1 /* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
2 Copyright (C) 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
5 This file is part of GDB, GAS, and the GNU binutils.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
26 /* ARCHBITS_ESA and ARCH_ESAME correspond to the bit numbers defined
27 by s390_opcode_arch_val in include/opcode/s390.h:
28 ARCHBITS_ESAONLY = (1<<S390_OPCODE_ESA)
29 ARCHBITS_ESA = (1<<S390_OPCODE_ESA) + (1<<S390_OPCODE_ESAME)
30 ARCHBITS_ESA = (1<<S390_OPCODE_ESAME). */
31 #define ARCHBITS_ESAONLY 1
32 #define ARCHBITS_ESA 3
33 #define ARCHBITS_ESAME 2
40 unsigned long long sort_value;
44 struct op_struct *op_array;
52 op_array = malloc(max_ops*sizeof(struct op_struct));
57 * `insertOpcode': insert an op_struct into sorted opcode array
60 insertOpcode(char *opcode, char *mnemonic, char *format, int archbits)
63 unsigned long long sort_value;
67 while (no_ops >= max_ops) {
69 op_array = realloc(op_array, max_ops*sizeof(struct op_struct));
73 for (ix = 0; ix < 16; ix++) {
74 if (*str >= '0' && *str <= '9')
75 sort_value = (sort_value << 4) + (*str - '0');
76 else if (*str >= 'a' && *str <= 'f')
77 sort_value = (sort_value << 4) + (*str - 'a' + 10);
78 else if (*str >= 'A' && *str <= 'F')
79 sort_value = (sort_value << 4) + (*str - 'A' + 10);
86 sort_value <<= 4*(16 - ix);
88 for (ix = 0; ix < no_ops; ix++)
89 if (sort_value > op_array[ix].sort_value)
91 for (k = no_ops; k > ix; k--)
92 op_array[k] = op_array[k-1];
93 strcpy(op_array[ix].opcode, opcode);
94 strcpy(op_array[ix].mnemonic, mnemonic);
95 strcpy(op_array[ix].format, format);
96 op_array[ix].sort_value = sort_value;
97 op_array[ix].no_nibbles = no_nibbles;
98 op_array[ix].archbits = archbits;
104 * `dumpTable': write opcode table
112 /* Write hash table entries (slots). */
113 printf("const struct s390_opcode s390_opcodes[] = {\n");
114 for (ix = 0; ix < no_ops; ix++) {
115 printf(" { \"%s\", ", op_array[ix].mnemonic);
116 for (str = op_array[ix].opcode; *str != 0; str++)
119 printf("OP%i(0x%sLL), ",
120 op_array[ix].no_nibbles*4, op_array[ix].opcode);
121 printf("MASK_%s, INSTR_%s, ",
122 op_array[ix].format, op_array[ix].format);
123 printf("%i}", op_array[ix].archbits);
130 printf("const int s390_num_opcodes =\n");
131 printf(" sizeof (s390_opcodes) / sizeof (s390_opcodes[0]);\n\n");
138 char currentLine[256];
141 /* Read opcode descriptions from `stdin'. For each mnemonic,
142 * make an entry into the opcode table.
144 while (fgets(currentLine, sizeof(currentLine), stdin) != NULL) {
148 char description[64];
152 if (currentLine[0] == '#')
154 memset(opcode, 0, 8);
155 if (sscanf(currentLine, "%15s %15s %15s \"%[^\"]\" %15s",
156 opcode, mnemonic, format, description, archtag) == 5) {
157 if (strcmp(archtag, "esaonly") == 0)
158 archbits = ARCHBITS_ESAONLY;
159 else if (strcmp(archtag, "esa") == 0)
160 archbits = ARCHBITS_ESA;
161 else if (strcmp(archtag, "esame") == 0)
162 archbits = ARCHBITS_ESAME;
165 insertOpcode(opcode, mnemonic, format, archbits);
167 fprintf(stderr, "Couldn't scan line %s\n", currentLine);