xref: /plan9/arm/include/u.h (revision e94a8e9b44de11e62dfd4566245554f8bf8e0295)
1 #define nil		((void*)0)
2 
3 typedef	unsigned short	ushort;
4 typedef	unsigned char	uchar;
5 typedef	unsigned long	ulong;
6 typedef	unsigned int	uint;
7 typedef	signed char	schar;
8 typedef	long long	vlong;
9 typedef	unsigned long long uvlong;
10 typedef unsigned long	uintptr;
11 typedef unsigned long	usize;
12 typedef	uint		Rune;
13 typedef 	union FPdbleword FPdbleword;
14 typedef long	jmp_buf[2];
15 #define	JMPBUFSP	0
16 #define	JMPBUFPC	1
17 #define	JMPBUFDPC	0
18 typedef unsigned int	mpdigit;	/* for /sys/include/mp.h */
19 typedef unsigned char u8int;
20 typedef unsigned short u16int;
21 typedef unsigned int	u32int;
22 typedef unsigned long long u64int;
23 
24 /* VFP FCR */
25 #define	FPINEX	(1<<12)			/* trap enables for exceptions */
26 #define	FPUNFL	(1<<11)
27 #define	FPOVFL	(1<<10)
28 #define	FPZDIV	(1<<9)
29 #define	FPINVAL	(1<<8)
30 #define	FPRNR	(0<<22)
31 #define	FPRZ	(1<<22)
32 #define	FPRPINF	(2<<22)
33 #define	FPRNINF	(3<<22)
34 #define	FPRMASK	(3<<22)
35 #define	FPPEXT	0
36 #define	FPPSGL	0
37 #define	FPPDBL	0
38 #define	FPPMASK	0
39 /* FSR */
40 #define	FPAINEX	(1<<4)			/* accrued exceptions */
41 #define	FPAUNFL	(1<<3)
42 #define	FPAOVFL	(1<<2)
43 #define	FPAZDIV	(1<<1)
44 #define	FPAINVAL	(1<<0)
45 union FPdbleword
46 {
47 	double	x;
48 	struct {	/* little endian */
49 		ulong lo;
50 		ulong hi;
51 	};
52 };
53 
54 typedef	char*	va_list;
55 #define va_start(list, start) list =\
56 	(sizeof(start) < 4?\
57 		(char*)((int*)&(start)+1):\
58 		(char*)(&(start)+1))
59 #define va_end(list)\
60 	USED(list)
61 #define va_arg(list, mode)\
62 	((sizeof(mode) == 1)?\
63 		((list += 4), (mode*)list)[-4]:\
64 	(sizeof(mode) == 2)?\
65 		((list += 4), (mode*)list)[-2]:\
66 		((list += sizeof(mode)), (mode*)list)[-1])
67