/* s390-mkopc.c -- Generates opcode table out of s390-opc.txt
- Copyright 2000, 2001, 2003, 2007 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 the GNU opcodes library.
S390_OPCODE_Z900,
S390_OPCODE_Z990,
S390_OPCODE_Z9_109,
- S390_OPCODE_Z9_EC
+ S390_OPCODE_Z9_EC,
+ S390_OPCODE_Z10
};
struct op_struct
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 '$' tag. */
+#define NUM_CRB_EXTENSIONS 12
+const struct s390_cond_ext_format s390_crb_extensions[NUM_CRB_EXTENSIONS] =
+{ { '2', "h" }, /* jump on A high */
+ { '2', "nle" }, /* jump on not low or equal */
+ { '4', "l" }, /* jump on A low */
+ { '4', "nhe" }, /* jump on not high or equal */
+ { '6', "ne" }, /* jump on A not equal B */
+ { '6', "lh" }, /* jump on low or high */
+ { '8', "e" }, /* jump on A equal B */
+ { '8', "nlh" }, /* jump on not low or high */
+ { 'a', "nl" }, /* jump on A not low */
+ { 'a', "he" }, /* jump on high or equal */
+ { 'c', "nh" }, /* jump on A not high */
+ { 'c', "le" }, /* jump on low or equal */
+};
+
+/* As with insertOpcode instructions are added to the sorted opcode
+ array. Additionally mnemonics containing the '*<number>' tag are
+ expanded to the set of conditional instructions described by
+ s390_cond_extensions with the tag replaced by the respective
+ mnemonic extensions. */
+
+static void
+insertExpandedMnemonic (char *opcode, char *mnemonic, char *format,
+ int min_cpu, int mode_bits)
+{
+ char *tag;
+ char prefix[15];
+ char suffix[15];
+ char number[15];
+ int mask_start, i = 0, tag_found = 0, reading_number = 0;
+ int number_p = 0, suffix_p = 0, prefix_p = 0;
+ const struct s390_cond_ext_format *ext_table;
+ int ext_table_length;
+
+ if (!(tag = strpbrk (mnemonic, "*$")))
+ {
+ 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 char file_header[] =
"/* The opcode table. This file was generated by s390-mkopc.\n\n"
" The format of the opcode table is:\n\n"
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 {
fprintf (stderr, "Couldn't parse cpu string %s\n", cpu_string);
exit (1);
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);
projects / msp430-binutils.git / blobdiff