1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #include <linux/kernel.h>
3 #include <linux/sched.h>
4 #include <linux/types.h>
5 #include <asm/byteorder.h>
6
7 #define add_ssaaaa(sh, sl, ah, al, bh, bl)
8 __asm__ ("addcc %r4,%5,%1\n\t"
9 "addx %r2,%3,%0\n"
10 : "=r" (sh),
11 "=&r" (sl)
12 : "%rJ" ((USItype)(ah)),
13 "rI" ((USItype)(bh)),
14 "%rJ" ((USItype)(al)),
15 "rI" ((USItype)(bl))
16 : "cc")
17 #define sub_ddmmss(sh, sl, ah, al, bh, bl)
18 __asm__ ("subcc %r4,%5,%1\n\t"
19 "subx %r2,%3,%0\n"
20 : "=r" (sh),
21 "=&r" (sl)
22 : "rJ" ((USItype)(ah)),
23 "rI" ((USItype)(bh)),
24 "rJ" ((USItype)(al)),
25 "rI" ((USItype)(bl))
26 : "cc")
27
28 #define umul_ppmm(w1, w0, u, v) \
29 __asm__ ("! Inlined umul_ppmm\n\t"
30 "wr %%g0,%2,%%y ! SPARC has 0-
31 "sra %3,31,%%g2 ! Don't move t
32 "and %2,%%g2,%%g2 ! Don't move t
33 "andcc %%g0,0,%%g1 ! Don't move t
34 "mulscc %%g1,%3,%%g1\n\t"
35 "mulscc %%g1,%3,%%g1\n\t"
36 "mulscc %%g1,%3,%%g1\n\t"
37 "mulscc %%g1,%3,%%g1\n\t"
38 "mulscc %%g1,%3,%%g1\n\t"
39 "mulscc %%g1,%3,%%g1\n\t"
40 "mulscc %%g1,%3,%%g1\n\t"
41 "mulscc %%g1,%3,%%g1\n\t"
42 "mulscc %%g1,%3,%%g1\n\t"
43 "mulscc %%g1,%3,%%g1\n\t"
44 "mulscc %%g1,%3,%%g1\n\t"
45 "mulscc %%g1,%3,%%g1\n\t"
46 "mulscc %%g1,%3,%%g1\n\t"
47 "mulscc %%g1,%3,%%g1\n\t"
48 "mulscc %%g1,%3,%%g1\n\t"
49 "mulscc %%g1,%3,%%g1\n\t"
50 "mulscc %%g1,%3,%%g1\n\t"
51 "mulscc %%g1,%3,%%g1\n\t"
52 "mulscc %%g1,%3,%%g1\n\t"
53 "mulscc %%g1,%3,%%g1\n\t"
54 "mulscc %%g1,%3,%%g1\n\t"
55 "mulscc %%g1,%3,%%g1\n\t"
56 "mulscc %%g1,%3,%%g1\n\t"
57 "mulscc %%g1,%3,%%g1\n\t"
58 "mulscc %%g1,%3,%%g1\n\t"
59 "mulscc %%g1,%3,%%g1\n\t"
60 "mulscc %%g1,%3,%%g1\n\t"
61 "mulscc %%g1,%3,%%g1\n\t"
62 "mulscc %%g1,%3,%%g1\n\t"
63 "mulscc %%g1,%3,%%g1\n\t"
64 "mulscc %%g1,%3,%%g1\n\t"
65 "mulscc %%g1,%3,%%g1\n\t"
66 "mulscc %%g1,0,%%g1\n\t"
67 "add %%g1,%%g2,%0\n\t"
68 "rd %%y,%1\n"
69 : "=r" (w1),
70 "=r" (w0)
71 : "%rI" ((USItype)(u)),
72 "r" ((USItype)(v))
73 : "%g1", "%g2", "cc")
74
75 /* It's quite necessary to add this much assem
76 The default udiv_qrnnd (in C) is more than
77 #define udiv_qrnnd(q, r, n1, n0, d) \
78 __asm__ ("! Inlined udiv_qrnnd\n\t"
79 "mov 32,%%g1\n\t"
80 "subcc %1,%2,%%g0\n\t"
81 "1: bcs 5f\n\t"
82 "addxcc %0,%0,%0 ! shift n1n0 a
83 "sub %1,%2,%1 ! this kills m
84 "addx %1,%1,%1 ! so t
85 "subcc %%g1,1,%%g1\n\t"
86 "2: bne 1b\n\t"
87 "subcc %1,%2,%%g0\n\t"
88 "bcs 3f\n\t"
89 "addxcc %0,%0,%0 ! shift n1n0 a
90 "b 3f\n\t"
91 "sub %1,%2,%1 ! this kills m
92 "4: sub %1,%2,%1\n\t"
93 "5: addxcc %1,%1,%1\n\t"
94 "bcc 2b\n\t"
95 "subcc %%g1,1,%%g1\n\t"
96 "! Got carry from n. Subtract next
97 "bne 4b\n\t"
98 "addcc %0,%0,%0 ! shif
99 "sub %1,%2,%1\n\t"
100 "3: xnor %0,0,%0\n\t"
101 "! End of inline udiv_qrnnd\n"
102 : "=&r" (q),
103 "=&r" (r)
104 : "r" ((USItype)(d)),
105 "1" ((USItype)(n1)),
106 "" ((USItype)(n0)) : "%g1", "cc")
107 #define UDIV_NEEDS_NORMALIZATION 0
108
109 #define abort()
110 return 0
111
112 #ifdef __BIG_ENDIAN
113 #define __BYTE_ORDER __BIG_ENDIAN
114 #else
115 #define __BYTE_ORDER __LITTLE_ENDIAN
116 #endif
117
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