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1.1 root 1: /* c2.h 1.3 86/08/14 */
2:
3: /*
4: * Header for object code improver
5: */
6:
7: /* tokens */
8: typedef enum {
9: NIL,
10: JBR, CBR, JMP, LABEL, DLABEL, EROU, JSW,
11: MOV, CLR, INC, DEC, TST, PUSH, CVT, MOVZ,
12: CMP, ADD, SUB, BIT, AND, OR, XOR, COM,
13: NEG, EMUL, MUL, DIV, EDIV, SHAL, SHAR,
14: SHL, SHR, CALLF, CALLS, CASE, ADDA, SUBA,
15: AOBLEQ, AOBLSS, MOVA, PUSHA, LDF, LNF, STF,
16: CMPF, CMPF2, TSTF, PUSHD, CVLF, CVFL, LDFD,
17: CVDF, NEGF, ADDF, SUBF, MULF, DIVF, SINF,
18: COSF, ATANF, LOGF, SQRTF, EXPF, MOVBLK,
19: MFPR, MTPR, PROBE, MOVO, TEXT, DATA, BSS,
20: ALIGN, END, LGEN, WGEN, SET, LCOMM, COMM
21: } OpCode;
22:
23: #define ord(e) ((int)(e))
24:
25: #define JEQ 0
26: #define JNE 1
27: #define JLE 2
28: #define JGE 3
29: #define JLT 4
30: #define JGT 5
31: /* rearranged for unsigned branches so that jxxu = jxx + 6 */
32: #define JLOS 8
33: #define JHIS 9
34: #define JLO 10
35: #define JHI 11
36:
37: #define JBC 12
38: #define JBS 13
39: #define RET 14
40:
41: #define BYTE 1
42: #define WORD 2
43: #define LONG 3
44: #define QUAD 4
45: #define FLOAT 5
46: #define DOUBLE 6
47: #define OP2 7
48: #define OP3 8
49: #define OPB 9
50: #define OPX 10
51:
52: #define has2ops(p) (((p)->subop>>4) == OP2)
53: #define has3ops(p) (((p)->subop>>4) == OP3)
54:
55: /* #define T(a,b) (a|((b)<<8)) NUXI problems */
56: #define U(a,b) (a|((b)<<4))
57:
58: #define C2_ASIZE 128
59:
60: struct optab {
61: char opstring[7];
62: OpCode opcod;
63: unsigned char subopcod;
64: } optab[];
65:
66: struct node {
67: OpCode op;
68: unsigned char subop;
69: short refc;
70: struct node *forw;
71: struct node *back;
72: struct node *ref;
73: char *code;
74: struct optab *pop;
75: long labno;
76: short seq;
77: };
78:
79: struct intleavetab {
80: OpCode op;
81: unsigned char subop;
82: int intleavect;
83: } intltab[];
84:
85: /* struct { NUXI problems
86: short combop;
87: }; */
88:
89: char line[512];
90: struct node first;
91: char *curlp;
92: int nbrbr;
93: int nsaddr;
94: int redunm;
95: int iaftbr;
96: int njp1;
97: int nrlab;
98: int nxjump;
99: int ncmot;
100: int nrevbr;
101: int loopiv;
102: int nredunj;
103: int nskip;
104: int ncomj;
105: int naob;
106: int nrtst;
107: int nbj;
108: int nst;
109: int nld;
110:
111: int nchange;
112: int isn;
113: int debug;
114: int fortflg;
115: int aobflag;
116: char *lasta;
117: char *lastr;
118: char *firstr;
119: char revbr[];
120: #define NREG 13
121: /* 0-12, f.p. accumulator, 4 for operands, 1 for running off end */
122: char *regs[NREG+6];
123: char conloc[C2_ASIZE];
124: char conval[C2_ASIZE];
125: char ccloc[C2_ASIZE];
126:
127: #define ACC NREG
128: #define RT1 NREG+1
129: #define RT2 NREG+2
130: #define RT3 NREG+3
131: #define RT4 NREG+4
132: #define LABHS 127
133:
134: #define MAXAOBDISP 5000
135:
136: #define NUSE 6
137: #define tempreg(s,r) ((unsigned)((r)=isreg(s)) < NUSE)
138:
139: struct node *uses[NUSE + 7]; /* for backwards flow analysis */
140: struct node *useacc; /* same for acc */
141: char *lastrand; /* last operand of instruction */
142: struct node *bflow();
143: char *copy();
144: long getnum();
145: struct node *codemove();
146: struct node *insertl();
147: struct node *nonlab();
148: struct node *alloc();
149: char *findcon();
150: char *byondrd();
151: #define equstr !strcmp
152: #define COPYCODE
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