/* SPDX-License-Identifier: GPL-2.0 */ /* * These are copied from glibc/stdlib/longlong.h */ #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ do { \ UWtype __x; \ __x = (al) + (bl); \ (sh) = (ah) + (bh) + (__x < (al)); \ (sl) = __x; \ } while (0) #define sub_ddmmss(sh, sl, ah, al, bh, bl) \ do { \ UWtype __x; \ __x = (al) - (bl); \ (sh) = (ah) - (bh) - (__x > (al)); \ (sl) = __x; \ } while (0) #define umul_ppmm(w1, w0, u, v) \ __asm__ ("dmulu.l %2,%3\n\tsts macl,%1\n\tsts mach,%0" \ : "=r" ((u32)(w1)), "=r" ((u32)(w0)) \ : "r" ((u32)(u)), "r" ((u32)(v)) \ : "macl", "mach") #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) #define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) #define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) #define udiv_qrnnd(q, r, n1, n0, d) \ do { \ UWtype __d1, __d0, __q1, __q0; \ UWtype __r1, __r0, __m; \ __d1 = __ll_highpart (d); \ __d0 = __ll_lowpart (d); \ \ __r1 = (n1) % __d1; \ __q1 = (n1) / __d1; \ __m = (UWtype) __q1 * __d0; \ __r1 = __r1 * __ll_B | __ll_highpart (n0); \ if (__r1 < __m) \ { \ __q1--, __r1 += (d); \ if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ if (__r1 < __m) \ __q1--, __r1 += (d); \ } \ __r1 -= __m; \ \ __r0 = __r1 % __d1; \ __q0 = __r1 / __d1; \ __m = (UWtype) __q0 * __d0; \ __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ if (__r0 < __m) \ { \ __q0--, __r0 += (d); \ if (__r0 >= (d)) \ if (__r0 < __m) \ __q0--, __r0 += (d); \ } \ __r0 -= __m; \ \ (q) = (UWtype) __q1 * __ll_B | __q0; \ (r) = __r0; \ } while (0) #define abort() return 0 #define __BYTE_ORDER __LITTLE_ENDIAN