V8/usr/src/cmd/adb/regs.h

/*
 * saved register offsets in the pcb
 */

#include <sys/param.h>

/* the quantities involving ctob() are located in the kernel stack. */
/* the others are in the pcb. */
#define KSP	0
#define ESP	4
#define SSP	8
#define USP	(ctob(UPAGES)-5*sizeof(int))
#define R0	(ctob(UPAGES)-18*sizeof(int))
#define R1	(ctob(UPAGES)-17*sizeof(int))
#define R2	(ctob(UPAGES)-16*sizeof(int))
#define R3	(ctob(UPAGES)-15*sizeof(int))
#define R4	(ctob(UPAGES)-14*sizeof(int))
#define R5	(ctob(UPAGES)-13*sizeof(int))
#define R6	(ctob(UPAGES)-12*sizeof(int))
#define R7	(ctob(UPAGES)-11*sizeof(int))
#define R8	(ctob(UPAGES)-10*sizeof(int))
#define R9	(ctob(UPAGES)-9*sizeof(int))
#define R10	(ctob(UPAGES)-8*sizeof(int))
#define R11	(ctob(UPAGES)-7*sizeof(int))
#define AP	(ctob(UPAGES)-21*sizeof(int))
#define FP	(ctob(UPAGES)-20*sizeof(int))
#define PC	(ctob(UPAGES)-2*sizeof(int))
#define PSL	(ctob(UPAGES)-1*sizeof(int))
#define P0BR	80
#define P0LR	84
#define P1BR	88
#define P1LR	92
#define	BADREG	(-1)		/* guaranteed not a valid reg offset */

#define	MAXREG	11		/* biggest register number in stabs */
#define	MINREG	0		/* smallest reg number */