xref: /plan9-contrib/power/include/u.h (revision e94a8e9b44de11e62dfd4566245554f8bf8e0295)
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 /* FPSCR */
24 #define	FPSFX	(1<<31)	/* exception summary (sticky) */
25 #define	FPSEX	(1<<30)	/* enabled exception summary */
26 #define	FPSVX	(1<<29)	/* invalid operation exception summary */
27 #define	FPSOX	(1<<28)	/* overflow exception OX (sticky) */
28 #define	FPSUX	(1<<27)	/* underflow exception UX (sticky) */
29 #define	FPSZX	(1<<26)	/* zero divide exception ZX (sticky) */
30 #define	FPSXX	(1<<25)	/* inexact exception XX (sticky) */
31 #define	FPSVXSNAN (1<<24)	/* invalid operation exception for SNaN (sticky) */
32 #define	FPSVXISI (1<<23)	/* invalid operation exception for ∞-∞ (sticky) */
33 #define	FPSVXIDI (1<<22)	/* invalid operation exception for ∞/∞ (sticky) */
34 #define	FPSVXZDZ (1<<21)	/* invalid operation exception for 0/0 (sticky) */
35 #define	FPSVXIMZ (1<<20)	/* invalid operation exception for ∞*0 (sticky) */
36 #define	FPSVXVC	(1<<19)	/* invalid operation exception for invalid compare (sticky) */
37 #define	FPSFR	(1<<18)	/* fraction rounded */
38 #define	FPSFI	(1<<17)	/* fraction inexact */
39 #define	FPSFPRF	(1<<16)	/* floating point result class */
40 #define	FPSFPCC	(0xF<<12)	/* <, >, =, unordered */
41 #define	FPVXCVI	(1<<8)	/* enable exception for invalid integer convert (sticky) */
42 #define	FPVE	(1<<7)	/* invalid operation exception enable */
43 #define	FPOVFL	(1<<6)	/* enable overflow exceptions */
44 #define	FPUNFL	(1<<5)	/* enable underflow */
45 #define	FPZDIV	(1<<4)	/* enable zero divide */
46 #define	FPINEX	(1<<3)	/* enable inexact exceptions */
47 #define	FPRMASK	(3<<0)	/* rounding mode */
48 #define	FPRNR	(0<<0)
49 #define	FPRZ	(1<<0)
50 #define	FPRPINF	(2<<0)
51 #define	FPRNINF	(3<<0)
52 #define	FPPEXT	0
53 #define	FPPSGL	0
54 #define	FPPDBL	0
55 #define	FPPMASK	0
56 #define	FPINVAL	FPVE
57 
58 #define	FPAOVFL	FPSOX
59 #define	FPAINEX	FPSXX
60 #define	FPAUNFL	FPSUX
61 #define	FPAZDIV	FPSZX
62 #define	FPAINVAL	FPSVX
63 
64 union FPdbleword
65 {
66 	double	x;
67 	struct {	/* big endian */
68 		ulong hi;
69 		ulong lo;
70 	};
71 };
72 
73 typedef	char*	va_list;
74 #define va_start(list, start) list =\
75 	(sizeof(start) < 4?\
76 		(char*)((int*)&(start)+1):\
77 		(char*)(&(start)+1))
78 #define va_end(list)\
79 	USED(list)
80 #define va_arg(list, mode)\
81 	((sizeof(mode) <= 4)?\
82 		((list += 4), (mode*)list)[-1]:\
83 	(signof(mode) != signof(double))?\
84 		((list += sizeof(mode)), (mode*)list)[-1]:\
85 		((list = (char*)((uintptr)(list+7) & ~7) + sizeof(mode)), (mode*)list)[-1])
86