decode.c

这个是LINUX下的GDB调度工具的源码

/* Simulator instruction decoder for frvbf.

THIS FILE IS MACHINE GENERATED WITH CGEN.

Copyright 1996-2004 Free Software Foundation, Inc.

This file is part of the GNU simulators.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*/

#define WANT_CPU frvbf
#define WANT_CPU_FRVBF

#include "sim-main.h"
#include "sim-assert.h"

/* The instruction descriptor array.
   This is computed at runtime.  Space for it is not malloc'd to save a
   teensy bit of cpu in the decoder.  Moving it to malloc space is trivial
   but won't be done until necessary (we don't currently support the runtime
   addition of instructions nor an SMP machine with different cpus).  */
static IDESC frvbf_insn_data[FRVBF_INSN__MAX];

/* Commas between elements are contained in the macros.
   Some of these are conditionally compiled out.  */

static const struct insn_sem frvbf_insn_sem[] =
{
  { VIRTUAL_INSN_X_INVALID, FRVBF_INSN_X_INVALID, FRVBF_SFMT_EMPTY },
  { VIRTUAL_INSN_X_AFTER, FRVBF_INSN_X_AFTER, FRVBF_SFMT_EMPTY },
  { VIRTUAL_INSN_X_BEFORE, FRVBF_INSN_X_BEFORE, FRVBF_SFMT_EMPTY },
  { VIRTUAL_INSN_X_CTI_CHAIN, FRVBF_INSN_X_CTI_CHAIN, FRVBF_SFMT_EMPTY },
  { VIRTUAL_INSN_X_CHAIN, FRVBF_INSN_X_CHAIN, FRVBF_SFMT_EMPTY },
  { VIRTUAL_INSN_X_BEGIN, FRVBF_INSN_X_BEGIN, FRVBF_SFMT_EMPTY },
  { FRV_INSN_ADD, FRVBF_INSN_ADD, FRVBF_SFMT_ADD },
  { FRV_INSN_SUB, FRVBF_INSN_SUB, FRVBF_SFMT_ADD },
  { FRV_INSN_AND, FRVBF_INSN_AND, FRVBF_SFMT_ADD },
  { FRV_INSN_OR, FRVBF_INSN_OR, FRVBF_SFMT_ADD },
  { FRV_INSN_XOR, FRVBF_INSN_XOR, FRVBF_SFMT_ADD },
  { FRV_INSN_NOT, FRVBF_INSN_NOT, FRVBF_SFMT_NOT },
  { FRV_INSN_SDIV, FRVBF_INSN_SDIV, FRVBF_SFMT_SDIV },
  { FRV_INSN_NSDIV, FRVBF_INSN_NSDIV, FRVBF_SFMT_SDIV },
  { FRV_INSN_UDIV, FRVBF_INSN_UDIV, FRVBF_SFMT_SDIV },
  { FRV_INSN_NUDIV, FRVBF_INSN_NUDIV, FRVBF_SFMT_SDIV },
  { FRV_INSN_SMUL, FRVBF_INSN_SMUL, FRVBF_SFMT_SMUL },
  { FRV_INSN_UMUL, FRVBF_INSN_UMUL, FRVBF_SFMT_SMUL },
  { FRV_INSN_SMU, FRVBF_INSN_SMU, FRVBF_SFMT_SMU },
  { FRV_INSN_SMASS, FRVBF_INSN_SMASS, FRVBF_SFMT_SMASS },
  { FRV_INSN_SMSSS, FRVBF_INSN_SMSSS, FRVBF_SFMT_SMASS },
  { FRV_INSN_SLL, FRVBF_INSN_SLL, FRVBF_SFMT_ADD },
  { FRV_INSN_SRL, FRVBF_INSN_SRL, FRVBF_SFMT_ADD },
  { FRV_INSN_SRA, FRVBF_INSN_SRA, FRVBF_SFMT_ADD },
  { FRV_INSN_SLASS, FRVBF_INSN_SLASS, FRVBF_SFMT_ADD },
  { FRV_INSN_SCUTSS, FRVBF_INSN_SCUTSS, FRVBF_SFMT_SCUTSS },
  { FRV_INSN_SCAN, FRVBF_INSN_SCAN, FRVBF_SFMT_ADD },
  { FRV_INSN_CADD, FRVBF_INSN_CADD, FRVBF_SFMT_CADD },
  { FRV_INSN_CSUB, FRVBF_INSN_CSUB, FRVBF_SFMT_CADD },
  { FRV_INSN_CAND, FRVBF_INSN_CAND, FRVBF_SFMT_CADD },
  { FRV_INSN_COR, FRVBF_INSN_COR, FRVBF_SFMT_CADD },
  { FRV_INSN_CXOR, FRVBF_INSN_CXOR, FRVBF_SFMT_CADD },
  { FRV_INSN_CNOT, FRVBF_INSN_CNOT, FRVBF_SFMT_CNOT },
  { FRV_INSN_CSMUL, FRVBF_INSN_CSMUL, FRVBF_SFMT_CSMUL },
  { FRV_INSN_CSDIV, FRVBF_INSN_CSDIV, FRVBF_SFMT_CSDIV },
  { FRV_INSN_CUDIV, FRVBF_INSN_CUDIV, FRVBF_SFMT_CSDIV },
  { FRV_INSN_CSLL, FRVBF_INSN_CSLL, FRVBF_SFMT_CADD },
  { FRV_INSN_CSRL, FRVBF_INSN_CSRL, FRVBF_SFMT_CADD },
  { FRV_INSN_CSRA, FRVBF_INSN_CSRA, FRVBF_SFMT_CADD },
  { FRV_INSN_CSCAN, FRVBF_INSN_CSCAN, FRVBF_SFMT_CADD },
  { FRV_INSN_ADDCC, FRVBF_INSN_ADDCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_SUBCC, FRVBF_INSN_SUBCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_ANDCC, FRVBF_INSN_ANDCC, FRVBF_SFMT_ANDCC },
  { FRV_INSN_ORCC, FRVBF_INSN_ORCC, FRVBF_SFMT_ANDCC },
  { FRV_INSN_XORCC, FRVBF_INSN_XORCC, FRVBF_SFMT_ANDCC },
  { FRV_INSN_SLLCC, FRVBF_INSN_SLLCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_SRLCC, FRVBF_INSN_SRLCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_SRACC, FRVBF_INSN_SRACC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_SMULCC, FRVBF_INSN_SMULCC, FRVBF_SFMT_SMULCC },
  { FRV_INSN_UMULCC, FRVBF_INSN_UMULCC, FRVBF_SFMT_SMULCC },
  { FRV_INSN_CADDCC, FRVBF_INSN_CADDCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CSUBCC, FRVBF_INSN_CSUBCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CSMULCC, FRVBF_INSN_CSMULCC, FRVBF_SFMT_CSMULCC },
  { FRV_INSN_CANDCC, FRVBF_INSN_CANDCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CORCC, FRVBF_INSN_CORCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CXORCC, FRVBF_INSN_CXORCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CSLLCC, FRVBF_INSN_CSLLCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CSRLCC, FRVBF_INSN_CSRLCC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_CSRACC, FRVBF_INSN_CSRACC, FRVBF_SFMT_CADDCC },
  { FRV_INSN_ADDX, FRVBF_INSN_ADDX, FRVBF_SFMT_ADDX },
  { FRV_INSN_SUBX, FRVBF_INSN_SUBX, FRVBF_SFMT_ADDX },
  { FRV_INSN_ADDXCC, FRVBF_INSN_ADDXCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_SUBXCC, FRVBF_INSN_SUBXCC, FRVBF_SFMT_ADDCC },
  { FRV_INSN_ADDSS, FRVBF_INSN_ADDSS, FRVBF_SFMT_ADD },
  { FRV_INSN_SUBSS, FRVBF_INSN_SUBSS, FRVBF_SFMT_ADD },
  { FRV_INSN_ADDI, FRVBF_INSN_ADDI, FRVBF_SFMT_ADDI },
  { FRV_INSN_SUBI, FRVBF_INSN_SUBI, FRVBF_SFMT_ADDI },
  { FRV_INSN_ANDI, FRVBF_INSN_ANDI, FRVBF_SFMT_ADDI },
  { FRV_INSN_ORI, FRVBF_INSN_ORI, FRVBF_SFMT_ADDI },
  { FRV_INSN_XORI, FRVBF_INSN_XORI, FRVBF_SFMT_ADDI },
  { FRV_INSN_SDIVI, FRVBF_INSN_SDIVI, FRVBF_SFMT_SDIVI },
  { FRV_INSN_NSDIVI, FRVBF_INSN_NSDIVI, FRVBF_SFMT_SDIVI },
  { FRV_INSN_UDIVI, FRVBF_INSN_UDIVI, FRVBF_SFMT_SDIVI },
  { FRV_INSN_NUDIVI, FRVBF_INSN_NUDIVI, FRVBF_SFMT_SDIVI },
  { FRV_INSN_SMULI, FRVBF_INSN_SMULI, FRVBF_SFMT_SMULI },
  { FRV_INSN_UMULI, FRVBF_INSN_UMULI, FRVBF_SFMT_SMULI },
  { FRV_INSN_SLLI, FRVBF_INSN_SLLI, FRVBF_SFMT_ADDI },
  { FRV_INSN_SRLI, FRVBF_INSN_SRLI, FRVBF_SFMT_ADDI },
  { FRV_INSN_SRAI, FRVBF_INSN_SRAI, FRVBF_SFMT_ADDI },
  { FRV_INSN_SCANI, FRVBF_INSN_SCANI, FRVBF_SFMT_ADDI },
  { FRV_INSN_ADDICC, FRVBF_INSN_ADDICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_SUBICC, FRVBF_INSN_SUBICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_ANDICC, FRVBF_INSN_ANDICC, FRVBF_SFMT_ANDICC },
  { FRV_INSN_ORICC, FRVBF_INSN_ORICC, FRVBF_SFMT_ANDICC },
  { FRV_INSN_XORICC, FRVBF_INSN_XORICC, FRVBF_SFMT_ANDICC },
  { FRV_INSN_SMULICC, FRVBF_INSN_SMULICC, FRVBF_SFMT_SMULICC },
  { FRV_INSN_UMULICC, FRVBF_INSN_UMULICC, FRVBF_SFMT_SMULICC },
  { FRV_INSN_SLLICC, FRVBF_INSN_SLLICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_SRLICC, FRVBF_INSN_SRLICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_SRAICC, FRVBF_INSN_SRAICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_ADDXI, FRVBF_INSN_ADDXI, FRVBF_SFMT_ADDXI },
  { FRV_INSN_SUBXI, FRVBF_INSN_SUBXI, FRVBF_SFMT_ADDXI },
  { FRV_INSN_ADDXICC, FRVBF_INSN_ADDXICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_SUBXICC, FRVBF_INSN_SUBXICC, FRVBF_SFMT_ADDICC },
  { FRV_INSN_CMPB, FRVBF_INSN_CMPB, FRVBF_SFMT_CMPB },
  { FRV_INSN_CMPBA, FRVBF_INSN_CMPBA, FRVBF_SFMT_CMPB },
  { FRV_INSN_SETLO, FRVBF_INSN_SETLO, FRVBF_SFMT_SETLO },
  { FRV_INSN_SETHI, FRVBF_INSN_SETHI, FRVBF_SFMT_SETHI },
  { FRV_INSN_SETLOS, FRVBF_INSN_SETLOS, FRVBF_SFMT_SETLOS },
  { FRV_INSN_LDSB, FRVBF_INSN_LDSB, FRVBF_SFMT_LDSB },
  { FRV_INSN_LDUB, FRVBF_INSN_LDUB, FRVBF_SFMT_LDSB },
  { FRV_INSN_LDSH, FRVBF_INSN_LDSH, FRVBF_SFMT_LDSB },
  { FRV_INSN_LDUH, FRVBF_INSN_LDUH, FRVBF_SFMT_LDSB },
  { FRV_INSN_LD, FRVBF_INSN_LD, FRVBF_SFMT_LDSB },
  { FRV_INSN_LDBF, FRVBF_INSN_LDBF, FRVBF_SFMT_LDBF },
  { FRV_INSN_LDHF, FRVBF_INSN_LDHF, FRVBF_SFMT_LDBF },
  { FRV_INSN_LDF, FRVBF_INSN_LDF, FRVBF_SFMT_LDBF },
  { FRV_INSN_LDC, FRVBF_INSN_LDC, FRVBF_SFMT_LDC },
  { FRV_INSN_NLDSB, FRVBF_INSN_NLDSB, FRVBF_SFMT_NLDSB },
  { FRV_INSN_NLDUB, FRVBF_INSN_NLDUB, FRVBF_SFMT_NLDSB },
  { FRV_INSN_NLDSH, FRVBF_INSN_NLDSH, FRVBF_SFMT_NLDSB },
  { FRV_INSN_NLDUH, FRVBF_INSN_NLDUH, FRVBF_SFMT_NLDSB },
  { FRV_INSN_NLD, FRVBF_INSN_NLD, FRVBF_SFMT_NLDSB },
  { FRV_INSN_NLDBF, FRVBF_INSN_NLDBF, FRVBF_SFMT_NLDBF },
  { FRV_INSN_NLDHF, FRVBF_INSN_NLDHF, FRVBF_SFMT_NLDBF },
  { FRV_INSN_NLDF, FRVBF_INSN_NLDF, FRVBF_SFMT_NLDBF },
  { FRV_INSN_LDD, FRVBF_INSN_LDD, FRVBF_SFMT_LDD },
  { FRV_INSN_LDDF, FRVBF_INSN_LDDF, FRVBF_SFMT_LDDF },
  { FRV_INSN_LDDC, FRVBF_INSN_LDDC, FRVBF_SFMT_LDDC },
  { FRV_INSN_NLDD, FRVBF_INSN_NLDD, FRVBF_SFMT_NLDD },
  { FRV_INSN_NLDDF, FRVBF_INSN_NLDDF, FRVBF_SFMT_NLDDF },
  { FRV_INSN_LDQ, FRVBF_INSN_LDQ, FRVBF_SFMT_LDQ },
  { FRV_INSN_LDQF, FRVBF_INSN_LDQF, FRVBF_SFMT_LDQF },
  { FRV_INSN_LDQC, FRVBF_INSN_LDQC, FRVBF_SFMT_LDQC },
  { FRV_INSN_NLDQ, FRVBF_INSN_NLDQ, FRVBF_SFMT_NLDQ },
  { FRV_INSN_NLDQF, FRVBF_INSN_NLDQF, FRVBF_SFMT_NLDQF },
  { FRV_INSN_LDSBU, FRVBF_INSN_LDSBU, FRVBF_SFMT_LDSBU },
  { FRV_INSN_LDUBU, FRVBF_INSN_LDUBU, FRVBF_SFMT_LDSBU },
  { FRV_INSN_LDSHU, FRVBF_INSN_LDSHU, FRVBF_SFMT_LDSBU },
  { FRV_INSN_LDUHU, FRVBF_INSN_LDUHU, FRVBF_SFMT_LDSBU },
  { FRV_INSN_LDU, FRVBF_INSN_LDU, FRVBF_SFMT_LDSBU },
  { FRV_INSN_NLDSBU, FRVBF_INSN_NLDSBU, FRVBF_SFMT_NLDSBU },
  { FRV_INSN_NLDUBU, FRVBF_INSN_NLDUBU, FRVBF_SFMT_NLDSBU },
  { FRV_INSN_NLDSHU, FRVBF_INSN_NLDSHU, FRVBF_SFMT_NLDSBU },
  { FRV_INSN_NLDUHU, FRVBF_INSN_NLDUHU, FRVBF_SFMT_NLDSBU },
  { FRV_INSN_NLDU, FRVBF_INSN_NLDU, FRVBF_SFMT_NLDSBU },
  { FRV_INSN_LDBFU, FRVBF_INSN_LDBFU, FRVBF_SFMT_LDBFU },
  { FRV_INSN_LDHFU, FRVBF_INSN_LDHFU, FRVBF_SFMT_LDBFU },
  { FRV_INSN_LDFU, FRVBF_INSN_LDFU, FRVBF_SFMT_LDBFU },
  { FRV_INSN_LDCU, FRVBF_INSN_LDCU, FRVBF_SFMT_LDCU },
  { FRV_INSN_NLDBFU, FRVBF_INSN_NLDBFU, FRVBF_SFMT_NLDBFU },
  { FRV_INSN_NLDHFU, FRVBF_INSN_NLDHFU, FRVBF_SFMT_NLDBFU },
  { FRV_INSN_NLDFU, FRVBF_INSN_NLDFU, FRVBF_SFMT_NLDBFU },
  { FRV_INSN_LDDU, FRVBF_INSN_LDDU, FRVBF_SFMT_LDDU },
  { FRV_INSN_NLDDU, FRVBF_INSN_NLDDU, FRVBF_SFMT_NLDDU },
  { FRV_INSN_LDDFU, FRVBF_INSN_LDDFU, FRVBF_SFMT_LDDFU },
  { FRV_INSN_LDDCU, FRVBF_INSN_LDDCU, FRVBF_SFMT_LDDCU },
  { FRV_INSN_NLDDFU, FRVBF_INSN_NLDDFU, FRVBF_SFMT_NLDDFU },
  { FRV_INSN_LDQU, FRVBF_INSN_LDQU, FRVBF_SFMT_LDQU },
  { FRV_INSN_NLDQU, FRVBF_INSN_NLDQU, FRVBF_SFMT_NLDQU },
  { FRV_INSN_LDQFU, FRVBF_INSN_LDQFU, FRVBF_SFMT_LDQFU },
  { FRV_INSN_LDQCU, FRVBF_INSN_LDQCU, FRVBF_SFMT_LDQCU },
  { FRV_INSN_NLDQFU, FRVBF_INSN_NLDQFU, FRVBF_SFMT_NLDQFU },
  { FRV_INSN_LDSBI, FRVBF_INSN_LDSBI, FRVBF_SFMT_LDSBI },
  { FRV_INSN_LDSHI, FRVBF_INSN_LDSHI, FRVBF_SFMT_LDSBI },
  { FRV_INSN_LDI, FRVBF_INSN_LDI, FRVBF_SFMT_LDSBI },
  { FRV_INSN_LDUBI, FRVBF_INSN_LDUBI, FRVBF_SFMT_LDSBI },
  { FRV_INSN_LDUHI, FRVBF_INSN_LDUHI, FRVBF_SFMT_LDSBI },
  { FRV_INSN_LDBFI, FRVBF_INSN_LDBFI, FRVBF_SFMT_LDBFI },
  { FRV_INSN_LDHFI, FRVBF_INSN_LDHFI, FRVBF_SFMT_LDBFI },
  { FRV_INSN_LDFI, FRVBF_INSN_LDFI, FRVBF_SFMT_LDBFI },
  { FRV_INSN_NLDSBI, FRVBF_INSN_NLDSBI, FRVBF_SFMT_NLDSBI },
  { FRV_INSN_NLDUBI, FRVBF_INSN_NLDUBI, FRVBF_SFMT_NLDSBI },
  { FRV_INSN_NLDSHI, FRVBF_INSN_NLDSHI, FRVBF_SFMT_NLDSBI },
  { FRV_INSN_NLDUHI, FRVBF_INSN_NLDUHI, FRVBF_SFMT_NLDSBI },
  { FRV_INSN_NLDI, FRVBF_INSN_NLDI, FRVBF_SFMT_NLDSBI },
  { FRV_INSN_NLDBFI, FRVBF_INSN_NLDBFI, FRVBF_SFMT_NLDBFI },
  { FRV_INSN_NLDHFI, FRVBF_INSN_NLDHFI, FRVBF_SFMT_NLDBFI },
  { FRV_INSN_NLDFI, FRVBF_INSN_NLDFI, FRVBF_SFMT_NLDBFI },
  { FRV_INSN_LDDI, FRVBF_INSN_LDDI, FRVBF_SFMT_LDDI },
  { FRV_INSN_LDDFI, FRVBF_INSN_LDDFI, FRVBF_SFMT_LDDFI },
  { FRV_INSN_NLDDI, FRVBF_INSN_NLDDI, FRVBF_SFMT_NLDDI },
  { FRV_INSN_NLDDFI, FRVBF_INSN_NLDDFI, FRVBF_SFMT_NLDDFI },
  { FRV_INSN_LDQI, FRVBF_INSN_LDQI, FRVBF_SFMT_LDQI },
  { FRV_INSN_LDQFI, FRVBF_INSN_LDQFI, FRVBF_SFMT_LDQFI },
  { FRV_INSN_NLDQFI, FRVBF_INSN_NLDQFI, FRVBF_SFMT_NLDQFI },
  { FRV_INSN_STB, FRVBF_INSN_STB, FRVBF_SFMT_STB },
  { FRV_INSN_STH, FRVBF_INSN_STH, FRVBF_SFMT_STB },
  { FRV_INSN_ST, FRVBF_INSN_ST, FRVBF_SFMT_STB },
  { FRV_INSN_STBF, FRVBF_INSN_STBF, FRVBF_SFMT_STBF },
  { FRV_INSN_STHF, FRVBF_INSN_STHF, FRVBF_SFMT_STBF },
  { FRV_INSN_STF, FRVBF_INSN_STF, FRVBF_SFMT_STBF },
  { FRV_INSN_STC, FRVBF_INSN_STC, FRVBF_SFMT_STC },
  { FRV_INSN_STD, FRVBF_INSN_STD, FRVBF_SFMT_STD },
  { FRV_INSN_STDF, FRVBF_INSN_STDF, FRVBF_SFMT_STDF },
  { FRV_INSN_STDC, FRVBF_INSN_STDC, FRVBF_SFMT_STDC },
  { FRV_INSN_STQ, FRVBF_INSN_STQ, FRVBF_SFMT_LDQ },
  { FRV_INSN_STQF, FRVBF_INSN_STQF, FRVBF_SFMT_LDQF },
  { FRV_INSN_STQC, FRVBF_INSN_STQC, FRVBF_SFMT_LDQC },
  { FRV_INSN_STBU, FRVBF_INSN_STBU, FRVBF_SFMT_STBU },
  { FRV_INSN_STHU, FRVBF_INSN_STHU, FRVBF_SFMT_STBU },
  { FRV_INSN_STU, FRVBF_INSN_STU, FRVBF_SFMT_STBU },
  { FRV_INSN_STBFU, FRVBF_INSN_STBFU, FRVBF_SFMT_STBFU },
  { FRV_INSN_STHFU, FRVBF_INSN_STHFU, FRVBF_SFMT_STBFU },