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1.1 root 1: /*
2: * Copyright (c) 1982 Regents of the University of California
3: * @(#)instrs.h 4.5 6/9/83
4: */
5: /*
6: * Argument data types
7: *
8: * If you change these definitions, you must also change the tables
9: * in assizetab.c
10: */
11: #define TYPB 000 /* byte integer */
12: #define TYPW 001 /* word integer */
13: #define TYPL 002 /* long integer */
14: #define TYPQ 003 /* quad integer */
15: #define TYPO 004 /* octa integer */
16: #define TYPF 005 /* F float */
17: #define TYPD 006 /* D float */
18: #define TYPG 007 /* G float */
19: #define TYPH 010 /* H float */
20: #define TYPUNPACKED 011 /* when unpacked into mantissa & exponent */
21: #define TYPNONE 012 /* when nothing */
22: #define TYPLG 4 /* number of bits the above take up */
23:
24: #define TYPMASK ((1<<TYPLG)-1) /* the mask (assumes 2's comp arith) */
25: /*
26: * Constructors and extractors for argument access kinds and types
27: */
28: #define A_CONS(access, type) ((access) | (type))
29: #define A_ACCEXT(consed) ((consed) & (TYPMASK << TYPLG))
30: #define A_TYPEXT(consed) ((consed) & TYPMASK)
31:
32: /*
33: * Argument access types used to test validity of operands to operators
34: */
35: #define ACCR (1<<TYPLG) /* read */
36: #define ACCW (2<<TYPLG) /* write */
37: #define ACCB (4<<TYPLG) /* branch displacement */
38: #define ACCA (8<<TYPLG) /* address only */
39: #define ACCV (8<<TYPLG) /* address only */
40: #define ACCM (ACCR | ACCW) /* modify */
41: #define ACCI (ACCB | ACCR) /* XFC code */
42:
43: #define ACCESSMASK (ACCA | ACCR | ACCW | ACCB) /* the mask */
44:
45: /*
46: * Construction of TYPX and ACCX, to make the instrs table
47: * easy to use and read.
48: */
49: /*
50: * For real memory address
51: */
52: #define A_AB A_CONS(ACCA, TYPB)
53: #define A_AW A_CONS(ACCA, TYPW)
54: #define A_AL A_CONS(ACCA, TYPL)
55: #define A_AQ A_CONS(ACCA, TYPQ)
56: #define A_AO A_CONS(ACCA, TYPO)
57: #define A_AF A_CONS(ACCA, TYPF)
58: #define A_AD A_CONS(ACCA, TYPD)
59: #define A_AG A_CONS(ACCA, TYPG)
60: #define A_AH A_CONS(ACCA, TYPH)
61: /*
62: * For real memory addresses, or register addresses [sic]
63: *
64: * CHEAT! we just call these read access, since
65: * registers are allowed. All field instruction, except insv,
66: * are are read access fields.
67: */
68: #define A_VB A_CONS(ACCR, TYPB)
69: #define A_VW A_CONS(ACCR, TYPW)
70: #define A_VL A_CONS(ACCR, TYPL)
71: #define A_VQ A_CONS(ACCR, TYPQ)
72: #define A_VO A_CONS(ACCR, TYPO)
73: #define A_VF A_CONS(ACCR, TYPF)
74: #define A_VD A_CONS(ACCR, TYPD)
75: #define A_VG A_CONS(ACCR, TYPG)
76: #define A_VH A_CONS(ACCR, TYPH)
77: /*
78: * For branch displacement
79: */
80: #define A_BB A_CONS(ACCB, TYPB)
81: #define A_BW A_CONS(ACCB, TYPW)
82: /*
83: * For modification
84: */
85: #define A_MB A_CONS(ACCM, TYPB)
86: #define A_MW A_CONS(ACCM, TYPW)
87: #define A_ML A_CONS(ACCM, TYPL)
88: #define A_MF A_CONS(ACCM, TYPF)
89: #define A_MD A_CONS(ACCM, TYPD)
90: #define A_MG A_CONS(ACCM, TYPG)
91: #define A_MH A_CONS(ACCM, TYPH)
92: /*
93: * For reading
94: */
95: #define A_RB A_CONS(ACCR, TYPB)
96: #define A_RW A_CONS(ACCR, TYPW)
97: #define A_RL A_CONS(ACCR, TYPL)
98: #define A_RQ A_CONS(ACCR, TYPQ)
99: #define A_RO A_CONS(ACCR, TYPO)
100: #define A_RF A_CONS(ACCR, TYPF)
101: #define A_RD A_CONS(ACCR, TYPD)
102: #define A_RG A_CONS(ACCR, TYPG)
103: #define A_RH A_CONS(ACCR, TYPH)
104: /*
105: * For writing
106: */
107: #define A_WB A_CONS(ACCW, TYPB)
108: #define A_WW A_CONS(ACCW, TYPW)
109: #define A_WL A_CONS(ACCW, TYPL)
110: #define A_WQ A_CONS(ACCW, TYPQ)
111: #define A_WO A_CONS(ACCW, TYPO)
112: #define A_WF A_CONS(ACCW, TYPF)
113: #define A_WD A_CONS(ACCW, TYPD)
114: #define A_WG A_CONS(ACCW, TYPG)
115: #define A_WH A_CONS(ACCW, TYPH)
116:
117: #ifndef INSTTAB
118: /*
119: * Define what the entries in the table look like.
120: * This is only used for adb and sdb; not for as.
121: */
122: #define INSTTAB
123: struct insttab{
124: char *iname;
125: u_char eopcode;
126: u_char popcode;
127: char nargs;
128: u_char argtype[6];
129: } insttab[];
130:
131: #define OP(name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6) {name,eopcode,popdcode,nargs,a1,a2,a3,a4,a5,a6}
132:
133: #endif INSTTAB
134:
135: /*
136: * Definitions for the escape bytes
137: */
138: #define CORE 0
139: #define NEW 1
140: #define ESCD 0xfd
141: #define ESCF 0xff
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