1 /* 2 * Copyright (c) 1982 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)instrs.h 5.1 (Berkeley) 04/30/85 7 */ 8 9 /* 10 * Argument data types 11 * 12 * If you change these definitions, you must also change the tables 13 * in assizetab.c 14 */ 15 #define TYPB 000 /* byte integer */ 16 #define TYPW 001 /* word integer */ 17 #define TYPL 002 /* long integer */ 18 #define TYPQ 003 /* quad integer */ 19 #define TYPO 004 /* octa integer */ 20 #define TYPF 005 /* F float */ 21 #define TYPD 006 /* D float */ 22 #define TYPG 007 /* G float */ 23 #define TYPH 010 /* H float */ 24 #define TYPUNPACKED 011 /* when unpacked into mantissa & exponent */ 25 #define TYPNONE 012 /* when nothing */ 26 #define TYPLG 4 /* number of bits the above take up */ 27 28 #define TYPMASK ((1<<TYPLG)-1) /* the mask (assumes 2's comp arith) */ 29 /* 30 * Constructors and extractors for argument access kinds and types 31 */ 32 #define A_CONS(access, type) ((access) | (type)) 33 #define A_ACCEXT(consed) ((consed) & (TYPMASK << TYPLG)) 34 #define A_TYPEXT(consed) ((consed) & TYPMASK) 35 36 /* 37 * Argument access types used to test validity of operands to operators 38 */ 39 #define ACCR (1<<TYPLG) /* read */ 40 #define ACCW (2<<TYPLG) /* write */ 41 #define ACCB (4<<TYPLG) /* branch displacement */ 42 #define ACCA (8<<TYPLG) /* address only */ 43 #define ACCV (8<<TYPLG) /* address only */ 44 #define ACCM (ACCR | ACCW) /* modify */ 45 #define ACCI (ACCB | ACCR) /* XFC code */ 46 47 #define ACCESSMASK (ACCA | ACCR | ACCW | ACCB) /* the mask */ 48 49 /* 50 * Construction of TYPX and ACCX, to make the instrs table 51 * easy to use and read. 52 */ 53 /* 54 * For real memory address 55 */ 56 #define A_AB A_CONS(ACCA, TYPB) 57 #define A_AW A_CONS(ACCA, TYPW) 58 #define A_AL A_CONS(ACCA, TYPL) 59 #define A_AQ A_CONS(ACCA, TYPQ) 60 #define A_AO A_CONS(ACCA, TYPO) 61 #define A_AF A_CONS(ACCA, TYPF) 62 #define A_AD A_CONS(ACCA, TYPD) 63 #define A_AG A_CONS(ACCA, TYPG) 64 #define A_AH A_CONS(ACCA, TYPH) 65 /* 66 * For real memory addresses, or register addresses [sic] 67 * 68 * CHEAT! we just call these read access, since 69 * registers are allowed. All field instruction, except insv, 70 * are are read access fields. 71 */ 72 #define A_VB A_CONS(ACCR, TYPB) 73 #define A_VW A_CONS(ACCR, TYPW) 74 #define A_VL A_CONS(ACCR, TYPL) 75 #define A_VQ A_CONS(ACCR, TYPQ) 76 #define A_VO A_CONS(ACCR, TYPO) 77 #define A_VF A_CONS(ACCR, TYPF) 78 #define A_VD A_CONS(ACCR, TYPD) 79 #define A_VG A_CONS(ACCR, TYPG) 80 #define A_VH A_CONS(ACCR, TYPH) 81 /* 82 * For branch displacement 83 */ 84 #define A_BB A_CONS(ACCB, TYPB) 85 #define A_BW A_CONS(ACCB, TYPW) 86 /* 87 * For modification 88 */ 89 #define A_MB A_CONS(ACCM, TYPB) 90 #define A_MW A_CONS(ACCM, TYPW) 91 #define A_ML A_CONS(ACCM, TYPL) 92 #define A_MF A_CONS(ACCM, TYPF) 93 #define A_MD A_CONS(ACCM, TYPD) 94 #define A_MG A_CONS(ACCM, TYPG) 95 #define A_MH A_CONS(ACCM, TYPH) 96 /* 97 * For reading 98 */ 99 #define A_RB A_CONS(ACCR, TYPB) 100 #define A_RW A_CONS(ACCR, TYPW) 101 #define A_RL A_CONS(ACCR, TYPL) 102 #define A_RQ A_CONS(ACCR, TYPQ) 103 #define A_RO A_CONS(ACCR, TYPO) 104 #define A_RF A_CONS(ACCR, TYPF) 105 #define A_RD A_CONS(ACCR, TYPD) 106 #define A_RG A_CONS(ACCR, TYPG) 107 #define A_RH A_CONS(ACCR, TYPH) 108 /* 109 * For writing 110 */ 111 #define A_WB A_CONS(ACCW, TYPB) 112 #define A_WW A_CONS(ACCW, TYPW) 113 #define A_WL A_CONS(ACCW, TYPL) 114 #define A_WQ A_CONS(ACCW, TYPQ) 115 #define A_WO A_CONS(ACCW, TYPO) 116 #define A_WF A_CONS(ACCW, TYPF) 117 #define A_WD A_CONS(ACCW, TYPD) 118 #define A_WG A_CONS(ACCW, TYPG) 119 #define A_WH A_CONS(ACCW, TYPH) 120 121 #ifndef INSTTAB 122 /* 123 * Define what the entries in the table look like. 124 * This is only used for adb and sdb; not for as. 125 */ 126 #define INSTTAB 127 struct insttab{ 128 char *iname; 129 u_char eopcode; 130 u_char popcode; 131 char nargs; 132 u_char argtype[6]; 133 } insttab[]; 134 135 #define OP(name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6) {name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6} 136 137 #endif INSTTAB 138 139 /* 140 * Definitions for the escape bytes 141 */ 142 #define CORE 0 143 #define NEW 1 144 #define ESCD 0xfd 145 #define ESCF 0xff 146