1 /* reg.h 4.1 11/09/80 */ 2 /* 3 * Location of the users' stored 4 * registers relative to R0. 5 * Usage is u.u_ar0[XX]. 6 */ 7 #define R0 (-18) 8 #define R1 (-17) 9 #define R2 (-16) 10 #define R3 (-15) 11 #define R4 (-14) 12 #define R5 (-13) 13 #define R6 (-12) 14 #define R7 (-11) 15 #define R8 (-10) 16 #define R9 (-9) 17 #define R10 (-8) 18 #define R11 (-7) 19 #define R12 (-21) 20 #define R13 (-20) 21 22 #define AP (-21) 23 #define FP (-20) 24 #define SP (-5) 25 #define PS (-1) 26 #define PC (-2) 27