xref: /plan9-contrib/riscv/include/u.h (revision ce95e1b3727b9cb1c223ffbed69aff21a8ced255)
1 #define nil		((void*)0)
2 typedef	unsigned short	ushort;
3 typedef	unsigned char	uchar;
4 typedef	unsigned long	ulong;
5 typedef	unsigned int	uint;
6 typedef	signed char	schar;
7 typedef	long long	vlong;
8 typedef	unsigned long long uvlong;
9 typedef unsigned long	uintptr;
10 typedef unsigned long	usize;
11 typedef	uint		Rune;
12 typedef 	union FPdbleword FPdbleword;
13 typedef long	jmp_buf[2];
14 #define	JMPBUFSP	0
15 #define	JMPBUFPC	1
16 #define	JMPBUFDPC	0
17 typedef unsigned int	mpdigit;	/* for /sys/include/mp.h */
18 typedef unsigned char u8int;
19 typedef unsigned short u16int;
20 typedef unsigned int	u32int;
21 typedef unsigned long long u64int;
22 
23 /* FCR */
24 #define	FPINEX	0
25 #define	FPUNFL	0
26 #define	FPOVFL	0
27 #define	FPZDIV	0
28 #define	FPINVAL	0
29 #define	FPRNR	(0<<5)
30 #define	FPRZ	(1<<5)
31 #define	FPRPINF	(3<<5)
32 #define	FPRNINF	(2<<5)
33 #define	FPRMASK	(15<<5)
34 #define	FPPEXT	0
35 #define	FPPSGL	0
36 #define	FPPDBL	0
37 #define	FPPMASK	0
38 /* FSR */
39 #define	FPAINEX	(1<<0)
40 #define	FPAOVFL	(1<<2)
41 #define	FPAUNFL	(1<<1)
42 #define	FPAZDIV	(1<<3)
43 #define	FPAINVAL	(1<<4)
44 union FPdbleword
45 {
46 	double	x;
47 	struct {	/* little endian */
48 		ulong lo;
49 		ulong hi;
50 	};
51 };
52 
53 /* stdarg */
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 	(sizeof(mode) == 4)?\
67 		((list += 4), (mode*)list)[-1]:\
68 		((list = (char*)((uintptr)(list+7) & ~7) + sizeof(mode)), (mode*)list)[-1])
69