usr/src/sys/tahoe/include/reg.h

/*
 *      @(#)reg.h       7.1 (Berkeley) %G%
 *      from reg.h      4.2     81/02/19
 */

/*
 * Location of the users' stored
 * registers relative to PSL of 'trap' and 'syscall'.
 * Usage is u.u_ar0[XX].
 */

#define PS      (-1)
#define PC      (-2)
/*              (-3)    */
/*              (-4)    */
#define RACL    (-5)
#define RACH    (-6)
/*              (-7)    */
/*              (-8)    */
#define SP      (-9)
#define R13     (-10)
#define FP      (-10)
#define R12     (-13)
#define R11     (-14)
#define R10     (-15)
#define R9      (-16)
#define R8      (-17)
#define R7      (-18)
#define R6      (-19)
#define R5      (-20)
#define R4      (-21)
#define R3      (-22)
#define R2      (-23)
#define R1      (-24)
#define R0      (-25)

#ifdef IPCREG
#define NIPCREG 18
int ipcreg[NIPCREG] =
        {R0,R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,FP,SP,PC,RACH,RACL};
#endif