shithub: riscv

ref: 52d407f86f35b4a9f2be36c6d61032e2ecb9f754
dir: /arm/include/u.h/

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#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		intptr;
typedef unsigned long	uintptr;
typedef unsigned long	usize;
typedef	uint		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 char u8int;
typedef unsigned short u16int;
typedef unsigned int	u32int;
typedef unsigned long long u64int;

/* VFP FPSCR (exceptions) */
#define	FPINEX		(1<<12)
#define	FPUNFL		(1<<11)
#define	FPOVFL		(1<<10)
#define	FPZDIV		(1<<9)
#define	FPINVAL		(1<<8)

/* VFP FPSCR (rounding) */
#define	FPRNR		(0<<22)
#define	FPRPINF		(1<<22)
#define	FPRNINF		(2<<22)
#define	FPRZ		(3<<22)

#define	FPRMASK		(3<<22)

/* VFP FPSCR (status) */
#define	FPPEXT	0
#define	FPPSGL	0
#define	FPPDBL	0
#define	FPPMASK	0
#define	FPAINEX		(1<<4)
#define	FPAUNFL		(1<<3)
#define	FPAOVFL		(1<<2)
#define	FPAZDIV		(1<<1)
#define	FPAINVAL	(1<<0)

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

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)?\
		((list += 4), (mode*)list)[-4]:\
	(sizeof(mode) == 2)?\
		((list += 4), (mode*)list)[-2]:\
		((list += sizeof(mode)), (mode*)list)[-1])