| Line 1... |
Line 1... |
/* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
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/* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
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Copyright 2000, 2001, 2003, 2007 Free Software Foundation, Inc.
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Copyright 2000, 2001, 2003, 2005, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU opcodes library.
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This file is part of the GNU opcodes library.
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This library is free software; you can redistribute it and/or modify
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This library is free software; you can redistribute it and/or modify
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| Line 35... |
Line 35... |
S390_OPCODE_G5 = 0,
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S390_OPCODE_G5 = 0,
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S390_OPCODE_G6,
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S390_OPCODE_G6,
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S390_OPCODE_Z900,
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S390_OPCODE_Z900,
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S390_OPCODE_Z990,
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S390_OPCODE_Z990,
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S390_OPCODE_Z9_109,
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S390_OPCODE_Z9_109,
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S390_OPCODE_Z9_EC
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S390_OPCODE_Z9_EC,
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S390_OPCODE_Z10
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};
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};
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struct op_struct
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struct op_struct
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{
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{
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char opcode[16];
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char opcode[16];
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| Line 119... |
Line 120... |
{
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{
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char nibble;
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char nibble;
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char extension[4];
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char extension[4];
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};
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};
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/* The mnemonic extensions for conditional jumps used to replace
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the '*' tag. */
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#define NUM_COND_EXTENSIONS 20
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#define NUM_COND_EXTENSIONS 20
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const struct s390_cond_ext_format s390_cond_extensions[NUM_COND_EXTENSIONS] =
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const struct s390_cond_ext_format s390_cond_extensions[NUM_COND_EXTENSIONS] =
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{
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{ { '1', "o" }, /* jump on overflow / if ones */
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{ '1', "o" }, /* jump on overflow / if ones */
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{ '2', "h" }, /* jump on A high */
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{ '2', "h" }, /* jump on A high */
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{ '2', "p" }, /* jump on plus */
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{ '2', "p" }, /* jump on plus */
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{ '3', "nle" }, /* jump on not low or equal */
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{ '3', "nle" }, /* jump on not low or equal */
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{ '4', "l" }, /* jump on A low */
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{ '4', "l" }, /* jump on A low */
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{ '4', "m" }, /* jump on minus / if mixed */
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{ '4', "m" }, /* jump on minus / if mixed */
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| Line 145... |
Line 146... |
{ 'd', "nh" }, /* jump on A not high */
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{ 'd', "nh" }, /* jump on A not high */
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{ 'd', "np" }, /* jump on not plus */
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{ 'd', "np" }, /* jump on not plus */
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{ 'e', "no" }, /* jump on not overflow / if not ones */
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{ 'e', "no" }, /* jump on not overflow / if not ones */
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};
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};
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/* The mnemonic extensions for conditional branches used to replace
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the '$' tag. */
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#define NUM_CRB_EXTENSIONS 12
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const struct s390_cond_ext_format s390_crb_extensions[NUM_CRB_EXTENSIONS] =
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{ { '2', "h" }, /* jump on A high */
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{ '2', "nle" }, /* jump on not low or equal */
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{ '4', "l" }, /* jump on A low */
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{ '4', "nhe" }, /* jump on not high or equal */
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{ '6', "ne" }, /* jump on A not equal B */
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{ '6', "lh" }, /* jump on low or high */
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{ '8', "e" }, /* jump on A equal B */
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{ '8', "nlh" }, /* jump on not low or high */
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{ 'a', "nl" }, /* jump on A not low */
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{ 'a', "he" }, /* jump on high or equal */
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{ 'c', "nh" }, /* jump on A not high */
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{ 'c', "le" }, /* jump on low or equal */
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};
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/* As with insertOpcode instructions are added to the sorted opcode
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/* As with insertOpcode instructions are added to the sorted opcode
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array. Additionally mnemonics containing the '*<number>' tag are
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array. Additionally mnemonics containing the '*<number>' tag are
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expanded to the set of conditional instructions described by
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expanded to the set of conditional instructions described by
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s390_cond_extensions with the '*<number>' tag replaced by the
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s390_cond_extensions with the tag replaced by the respective
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respective mnemonic extensions. */
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mnemonic extensions. */
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static void
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static void
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expandConditionalJump (char *opcode, char *mnemonic, char *format,
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insertExpandedMnemonic (char *opcode, char *mnemonic, char *format,
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int min_cpu, int mode_bits)
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int min_cpu, int mode_bits)
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{
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{
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char prefix[5];
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char *tag;
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char suffix[5];
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char prefix[15];
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char number[5];
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char suffix[15];
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int mask_start, i = 0, star_found = 0, reading_number = 0;
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char number[15];
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int mask_start, i = 0, tag_found = 0, reading_number = 0;
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int number_p = 0, suffix_p = 0, prefix_p = 0;
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int number_p = 0, suffix_p = 0, prefix_p = 0;
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const struct s390_cond_ext_format *ext_table;
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int ext_table_length;
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if (!(tag = strpbrk (mnemonic, "*$")))
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{
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insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits);
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return;
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}
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while (mnemonic[i] != '\0')
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while (mnemonic[i] != '\0')
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{
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{
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switch (mnemonic[i])
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if (mnemonic[i] == *tag)
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{
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{
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case '*':
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if (tag_found)
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if (star_found)
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goto malformed_mnemonic;
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goto malformed_mnemonic;
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star_found = 1;
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tag_found = 1;
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reading_number = 1;
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reading_number = 1;
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break;
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}
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else
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switch (mnemonic[i])
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{
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case '0': case '1': case '2': case '3': case '4':
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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case '5': case '6': case '7': case '8': case '9':
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if (!star_found || !reading_number)
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if (!tag_found || !reading_number)
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goto malformed_mnemonic;
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goto malformed_mnemonic;
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number[number_p++] = mnemonic[i];
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number[number_p++] = mnemonic[i];
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break;
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break;
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| Line 190... |
Line 219... |
goto malformed_mnemonic;
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goto malformed_mnemonic;
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else
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else
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reading_number = 0;
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reading_number = 0;
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}
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}
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if (star_found)
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if (tag_found)
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suffix[suffix_p++] = mnemonic[i];
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suffix[suffix_p++] = mnemonic[i];
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else
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else
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prefix[prefix_p++] = mnemonic[i];
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prefix[prefix_p++] = mnemonic[i];
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}
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}
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i++;
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i++;
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| Line 214... |
Line 243... |
return;
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return;
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}
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}
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mask_start >>= 2;
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mask_start >>= 2;
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for (i = 0; i < NUM_COND_EXTENSIONS; i++)
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switch (*tag)
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{
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case '*':
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ext_table = s390_cond_extensions;
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ext_table_length = NUM_COND_EXTENSIONS;
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break;
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case '$':
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ext_table = s390_crb_extensions;
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ext_table_length = NUM_CRB_EXTENSIONS;
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break;
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default: fprintf (stderr, "Unknown tag char: %c\n", *tag);
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}
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for (i = 0; i < ext_table_length; i++)
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{
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{
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char new_mnemonic[15];
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char new_mnemonic[15];
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strcpy (new_mnemonic, prefix);
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strcpy (new_mnemonic, prefix);
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strcat (new_mnemonic, s390_cond_extensions[i].extension);
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opcode[mask_start] = ext_table[i].nibble;
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strcat (new_mnemonic, ext_table[i].extension);
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strcat (new_mnemonic, suffix);
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strcat (new_mnemonic, suffix);
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opcode[mask_start] = s390_cond_extensions[i].nibble;
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insertOpcode (opcode, new_mnemonic, format, min_cpu, mode_bits);
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insertOpcode (opcode, new_mnemonic, format, min_cpu, mode_bits);
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}
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}
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return;
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return;
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malformed_mnemonic:
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malformed_mnemonic:
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| Line 316... |
Line 358... |
min_cpu = S390_OPCODE_Z990;
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min_cpu = S390_OPCODE_Z990;
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else if (strcmp (cpu_string, "z9-109") == 0)
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else if (strcmp (cpu_string, "z9-109") == 0)
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min_cpu = S390_OPCODE_Z9_109;
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min_cpu = S390_OPCODE_Z9_109;
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else if (strcmp (cpu_string, "z9-ec") == 0)
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else if (strcmp (cpu_string, "z9-ec") == 0)
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min_cpu = S390_OPCODE_Z9_EC;
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min_cpu = S390_OPCODE_Z9_EC;
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else if (strcmp (cpu_string, "z10") == 0)
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min_cpu = S390_OPCODE_Z10;
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else {
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else {
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fprintf (stderr, "Couldn't parse cpu string %s\n", cpu_string);
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fprintf (stderr, "Couldn't parse cpu string %s\n", cpu_string);
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exit (1);
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exit (1);
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}
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}
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| Line 341... |
Line 385... |
}
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}
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if (*str == ',')
|
if (*str == ',')
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str++;
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str++;
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} while (*str != 0);
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} while (*str != 0);
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if (!strchr (mnemonic, '*'))
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insertExpandedMnemonic (opcode, mnemonic, format, min_cpu, mode_bits);
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insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits);
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else
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expandConditionalJump (opcode, mnemonic, format,
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min_cpu, mode_bits);
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}
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}
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else
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else
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fprintf (stderr, "Couldn't scan line %s\n", currentLine);
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fprintf (stderr, "Couldn't scan line %s\n", currentLine);
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}
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}
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