| /* |
| * Written by J.T. Conklin <jtc@netbsd.org>. |
| * Public domain. |
| */ |
| |
| #include <machine/asm.h> |
| |
| __FBSDID("$FreeBSD: src/lib/msun/i387/s_floorf.S,v 1.2 2005/05/06 15:44:20 deischen Exp $"); |
| /* RCSID("$NetBSD: s_floorf.S,v 1.3 1995/05/09 00:04:32 jtc Exp $") */ |
| |
| ENTRY(floorf) |
| pushl %ebp |
| movl %esp,%ebp |
| subl $8,%esp |
| |
| fstcw -4(%ebp) /* store fpu control word */ |
| movw -4(%ebp),%dx |
| orw $0x0400,%dx /* round towards -oo */ |
| andw $0xf7ff,%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 |
