X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fs390-mkopc.c;h=6aed72b8182a64d7328df4dee86a0b7db52f7e52;hb=d0b5971ae7b8709c28a7a1638413426d8749d976;hp=9e94f24871dad667eef312cd8bbb15c14999ce86;hpb=b5639b37c53e7a0d54b6c321b1b363075fa7cb01;p=deliverable%2Fbinutils-gdb.git diff --git a/opcodes/s390-mkopc.c b/opcodes/s390-mkopc.c index 9e94f24871..6aed72b818 100644 --- a/opcodes/s390-mkopc.c +++ b/opcodes/s390-mkopc.c @@ -1,23 +1,23 @@ /* s390-mkopc.c -- Generates opcode table out of s390-opc.txt - Copyright 2000, 2001, 2003 Free Software Foundation, Inc. + Copyright 2000, 2001, 2003, 2005, 2007, 2008 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., 51 Franklin Street - Fifth Floor, Boston, MA - 02110-1301, 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 #include @@ -37,7 +37,10 @@ enum s390_opcode_cpu_val S390_OPCODE_Z900, S390_OPCODE_Z990, S390_OPCODE_Z9_109, - S390_OPCODE_Z9_EC + S390_OPCODE_Z9_EC, + S390_OPCODE_Z10, + S390_OPCODE_Z196, + S390_OPCODE_ZEC12 }; struct op_struct @@ -47,7 +50,7 @@ struct op_struct char format[16]; int mode_bits; int min_cpu; - + unsigned long long sort_value; int no_nibbles; }; @@ -115,7 +118,165 @@ insertOpcode (char *opcode, char *mnemonic, char *format, no_ops++; } -static char file_header[] = +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 '$' tag. */ +#define NUM_CRB_EXTENSIONS 12 +const struct s390_cond_ext_format s390_crb_extensions[NUM_CRB_EXTENSIONS] = +{ { '2', "h" }, /* jump on A high */ + { '2', "nle" }, /* jump on not low or equal */ + { '4', "l" }, /* jump on A low */ + { '4', "nhe" }, /* jump on not high or equal */ + { '6', "ne" }, /* jump on A not equal B */ + { '6', "lh" }, /* jump on low or high */ + { '8', "e" }, /* jump on A equal B */ + { '8', "nlh" }, /* jump on not low or high */ + { 'a', "nl" }, /* jump on A not low */ + { 'a', "he" }, /* jump on high or equal */ + { 'c', "nh" }, /* jump on A not high */ + { 'c', "le" }, /* jump on low or equal */ +}; + +/* As with insertOpcode instructions are added to the sorted opcode + array. Additionally mnemonics containing the '*' tag are + expanded to the set of conditional instructions described by + s390_cond_extensions with the tag replaced by the respective + mnemonic extensions. */ + +static void +insertExpandedMnemonic (char *opcode, char *mnemonic, char *format, + int min_cpu, int mode_bits) +{ + char *tag; + char prefix[15]; + char suffix[15]; + char number[15]; + int mask_start, i = 0, tag_found = 0, reading_number = 0; + int number_p = 0, suffix_p = 0, prefix_p = 0; + const struct s390_cond_ext_format *ext_table; + int ext_table_length; + + if (!(tag = strpbrk (mnemonic, "*$"))) + { + insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits); + 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; + + 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); + } + 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" @@ -145,7 +306,7 @@ dumpTable (void) for (str = op_array[ix].opcode; *str != 0; str++) if (*str == '?') *str = '0'; - printf ("OP%i(0x%sLL), ", + 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); @@ -165,7 +326,7 @@ int main (void) { char currentLine[256]; - + createTable (); /* Read opcode descriptions from `stdin'. For each mnemonic, @@ -175,17 +336,17 @@ main (void) char opcode[16]; char mnemonic[16]; char format[16]; - char description[64]; + char description[80]; char cpu_string[16]; char modes_string[16]; int min_cpu; int mode_bits; char *str; - if (currentLine[0] == '#') + if (currentLine[0] == '#' || currentLine[0] == '\n') continue; memset (opcode, 0, 8); - if (sscanf (currentLine, "%15s %15s %15s \"%[^\"]\" %15s %15s", + if (sscanf (currentLine, "%15s %15s %15s \"%79[^\"]\" %15s %15s", opcode, mnemonic, format, description, cpu_string, modes_string) == 6) { @@ -201,6 +362,12 @@ main (void) min_cpu = S390_OPCODE_Z9_109; else if (strcmp (cpu_string, "z9-ec") == 0) min_cpu = S390_OPCODE_Z9_EC; + else if (strcmp (cpu_string, "z10") == 0) + min_cpu = S390_OPCODE_Z10; + else if (strcmp (cpu_string, "z196") == 0) + min_cpu = S390_OPCODE_Z196; + else if (strcmp (cpu_string, "zEC12") == 0) + min_cpu = S390_OPCODE_ZEC12; else { fprintf (stderr, "Couldn't parse cpu string %s\n", cpu_string); exit (1); @@ -225,10 +392,14 @@ main (void) if (*str == ',') str++; } while (*str != 0); - insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits); + + insertExpandedMnemonic (opcode, mnemonic, format, min_cpu, mode_bits); } else - fprintf (stderr, "Couldn't scan line %s\n", currentLine); + { + fprintf (stderr, "Couldn't scan line %s\n", currentLine); + exit (1); + } } dumpTable ();