Fix common misspellings
[linux-2.6.git] / arch / sparc / math-emu / sfp-util_64.h
1 /*
2  * arch/sparc64/math-emu/sfp-util.h
3  *
4  * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
5  * Copyright (C) 1999 David S. Miller (davem@redhat.com)
6  *
7  */
8
9 #include <linux/kernel.h>
10 #include <linux/sched.h>
11 #include <linux/types.h>
12 #include <asm/byteorder.h>
13
14 #define add_ssaaaa(sh, sl, ah, al, bh, bl)      \
15   __asm__ ("addcc %4,%5,%1\n\t"                 \
16            "add %2,%3,%0\n\t"                   \
17            "bcs,a,pn %%xcc, 1f\n\t"             \
18            "add %0, 1, %0\n"                    \
19            "1:"                                 \
20            : "=r" ((UDItype)(sh)),              \
21              "=&r" ((UDItype)(sl))              \
22            : "r" ((UDItype)(ah)),               \
23              "r" ((UDItype)(bh)),               \
24              "r" ((UDItype)(al)),               \
25              "r" ((UDItype)(bl))                \
26            : "cc")
27            
28 #define sub_ddmmss(sh, sl, ah, al, bh, bl)      \
29   __asm__ ("subcc %4,%5,%1\n\t"                 \
30            "sub %2,%3,%0\n\t"                   \
31            "bcs,a,pn %%xcc, 1f\n\t"             \
32            "sub %0, 1, %0\n"                    \
33            "1:"                                 \
34            : "=r" ((UDItype)(sh)),              \
35              "=&r" ((UDItype)(sl))              \
36            : "r" ((UDItype)(ah)),               \
37              "r" ((UDItype)(bh)),               \
38              "r" ((UDItype)(al)),               \
39              "r" ((UDItype)(bl))                \
40            : "cc")
41
42 #define umul_ppmm(wh, wl, u, v)                         \
43   do {                                                  \
44           UDItype tmp1, tmp2, tmp3, tmp4;               \
45           __asm__ __volatile__ (                        \
46                    "srl %7,0,%3\n\t"                    \
47                    "mulx %3,%6,%1\n\t"                  \
48                    "srlx %6,32,%2\n\t"                  \
49                    "mulx %2,%3,%4\n\t"                  \
50                    "sllx %4,32,%5\n\t"                  \
51                    "srl %6,0,%3\n\t"                    \
52                    "sub %1,%5,%5\n\t"                   \
53                    "srlx %5,32,%5\n\t"                  \
54                    "addcc %4,%5,%4\n\t"                 \
55                    "srlx %7,32,%5\n\t"                  \
56                    "mulx %3,%5,%3\n\t"                  \
57                    "mulx %2,%5,%5\n\t"                  \
58                    "sethi %%hi(0x80000000),%2\n\t"      \
59                    "addcc %4,%3,%4\n\t"                 \
60                    "srlx %4,32,%4\n\t"                  \
61                    "add %2,%2,%2\n\t"                   \
62                    "movcc %%xcc,%%g0,%2\n\t"            \
63                    "addcc %5,%4,%5\n\t"                 \
64                    "sllx %3,32,%3\n\t"                  \
65                    "add %1,%3,%1\n\t"                   \
66                    "add %5,%2,%0"                       \
67            : "=r" ((UDItype)(wh)),                      \
68              "=&r" ((UDItype)(wl)),                     \
69              "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
70            : "r" ((UDItype)(u)),                        \
71              "r" ((UDItype)(v))                         \
72            : "cc");                                     \
73   } while (0)
74   
75 #define udiv_qrnnd(q, r, n1, n0, d)                     \
76   do {                                                  \
77     UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m;     \
78     __d1 = (d >> 32);                                   \
79     __d0 = (USItype)d;                                  \
80                                                         \
81     __r1 = (n1) % __d1;                                 \
82     __q1 = (n1) / __d1;                                 \
83     __m = (UWtype) __q1 * __d0;                         \
84     __r1 = (__r1 << 32) | (n0 >> 32);                   \
85     if (__r1 < __m)                                     \
86       {                                                 \
87         __q1--, __r1 += (d);                            \
88         if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \
89           if (__r1 < __m)                               \
90             __q1--, __r1 += (d);                        \
91       }                                                 \
92     __r1 -= __m;                                        \
93                                                         \
94     __r0 = __r1 % __d1;                                 \
95     __q0 = __r1 / __d1;                                 \
96     __m = (UWtype) __q0 * __d0;                         \
97     __r0 = (__r0 << 32) | ((USItype)n0);                \
98     if (__r0 < __m)                                     \
99       {                                                 \
100         __q0--, __r0 += (d);                            \
101         if (__r0 >= (d))                                \
102           if (__r0 < __m)                               \
103             __q0--, __r0 += (d);                        \
104       }                                                 \
105     __r0 -= __m;                                        \
106                                                         \
107     (q) = (UWtype) (__q1 << 32)  | __q0;                \
108     (r) = __r0;                                         \
109   } while (0)
110
111 #define UDIV_NEEDS_NORMALIZATION 1  
112
113 #define abort() \
114         return 0
115
116 #ifdef __BIG_ENDIAN
117 #define __BYTE_ORDER __BIG_ENDIAN
118 #else
119 #define __BYTE_ORDER __LITTLE_ENDIAN
120 #endif