xref: /inferno-os/Inferno/power/include/u.h (revision e45fa0eb0763b57d6fb0649c064bc3b95ccdea6c)
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	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 
22 /* FPSCR */
23 #define	FPSFX	(1<<31)	/* exception summary (sticky) */
24 #define	FPSEX	(1<<30)	/* enabled exception summary */
25 #define	FPSVX	(1<<29)	/* invalid operation exception summary */
26 #define	FPSOX	(1<<28)	/* overflow exception OX (sticky) */
27 #define	FPSUX	(1<<27)	/* underflow exception UX (sticky) */
28 #define	FPSZX	(1<<26)	/* zero divide exception ZX (sticky) */
29 #define	FPSXX	(1<<25)	/* inexact exception XX (sticky) */
30 #define	FPSVXSNAN (1<<24)	/* invalid operation exception for SNaN (sticky) */
31 #define	FPSVXISI	(1<<23)	/* invalid operation exception for ∞-∞ (sticky) */
32 #define	FPSVXIDI	(1<<22)	/* invalid operation exception for ∞/∞ (sticky) */
33 #define	FPSVXZDZ (1<<21)	/* invalid operation exception for 0/0 (sticky) */
34 #define	FPSVXIMZ	(1<<20)	/* invalid operation exception for ∞*0 (sticky) */
35 #define	FPSVXVC	(1<<19)	/* invalid operation exception for invalid compare (sticky) */
36 #define	FPSFR	(1<<18)	/* fraction rounded */
37 #define	FPSFI	(1<<17)	/* fraction inexact */
38 #define	FPSFPRF	(1<<16)	/* floating point result class */
39 #define	FPSFPCC	(0xF<<12)	/* <, >, =, unordered */
40 #define	FPVXCVI	(1<<8)	/* enable exception for invalid integer convert (sticky) */
41 #define	FPVE	(1<<7)	/* invalid operation exception enable */
42 #define	FPOVFL	(1<<6)	/* enable overflow exceptions */
43 #define	FPUNFL	(1<<5)	/* enable underflow */
44 #define	FPZDIV	(1<<4)	/* enable zero divide */
45 #define	FPINEX	(1<<3)	/* enable inexact exceptions */
46 #define	FPRMASK	(3<<0)	/* rounding mode */
47 #define	FPRNR	(0<<0)
48 #define	FPRZ	(1<<0)
49 #define	FPRPINF	(2<<0)
50 #define	FPRNINF	(3<<0)
51 #define	FPPEXT	0
52 #define	FPPSGL	0
53 #define	FPPDBL	0
54 #define	FPPMASK	0
55 #define	FPINVAL	FPVE
56 
57 #define	FPAOVFL	FPSOX
58 #define	FPAINEX	FPSXX
59 #define	FPAUNFL	FPSUX
60 #define	FPAZDIV	FPSZX
61 #define	FPAINVAL	FPSVX
62 
63 union FPdbleword
64 {
65 	double	x;
66 	struct {	/* big endian */
67 		ulong hi;
68 		ulong lo;
69 	};
70 };
71 
72 typedef	char*	va_list;
73 #define va_start(list, start) list =\
74 	(sizeof(start) < 4?\
75 		(char*)((int*)&(start)+1):\
76 		(char*)(&(start)+1))
77 #define va_end(list)\
78 	USED(list)
79 #define va_arg(list, mode)\
80 	((sizeof(mode) == 1)?\
81 		((mode*)(list += 4))[-1]:\
82 	(sizeof(mode) == 2)?\
83 		((mode*)(list += 4))[-1]:\
84 		((mode*)(list += sizeof(mode)))[-1])
85