diff options
Diffstat (limited to 'lib/libm/arch/x86_64/s_ceilf.S')
| -rw-r--r-- | lib/libm/arch/x86_64/s_ceilf.S | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/libm/arch/x86_64/s_ceilf.S b/lib/libm/arch/x86_64/s_ceilf.S new file mode 100644 index 00000000000..4900b42493e --- /dev/null +++ b/lib/libm/arch/x86_64/s_ceilf.S @@ -0,0 +1,43 @@ +/* + * Written by J.T. Conklin <jtc@NetBSD.org>. + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: s_ceilf.S,v 1.7 2003/07/26 19:25:01 salo Exp $") + +ENTRY(ceilf) +#ifdef __i386__ + 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 +#else + fstcw -8(%rsp) + movw -8(%rsp),%dx + orw $0x0800,%dx + andw $0xfbff,%dx + movw %dx,-12(%rsp) + fldcw -12(%rsp) + movss %xmm0,-4(%rsp) + fldl -4(%rsp) + frndint + fldcw -8(%rsp) + fstps -4(%rsp) + movss -4(%rsp),%xmm0 +#endif + ret |