1990/08163/gnot/trap.c (diff list | history)

1990/0816/sys/src/9/gnot/trap.c:243,248 – 1990/08163/sys/src/9/gnot/trap.c:243,249 (short | long | prev | next)
1990/03091		ulong r0; Ureg *ur;
1990/0513		char *msg;
1990/08163		long fpnull = 0;
1990/03091		u->p->insyscall = 1; ur = aur;
1990/0816/sys/src/9/gnot/trap.c:249,264 – 1990/08163/sys/src/9/gnot/trap.c:250,268
1990/0312		u->p->pc = ur->pc;
1990/03091		if(ur->sr & SUPER) panic("recursive system call"); #ifdef asdf /* * since the system call interface does not * guarantee anything about registers
1990/08163		* guarantee anything about registers, but the fpcr is more than * just a register... BUG
1990/03091		*/ if(u->p->fpstate == FPactive) { u->p->fpstate = FPinit; /* BUG */ ur->status &= ~CU1;
1990/08163		splhi(); fpsave(&u->fpsave); if(u->p->fpstate==FPactive || u->fpsave.type){ fprestore((FPsave*)&fpnull); u->p->fpstate = FPinit; m->fpstate = FPinit;
1990/03091		} #endif
1990/08163		spllo();
1990/03091		r0 = ur->r0; sp = ur->usp;