| /* |
| * Based on code written by J.T. Conklin <jtc@NetBSD.org>. |
| * Public domain. |
| */ |
| |
| #include <machine/asm.h> |
| __FBSDID("$FreeBSD: src/lib/msun/i387/s_trunc.S,v 1.1 2005/04/16 21:12:55 das Exp $") |
| |
| ENTRY(trunc) |
| pushl %ebp |
| movl %esp,%ebp |
| subl $8,%esp |
| |
| fstcw -4(%ebp) /* store fpu control word */ |
| movw -4(%ebp),%dx |
| orw $0x0c00,%dx /* round towards -oo */ |
| movw %dx,-8(%ebp) |
| fldcw -8(%ebp) /* load modfied control word */ |
| |
| fldl 8(%ebp) /* round */ |
| frndint |
| |
| fldcw -4(%ebp) /* restore original control word */ |
| |
| leave |
| ret |
