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sfp-util.h

#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 volatile(                             \
            "     alr   %1,%3\n"          \
            "     brc   12,0f\n"          \
            "     ahi   %0,1\n"                 \
            "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 volatile(                             \
            "     slr   %1,%3\n"          \
            "     brc   3,0f\n"                 \
            "     ahi   %0,-1\n"          \
            "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 volatile(                             \
            "     ltr   1,%0\n"                 \
            "     mr    0,%1\n"                 \
            "     jnm   0f\n"                   \
            "     alr   0,%1\n"                 \
            "0:   ltr   %1,%1\n"                \
            "     jnm   1f\n"                   \
            "     alr   0,%0\n"                 \
            "1:   lr    %0,0\n"                 \
            "     lr    %1,1\n"                 \
            : "+d" (__wh), "+d" (__wl)          \
            : : "0", "1", "cc");                \
      wh = __wh;                          \
      wl = __wl;                          \
})

#ifdef __s390x__
#define udiv_qrnnd(q, r, n1, n0, d)             \
  do { unsigned long __n;                       \
       unsigned int __r, __d;                   \
    __n = ((unsigned long)(n1) << 32) + n0;           \
    __d = (d);                                  \
    (q) = __n / __d;                            \
    (r) = __n % __d;                            \
  } while (0)
#else
#define udiv_qrnnd(q, r, n1, n0, d)             \
  do { unsigned int __r;                        \
    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d));       \
    (r) = __r;                                  \
  } while (0)
extern unsigned long __udiv_qrnnd (unsigned int *, unsigned int,
                           unsigned int , unsigned int);
#endif

#define UDIV_NEEDS_NORMALIZATION 0

#define abort() return 0

#define __BYTE_ORDER __BIG_ENDIAN

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