@samitouri / QOSamiQemu
Code Commits Issues Pulls Sessions CI/CD
master
master
c 152 lines 4.22 KB
Raw
1 /*
2 * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 /*
19 * This program generates the encodings file that is processed by
20 * the dectree.py script to produce the decoding tree. We use the C
21 * preprocessor to manipulate the files imported from the Hexagon
22 * architecture library.
23 */
24 #include <stdio.h>
25 #include <string.h>
26 #include "opcodes.h"
27
28 #define STRINGIZE(X) #X
29
30 const char * const opcode_names[] = {
31 #define OPCODE(IID) STRINGIZE(IID)
32 #include "opcodes_def_generated.h.inc"
33 NULL
34 #undef OPCODE
35 };
36
37 /*
38 * Process the instruction definitions
39 * Scalar core instructions have the following form
40 * Q6INSN(A2_add,"Rd32=add(Rs32,Rt32)",ATTRIBS(),
41 * "Add 32-bit registers",
42 * { RdV=RsV+RtV;})
43 * HVX instructions have the following form
44 * EXTINSN(V6_vinsertwr, "Vx32.w=vinsert(Rt32)",
45 * ATTRIBS(A_EXTENSION,A_CVI,A_CVI_VX,A_CVI_LATE),
46 * "Insert Word Scalar into Vector",
47 * VxV.uw[0] = RtV;)
48 */
49 const char * const opcode_syntax[XX_LAST_OPCODE] = {
50 #define Q6INSN(TAG, BEH, ATTRIBS, DESCR, SEM) \
51 [TAG] = BEH,
52 #define EXTINSN(TAG, BEH, ATTRIBS, DESCR, SEM) \
53 [TAG] = BEH,
54 #include "imported/allidefs.def"
55 #undef Q6INSN
56 #undef EXTINSN
57 };
58
59 const OpcodeEncoding opcode_encodings[] = {
60 #define DEF_ENC32(TAG, ENCSTR) \
61 [TAG] = { .encoding = ENCSTR },
62 #define DEF_ENC_SUBINSN(TAG, CLASS, ENCSTR) \
63 [TAG] = { .encoding = ENCSTR, .enc_class = CLASS },
64 #define DEF_EXT_ENC(TAG, CLASS, ENCSTR) \
65 [TAG] = { .encoding = ENCSTR, .enc_class = CLASS },
66 #include "imported/encode.def"
67 #undef DEF_ENC32
68 #undef DEF_ENC_SUBINSN
69 #undef DEF_EXT_ENC
70 };
71
72 static const char * const opcode_enc_class_names[XX_LAST_ENC_CLASS] = {
73 "NORMAL",
74 "16BIT",
75 "SUBINSN_A",
76 "SUBINSN_L1",
77 "SUBINSN_L2",
78 "SUBINSN_S1",
79 "SUBINSN_S2",
80 "EXT_noext",
81 "EXT_mmvec",
82 };
83
84 static const char *get_opcode_enc(int opcode)
85 {
86 const char *tmp = opcode_encodings[opcode].encoding;
87 if (tmp == NULL) {
88 tmp = "MISSING ENCODING";
89 }
90 return tmp;
91 }
92
93 static const char *get_opcode_enc_class(int opcode)
94 {
95 const char *tmp = opcode_encodings[opcode].encoding;
96 if (tmp == NULL) {
97 const char *test = "V6_"; /* HVX */
98 const char *name = opcode_names[opcode];
99 if (strncmp(name, test, strlen(test)) == 0) {
100 return "EXT_mmvec";
101 }
102 }
103 return opcode_enc_class_names[opcode_encodings[opcode].enc_class];
104 }
105
106 static void gen_iset_table(FILE *out)
107 {
108 int i;
109
110 fprintf(out, "iset = {\n");
111 for (i = 0; i < XX_LAST_OPCODE; i++) {
112 fprintf(out, "\t\'%s\' : {\n", opcode_names[i]);
113 fprintf(out, "\t\t\'tag\' : \'%s\',\n", opcode_names[i]);
114 fprintf(out, "\t\t\'syntax\' : \'%s\',\n", opcode_syntax[i]);
115 fprintf(out, "\t\t\'enc\' : \'%s\',\n", get_opcode_enc(i));
116 fprintf(out, "\t\t\'enc_class\' : \'%s\',\n", get_opcode_enc_class(i));
117 fprintf(out, "\t},\n");
118 }
119 fprintf(out, "};\n\n");
120 }
121
122 static void gen_tags_list(FILE *out)
123 {
124 int i;
125
126 fprintf(out, "tags = [\n");
127 for (i = 0; i < XX_LAST_OPCODE; i++) {
128 fprintf(out, "\t\'%s\',\n", opcode_names[i]);
129 }
130 fprintf(out, "];\n\n");
131 }
132
133 int main(int argc, char *argv[])
134 {
135 FILE *outfile;
136
137 if (argc != 2) {
138 fprintf(stderr, "Usage: gen_dectree_import ouptputfile\n");
139 return 1;
140 }
141 outfile = fopen(argv[1], "w");
142 if (outfile == NULL) {
143 fprintf(stderr, "Cannot open %s for writing\n", argv[1]);
144 return 1;
145 }
146
147 gen_iset_table(outfile);
148 gen_tags_list(outfile);
149
150 fclose(outfile);
151 return 0;
152 }