trap.h

著名的AT&T UNIX v6 源码

/*
 	Trap type values
 */

#define RESADFLT 0		/* reserved addressing fault */
#define PRIVINFLT 1		/* privileged instruction fault */
#define BPTFLT 2		/* bpt instruction fault */
#define XFCFLT 3		/* xfc instruction fault */
#define RESOPFLT 4		/* reserved operand fault */
#define SYSCALL 5		/* chmk instruction (syscall trap) */
#define ARITHTRAP 6		/* arithmetic trap */
#define RESCHED 7		/* software level 1 trap (reschedule trap) */
#define SEGFLT 8		/* segmentation fault */
#define PROTFLT 9		/* protection fault */
#define TRCTRAP 10		/* trace trap */
#define COMPATFLT 11	/* compatibility mode fault */