1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 /*
3 * These are copied from glibc/stdlib/longlong
4 */
5
6 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
7 do {
8 UWtype __x;
9 __x = (al) + (bl);
10 (sh) = (ah) + (bh) + (__x < (al));
11 (sl) = __x;
12 } while (0)
13
14 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
15 do {
16 UWtype __x;
17 __x = (al) - (bl);
18 (sh) = (ah) - (bh) - (__x > (al));
19 (sl) = __x;
20 } while (0)
21
22 #define umul_ppmm(w1, w0, u, v) \
23 __asm__ ("dmulu.l %2,%3\n\tsts macl,%1\n\
24 : "=r" ((u32)(w1)), "=r" ((u32)(w0))
25 : "r" ((u32)(u)), "r" ((u32)(v))
26 : "macl", "mach")
27
28 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2
29 #define __ll_lowpart(t) ((UWtype) (t) & (__ll_
30 #define __ll_highpart(t) ((UWtype) (t) >> (W_T
31
32 #define udiv_qrnnd(q, r, n1, n0, d) \
33 do {
34 UWtype __d1, __d0, __q1, __q0;
35 UWtype __r1, __r0, __m;
36 __d1 = __ll_highpart (d);
37 __d0 = __ll_lowpart (d);
38
39 __r1 = (n1) % __d1;
40 __q1 = (n1) / __d1;
41 __m = (UWtype) __q1 * __d0;
42 __r1 = __r1 * __ll_B | __ll_highpart (n0);
43 if (__r1 < __m)
44 {
45 __q1--, __r1 += (d);
46 if (__r1 >= (d)) /* i.e. we didn't get
47 if (__r1 < __m)
48 __q1--, __r1 += (d);
49 }
50 __r1 -= __m;
51
52 __r0 = __r1 % __d1;
53 __q0 = __r1 / __d1;
54 __m = (UWtype) __q0 * __d0;
55 __r0 = __r0 * __ll_B | __ll_lowpart (n0);
56 if (__r0 < __m)
57 {
58 __q0--, __r0 += (d);
59 if (__r0 >= (d))
60 if (__r0 < __m)
61 __q0--, __r0 += (d);
62 }
63 __r0 -= __m;
64
65 (q) = (UWtype) __q1 * __ll_B | __q0;
66 (r) = __r0;
67 } while (0)
68
69 #define abort() return 0
70
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