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Fix incorrect calculation of conditional field when being extracted

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from a previous decode.
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Andrew Cagney 1998-07-29 00:14:29 +00:00
parent d846a17c70
commit 8d3580d090
2 changed files with 15 additions and 1 deletions
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5
sim/igen/ChangeLog
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@ -1,3 +1,8 @@
Wed Jul 29 10:07:27 1998 Andrew Cagney <cagney@b1.cygnus.com>
* gen.c (gen_entry_expand_opcode): Extract the field value from an
opcode using the correct location bits.
Tue Jul 28 11:19:43 1998 Andrew Cagney <cagney@b1.cygnus.com>
* ld-insn.c (parse_insn_word): For constant conditional strings,

11
sim/igen/gen.c
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@ -1039,8 +1039,17 @@ gen_entry_expand_opcode (gen_entry *table,
/* the table entry fully
specified the condition
field's value */
/* extract the field's value
from the opcode */
value = sub_val (t->opcode_nr, t->parent->opcode->last,
first_pos, last_pos);
condition->field->first, condition->field->last);
/* this is a requirement of
a conditonal field
refering to another field */
ASSERT ((condition->field->first - condition->field->last)
== (first_pos - last_pos));
printf ("value=%d, opcode_nr=%d, last=%d, [%d..%d]\n",
value, t->opcode_nr, t->parent->opcode->last, condition->field->first, condition->field->last);
}
}
}