/* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
- Copyright 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
- This file is part of GDB, GAS, and the GNU binutils.
+ This file is part of the GNU opcodes library.
- This program is free software; you can redistribute it and/or modify
+ This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ It is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ along with this file; see the file COPYING. If not, write to the
+ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include "opcode/s390.h"
-/* ARCHBITS_ESA and ARCH_ESAME correspond to the bit numbers defined
- by s390_opcode_arch_val in include/opcode/s390.h:
- ARCHBITS_ESAONLY = (1<<S390_OPCODE_ESA)
- ARCHBITS_ESA = (1<<S390_OPCODE_ESA) + (1<<S390_OPCODE_ESAME)
- ARCHBITS_ESA = (1<<S390_OPCODE_ESAME). */
-#define ARCHBITS_ESAONLY 1
-#define ARCHBITS_ESA 3
-#define ARCHBITS_ESAME 2
-
-struct op_struct {
- char opcode[16];
- char mnemonic[16];
- char format[16];
- int archbits;
- unsigned long long sort_value;
- int no_nibbles;
-};
+struct op_struct
+ {
+ char opcode[16];
+ char mnemonic[16];
+ char format[16];
+ int mode_bits;
+ int min_cpu;
+ int flags;
+
+ unsigned long long sort_value;
+ int no_nibbles;
+ };
struct op_struct *op_array;
int max_ops;
int no_ops;
static void
-createTable(void)
+createTable (void)
{
- max_ops = 256;
- op_array = malloc(max_ops*sizeof(struct op_struct));
- no_ops = 0;
+ max_ops = 256;
+ op_array = malloc (max_ops * sizeof (struct op_struct));
+ no_ops = 0;
}
-/*
- * `insertOpcode': insert an op_struct into sorted opcode array
- */
+/* `insertOpcode': insert an op_struct into sorted opcode array. */
+
static void
-insertOpcode(char *opcode, char *mnemonic, char *format, int archbits)
+insertOpcode (char *opcode, char *mnemonic, char *format,
+ int min_cpu, int mode_bits, int flags)
{
- char *str;
- unsigned long long sort_value;
- int no_nibbles;
- int ix, k;
+ char *str;
+ unsigned long long sort_value;
+ int no_nibbles;
+ int ix, k;
- while (no_ops >= max_ops) {
- max_ops = max_ops*2;
- op_array = realloc(op_array, max_ops*sizeof(struct op_struct));
+ while (no_ops >= max_ops)
+ {
+ max_ops = max_ops * 2;
+ op_array = realloc (op_array, max_ops * sizeof (struct op_struct));
}
- sort_value = 0;
- str = opcode;
- for (ix = 0; ix < 16; ix++) {
+
+ sort_value = 0;
+ str = opcode;
+ for (ix = 0; ix < 16; ix++)
+ {
if (*str >= '0' && *str <= '9')
sort_value = (sort_value << 4) + (*str - '0');
else if (*str >= 'a' && *str <= 'f')
sort_value <<= 4;
else
break;
- str++;
+ str ++;
}
- sort_value <<= 4*(16 - ix);
- no_nibbles = ix;
- for (ix = 0; ix < no_ops; ix++)
- if (sort_value > op_array[ix].sort_value)
- break;
- for (k = no_ops; k > ix; k--)
- op_array[k] = op_array[k-1];
- strcpy(op_array[ix].opcode, opcode);
- strcpy(op_array[ix].mnemonic, mnemonic);
- strcpy(op_array[ix].format, format);
- op_array[ix].sort_value = sort_value;
- op_array[ix].no_nibbles = no_nibbles;
- op_array[ix].archbits = archbits;
- no_ops++;
+ sort_value <<= 4*(16 - ix);
+ sort_value += (min_cpu << 8) + mode_bits;
+ no_nibbles = ix;
+ for (ix = 0; ix < no_ops; ix++)
+ if (sort_value > op_array[ix].sort_value)
+ break;
+ for (k = no_ops; k > ix; k--)
+ op_array[k] = op_array[k-1];
+ strcpy(op_array[ix].opcode, opcode);
+ strcpy(op_array[ix].mnemonic, mnemonic);
+ strcpy(op_array[ix].format, format);
+ op_array[ix].sort_value = sort_value;
+ op_array[ix].no_nibbles = no_nibbles;
+ op_array[ix].min_cpu = min_cpu;
+ op_array[ix].mode_bits = mode_bits;
+ op_array[ix].flags = flags;
+ no_ops++;
}
+struct s390_cond_ext_format
+{
+ char nibble;
+ char extension[4];
+};
+
+/* The mnemonic extensions for conditional jumps used to replace
+ the '*' tag. */
+#define NUM_COND_EXTENSIONS 20
+const struct s390_cond_ext_format s390_cond_extensions[NUM_COND_EXTENSIONS] =
+{ { '1', "o" }, /* jump on overflow / if ones */
+ { '2', "h" }, /* jump on A high */
+ { '2', "p" }, /* jump on plus */
+ { '3', "nle" }, /* jump on not low or equal */
+ { '4', "l" }, /* jump on A low */
+ { '4', "m" }, /* jump on minus / if mixed */
+ { '5', "nhe" }, /* jump on not high or equal */
+ { '6', "lh" }, /* jump on low or high */
+ { '7', "ne" }, /* jump on A not equal B */
+ { '7', "nz" }, /* jump on not zero / if not zeros */
+ { '8', "e" }, /* jump on A equal B */
+ { '8', "z" }, /* jump on zero / if zeros */
+ { '9', "nlh" }, /* jump on not low or high */
+ { 'a', "he" }, /* jump on high or equal */
+ { 'b', "nl" }, /* jump on A not low */
+ { 'b', "nm" }, /* jump on not minus / if not mixed */
+ { 'c', "le" }, /* jump on low or equal */
+ { 'd', "nh" }, /* jump on A not high */
+ { 'd', "np" }, /* jump on not plus */
+ { 'e', "no" }, /* jump on not overflow / if not ones */
+};
+
+/* The mnemonic extensions for conditional branches used to replace
+ the '$' tag. */
+#define NUM_CRB_EXTENSIONS 12
+const struct s390_cond_ext_format s390_crb_extensions[NUM_CRB_EXTENSIONS] =
+{ { '2', "h" }, /* jump on A high */
+ { '2', "nle" }, /* jump on not low or equal */
+ { '4', "l" }, /* jump on A low */
+ { '4', "nhe" }, /* jump on not high or equal */
+ { '6', "ne" }, /* jump on A not equal B */
+ { '6', "lh" }, /* jump on low or high */
+ { '8', "e" }, /* jump on A equal B */
+ { '8', "nlh" }, /* jump on not low or high */
+ { 'a', "nl" }, /* jump on A not low */
+ { 'a', "he" }, /* jump on high or equal */
+ { 'c', "nh" }, /* jump on A not high */
+ { 'c', "le" }, /* jump on low or equal */
+};
+
+/* As with insertOpcode instructions are added to the sorted opcode
+ array. Additionally mnemonics containing the '*<number>' tag are
+ expanded to the set of conditional instructions described by
+ s390_cond_extensions with the tag replaced by the respective
+ mnemonic extensions. */
-/*
- * `dumpTable': write opcode table
- */
static void
-dumpTable(void)
+insertExpandedMnemonic (char *opcode, char *mnemonic, char *format,
+ int min_cpu, int mode_bits, int flags)
{
- char *str;
- int ix;
+ char *tag;
+ char prefix[15];
+ char suffix[15];
+ char number[15];
+ int mask_start, i = 0, tag_found = 0, reading_number = 0;
+ int number_p = 0, suffix_p = 0, prefix_p = 0;
+ const struct s390_cond_ext_format *ext_table;
+ int ext_table_length;
+
+ if (!(tag = strpbrk (mnemonic, "*$")))
+ {
+ insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits, flags);
+ return;
+ }
+
+ while (mnemonic[i] != '\0')
+ {
+ if (mnemonic[i] == *tag)
+ {
+ if (tag_found)
+ goto malformed_mnemonic;
+
+ tag_found = 1;
+ reading_number = 1;
+ }
+ else
+ switch (mnemonic[i])
+ {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ if (!tag_found || !reading_number)
+ goto malformed_mnemonic;
+
+ number[number_p++] = mnemonic[i];
+ break;
+
+ default:
+ if (reading_number)
+ {
+ if (!number_p)
+ goto malformed_mnemonic;
+ else
+ reading_number = 0;
+ }
+
+ if (tag_found)
+ suffix[suffix_p++] = mnemonic[i];
+ else
+ prefix[prefix_p++] = mnemonic[i];
+ }
+ i++;
+ }
+
+ prefix[prefix_p] = '\0';
+ suffix[suffix_p] = '\0';
+ number[number_p] = '\0';
+
+ if (sscanf (number, "%d", &mask_start) != 1)
+ goto malformed_mnemonic;
- /* Write hash table entries (slots). */
- printf("const struct s390_opcode s390_opcodes[] = {\n");
- for (ix = 0; ix < no_ops; ix++) {
- printf(" { \"%s\", ", op_array[ix].mnemonic);
+ if (mask_start & 3)
+ {
+ fprintf (stderr, "Conditional mask not at nibble boundary in: %s\n",
+ mnemonic);
+ return;
+ }
+
+ mask_start >>= 2;
+
+ switch (*tag)
+ {
+ case '*':
+ ext_table = s390_cond_extensions;
+ ext_table_length = NUM_COND_EXTENSIONS;
+ break;
+ case '$':
+ ext_table = s390_crb_extensions;
+ ext_table_length = NUM_CRB_EXTENSIONS;
+ break;
+ default: fprintf (stderr, "Unknown tag char: %c\n", *tag);
+ }
+
+ for (i = 0; i < ext_table_length; i++)
+ {
+ char new_mnemonic[15];
+
+ strcpy (new_mnemonic, prefix);
+ opcode[mask_start] = ext_table[i].nibble;
+ strcat (new_mnemonic, ext_table[i].extension);
+ strcat (new_mnemonic, suffix);
+ insertOpcode (opcode, new_mnemonic, format, min_cpu, mode_bits, flags);
+ }
+ return;
+
+ malformed_mnemonic:
+ fprintf (stderr, "Malformed mnemonic: %s\n", mnemonic);
+}
+
+static const char file_header[] =
+ "/* The opcode table. This file was generated by s390-mkopc.\n\n"
+ " The format of the opcode table is:\n\n"
+ " NAME OPCODE MASK OPERANDS\n\n"
+ " Name is the name of the instruction.\n"
+ " OPCODE is the instruction opcode.\n"
+ " MASK is the opcode mask; this is used to tell the disassembler\n"
+ " which bits in the actual opcode must match OPCODE.\n"
+ " OPERANDS is the list of operands.\n\n"
+ " The disassembler reads the table in order and prints the first\n"
+ " instruction which matches.\n"
+ " MODE_BITS - zarch or esa\n"
+ " MIN_CPU - number of the min cpu level required\n"
+ " FLAGS - instruction flags. */\n\n"
+ "const struct s390_opcode s390_opcodes[] =\n {\n";
+
+/* `dumpTable': write opcode table. */
+
+static void
+dumpTable (void)
+{
+ char *str;
+ int ix;
+
+ /* Write hash table entries (slots). */
+ printf ("%s", file_header);
+
+ for (ix = 0; ix < no_ops; ix++)
+ {
+ printf (" { \"%s\", ", op_array[ix].mnemonic);
for (str = op_array[ix].opcode; *str != 0; str++)
if (*str == '?')
*str = '0';
- printf("OP%i(0x%sLL), ",
- op_array[ix].no_nibbles*4, op_array[ix].opcode);
- printf("MASK_%s, INSTR_%s, ",
- op_array[ix].format, op_array[ix].format);
- printf("%i}", op_array[ix].archbits);
+ printf ("OP%i(0x%sLL), ",
+ op_array[ix].no_nibbles*4, op_array[ix].opcode);
+ printf ("MASK_%s, INSTR_%s, ",
+ op_array[ix].format, op_array[ix].format);
+ printf ("%i, ", op_array[ix].mode_bits);
+ printf ("%i, ", op_array[ix].min_cpu);
+ printf ("%i}", op_array[ix].flags);
if (ix < no_ops-1)
- printf(",\n");
+ printf (",\n");
else
- printf("\n");
+ printf ("\n");
}
- printf("};\n\n");
- printf("const int s390_num_opcodes =\n");
- printf(" sizeof (s390_opcodes) / sizeof (s390_opcodes[0]);\n\n");
+ printf ("};\n\n");
+ printf ("const int s390_num_opcodes =\n");
+ printf (" sizeof (s390_opcodes) / sizeof (s390_opcodes[0]);\n\n");
}
-
int
-main(void)
+main (void)
{
- char currentLine[256];
+ char currentLine[256];
+
+ createTable ();
- createTable();
- /* Read opcode descriptions from `stdin'. For each mnemonic,
- * make an entry into the opcode table.
- */
- while (fgets(currentLine, sizeof(currentLine), stdin) != NULL) {
+ /* Read opcode descriptions from `stdin'. For each mnemonic,
+ make an entry into the opcode table. */
+ while (fgets (currentLine, sizeof (currentLine), stdin) != NULL)
+ {
char opcode[16];
char mnemonic[16];
char format[16];
- char description[64];
- char archtag[16];
- int archbits;
-
- if (currentLine[0] == '#')
- continue;
- memset(opcode, 0, 8);
- if (sscanf(currentLine, "%15s %15s %15s \"%[^\"]\" %15s",
- opcode, mnemonic, format, description, archtag) == 5) {
- if (strcmp(archtag, "esaonly") == 0)
- archbits = ARCHBITS_ESAONLY;
- else if (strcmp(archtag, "esa") == 0)
- archbits = ARCHBITS_ESA;
- else if (strcmp(archtag, "esame") == 0)
- archbits = ARCHBITS_ESAME;
- else
- archbits = 0;
- insertOpcode(opcode, mnemonic, format, archbits);
- } else
- fprintf(stderr, "Couldn't scan line %s\n", currentLine);
+ char description[80];
+ char cpu_string[16];
+ char modes_string[16];
+ char flags_string[80];
+ int min_cpu;
+ int mode_bits;
+ int flag_bits;
+ int num_matched;
+ char *str;
+
+ if (currentLine[0] == '#' || currentLine[0] == '\n')
+ continue;
+ memset (opcode, 0, 8);
+ num_matched =
+ sscanf (currentLine, "%15s %15s %15s \"%79[^\"]\" %15s %15s %79[^\n]",
+ opcode, mnemonic, format, description,
+ cpu_string, modes_string, flags_string);
+ if (num_matched != 6 && num_matched != 7)
+ {
+ fprintf (stderr, "Couldn't scan line %s\n", currentLine);
+ exit (1);
+ }
+
+ if (strcmp (cpu_string, "g5") == 0
+ || strcmp (cpu_string, "arch3") == 0)
+ min_cpu = S390_OPCODE_G5;
+ else if (strcmp (cpu_string, "g6") == 0)
+ min_cpu = S390_OPCODE_G6;
+ else if (strcmp (cpu_string, "z900") == 0
+ || strcmp (cpu_string, "arch5") == 0)
+ min_cpu = S390_OPCODE_Z900;
+ else if (strcmp (cpu_string, "z990") == 0
+ || strcmp (cpu_string, "arch6") == 0)
+ min_cpu = S390_OPCODE_Z990;
+ else if (strcmp (cpu_string, "z9-109") == 0)
+ min_cpu = S390_OPCODE_Z9_109;
+ else if (strcmp (cpu_string, "z9-ec") == 0
+ || strcmp (cpu_string, "arch7") == 0)
+ min_cpu = S390_OPCODE_Z9_EC;
+ else if (strcmp (cpu_string, "z10") == 0
+ || strcmp (cpu_string, "arch8") == 0)
+ min_cpu = S390_OPCODE_Z10;
+ else if (strcmp (cpu_string, "z196") == 0
+ || strcmp (cpu_string, "arch9") == 0)
+ min_cpu = S390_OPCODE_Z196;
+ else if (strcmp (cpu_string, "zEC12") == 0
+ || strcmp (cpu_string, "arch10") == 0)
+ min_cpu = S390_OPCODE_ZEC12;
+ else if (strcmp (cpu_string, "z13") == 0
+ || strcmp (cpu_string, "arch11") == 0)
+ min_cpu = S390_OPCODE_Z13;
+ else if (strcmp (cpu_string, "z14") == 0
+ || strcmp (cpu_string, "arch12") == 0)
+ min_cpu = S390_OPCODE_ARCH12;
+ else if (strcmp (cpu_string, "z15") == 0
+ || strcmp (cpu_string, "arch13") == 0)
+ min_cpu = S390_OPCODE_ARCH13;
+ else {
+ fprintf (stderr, "Couldn't parse cpu string %s\n", cpu_string);
+ exit (1);
+ }
+
+ str = modes_string;
+ mode_bits = 0;
+ do {
+ if (strncmp (str, "esa", 3) == 0
+ && (str[3] == 0 || str[3] == ',')) {
+ mode_bits |= 1 << S390_OPCODE_ESA;
+ str += 3;
+ } else if (strncmp (str, "zarch", 5) == 0
+ && (str[5] == 0 || str[5] == ',')) {
+ mode_bits |= 1 << S390_OPCODE_ZARCH;
+ str += 5;
+ } else {
+ fprintf (stderr, "Couldn't parse modes string %s\n",
+ modes_string);
+ exit (1);
+ }
+ if (*str == ',')
+ str++;
+ } while (*str != 0);
+
+ flag_bits = 0;
+
+ if (num_matched == 7)
+ {
+ str = flags_string;
+ do {
+ if (strncmp (str, "optparm", 7) == 0
+ && (str[7] == 0 || str[7] == ',')) {
+ flag_bits |= S390_INSTR_FLAG_OPTPARM;
+ str += 7;
+ } else if (strncmp (str, "optparm2", 8) == 0
+ && (str[8] == 0 || str[8] == ',')) {
+ flag_bits |= S390_INSTR_FLAG_OPTPARM2;
+ str += 8;
+ } else if (strncmp (str, "htm", 3) == 0
+ && (str[3] == 0 || str[3] == ',')) {
+ flag_bits |= S390_INSTR_FLAG_HTM;
+ str += 3;
+ } else if (strncmp (str, "vx", 2) == 0
+ && (str[2] == 0 || str[2] == ',')) {
+ flag_bits |= S390_INSTR_FLAG_VX;
+ str += 2;
+ } else {
+ fprintf (stderr, "Couldn't parse flags string %s\n",
+ flags_string);
+ exit (1);
+ }
+ if (*str == ',')
+ str++;
+ } while (*str != 0);
+ }
+ insertExpandedMnemonic (opcode, mnemonic, format, min_cpu, mode_bits, flag_bits);
}
- dumpTable();
- return 0;
+ dumpTable ();
+ return 0;
}
projects / deliverable / binutils-gdb.git / blobdiff