diff options
Diffstat (limited to 'libm/i387/s_ceilf.S')
| -rw-r--r-- | libm/i387/s_ceilf.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libm/i387/s_ceilf.S b/libm/i387/s_ceilf.S new file mode 100644 index 0000000..152ca7b --- /dev/null +++ b/libm/i387/s_ceilf.S @@ -0,0 +1,29 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +__FBSDID("$FreeBSD: src/lib/msun/i387/s_ceilf.S,v 1.2 2005/05/06 15:44:20 deischen Exp $"); +/* RCSID("$NetBSD: s_ceilf.S,v 1.3 1995/05/08 23:52:44 jtc Exp $") */ + +ENTRY(ceilf) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -4(%ebp) /* store fpu control word */ + movw -4(%ebp),%dx + orw $0x0800,%dx /* round towards +oo */ + andw $0xfbff,%dx + movw %dx,-8(%ebp) + fldcw -8(%ebp) /* load modfied control word */ + + flds 8(%ebp); /* round */ + frndint + + fldcw -4(%ebp) /* restore original control word */ + + leave + ret |