sfp-util.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:2k
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/types.h>
- #include <asm/byteorder.h>
- #define add_ssaaaa(sh, sl, ah, al, bh, bl) ({
- unsigned int __sh = (ah);
- unsigned int __sl = (al);
- __asm__ (" alr %1,%3n"
- " brc 12,0fn"
- " ahi %0,1n"
- "0: alr %0,%2"
- : "+&d" (__sh), "+d" (__sl)
- : "d" (bh), "d" (bl) : "cc" );
- (sh) = __sh;
- (sl) = __sl;
- })
- #define sub_ddmmss(sh, sl, ah, al, bh, bl) ({
- unsigned int __sh = (ah);
- unsigned int __sl = (al);
- __asm__ (" slr %1,%3n"
- " brc 3,0fn"
- " ahi %0,-1n"
- "0: slr %0,%2"
- : "+&d" (__sh), "+d" (__sl)
- : "d" (bh), "d" (bl) : "cc" );
- (sh) = __sh;
- (sl) = __sl;
- })
- /* a umul b = a mul b + (a>=2<<31) ? b<<32:0 + (b>=2<<31) ? a<<32:0 */
- #define umul_ppmm(wh, wl, u, v) ({
- unsigned int __wh = u;
- unsigned int __wl = v;
- __asm__ (" ltr 1,%0n"
- " mr 0,%1n"
- " jnm 0fn"
- " alr 0,%1n"
- "0: ltr %1,%1n"
- " jnm 1fn"
- " alr 0,%0n"
- "1: lr %0,0n"
- " lr %1,1n"
- : "+d" (__wh), "+d" (__wl)
- : : "0", "1", "cc" );
- wh = __wh;
- wl = __wl;
- })
- #define udiv_qrnnd(q, r, n1, n0, d)
- do { unsigned long __r;
- (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));
- (r) = __r;
- } while (0)
- extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long,
- unsigned long , unsigned long);
- #define UDIV_NEEDS_NORMALIZATION 0
- #define abort() return 0
- #define __BYTE_ORDER __BIG_ENDIAN