xref: /inferno-os/Inferno/arm/include/u.h (revision 715a866f4203b352703247b51de6e9e29894384b)
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	uint		Rune;
11 typedef 	union FPdbleword FPdbleword;
12 typedef long	jmp_buf[2];
13 #define	JMPBUFSP	0
14 #define	JMPBUFPC	1
15 #define	JMPBUFDPC	0
16 typedef unsigned int	mpdigit;	/* for /sys/include/mp.h */
17 typedef unsigned char u8int;
18 typedef unsigned short u16int;
19 typedef unsigned int	u32int;
20 typedef unsigned long long u64int;
21 typedef unsigned long uintptr;
22 
23 /* FCR */
24 #define	FPINEX	(1<<20)
25 #define	FPUNFL	(1<<19)
26 #define	FPOVFL	(1<<18)
27 #define	FPZDIV	(1<<17)
28 #define	FPINVAL	(1<<16)
29 #define	FPRNR	(0<<0)
30 #define	FPRZ	(1<<0)
31 #define	FPRPINF	(2<<0)
32 #define	FPRNINF	(3<<0)
33 #define	FPRMASK	(3<<0)
34 #define	FPPEXT	0
35 #define	FPPSGL	0
36 #define	FPPDBL	0
37 #define	FPPMASK	0
38 /* FSR */
39 #define	FPAINEX	(1<<4)
40 #define	FPAUNFL	(1<<3)
41 #define	FPAOVFL	(1<<2)
42 #define	FPAZDIV	(1<<1)
43 #define	FPAINVAL	(1<<0)
44 union FPdbleword
45 {
46 	double	x;
47 	struct {	/* little endian (on VFP and now in software) */
48 		ulong lo;
49 		ulong hi;
50 	};
51 };
52 
53 typedef	char*	va_list;
54 #define va_start(list, start) list =\
55 	(sizeof(start) < 4?\
56 		(char*)((int*)&(start)+1):\
57 		(char*)(&(start)+1))
58 #define va_end(list)\
59 	USED(list)
60 #define va_arg(list, mode)\
61 	((sizeof(mode) == 1)?\
62 		((mode*)(list += 4))[-4]:\
63 	(sizeof(mode) == 2)?\
64 		((mode*)(list += 4))[-2]:\
65 		((mode*)(list += sizeof(mode)))[-1])
66