm_alias_ldouble (__ceil, ceil)
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