frame.h

<B>Digital的Unix操作系统VAX 4.2源码</B>

/*	frame.h	6.1	83/07/29	*/

/*
 * Definition of the vax calls/callg frame.
 */
struct frame {
	int	fr_handler;
	u_int	fr_psw:16,		/* saved psw */
		fr_mask:12,		/* register save mask */
		:1,
		fr_s:1,			/* call was a calls, not callg */
		fr_spa:2;		/* stack pointer alignment */
	int	fr_savap;		/* saved arg pointer */
	int	fr_savfp;		/* saved frame pointer */
	int	fr_savpc;		/* saved program counter */
};