| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <linux/kernel.h> |
| 2 | #include <linux/sched.h> |
| 3 | #include <linux/types.h> |
| 4 | #include <asm/byteorder.h> |
| 5 | |
| 6 | #define add_ssaaaa(sh, sl, ah, al, bh, bl) ({ \ |
| 7 | unsigned int __sh = (ah); \ |
| 8 | unsigned int __sl = (al); \ |
| 9 | __asm__ (" alr %1,%3\n" \ |
| 10 | " brc 12,0f\n" \ |
| 11 | " ahi %0,1\n" \ |
| 12 | "0: alr %0,%2" \ |
| 13 | : "+&d" (__sh), "+d" (__sl) \ |
| 14 | : "d" (bh), "d" (bl) : "cc" ); \ |
| 15 | (sh) = __sh; \ |
| 16 | (sl) = __sl; \ |
| 17 | }) |
| 18 | |
| 19 | #define sub_ddmmss(sh, sl, ah, al, bh, bl) ({ \ |
| 20 | unsigned int __sh = (ah); \ |
| 21 | unsigned int __sl = (al); \ |
| 22 | __asm__ (" slr %1,%3\n" \ |
| 23 | " brc 3,0f\n" \ |
| 24 | " ahi %0,-1\n" \ |
| 25 | "0: slr %0,%2" \ |
| 26 | : "+&d" (__sh), "+d" (__sl) \ |
| 27 | : "d" (bh), "d" (bl) : "cc" ); \ |
| 28 | (sh) = __sh; \ |
| 29 | (sl) = __sl; \ |
| 30 | }) |
| 31 | |
| 32 | /* a umul b = a mul b + (a>=2<<31) ? b<<32:0 + (b>=2<<31) ? a<<32:0 */ |
| 33 | #define umul_ppmm(wh, wl, u, v) ({ \ |
| 34 | unsigned int __wh = u; \ |
| 35 | unsigned int __wl = v; \ |
| 36 | __asm__ (" ltr 1,%0\n" \ |
| 37 | " mr 0,%1\n" \ |
| 38 | " jnm 0f\n" \ |
| 39 | " alr 0,%1\n" \ |
| 40 | "0: ltr %1,%1\n" \ |
| 41 | " jnm 1f\n" \ |
| 42 | " alr 0,%0\n" \ |
| 43 | "1: lr %0,0\n" \ |
| 44 | " lr %1,1\n" \ |
| 45 | : "+d" (__wh), "+d" (__wl) \ |
| 46 | : : "0", "1", "cc" ); \ |
| 47 | wh = __wh; \ |
| 48 | wl = __wl; \ |
| 49 | }) |
| 50 | |
| 51 | #define udiv_qrnnd(q, r, n1, n0, d) \ |
| 52 | do { unsigned long __r; \ |
| 53 | (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ |
| 54 | (r) = __r; \ |
| 55 | } while (0) |
| 56 | extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long, |
| 57 | unsigned long , unsigned long); |
| 58 | |
| 59 | #define UDIV_NEEDS_NORMALIZATION 0 |
| 60 | |
| 61 | #define abort() return 0 |
| 62 | |
| 63 | #define __BYTE_ORDER __BIG_ENDIAN |