44 struct pcb {  struct
45 	register_t	pcb_context[20];	/* non-volatile r12-r31 */  argument
46 	register_t	pcb_cr;			/* Condition register */  argument
47 	register_t	pcb_sp;			/* stack pointer */  argument
48 	register_t	pcb_toc;		/* toc pointer */  argument
49 	register_t	pcb_lr;			/* link register */  argument
50 	register_t	pcb_dscr;		/* dscr value */  argument
51 	register_t	pcb_fscr;  argument
52 	register_t	pcb_tar;  argument
53 	struct		pmap *pcb_pm;		/* pmap of our vmspace */  argument
54 	jmp_buf		*pcb_onfault;		/* For use during  argument
56 	int		pcb_flags;  argument
73 	} pcb_fpu;		/* Floating point processor */  argument
74 	unsigned int	pcb_fpcpu;		/* which CPU had our FPU  argument
81 	} pcb_vec __aligned(16);	/* Vector processor */  argument
82 	unsigned int	pcb_veccpu;		/* which CPU had our vector  argument
88 	} pcb_htm;  argument
94 	} pcb_ebb;  argument
99 	} pcb_lm;  argument
109 	} pcb_cpu;  argument
110 	vm_offset_t pcb_lastill;	/* Last illegal instruction */  argument
119 extern struct pcb *curpcb;  argument