/* * system- and machine-specific declarations for emu: * floating-point save and restore, signal handling primitive, and * implementation of the current-process variable `up'. */ extern	Proc*	getup();#define	up	(getup()) typedef	struct	FPU	FPU; /* * This structure must agree with FPsave and FPrestore asm routines */struct FPU{	int dummy[1];	/* XXX what goes here? */}; typedef jmp_buf osjmpbuf;int     ossetjmp(jmp_buf);int	main(int argc, char *argv[]);void    _Noreturn sysfault(char *, void *);int     kprint(int fd, const char *fmt, ...);//char   *kgetcwd(char *buffer, size_t n);void    kassert(char *s);void    kabort(void); #define print(...)      kprint(1, __VA_ARGS__)#define _assert(x)      kassert(x)static	inline long	osmillisec(void) { return nsec()/1000000; }extern	ssize_t		cons_read(int fd, long buffer, size_t n);extern	ssize_t		cons_write(int fd, long buffer, size_t n);#define smalloc(x)	vsmalloc(x, __func__, "")#define kmalloc(x)	vkmalloc(x, __func__, "")