ia64/linux-2.6.18-xen.hg

view arch/powerpc/math-emu/fcmpo.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"
8 int
9 fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
10 {
11 FP_DECL_D(A);
12 FP_DECL_D(B);
13 int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
14 long cmp;
15 int ret = 0;
17 #ifdef DEBUG
18 printk("%s: %p (%08x) %d %p %p\n", __FUNCTION__, ccr, *ccr, crfD, 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_NAN || B_c == FP_CLS_NAN)
30 ret |= EFLAG_VXVC;
32 FP_CMP_D(cmp, A, B, 2);
33 cmp = code[(cmp + 1) & 3];
35 __FPU_FPSCR &= ~(0x1f000);
36 __FPU_FPSCR |= (cmp << 12);
38 *ccr &= ~(15 << ((7 - crfD) << 2));
39 *ccr |= (cmp << ((7 - crfD) << 2));
41 #ifdef DEBUG
42 printk("CR: %08x\n", *ccr);
43 #endif
45 return ret;
46 }