1992/0103/pc/trap.c (diff list | history)

1991/1218/sys/src/9/pc/trap.c:294,299 – 1992/0103/sys/src/9/pc/trap.c:294,302 (short | long | prev | next)
1991/0710		*/
1991/0731		#include "../port/systab.h"
1991/0720
1992/0103		/* * syscall is called spllo() */
1991/0710		long syscall(Ureg *ur) {
1991/1218/sys/src/9/pc/trap.c:310,316 – 1992/0103/sys/src/9/pc/trap.c:313,318
1991/0720		/* * do something about floating point!!! */                  ax = ur->ax; sp = ur->usp; u->nerrlab = 0;
1991/1218/sys/src/9/pc/trap.c:340,346 – 1992/0103/sys/src/9/pc/trap.c:342,348
1991/1114		if(ax == NOTED)
1991/0720		noted(ur, *(ulong*)(sp+BY2WD));
1991/1114		splhi();
1992/0103		splhi(); /* avoid interrupts during the iret */
1991/1114		if(ax!=FORK && (u->p->procctl || u->nnote))
1991/0720		notify(ur); return ret;