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2 - 1 
#define nil		((void*)0)
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typedef	unsigned short	ushort;
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typedef	unsigned char	uchar;
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typedef	unsigned long	ulong;
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typedef	unsigned int	uint;
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typedef	signed char	schar;
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typedef	long long	vlong;
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typedef	unsigned long long uvlong;
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typedef unsigned long	uintptr;
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typedef unsigned long	usize;
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typedef	uint		Rune;
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typedef 	union FPdbleword FPdbleword;
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typedef long	jmp_buf[2];
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#define	JMPBUFSP	0
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#define	JMPBUFPC	1
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#define	JMPBUFDPC	0
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typedef unsigned int	mpdigit;	/* for /sys/include/mp.h */
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typedef unsigned char u8int;
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typedef unsigned short u16int;
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typedef unsigned int	u32int;
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typedef unsigned long long u64int;
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/* FCR (FCR31) */
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#define	FPINEX	(1<<7)		/* enables */
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#define	FPUNFL	(1<<8)
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#define	FPOVFL	(1<<9)
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#define	FPZDIV	(1<<10)
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#define	FPINVAL	(1<<11)
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#define	FPRNR	(0<<0)		/* rounding modes */
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#define	FPRZ	(1<<0)
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#define	FPRPINF	(2<<0)
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#define	FPRNINF	(3<<0)
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#define	FPRMASK	(3<<0)
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#define	FPPEXT	0
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#define	FPPSGL	0
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#define	FPPDBL	0
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#define	FPPMASK	0
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#define FPCOND	(1<<23)
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/* FSR (also FCR31) */
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#define	FPAINEX	(1<<2)		/* flags */
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#define	FPAOVFL	(1<<4)
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#define	FPAUNFL	(1<<3)
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#define	FPAZDIV	(1<<5)
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#define	FPAINVAL (1<<6)
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union FPdbleword
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{
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	double	x;
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	struct {	/* big endian */
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		ulong hi;
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		ulong lo;
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	};
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};
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/* stdarg */
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typedef	char*	va_list;
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#define va_start(list, start) list =\
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	(sizeof(start) < 4?\
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		(char*)((int*)&(start)+1):\
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		(char*)(&(start)+1))
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#define va_end(list)\
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	USED(list)
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#define va_arg(list, mode)\
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	((sizeof(mode) == 1)?\
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		((list += 4), (mode*)list)[-1]:\
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	(sizeof(mode) == 2)?\
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		((list += 4), (mode*)list)[-1]:\
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		((list += sizeof(mode)), (mode*)list)[-1])