1992/0805/power/trap.c (diff list | history)

1992/0803/sys/src/9/power/trap.c:83,92 – 1992/0805/sys/src/9/power/trap.c:83,91 (short | long | prev | next)
1990/0227		ecode = EXCCODE(ur->cause);
1992/0527		LEDON(ecode);
1990/0227		user = ur->status&KUP;
1991/1110		if(u) {
1990/0227		u->p->pc = ur->pc; /* BUG */
1992/0805		if(u)
1991/1110		u->dbgreg = ur; }
1992/0805
1990/0227		switch(ecode){ case CINT: if(u && u->p->state==Running){
1992/0803/sys/src/9/power/trap.c:505,511 – 1992/0805/sys/src/9/power/trap.c:504,510
1992/0407		p = u->p; p->insyscall = 1;
1990/0227		ur = aur;
1992/0407		p->pc = ur->pc; /* BUG */
1992/0805		p->pc = ur->pc;
1991/1110		u->dbgreg = aur;
1990/0901		ur->cause = 15<<2; /* for debugging: system call is undef 15;
1990/0227		/*
1992/0803/sys/src/9/power/trap.c:574,579 – 1992/0805/sys/src/9/power/trap.c:573,579
1991/1214		*--sp = nargs; ((Ureg*)UREGADDR)->usp = (ulong)sp; ((Ureg*)UREGADDR)->pc = entry - 4; /* syscall advances it */
1992/0805		u->fpsave.fpstatus = initfp.fpstatus;
1991/1214		return USTKTOP-BY2WD; /* address of user-level clock */
1990/0227		}