reg.h

著名的AT&T UNIX v6 源码

/*
 * Location of the users' stored
 * registers relative to R0.
 * Usage is u.u_ar0[XX].
 */
#define	R0	0
#define	R1	1
#define	R2	2
#define	R3	3
#define	R4	4
#define	R5	5
#define	R6	6
#define	R7	7
#define	R8	8
#define	R9	9
#define	R10	10
#define	R11	11
#define	R12	12
#define	R13	13

#define AP	12
#define	FP	13
#define	SP	14
#define	PS	18
#define	PC	17