+/* same as strcmp */
+static int
+insn_field_cmp (insn_word_entry *l, insn_word_entry *r)
+{
+ while (1)
+ {
+ int bit_nr;
+ if (l == NULL && r == NULL)
+ return 0; /* all previous fields the same */
+ if (l == NULL)
+ return -1; /* left shorter than right */
+ if (r == NULL)
+ return +1; /* left longer than right */
+ for (bit_nr = 0; bit_nr < options.insn_bit_size; bit_nr++)
+ {
+ if (l->bit[bit_nr]->field->type != insn_field_string)
+ continue;
+ if (r->bit[bit_nr]->field->type != insn_field_string)
+ continue;
+ if (l->bit[bit_nr]->field->conditions == NULL)
+ continue;
+ if (r->bit[bit_nr]->field->conditions == NULL)
+ continue;
+ if (0)
+ printf ("%s%s%s VS %s%s%s\n",
+ l->bit[bit_nr]->field->val_string,
+ l->bit[bit_nr]->field->conditions->test ==
+ insn_field_cond_eq ? "=" : "!",
+ l->bit[bit_nr]->field->conditions->string,
+ r->bit[bit_nr]->field->val_string,
+ r->bit[bit_nr]->field->conditions->test ==
+ insn_field_cond_eq ? "=" : "!",
+ r->bit[bit_nr]->field->conditions->string);
+ if (l->bit[bit_nr]->field->conditions->test == insn_field_cond_eq
+ && r->bit[bit_nr]->field->conditions->test ==
+ insn_field_cond_eq)
+ {
+ if (l->bit[bit_nr]->field->conditions->type ==
+ insn_field_cond_field
+ && r->bit[bit_nr]->field->conditions->type ==
+ insn_field_cond_field)
+ /* somewhat arbitrary */
+ {
+ int cmp = strcmp (l->bit[bit_nr]->field->conditions->string,
+ r->bit[bit_nr]->field->conditions->
+ string);
+ if (cmp != 0)
+ return cmp;
+ else
+ continue;
+ }
+ if (l->bit[bit_nr]->field->conditions->type ==
+ insn_field_cond_field)
+ return +1;
+ if (r->bit[bit_nr]->field->conditions->type ==
+ insn_field_cond_field)
+ return -1;
+ /* The case of both fields having constant values should have
+ already have been handled because such fields are converted
+ into normal constant fields, but we must not make this
+ an assert, as we wouldn't gracefully handle an (invalid)
+ duplicate insn description. */
+ continue;
+ }
+ if (l->bit[bit_nr]->field->conditions->test == insn_field_cond_eq)
+ return +1; /* left = only */
+ if (r->bit[bit_nr]->field->conditions->test == insn_field_cond_eq)
+ return -1; /* right = only */
+ /* FIXME: Need to some what arbitrarily order conditional lists */
+ continue;
+ }
+ l = l->next;
+ r = r->next;
+ }
+}