INSTR_VALID
return (lwp->lwp_pcb.pcb_flags & INSTR_VALID);
lwp->lwp_pcb.pcb_flags |= INSTR_VALID;
lwp->lwp_pcb.pcb_flags &= ~INSTR_VALID;
return (lwp->lwp_pcb.pcb_flags & INSTR_VALID);
return (lwp->lwp_pcb.pcb_flags & INSTR_VALID);
lwp->lwp_pcb.pcb_flags |= INSTR_VALID;
lwp->lwp_pcb.pcb_flags &= ~INSTR_VALID;