#define nil             ((void*)0)
typedef unsigned short  ushort;
typedef unsigned char   uchar;
typedef unsigned long   ulong;
typedef unsigned int    uint;
typedef signed char     schar;
typedef long long       vlong;
typedef unsigned long long uvlong;
typedef ushort          Rune;
typedef         union FPdbleword FPdbleword;
typedef long    jmp_buf[2];
#define JMPBUFSP        0
#define JMPBUFPC        1
#define JMPBUFDPC       0
typedef unsigned int    mpdigit;        /* for /sys/include/mp.h */
typedef unsigned int    u32int;

/* FPSCR */
#define FPSFX   (1<<31) /* exception summary (sticky) */
#define FPSEX   (1<<30) /* enabled exception summary */
#define FPSVX   (1<<29) /* invalid operation exception summary */
#define FPSOX   (1<<28) /* overflow exception OX (sticky) */
#define FPSUX   (1<<27) /* underflow exception UX (sticky) */
#define FPSZX   (1<<26) /* zero divide exception ZX (sticky) */
#define FPSXX   (1<<25) /* inexact exception XX (sticky) */
#define FPSVXSNAN (1<<24)       /* invalid operation exception for SNaN (sticky) */
#define FPSVXISI        (1<<23) /* invalid operation exception for ∞-∞ (sticky) */
#define FPSVXIDI        (1<<22) /* invalid operation exception for ∞/∞ (sticky) */
#define FPSVXZDZ (1<<21)        /* invalid operation exception for 0/0 (sticky) */
#define FPSVXIMZ        (1<<20) /* invalid operation exception for ∞*0 (sticky) */
#define FPSVXVC (1<<19) /* invalid operation exception for invalid compare (sticky) */
#define FPSFR   (1<<18) /* fraction rounded */
#define FPSFI   (1<<17) /* fraction inexact */
#define FPSFPRF (1<<16) /* floating point result class */
#define FPSFPCC (0xF<<12)       /* <, >, =, unordered */
#define FPVXCVI (1<<8)  /* enable exception for invalid integer convert (sticky) */
#define FPVE    (1<<7)  /* invalid operation exception enable */
#define FPOVFL  (1<<6)  /* enable overflow exceptions */
#define FPUNFL  (1<<5)  /* enable underflow */
#define FPZDIV  (1<<4)  /* enable zero divide */
#define FPINEX  (1<<3)  /* enable inexact exceptions */
#define FPRMASK (3<<0)  /* rounding mode */
#define FPRNR   (0<<0)
#define FPRZ    (1<<0)
#define FPRPINF (2<<0)
#define FPRNINF (3<<0)
#define FPPEXT  0
#define FPPSGL  0
#define FPPDBL  0
#define FPPMASK 0
#define FPINVAL FPVE

#define FPAOVFL FPSOX
#define FPAINEX FPSXX
#define FPAUNFL FPSUX
#define FPAZDIV FPSZX
#define FPAINVAL        FPSVX

union FPdbleword
{
       double  x;
       struct {        /* big endian */
               ulong hi;
               ulong lo;
       };
};

typedef char*   va_list;
#define va_start(list, start) list =\
       (sizeof(start) < 4?\
               (char*)((int*)&(start)+1):\
               (char*)(&(start)+1))
#define va_end(list)\
       USED(list)
#define va_arg(list, mode)\
       ((sizeof(mode) == 1)?\
               ((mode*)(list += 4))[-1]:\
       (sizeof(mode) == 2)?\
               ((mode*)(list += 4))[-1]:\
               ((mode*)(list += sizeof(mode)))[-1])