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[/] [openrisc/] [trunk/] [or1ksim/] [cuc/] [insn.h] - Blame information for rev 815

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1 19 jeremybenn
/* insn.h -- OpenRISC Custom Unit Compiler, internal instruction definitions
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   Copyright (C) 2002 Marko Mlinar, markom@opencores.org
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   Copyright (C) 2008 Embecosm Limited
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   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the Free
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   Software Foundation; either version 3 of the License, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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   more details.
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   You should have received a copy of the GNU General Public License along
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   with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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/* This program is commented throughout in a fashion suitable for processing
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   with Doxygen. */
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#ifndef INSN__H
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#define INSN__H
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#include "cuc.h"
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/* Instruction types */
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#define II_ADD   0
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#define II_SUB   1
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#define II_AND   2
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#define II_OR    3
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#define II_XOR   4
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#define II_MUL   5
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#define II_SRL   6
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#define II_SLL   7
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#define II_SRA   8
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#define II_LB    9
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#define II_LH    10
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#define II_LW    11
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#define II_SB    12
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#define II_SH    13
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#define II_SW    14
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#define II_SFEQ  15
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#define II_SFNE  16
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#define II_SFLE  17
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#define II_SFLT  18
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#define II_SFGE  19
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#define II_SFGT  20
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#define II_BF    21
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#define II_LRBB  22
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#define II_CMOV  23
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#define II_REG   24
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#define II_NOP   25
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#define II_CALL  26
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#define II_LAST  26
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/* misc flags */
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#define II_MASK   0x0fff
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#define II_MEM    0x1000
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#define II_SIGNED 0x2000
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#define II_IS_LOAD(x) ((x) == II_LB || (x) == II_LH || (x) == II_LW)
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#define II_IS_STORE(x) ((x) == II_SB || (x) == II_SH || (x) == II_SW)
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#define II_MEM_WIDTH(x) (((x) == II_LB || (x) == II_SB) ? 1 :\
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                         ((x) == II_LH || (x) == II_SH) ? 2 :\
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                         ((x) == II_LW || (x) == II_SW) ? 4 : -1)
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/* List of known instructions and their rtl representation */
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typedef struct
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{
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  char *name;
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  int comutative;
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  char *rtl;
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} cuc_known_insn;
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extern const cuc_known_insn known[II_LAST + 1];
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/* Timing table -- same indexes as known table */
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typedef struct
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{
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  double delay;
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  double size;
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  double delayi;
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  double sizei;
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} cuc_timing_table;
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/* Conversion links */
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typedef struct
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{
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  const char *from;
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  const int to;
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} cuc_conv;
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/* normal (not immediate) size of a function */
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double ii_size (int index, int imm);
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/* Returns instruction size */
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double insn_time (cuc_insn * ii);
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/* Returns instruction time */
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double insn_size (cuc_insn * ii);
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/* Find known instruction and attach them to insn */
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void change_insn_type (cuc_insn * i, int index);
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/* Returns instruction name */
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const char *cuc_insn_name (cuc_insn * ii);
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/* Loads in the specified timings table */
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void load_timing_table (char *filename);
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/* Displays shared instructions */
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void print_shared (cuc_func * rf, cuc_shared_item * shared, int nshared);
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#endif  /* INSN__H */

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