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/* Instruction printing code for the DLX Microprocessor
   Copyright 2002, 2005, 2007 Free Software Foundation, Inc.
   Contributed by Kuang Hwa Lin.  Written by Kuang Hwa Lin, 03/2002.
 
   This file is part of the GNU opcodes library.
 
   This library 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 3, or (at your option)
   any later version.
 
   It 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */
 
#include "sysdep.h"
#include "dis-asm.h"
#include "opcode/dlx.h"
 
#define R_ERROR     0x1
#define R_TYPE      0x2
#define ILD_TYPE    0x3
#define IST_TYPE    0x4
#define IAL_TYPE    0x5
#define IBR_TYPE    0x6
#define IJ_TYPE     0x7
#define IJR_TYPE    0x8
#define NIL         0x9
 
#define OPC(x)      ((x >> 26) & 0x3F)
#define FUNC(x)     (x & 0x7FF)
 
unsigned char opc, rs1, rs2, rd;
unsigned long imm26, imm16, func, current_insn_addr;
 
/* Print one instruction from MEMADDR on INFO->STREAM.
   Return the size of the instruction (always 4 on dlx).  */
 
static unsigned char
dlx_get_opcode (unsigned long opcode)
{
  return (unsigned char) ((opcode >> 26) & 0x3F);
}
 
static unsigned char
dlx_get_rs1 (unsigned long opcode)
{
  return (unsigned char) ((opcode >> 21) & 0x1F);
}
 
static unsigned char
dlx_get_rs2 (unsigned long opcode)
{
  return (unsigned char) ((opcode >> 16) & 0x1F);
}
 
static unsigned char
dlx_get_rdR (unsigned long opcode)
{
  return (unsigned char) ((opcode >> 11) & 0x1F);
}
 
static unsigned long
dlx_get_func (unsigned long opcode)
{
  return (unsigned char) (opcode & 0x7FF);
}
 
static unsigned long
dlx_get_imm16 (unsigned long opcode)
{
  return (unsigned long) (opcode & 0xFFFF);
}
 
static unsigned long
dlx_get_imm26 (unsigned long opcode)
{
  return (unsigned long) (opcode & 0x03FFFFFF);
}
 
/* Fill the opcode to the max length.  */
 
static void
operand_deliminator (struct disassemble_info *info, char *ptr)
{
  int difft = 8 - (int) strlen (ptr);
 
  while (difft > 0)
    {
      (*info->fprintf_func) (info->stream, "%c", ' ');
      difft -= 1;
    }
}
 
/* Process the R-type opcode.  */
 
static unsigned char
dlx_r_type (struct disassemble_info *info)
{
  unsigned char r_opc[] = { OPC(ALUOP) }; /* Fix ME */
  int r_opc_num = (sizeof r_opc) / (sizeof (char));
  struct _r_opcode
  {
    unsigned long func;
    char *name;
  }
  dlx_r_opcode[] =
  {
    { NOPF,     "nop"    },  /* NOP                          */
    { ADDF,     "add"    },  /* Add                          */
    { ADDUF,    "addu"   },  /* Add Unsigned                 */
    { SUBF,     "sub"    },  /* SUB                          */
    { SUBUF,    "subu"   },  /* Sub Unsigned                 */
    { MULTF,    "mult"   },  /* MULTIPLY                     */
    { MULTUF,   "multu"  },  /* MULTIPLY Unsigned            */
    { DIVF,     "div"    },  /* DIVIDE                       */
    { DIVUF,    "divu"   },  /* DIVIDE Unsigned              */
    { ANDF,     "and"    },  /* AND                          */
    { ORF,      "or"     },  /* OR                           */
    { XORF,     "xor"    },  /* Exclusive OR                 */
    { SLLF,     "sll"    },  /* SHIFT LEFT LOGICAL           */
    { SRAF,     "sra"    },  /* SHIFT RIGHT ARITHMETIC       */
    { SRLF,     "srl"    },  /* SHIFT RIGHT LOGICAL          */
    { SEQF,     "seq"    },  /* Set if equal                 */
    { SNEF,     "sne"    },  /* Set if not equal             */
    { SLTF,     "slt"    },  /* Set if less                  */
    { SGTF,     "sgt"    },  /* Set if greater               */
    { SLEF,     "sle"    },  /* Set if less or equal         */
    { SGEF,     "sge"    },  /* Set if greater or equal      */
    { SEQUF,    "sequ"   },  /* Set if equal                 */
    { SNEUF,    "sneu"   },  /* Set if not equal             */
    { SLTUF,    "sltu"   },  /* Set if less                  */
    { SGTUF,    "sgtu"   },  /* Set if greater               */
    { SLEUF,    "sleu"   },  /* Set if less or equal         */
    { SGEUF,    "sgeu"   },  /* Set if greater or equal      */
    { MVTSF,    "mvts"   },  /* Move to special register     */
    { MVFSF,    "mvfs"   },  /* Move from special register   */
    { BSWAPF,   "bswap"  },  /* Byte swap ??                 */
    { LUTF,     "lut"    }   /* ????????? ??                 */
  };
  int dlx_r_opcode_num = (sizeof dlx_r_opcode) / (sizeof dlx_r_opcode[0]);
  int idx;
 
  for (idx = 0; idx < r_opc_num; idx++)
    {
      if (r_opc[idx] != opc)
        continue;
      else
        break;
    }
 
  if (idx == r_opc_num)
    return NIL;
 
  for (idx = 0 ; idx < dlx_r_opcode_num; idx++)
    if (dlx_r_opcode[idx].func == func)
      {
        (*info->fprintf_func) (info->stream, "%s", dlx_r_opcode[idx].name);
 
        if (func != NOPF)
          {
            /* This is not a nop.  */
            operand_deliminator (info, dlx_r_opcode[idx].name);
            (*info->fprintf_func) (info->stream, "r%d,", (int)rd);
            (*info->fprintf_func) (info->stream, "r%d", (int)rs1);
            if (func != MVTSF && func != MVFSF)
              (*info->fprintf_func) (info->stream, ",r%d", (int)rs2);
          }
        return (unsigned char) R_TYPE;
      }
 
  return (unsigned char) R_ERROR;
}
 
/* Process the memory read opcode.  */
 
static unsigned char
dlx_load_type (struct disassemble_info* info)
{
  struct _load_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_load_opcode[] =
  {
    { OPC(LHIOP),   "lhi" },  /* Load HI to register.           */
    { OPC(LBOP),     "lb" },  /* load byte sign extended.       */
    { OPC(LBUOP),   "lbu" },  /* load byte unsigned.            */
    { OPC(LSBUOP),"ldstbu"},  /* load store byte unsigned.      */
    { OPC(LHOP),     "lh" },  /* load halfword sign extended.   */
    { OPC(LHUOP),   "lhu" },  /* load halfword unsigned.        */
    { OPC(LSHUOP),"ldsthu"},  /* load store halfword unsigned.  */
    { OPC(LWOP),     "lw" },  /* load word.                     */
    { OPC(LSWOP), "ldstw" }   /* load store word.               */
  };
  int dlx_load_opcode_num =
    (sizeof dlx_load_opcode) / (sizeof dlx_load_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_load_opcode_num; idx++)
    if (dlx_load_opcode[idx].opcode == opc)
      {
        if (opc == OPC (LHIOP))
          {
            (*info->fprintf_func) (info->stream, "%s", dlx_load_opcode[idx].name);
            operand_deliminator (info, dlx_load_opcode[idx].name);
            (*info->fprintf_func) (info->stream, "r%d,", (int)rs2);
            (*info->fprintf_func) (info->stream, "0x%04x", (int)imm16);
          }
        else
          {
            (*info->fprintf_func) (info->stream, "%s", dlx_load_opcode[idx].name);
            operand_deliminator (info, dlx_load_opcode[idx].name);
            (*info->fprintf_func) (info->stream, "r%d,", (int)rs2);
            (*info->fprintf_func) (info->stream, "0x%04x[r%d]", (int)imm16, (int)rs1);
          }
 
        return (unsigned char) ILD_TYPE;
    }
 
  return (unsigned char) NIL;
}
 
/* Process the memory store opcode.  */
 
static unsigned char
dlx_store_type (struct disassemble_info* info)
{
  struct _store_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_store_opcode[] =
  {
    { OPC(SBOP),     "sb" },  /* Store byte.      */
    { OPC(SHOP),     "sh" },  /* Store halfword.  */
    { OPC(SWOP),     "sw" },  /* Store word.      */
  };
  int dlx_store_opcode_num =
    (sizeof dlx_store_opcode) / (sizeof dlx_store_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_store_opcode_num; idx++)
    if (dlx_store_opcode[idx].opcode == opc)
      {
        (*info->fprintf_func) (info->stream, "%s", dlx_store_opcode[idx].name);
        operand_deliminator (info, dlx_store_opcode[idx].name);
        (*info->fprintf_func) (info->stream, "0x%04x[r%d],", (int)imm16, (int)rs1);
        (*info->fprintf_func) (info->stream, "r%d", (int)rs2);
        return (unsigned char) IST_TYPE;
      }
 
  return (unsigned char) NIL;
}
 
/* Process the Arithmetic and Logical I-TYPE opcode.  */
 
static unsigned char
dlx_aluI_type (struct disassemble_info* info)
{
  struct _aluI_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_aluI_opcode[] =
  {
    { OPC(ADDIOP),   "addi"  },  /* Store byte.      */
    { OPC(ADDUIOP),  "addui" },  /* Store halfword.  */
    { OPC(SUBIOP),   "subi"  },  /* Store word.      */
    { OPC(SUBUIOP),  "subui" },  /* Store word.      */
    { OPC(ANDIOP),   "andi"  },  /* Store word.      */
    { OPC(ORIOP),    "ori"   },  /* Store word.      */
    { OPC(XORIOP),   "xori"  },  /* Store word.      */
    { OPC(SLLIOP),   "slli"  },  /* Store word.      */
    { OPC(SRAIOP),   "srai"  },  /* Store word.      */
    { OPC(SRLIOP),   "srli"  },  /* Store word.      */
    { OPC(SEQIOP),   "seqi"  },  /* Store word.      */
    { OPC(SNEIOP),   "snei"  },  /* Store word.      */
    { OPC(SLTIOP),   "slti"  },  /* Store word.      */
    { OPC(SGTIOP),   "sgti"  },  /* Store word.      */
    { OPC(SLEIOP),   "slei"  },  /* Store word.      */
    { OPC(SGEIOP),   "sgei"  },  /* Store word.      */
    { OPC(SEQUIOP),  "sequi" },  /* Store word.      */
    { OPC(SNEUIOP),  "sneui" },  /* Store word.      */
    { OPC(SLTUIOP),  "sltui" },  /* Store word.      */
    { OPC(SGTUIOP),  "sgtui" },  /* Store word.      */
    { OPC(SLEUIOP),  "sleui" },  /* Store word.      */
    { OPC(SGEUIOP),  "sgeui" },  /* Store word.      */
#if 0                                                  
    { OPC(MVTSOP),   "mvts"  },  /* Store word.      */
    { OPC(MVFSOP),   "mvfs"  },  /* Store word.      */
#endif
  };
  int dlx_aluI_opcode_num =
    (sizeof dlx_aluI_opcode) / (sizeof dlx_aluI_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_aluI_opcode_num; idx++)
    if (dlx_aluI_opcode[idx].opcode == opc)
      {
        (*info->fprintf_func) (info->stream, "%s", dlx_aluI_opcode[idx].name);
        operand_deliminator (info, dlx_aluI_opcode[idx].name);
        (*info->fprintf_func) (info->stream, "r%d,", (int)rs2);
        (*info->fprintf_func) (info->stream, "r%d,", (int)rs1);
        (*info->fprintf_func) (info->stream, "0x%04x", (int)imm16);
 
        return (unsigned char) IAL_TYPE;
      }
 
  return (unsigned char) NIL;
}
 
/* Process the branch instruction.  */
 
static unsigned char
dlx_br_type (struct disassemble_info* info)
{
  struct _br_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_br_opcode[] =
  {
    { OPC(BEQOP), "beqz" }, /* Store byte.  */
    { OPC(BNEOP), "bnez" }  /* Store halfword.  */
  };
  int dlx_br_opcode_num =
    (sizeof dlx_br_opcode) / (sizeof dlx_br_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_br_opcode_num; idx++)
    if (dlx_br_opcode[idx].opcode == opc)
      {
        if (imm16 & 0x00008000)
          imm16 |= 0xFFFF0000;
 
        imm16 += (current_insn_addr + 4);
        (*info->fprintf_func) (info->stream, "%s", dlx_br_opcode[idx].name);
        operand_deliminator (info, dlx_br_opcode[idx].name);
        (*info->fprintf_func) (info->stream, "r%d,", (int) rs1);
        (*info->fprintf_func) (info->stream, "0x%08x", (int) imm16);
 
        return (unsigned char) IBR_TYPE;
      }
 
  return (unsigned char) NIL;
}
 
/* Process the jump instruction.  */
 
static unsigned char
dlx_jmp_type (struct disassemble_info* info)
{
  struct _jmp_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_jmp_opcode[] =
  {
    { OPC(JOP),         "j" },  /* Store byte.      */
    { OPC(JALOP),     "jal" },  /* Store halfword.  */
    { OPC(BREAKOP), "break" },  /* Store halfword.  */
    { OPC(TRAPOP),   "trap" },  /* Store halfword.  */
    { OPC(RFEOP),     "rfe" }   /* Store halfword.  */
  };
  int dlx_jmp_opcode_num =
    (sizeof dlx_jmp_opcode) / (sizeof dlx_jmp_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_jmp_opcode_num; idx++)
    if (dlx_jmp_opcode[idx].opcode == opc)
      {
        if (imm26 & 0x02000000)
          imm26 |= 0xFC000000;
 
        imm26 += (current_insn_addr + 4);
 
        (*info->fprintf_func) (info->stream, "%s", dlx_jmp_opcode[idx].name);
        operand_deliminator (info, dlx_jmp_opcode[idx].name);
        (*info->fprintf_func) (info->stream, "0x%08x", (int)imm26);
 
        return (unsigned char) IJ_TYPE;
      }
 
  return (unsigned char) NIL;
}
 
/* Process the jump register instruction.  */
 
static unsigned char
dlx_jr_type (struct disassemble_info* info)
{
  struct _jr_opcode
  {
    unsigned long opcode;
    char *name;
  }
  dlx_jr_opcode[] =
  {
    { OPC(JROP),   "jr"    },  /* Store byte.  */
    { OPC(JALROP), "jalr"  }   /* Store halfword.  */
  };
  int dlx_jr_opcode_num =
    (sizeof dlx_jr_opcode) / (sizeof dlx_jr_opcode[0]);
  int idx;
 
  for (idx = 0 ; idx < dlx_jr_opcode_num; idx++)
    if (dlx_jr_opcode[idx].opcode == opc)
      {
        (*info->fprintf_func) (info->stream, "%s", dlx_jr_opcode[idx].name);
        operand_deliminator (info, dlx_jr_opcode[idx].name);
        (*info->fprintf_func) (info->stream, "r%d", (int)rs1);
        return (unsigned char) IJR_TYPE;
      }
 
  return (unsigned char) NIL;
}
 
typedef unsigned char (* dlx_insn) (struct disassemble_info *);
 
/* This is the main DLX insn handling routine.  */
 
int
print_insn_dlx (bfd_vma memaddr, struct disassemble_info* info)
{
  bfd_byte buffer[4];
  int insn_idx;
  unsigned long insn_word;
  unsigned char rtn_code;
  unsigned long dlx_insn_type[] =
  {
    (unsigned long) dlx_r_type,
    (unsigned long) dlx_load_type,
    (unsigned long) dlx_store_type,
    (unsigned long) dlx_aluI_type,
    (unsigned long) dlx_br_type,
    (unsigned long) dlx_jmp_type,
    (unsigned long) dlx_jr_type,
    (unsigned long) NULL
  };
  int dlx_insn_type_num = ((sizeof dlx_insn_type) / (sizeof (unsigned long))) - 1;
  int status =
    (*info->read_memory_func) (memaddr, (bfd_byte *) &buffer[0], 4, info);
 
  if (status != 0)
    {
      (*info->memory_error_func) (status, memaddr, info);
      return -1;
    }
 
  /* Now decode the insn    */
  insn_word = bfd_getb32 (buffer);
  opc  = dlx_get_opcode (insn_word);
  rs1  = dlx_get_rs1 (insn_word);
  rs2  = dlx_get_rs2 (insn_word);
  rd   = dlx_get_rdR (insn_word);
  func = dlx_get_func (insn_word);
  imm16= dlx_get_imm16 (insn_word);
  imm26= dlx_get_imm26 (insn_word);
 
#if 0
  printf ("print_insn_big_dlx: opc = 0x%02x\n"
          "                    rs1 = 0x%02x\n"
          "                    rs2 = 0x%02x\n"
          "                    rd  = 0x%02x\n"
          "                  func  = 0x%08x\n"
          "                 imm16  = 0x%08x\n"
          "                 imm26  = 0x%08x\n",
          opc, rs1, rs2, rd, func, imm16, imm26);
#endif
 
  /* Scan through all the insn type and print the insn out.  */
  rtn_code = 0;
  current_insn_addr = (unsigned long) memaddr;
 
  for (insn_idx = 0; dlx_insn_type[insn_idx] != 0x0; insn_idx++)
    switch (((dlx_insn) (dlx_insn_type[insn_idx])) (info))
      {
        /* Found the correct opcode   */
      case R_TYPE:
      case ILD_TYPE:
      case IST_TYPE:
      case IAL_TYPE:
      case IBR_TYPE:
      case IJ_TYPE:
      case IJR_TYPE:
        return 4;
 
        /* Wrong insn type check next one. */
      default:
      case NIL:
        continue;
 
        /* All rest of the return code are not recongnized, treat it as error */
        /* we should never get here,  I hope! */
      case R_ERROR:
        return -1;
      }
 
  if (insn_idx ==  dlx_insn_type_num)
    /* Well, does not recoganize this opcode.  */
    (*info->fprintf_func) (info->stream, "<%s>", "Unrecognized Opcode");
 
  return 4;
}

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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [opcodes/] [dlx-dis.c] - Blame information for rev 826

Line No.	Rev	Author	Line
1	24	jeremybenn	`/* Instruction printing code for the DLX Microprocessor`
2			`Copyright 2002, 2005, 2007 Free Software Foundation, Inc.`
3			`Contributed by Kuang Hwa Lin. Written by Kuang Hwa Lin, 03/2002.`
4
5			`This file is part of the GNU opcodes library.`
6
7			`This library is free software; you can redistribute it and/or modify`
8			`it under the terms of the GNU General Public License as published by`
9			`the Free Software Foundation; either version 3, or (at your option)`
10			`any later version.`
11
12			`It is distributed in the hope that it will be useful, but WITHOUT`
13			`ANY WARRANTY; without even the implied warranty of MERCHANTABILITY`
14			`or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public`
15			`License for more details.`
16
17			`You should have received a copy of the GNU General Public License`
18			`along with this program; if not, write to the Free Software`
19			`Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,`
20			`MA 02110-1301, USA. */`
21
22			`#include "sysdep.h"`
23			`#include "dis-asm.h"`
24			`#include "opcode/dlx.h"`
25
26			`#define R_ERROR 0x1`
27			`#define R_TYPE 0x2`
28			`#define ILD_TYPE 0x3`
29			`#define IST_TYPE 0x4`
30			`#define IAL_TYPE 0x5`
31			`#define IBR_TYPE 0x6`
32			`#define IJ_TYPE 0x7`
33			`#define IJR_TYPE 0x8`
34			`#define NIL 0x9`
35
36			`#define OPC(x) ((x >> 26) & 0x3F)`
37			`#define FUNC(x) (x & 0x7FF)`
38
39			`unsigned char opc, rs1, rs2, rd;`
40			`unsigned long imm26, imm16, func, current_insn_addr;`
41
42			`/* Print one instruction from MEMADDR on INFO->STREAM.`
43			`Return the size of the instruction (always 4 on dlx). */`
44
45			`static unsigned char`
46			`dlx_get_opcode (unsigned long opcode)`
47			`{`
48			`return (unsigned char) ((opcode >> 26) & 0x3F);`
49			`}`
50
51			`static unsigned char`
52			`dlx_get_rs1 (unsigned long opcode)`
53			`{`
54			`return (unsigned char) ((opcode >> 21) & 0x1F);`
55			`}`
56
57			`static unsigned char`
58			`dlx_get_rs2 (unsigned long opcode)`
59			`{`
60			`return (unsigned char) ((opcode >> 16) & 0x1F);`
61			`}`
62
63			`static unsigned char`
64			`dlx_get_rdR (unsigned long opcode)`
65			`{`
66			`return (unsigned char) ((opcode >> 11) & 0x1F);`
67			`}`
68
69			`static unsigned long`
70			`dlx_get_func (unsigned long opcode)`
71			`{`
72			`return (unsigned char) (opcode & 0x7FF);`
73			`}`
74
75			`static unsigned long`
76			`dlx_get_imm16 (unsigned long opcode)`
77			`{`
78			`return (unsigned long) (opcode & 0xFFFF);`
79			`}`
80
81			`static unsigned long`
82			`dlx_get_imm26 (unsigned long opcode)`
83			`{`
84			`return (unsigned long) (opcode & 0x03FFFFFF);`
85			`}`
86
87			`/* Fill the opcode to the max length. */`
88
89			`static void`
90			`operand_deliminator (struct disassemble_info info, char ptr)`
91			`{`
92			`int difft = 8 - (int) strlen (ptr);`
93
94			`while (difft > 0)`
95			`{`
96			`(*info->fprintf_func) (info->stream, "%c", ' ');`
97			`difft -= 1;`
98			`}`
99			`}`
100
101			`/* Process the R-type opcode. */`
102
103			`static unsigned char`
104			`dlx_r_type (struct disassemble_info *info)`
105			`{`
106			`unsigned char r_opc[] = { OPC(ALUOP) }; /* Fix ME */`
107			`int r_opc_num = (sizeof r_opc) / (sizeof (char));`
108			`struct _r_opcode`
109			`{`
110			`unsigned long func;`
111			`char *name;`
112			`}`
113			`dlx_r_opcode[] =`
114			`{`
115			`{ NOPF, "nop" }, /* NOP */`
116			`{ ADDF, "add" }, /* Add */`
117			`{ ADDUF, "addu" }, /* Add Unsigned */`
118			`{ SUBF, "sub" }, /* SUB */`
119			`{ SUBUF, "subu" }, /* Sub Unsigned */`
120			`{ MULTF, "mult" }, /* MULTIPLY */`
121			`{ MULTUF, "multu" }, /* MULTIPLY Unsigned */`
122			`{ DIVF, "div" }, /* DIVIDE */`
123			`{ DIVUF, "divu" }, /* DIVIDE Unsigned */`
124			`{ ANDF, "and" }, /* AND */`
125			`{ ORF, "or" }, /* OR */`
126			`{ XORF, "xor" }, /* Exclusive OR */`
127			`{ SLLF, "sll" }, /* SHIFT LEFT LOGICAL */`
128			`{ SRAF, "sra" }, /* SHIFT RIGHT ARITHMETIC */`
129			`{ SRLF, "srl" }, /* SHIFT RIGHT LOGICAL */`
130			`{ SEQF, "seq" }, /* Set if equal */`
131			`{ SNEF, "sne" }, /* Set if not equal */`
132			`{ SLTF, "slt" }, /* Set if less */`
133			`{ SGTF, "sgt" }, /* Set if greater */`
134			`{ SLEF, "sle" }, /* Set if less or equal */`
135			`{ SGEF, "sge" }, /* Set if greater or equal */`
136			`{ SEQUF, "sequ" }, /* Set if equal */`
137			`{ SNEUF, "sneu" }, /* Set if not equal */`
138			`{ SLTUF, "sltu" }, /* Set if less */`
139			`{ SGTUF, "sgtu" }, /* Set if greater */`
140			`{ SLEUF, "sleu" }, /* Set if less or equal */`
141			`{ SGEUF, "sgeu" }, /* Set if greater or equal */`
142			`{ MVTSF, "mvts" }, /* Move to special register */`
143			`{ MVFSF, "mvfs" }, /* Move from special register */`
144			`{ BSWAPF, "bswap" }, /* Byte swap ?? */`
145			`{ LUTF, "lut" } /* ????????? ?? */`
146			`};`
147			`int dlx_r_opcode_num = (sizeof dlx_r_opcode) / (sizeof dlx_r_opcode[0]);`
148			`int idx;`
149
150			`for (idx = 0; idx < r_opc_num; idx++)`
151			`{`
152			`if (r_opc[idx] != opc)`
153			`continue;`
154			`else`
155			`break;`
156			`}`
157
158			`if (idx == r_opc_num)`
159			`return NIL;`
160
161			`for (idx = 0 ; idx < dlx_r_opcode_num; idx++)`
162			`if (dlx_r_opcode[idx].func == func)`
163			`{`
164			`(*info->fprintf_func) (info->stream, "%s", dlx_r_opcode[idx].name);`
165
166			`if (func != NOPF)`
167			`{`
168			`/* This is not a nop. */`
169			`operand_deliminator (info, dlx_r_opcode[idx].name);`
170			`(*info->fprintf_func) (info->stream, "r%d,", (int)rd);`
171			`(*info->fprintf_func) (info->stream, "r%d", (int)rs1);`
172			`if (func != MVTSF && func != MVFSF)`
173			`(*info->fprintf_func) (info->stream, ",r%d", (int)rs2);`
174			`}`
175			`return (unsigned char) R_TYPE;`
176			`}`
177
178			`return (unsigned char) R_ERROR;`
179			`}`
180
181			`/* Process the memory read opcode. */`
182
183			`static unsigned char`
184			`dlx_load_type (struct disassemble_info* info)`
185			`{`
186			`struct _load_opcode`
187			`{`
188			`unsigned long opcode;`
189			`char *name;`
190			`}`
191			`dlx_load_opcode[] =`
192			`{`
193			`{ OPC(LHIOP), "lhi" }, /* Load HI to register. */`
194			`{ OPC(LBOP), "lb" }, /* load byte sign extended. */`
195			`{ OPC(LBUOP), "lbu" }, /* load byte unsigned. */`
196			`{ OPC(LSBUOP),"ldstbu"}, /* load store byte unsigned. */`
197			`{ OPC(LHOP), "lh" }, /* load halfword sign extended. */`
198			`{ OPC(LHUOP), "lhu" }, /* load halfword unsigned. */`
199			`{ OPC(LSHUOP),"ldsthu"}, /* load store halfword unsigned. */`
200			`{ OPC(LWOP), "lw" }, /* load word. */`
201			`{ OPC(LSWOP), "ldstw" } /* load store word. */`
202			`};`
203			`int dlx_load_opcode_num =`
204			`(sizeof dlx_load_opcode) / (sizeof dlx_load_opcode[0]);`
205			`int idx;`
206
207			`for (idx = 0 ; idx < dlx_load_opcode_num; idx++)`
208			`if (dlx_load_opcode[idx].opcode == opc)`
209			`{`
210			`if (opc == OPC (LHIOP))`
211			`{`
212			`(*info->fprintf_func) (info->stream, "%s", dlx_load_opcode[idx].name);`
213			`operand_deliminator (info, dlx_load_opcode[idx].name);`
214			`(*info->fprintf_func) (info->stream, "r%d,", (int)rs2);`
215			`(*info->fprintf_func) (info->stream, "0x%04x", (int)imm16);`
216			`}`
217			`else`
218			`{`
219			`(*info->fprintf_func) (info->stream, "%s", dlx_load_opcode[idx].name);`
220			`operand_deliminator (info, dlx_load_opcode[idx].name);`
221			`(*info->fprintf_func) (info->stream, "r%d,", (int)rs2);`
222			`(*info->fprintf_func) (info->stream, "0x%04x[r%d]", (int)imm16, (int)rs1);`
223			`}`
224
225			`return (unsigned char) ILD_TYPE;`
226			`}`
227
228			`return (unsigned char) NIL;`
229			`}`
230
231			`/* Process the memory store opcode. */`
232
233			`static unsigned char`
234			`dlx_store_type (struct disassemble_info* info)`
235			`{`
236			`struct _store_opcode`
237			`{`
238			`unsigned long opcode;`
239			`char *name;`
240			`}`
241			`dlx_store_opcode[] =`
242			`{`
243			`{ OPC(SBOP), "sb" }, /* Store byte. */`
244			`{ OPC(SHOP), "sh" }, /* Store halfword. */`
245			`{ OPC(SWOP), "sw" }, /* Store word. */`
246			`};`
247			`int dlx_store_opcode_num =`
248			`(sizeof dlx_store_opcode) / (sizeof dlx_store_opcode[0]);`
249			`int idx;`
250
251			`for (idx = 0 ; idx < dlx_store_opcode_num; idx++)`
252			`if (dlx_store_opcode[idx].opcode == opc)`
253			`{`
254			`(*info->fprintf_func) (info->stream, "%s", dlx_store_opcode[idx].name);`
255			`operand_deliminator (info, dlx_store_opcode[idx].name);`
256			`(*info->fprintf_func) (info->stream, "0x%04x[r%d],", (int)imm16, (int)rs1);`
257			`(*info->fprintf_func) (info->stream, "r%d", (int)rs2);`
258			`return (unsigned char) IST_TYPE;`
259			`}`
260
261			`return (unsigned char) NIL;`
262			`}`
263
264			`/* Process the Arithmetic and Logical I-TYPE opcode. */`
265
266			`static unsigned char`
267			`dlx_aluI_type (struct disassemble_info* info)`
268			`{`
269			`struct _aluI_opcode`
270			`{`
271			`unsigned long opcode;`
272			`char *name;`
273			`}`
274			`dlx_aluI_opcode[] =`
275			`{`
276			`{ OPC(ADDIOP), "addi" }, /* Store byte. */`
277			`{ OPC(ADDUIOP), "addui" }, /* Store halfword. */`
278			`{ OPC(SUBIOP), "subi" }, /* Store word. */`
279			`{ OPC(SUBUIOP), "subui" }, /* Store word. */`
280			`{ OPC(ANDIOP), "andi" }, /* Store word. */`
281			`{ OPC(ORIOP), "ori" }, /* Store word. */`
282			`{ OPC(XORIOP), "xori" }, /* Store word. */`
283			`{ OPC(SLLIOP), "slli" }, /* Store word. */`
284			`{ OPC(SRAIOP), "srai" }, /* Store word. */`
285			`{ OPC(SRLIOP), "srli" }, /* Store word. */`
286			`{ OPC(SEQIOP), "seqi" }, /* Store word. */`
287			`{ OPC(SNEIOP), "snei" }, /* Store word. */`
288			`{ OPC(SLTIOP), "slti" }, /* Store word. */`
289			`{ OPC(SGTIOP), "sgti" }, /* Store word. */`
290			`{ OPC(SLEIOP), "slei" }, /* Store word. */`
291			`{ OPC(SGEIOP), "sgei" }, /* Store word. */`
292			`{ OPC(SEQUIOP), "sequi" }, /* Store word. */`
293			`{ OPC(SNEUIOP), "sneui" }, /* Store word. */`
294			`{ OPC(SLTUIOP), "sltui" }, /* Store word. */`
295			`{ OPC(SGTUIOP), "sgtui" }, /* Store word. */`
296			`{ OPC(SLEUIOP), "sleui" }, /* Store word. */`
297			`{ OPC(SGEUIOP), "sgeui" }, /* Store word. */`
298			`#if 0`
299			`{ OPC(MVTSOP), "mvts" }, /* Store word. */`
300			`{ OPC(MVFSOP), "mvfs" }, /* Store word. */`
301			`#endif`
302			`};`
303			`int dlx_aluI_opcode_num =`
304			`(sizeof dlx_aluI_opcode) / (sizeof dlx_aluI_opcode[0]);`
305			`int idx;`
306
307			`for (idx = 0 ; idx < dlx_aluI_opcode_num; idx++)`
308			`if (dlx_aluI_opcode[idx].opcode == opc)`
309			`{`
310			`(*info->fprintf_func) (info->stream, "%s", dlx_aluI_opcode[idx].name);`
311			`operand_deliminator (info, dlx_aluI_opcode[idx].name);`
312			`(*info->fprintf_func) (info->stream, "r%d,", (int)rs2);`
313			`(*info->fprintf_func) (info->stream, "r%d,", (int)rs1);`
314			`(*info->fprintf_func) (info->stream, "0x%04x", (int)imm16);`
315
316			`return (unsigned char) IAL_TYPE;`
317			`}`
318
319			`return (unsigned char) NIL;`
320			`}`
321
322			`/* Process the branch instruction. */`
323
324			`static unsigned char`
325			`dlx_br_type (struct disassemble_info* info)`
326			`{`
327			`struct _br_opcode`
328			`{`
329			`unsigned long opcode;`
330			`char *name;`
331			`}`
332			`dlx_br_opcode[] =`
333			`{`
334			`{ OPC(BEQOP), "beqz" }, /* Store byte. */`
335			`{ OPC(BNEOP), "bnez" } /* Store halfword. */`
336			`};`
337			`int dlx_br_opcode_num =`
338			`(sizeof dlx_br_opcode) / (sizeof dlx_br_opcode[0]);`
339			`int idx;`
340
341			`for (idx = 0 ; idx < dlx_br_opcode_num; idx++)`
342			`if (dlx_br_opcode[idx].opcode == opc)`
343			`{`
344			`if (imm16 & 0x00008000)`
345			`imm16 \|= 0xFFFF0000;`
346
347			`imm16 += (current_insn_addr + 4);`
348			`(*info->fprintf_func) (info->stream, "%s", dlx_br_opcode[idx].name);`
349			`operand_deliminator (info, dlx_br_opcode[idx].name);`
350			`(*info->fprintf_func) (info->stream, "r%d,", (int) rs1);`
351			`(*info->fprintf_func) (info->stream, "0x%08x", (int) imm16);`
352
353			`return (unsigned char) IBR_TYPE;`
354			`}`
355
356			`return (unsigned char) NIL;`
357			`}`
358
359			`/* Process the jump instruction. */`
360
361			`static unsigned char`
362			`dlx_jmp_type (struct disassemble_info* info)`
363			`{`
364			`struct _jmp_opcode`
365			`{`
366			`unsigned long opcode;`
367			`char *name;`
368			`}`
369			`dlx_jmp_opcode[] =`
370			`{`
371			`{ OPC(JOP), "j" }, /* Store byte. */`
372			`{ OPC(JALOP), "jal" }, /* Store halfword. */`
373			`{ OPC(BREAKOP), "break" }, /* Store halfword. */`
374			`{ OPC(TRAPOP), "trap" }, /* Store halfword. */`
375			`{ OPC(RFEOP), "rfe" } /* Store halfword. */`
376			`};`
377			`int dlx_jmp_opcode_num =`
378			`(sizeof dlx_jmp_opcode) / (sizeof dlx_jmp_opcode[0]);`
379			`int idx;`
380
381			`for (idx = 0 ; idx < dlx_jmp_opcode_num; idx++)`
382			`if (dlx_jmp_opcode[idx].opcode == opc)`
383			`{`
384			`if (imm26 & 0x02000000)`
385			`imm26 \|= 0xFC000000;`
386
387			`imm26 += (current_insn_addr + 4);`
388
389			`(*info->fprintf_func) (info->stream, "%s", dlx_jmp_opcode[idx].name);`
390			`operand_deliminator (info, dlx_jmp_opcode[idx].name);`
391			`(*info->fprintf_func) (info->stream, "0x%08x", (int)imm26);`
392
393			`return (unsigned char) IJ_TYPE;`
394			`}`
395
396			`return (unsigned char) NIL;`
397			`}`
398
399			`/* Process the jump register instruction. */`
400
401			`static unsigned char`
402			`dlx_jr_type (struct disassemble_info* info)`
403			`{`
404			`struct _jr_opcode`
405			`{`
406			`unsigned long opcode;`
407			`char *name;`
408			`}`
409			`dlx_jr_opcode[] =`
410			`{`
411			`{ OPC(JROP), "jr" }, /* Store byte. */`
412			`{ OPC(JALROP), "jalr" } /* Store halfword. */`
413			`};`
414			`int dlx_jr_opcode_num =`
415			`(sizeof dlx_jr_opcode) / (sizeof dlx_jr_opcode[0]);`
416			`int idx;`
417
418			`for (idx = 0 ; idx < dlx_jr_opcode_num; idx++)`
419			`if (dlx_jr_opcode[idx].opcode == opc)`
420			`{`
421			`(*info->fprintf_func) (info->stream, "%s", dlx_jr_opcode[idx].name);`
422			`operand_deliminator (info, dlx_jr_opcode[idx].name);`
423			`(*info->fprintf_func) (info->stream, "r%d", (int)rs1);`
424			`return (unsigned char) IJR_TYPE;`
425			`}`
426
427			`return (unsigned char) NIL;`
428			`}`
429
430			`typedef unsigned char (* dlx_insn) (struct disassemble_info *);`
431
432			`/* This is the main DLX insn handling routine. */`
433
434			`int`
435			`print_insn_dlx (bfd_vma memaddr, struct disassemble_info* info)`
436			`{`
437			`bfd_byte buffer[4];`
438			`int insn_idx;`
439			`unsigned long insn_word;`
440			`unsigned char rtn_code;`
441			`unsigned long dlx_insn_type[] =`
442			`{`
443			`(unsigned long) dlx_r_type,`
444			`(unsigned long) dlx_load_type,`
445			`(unsigned long) dlx_store_type,`
446			`(unsigned long) dlx_aluI_type,`
447			`(unsigned long) dlx_br_type,`
448			`(unsigned long) dlx_jmp_type,`
449			`(unsigned long) dlx_jr_type,`
450			`(unsigned long) NULL`
451			`};`
452			`int dlx_insn_type_num = ((sizeof dlx_insn_type) / (sizeof (unsigned long))) - 1;`
453			`int status =`
454			`(info->read_memory_func) (memaddr, (bfd_byte ) &buffer[0], 4, info);`
455
456			`if (status != 0)`
457			`{`
458			`(*info->memory_error_func) (status, memaddr, info);`
459			`return -1;`
460			`}`
461
462			`/* Now decode the insn */`
463			`insn_word = bfd_getb32 (buffer);`
464			`opc = dlx_get_opcode (insn_word);`
465			`rs1 = dlx_get_rs1 (insn_word);`
466			`rs2 = dlx_get_rs2 (insn_word);`
467			`rd = dlx_get_rdR (insn_word);`
468			`func = dlx_get_func (insn_word);`
469			`imm16= dlx_get_imm16 (insn_word);`
470			`imm26= dlx_get_imm26 (insn_word);`
471
472			`#if 0`
473			`printf ("print_insn_big_dlx: opc = 0x%02x\n"`
474			`" rs1 = 0x%02x\n"`
475			`" rs2 = 0x%02x\n"`
476			`" rd = 0x%02x\n"`
477			`" func = 0x%08x\n"`
478			`" imm16 = 0x%08x\n"`
479			`" imm26 = 0x%08x\n",`
480			`opc, rs1, rs2, rd, func, imm16, imm26);`
481			`#endif`
482
483			`/* Scan through all the insn type and print the insn out. */`
484			`rtn_code = 0;`
485			`current_insn_addr = (unsigned long) memaddr;`
486
487			`for (insn_idx = 0; dlx_insn_type[insn_idx] != 0x0; insn_idx++)`
488			`switch (((dlx_insn) (dlx_insn_type[insn_idx])) (info))`
489			`{`
490			`/* Found the correct opcode */`
491			`case R_TYPE:`
492			`case ILD_TYPE:`
493			`case IST_TYPE:`
494			`case IAL_TYPE:`
495			`case IBR_TYPE:`
496			`case IJ_TYPE:`
497			`case IJR_TYPE:`
498			`return 4;`
499
500			`/* Wrong insn type check next one. */`
501			`default:`
502			`case NIL:`
503			`continue;`
504
505			`/* All rest of the return code are not recongnized, treat it as error */`
506			`/* we should never get here, I hope! */`
507			`case R_ERROR:`
508			`return -1;`
509			`}`
510
511			`if (insn_idx == dlx_insn_type_num)`
512			`/* Well, does not recoganize this opcode. */`
513			`(*info->fprintf_func) (info->stream, "<%s>", "Unrecognized Opcode");`
514
515			`return 4;`
516			`}`