ia64/linux-2.6.18-xen.hg

view arch/powerpc/math-emu/fdivs.c @ 854:950b9eb27661

usbback: fix urb interval value for interrupt urbs.

Signed-off-by: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Apr 06 13:51:20 2009 +0100 (2009-04-06)
parents 831230e53067
children
line source
1 #include <linux/types.h>
2 #include <linux/errno.h>
3 #include <asm/uaccess.h>
5 #include "soft-fp.h"
6 #include "double.h"
7 #include "single.h"
9 int
10 fdivs(void *frD, void *frA, void *frB)
11 {
12 FP_DECL_D(A);
13 FP_DECL_D(B);
14 FP_DECL_D(R);
15 int ret = 0;
17 #ifdef DEBUG
18 printk("%s: %p %p %p\n", __FUNCTION__, frD, frA, frB);
19 #endif
21 __FP_UNPACK_D(A, frA);
22 __FP_UNPACK_D(B, frB);
24 #ifdef DEBUG
25 printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
26 printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
27 #endif
29 if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
30 ret |= EFLAG_VXZDZ;
31 #ifdef DEBUG
32 printk("%s: FPSCR_VXZDZ raised\n", __FUNCTION__);
33 #endif
34 }
35 if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
36 ret |= EFLAG_VXIDI;
37 #ifdef DEBUG
38 printk("%s: FPSCR_VXIDI raised\n", __FUNCTION__);
39 #endif
40 }
42 if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
43 ret |= EFLAG_DIVZERO;
44 if (__FPU_TRAP_P(EFLAG_DIVZERO))
45 return ret;
46 }
48 FP_DIV_D(R, A, B);
50 #ifdef DEBUG
51 printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
52 #endif
54 return (ret | __FP_PACK_DS(frD, R));
55 }