ref: 6104ebc9b6f1805a827c0a2acae8978a3fa33603
dir: /amd64/include/u.h/
#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 long long intptr;
typedef unsigned long long uintptr;
typedef unsigned long usize;
typedef uint Rune;
typedef union FPdbleword FPdbleword;
typedef uintptr jmp_buf[2];
#define JMPBUFSP 0
#define JMPBUFPC 1
#define JMPBUFDPC 0
typedef unsigned int mpdigit; /* for /sys/include/mp.h */
typedef unsigned char u8int;
typedef unsigned short u16int;
typedef unsigned int u32int;
typedef unsigned long long u64int;
/* MXCSR */
/* fcr */
#define FPFTZ (1<<15) /* amd64 */
#define FPINEX (1<<12)
#define FPUNFL (1<<11)
#define FPOVFL (1<<10)
#define FPZDIV (1<<9)
#define FPDNRM (1<<8) /* amd64 */
#define FPINVAL (1<<7)
#define FPDAZ (1<<6) /* amd64 */
#define FPRNR (0<<13)
#define FPRZ (3<<13)
#define FPRPINF (2<<13)
#define FPRNINF (1<<13)
#define FPRMASK (3<<13)
#define FPPEXT 0
#define FPPSGL 0
#define FPPDBL 0
#define FPPMASK 0
/* fsr */
#define FPAINEX (1<<5)
#define FPAUNFL (1<<4)
#define FPAOVFL (1<<3)
#define FPAZDIV (1<<2)
#define FPADNRM (1<<1) /* not in plan 9 */
#define FPAINVAL (1<<0)
union FPdbleword
{
double x;
struct { /* little endian */
uint lo;
uint hi;
};
};
typedef char* va_list;
#define va_start(list, start) list =\
(sizeof(start) < 8?\
(char*)((vlong*)&(start)+1):\
(char*)(&(start)+1))
#define va_end(list)\
USED(list)
#define va_arg(list, mode)\
((sizeof(mode) == 1)?\
((list += 8), (mode*)list)[-8]:\
(sizeof(mode) == 2)?\
((list += 8), (mode*)list)[-4]:\
(sizeof(mode) == 4)?\
((list += 8), (mode*)list)[-2]:\
((list += sizeof(mode)), (mode*)list)[-1])