ia64/linux-2.6.18-xen.hg

view arch/powerpc/math-emu/soft-fp.h @ 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 #ifndef SOFT_FP_H
2 #define SOFT_FP_H
4 #include "sfp-machine.h"
6 #define _FP_WORKBITS 3
7 #define _FP_WORK_LSB ((_FP_W_TYPE)1 << 3)
8 #define _FP_WORK_ROUND ((_FP_W_TYPE)1 << 2)
9 #define _FP_WORK_GUARD ((_FP_W_TYPE)1 << 1)
10 #define _FP_WORK_STICKY ((_FP_W_TYPE)1 << 0)
12 #ifndef FP_RND_NEAREST
13 # define FP_RND_NEAREST 0
14 # define FP_RND_ZERO 1
15 # define FP_RND_PINF 2
16 # define FP_RND_MINF 3
17 #ifndef FP_ROUNDMODE
18 # define FP_ROUNDMODE FP_RND_NEAREST
19 #endif
20 #endif
22 #define _FP_ROUND_NEAREST(wc, X) \
23 ({ int __ret = 0; \
24 int __frac = _FP_FRAC_LOW_##wc(X) & 15; \
25 if (__frac & 7) { \
26 __ret = EFLAG_INEXACT; \
27 if ((__frac & 7) != _FP_WORK_ROUND) \
28 _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
29 else if (__frac & _FP_WORK_LSB) \
30 _FP_FRAC_ADDI_##wc(X, _FP_WORK_ROUND); \
31 } \
32 __ret; \
33 })
35 #define _FP_ROUND_ZERO(wc, X) \
36 ({ int __ret = 0; \
37 if (_FP_FRAC_LOW_##wc(X) & 7) \
38 __ret = EFLAG_INEXACT; \
39 __ret; \
40 })
42 #define _FP_ROUND_PINF(wc, X) \
43 ({ int __ret = EFLAG_INEXACT; \
44 if (!X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
45 _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
46 else __ret = 0; \
47 __ret; \
48 })
50 #define _FP_ROUND_MINF(wc, X) \
51 ({ int __ret = EFLAG_INEXACT; \
52 if (X##_s && (_FP_FRAC_LOW_##wc(X) & 7)) \
53 _FP_FRAC_ADDI_##wc(X, _FP_WORK_LSB); \
54 else __ret = 0; \
55 __ret; \
56 })
58 #define _FP_ROUND(wc, X) \
59 ({ int __ret = 0; \
60 switch (FP_ROUNDMODE) \
61 { \
62 case FP_RND_NEAREST: \
63 __ret |= _FP_ROUND_NEAREST(wc,X); \
64 break; \
65 case FP_RND_ZERO: \
66 __ret |= _FP_ROUND_ZERO(wc,X); \
67 break; \
68 case FP_RND_PINF: \
69 __ret |= _FP_ROUND_PINF(wc,X); \
70 break; \
71 case FP_RND_MINF: \
72 __ret |= _FP_ROUND_MINF(wc,X); \
73 break; \
74 }; \
75 __ret; \
76 })
78 #define FP_CLS_NORMAL 0
79 #define FP_CLS_ZERO 1
80 #define FP_CLS_INF 2
81 #define FP_CLS_NAN 3
83 #define _FP_CLS_COMBINE(x,y) (((x) << 2) | (y))
85 #include "op-1.h"
86 #include "op-2.h"
87 #include "op-4.h"
88 #include "op-common.h"
90 /* Sigh. Silly things longlong.h needs. */
91 #define UWtype _FP_W_TYPE
92 #define W_TYPE_SIZE _FP_W_TYPE_SIZE
94 typedef int SItype __attribute__((mode(SI)));
95 typedef int DItype __attribute__((mode(DI)));
96 typedef unsigned int USItype __attribute__((mode(SI)));
97 typedef unsigned int UDItype __attribute__((mode(DI)));
98 #if _FP_W_TYPE_SIZE == 32
99 typedef unsigned int UHWtype __attribute__((mode(HI)));
100 #elif _FP_W_TYPE_SIZE == 64
101 typedef USItype UHWtype;
102 #endif
104 #endif