/* * Written by J.T. Conklin . * Public domain. */ .text .global _ceilf _ceilf: flds 4(%esp) subl $8,%esp fstcw 4(%esp) /* store fpu control word */ /* 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 4(%esp),%edx andl $0xfbff,%edx movl %edx,(%esp) fldcw (%esp) /* load modified control word */ frndint /* round */ fldcw 4(%esp) /* restore original control word */ addl $8,%esp ret