144 struct _cpu {  struct
146 	uint32_t nested;
149 	char *irq_stack;
152 	struct k_thread *current;
155 	struct k_thread *idle_thread;
158 	struct _ready_q ready_q;
164 	struct k_thread *metairq_preempted;
167 	uint8_t id;
170 	void *fp_ctx;
197 	struct _cpu_arch arch;  argument
200 typedef struct _cpu _cpu_t;  argument