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/* Disassemble MSP430 instructions.
   Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
 
   Contributed by Dmitry Diky <diwil@mail.ru>
 
   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 <stdio.h>
#include <ctype.h>
#include <string.h>
#include <sys/types.h>
 
#include "dis-asm.h"
#include "opintl.h"
#include "libiberty.h"
 
#define DASM_SECTION
#include "opcode/msp430.h"
#undef DASM_SECTION
 
 
#define PS(x)   (0xffff & (x))
 
static unsigned short
msp430dis_opcode (bfd_vma addr, disassemble_info *info)
{
  bfd_byte buffer[2];
  int status;
 
  status = info->read_memory_func (addr, buffer, 2, info);
  if (status != 0)
    {
      info->memory_error_func (status, addr, info);
      return -1;
    }
  return bfd_getl16 (buffer);
}
 
static int
msp430_nooperands (struct msp430_opcode_s *opcode,
                   bfd_vma addr ATTRIBUTE_UNUSED,
                   unsigned short insn ATTRIBUTE_UNUSED,
                   char *comm,
                   int *cycles)
{
  /* Pop with constant.  */
  if (insn == 0x43b2)
    return 0;
  if (insn == opcode->bin_opcode)
    return 2;
 
  if (opcode->fmt == 0)
    {
      if ((insn & 0x0f00) != 3 || (insn & 0x0f00) != 2)
        return 0;
 
      strcpy (comm, "emulated...");
      *cycles = 1;
    }
  else
    {
      strcpy (comm, "return from interupt");
      *cycles = 5;
    }
 
  return 2;
}
 
static int
msp430_singleoperand (disassemble_info *info,
                      struct msp430_opcode_s *opcode,
                      bfd_vma addr,
                      unsigned short insn,
                      char *op,
                      char *comm,
                      int *cycles)
{
  int regs = 0, regd = 0;
  int ad = 0, as = 0;
  int where = 0;
  int cmd_len = 2;
  short dst = 0;
 
  regd = insn & 0x0f;
  regs = (insn & 0x0f00) >> 8;
  as = (insn & 0x0030) >> 4;
  ad = (insn & 0x0080) >> 7;
 
  switch (opcode->fmt)
    {
    case 0:                      /* Emulated work with dst register.  */
      if (regs != 2 && regs != 3 && regs != 1)
        return 0;
 
      /* Check if not clr insn.  */
      if (opcode->bin_opcode == 0x4300 && (ad || as))
        return 0;
 
      /* Check if really inc, incd insns.  */
      if ((opcode->bin_opcode & 0xff00) == 0x5300 && as == 3)
        return 0;
 
      if (ad == 0)
        {
          *cycles = 1;
 
          /* Register.  */
          if (regd == 0)
            {
              *cycles += 1;
              sprintf (op, "r0");
            }
          else if (regd == 1)
            sprintf (op, "r1");
 
          else if (regd == 2)
            sprintf (op, "r2");
 
          else
            sprintf (op, "r%d", regd);
        }
      else      /* ad == 1 msp430dis_opcode.  */
        {
          if (regd == 0)
            {
              /* PC relative.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              *cycles = 4;
              sprintf (op, "0x%04x", dst);
              sprintf (comm, "PC rel. abs addr 0x%04x",
                       PS ((short) (addr + 2) + dst));
            }
          else if (regd == 2)
            {
              /* Absolute.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              *cycles = 4;
              sprintf (op, "&0x%04x", PS (dst));
            }
          else
            {
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              *cycles = 4;
              sprintf (op, "%d(r%d)", dst, regd);
            }
        }
      break;
 
    case 2:     /* rrc, push, call, swpb, rra, sxt, push, call, reti etc...  */
      if (as == 0)
        {
          if (regd == 3)
            {
              /* Constsnts.  */
              sprintf (op, "#0");
              sprintf (comm, "r3 As==00");
            }
          else
            {
              /* Register.  */
              sprintf (op, "r%d", regd);
            }
          *cycles = 1;
        }
      else if (as == 2)
        {
          *cycles = 1;
          if (regd == 2)
            {
              sprintf (op, "#4");
              sprintf (comm, "r2 As==10");
            }
          else if (regd == 3)
            {
              sprintf (op, "#2");
              sprintf (comm, "r3 As==10");
            }
          else
            {
              *cycles = 3;
              /* Indexed register mode @Rn.  */
              sprintf (op, "@r%d", regd);
            }
        }
      else if (as == 3)
        {
          *cycles = 1;
          if (regd == 2)
            {
              sprintf (op, "#8");
              sprintf (comm, "r2 As==11");
            }
          else if (regd == 3)
            {
              sprintf (op, "#-1");
              sprintf (comm, "r3 As==11");
            }
          else if (regd == 0)
            {
              *cycles = 3;
              /* absolute. @pc+ */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              sprintf (op, "#%d", dst);
              sprintf (comm, "#0x%04x", PS (dst));
            }
          else
            {
              *cycles = 3;
              sprintf (op, "@r%d+", regd);
            }
        }
      else if (as == 1)
        {
          *cycles = 4;
          if (regd == 0)
            {
              /* PC relative.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              sprintf (op, "0x%04x", PS (dst));
              sprintf (comm, "PC rel. 0x%04x",
                       PS ((short) addr + 2 + dst));
            }
          else if (regd == 2)
            {
              /* Absolute.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              sprintf (op, "&0x%04x", PS (dst));
            }
          else if (regd == 3)
            {
              *cycles = 1;
              sprintf (op, "#1");
              sprintf (comm, "r3 As==01");
            }
          else
            {
              /* Indexd.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 2;
              sprintf (op, "%d(r%d)", dst, regd);
            }
        }
      break;
 
    case 3:                     /* Jumps.  */
      where = insn & 0x03ff;
      if (where & 0x200)
        where |= ~0x03ff;
      if (where > 512 || where < -511)
        return 0;
 
      where *= 2;
      sprintf (op, "$%+-8d", where + 2);
      sprintf (comm, "abs 0x%x", PS ((short) (addr) + 2 + where));
      *cycles = 2;
      return 2;
      break;
    default:
      cmd_len = 0;
    }
 
  return cmd_len;
}
 
static int
msp430_doubleoperand (disassemble_info *info,
                      struct msp430_opcode_s *opcode,
                      bfd_vma addr,
                      unsigned short insn,
                      char *op1,
                      char *op2,
                      char *comm1,
                      char *comm2,
                      int *cycles)
{
  int regs = 0, regd = 0;
  int ad = 0, as = 0;
  int cmd_len = 2;
  short dst = 0;
 
  regd = insn & 0x0f;
  regs = (insn & 0x0f00) >> 8;
  as = (insn & 0x0030) >> 4;
  ad = (insn & 0x0080) >> 7;
 
  if (opcode->fmt == 0)
    {
      /* Special case: rla and rlc are the only 2 emulated instructions that
         fall into two operand instructions.  */
      /* With dst, there are only:
         Rm             Register,
         x(Rm)          Indexed,
         0xXXXX         Relative,
         &0xXXXX        Absolute
         emulated_ins   dst
         basic_ins      dst, dst.  */
 
      if (regd != regs || as != ad)
        return 0;                /* May be 'data' section.  */
 
      if (ad == 0)
        {
          /* Register mode.  */
          if (regd == 3)
            {
              strcpy (comm1, _("Illegal as emulation instr"));
              return -1;
            }
 
          sprintf (op1, "r%d", regd);
          *cycles = 1;
        }
      else                      /* ad == 1 */
        {
          if (regd == 0)
            {
              /* PC relative, Symbolic.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 4;
              *cycles = 6;
              sprintf (op1, "0x%04x", PS (dst));
              sprintf (comm1, "PC rel. 0x%04x",
                       PS ((short) addr + 2 + dst));
 
            }
          else if (regd == 2)
            {
              /* Absolute.  */
              dst = msp430dis_opcode (addr + 2, info);
              /* If the 'src' field is not the same as the dst
                 then this is not an rla instruction.  */
              if (dst != msp430dis_opcode (addr + 4, info))
                return 0;
              cmd_len += 4;
              *cycles = 6;
              sprintf (op1, "&0x%04x", PS (dst));
            }
          else
            {
              /* Indexed.  */
              dst = msp430dis_opcode (addr + 2, info);
              cmd_len += 4;
              *cycles = 6;
              sprintf (op1, "%d(r%d)", dst, regd);
            }
        }
 
      *op2 = 0;
      *comm2 = 0;
      return cmd_len;
    }
 
  /* Two operands exactly.  */
  if (ad == 0 && regd == 3)
    {
      /* R2/R3 are illegal as dest: may be data section.  */
      strcpy (comm1, _("Illegal as 2-op instr"));
      return -1;
    }
 
  /* Source.  */
  if (as == 0)
    {
      *cycles = 1;
      if (regs == 3)
        {
          /* Constsnts.  */
          sprintf (op1, "#0");
          sprintf (comm1, "r3 As==00");
        }
      else
        {
          /* Register.  */
          sprintf (op1, "r%d", regs);
        }
    }
  else if (as == 2)
    {
      *cycles = 1;
 
      if (regs == 2)
        {
          sprintf (op1, "#4");
          sprintf (comm1, "r2 As==10");
        }
      else if (regs == 3)
        {
          sprintf (op1, "#2");
          sprintf (comm1, "r3 As==10");
        }
      else
        {
          *cycles = 2;
 
          /* Indexed register mode @Rn.  */
          sprintf (op1, "@r%d", regs);
        }
      if (!regs)
        *cycles = 3;
    }
  else if (as == 3)
    {
      if (regs == 2)
        {
          sprintf (op1, "#8");
          sprintf (comm1, "r2 As==11");
          *cycles = 1;
        }
      else if (regs == 3)
        {
          sprintf (op1, "#-1");
          sprintf (comm1, "r3 As==11");
          *cycles = 1;
        }
      else if (regs == 0)
        {
          *cycles = 3;
          /* Absolute. @pc+.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "#%d", dst);
          sprintf (comm1, "#0x%04x", PS (dst));
        }
      else
        {
          *cycles = 2;
          sprintf (op1, "@r%d+", regs);
        }
    }
  else if (as == 1)
    {
      if (regs == 0)
        {
          *cycles = 4;
          /* PC relative.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "0x%04x", PS (dst));
          sprintf (comm1, "PC rel. 0x%04x",
                   PS ((short) addr + 2 + dst));
        }
      else if (regs == 2)
        {
          *cycles = 2;
          /* Absolute.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "&0x%04x", PS (dst));
          sprintf (comm1, "0x%04x", PS (dst));
        }
      else if (regs == 3)
        {
          *cycles = 1;
          sprintf (op1, "#1");
          sprintf (comm1, "r3 As==01");
        }
      else
        {
          *cycles = 3;
          /* Indexed.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "%d(r%d)", dst, regs);
        }
    }
 
  /* Destination. Special care needed on addr + XXXX.  */
 
  if (ad == 0)
    {
      /* Register.  */
      if (regd == 0)
        {
          *cycles += 1;
          sprintf (op2, "r0");
        }
      else if (regd == 1)
        sprintf (op2, "r1");
 
      else if (regd == 2)
        sprintf (op2, "r2");
 
      else
        sprintf (op2, "r%d", regd);
    }
  else  /* ad == 1.  */
    {
      * cycles += 3;
 
      if (regd == 0)
        {
          /* PC relative.  */
          *cycles += 1;
          dst = msp430dis_opcode (addr + cmd_len, info);
          sprintf (op2, "0x%04x", PS (dst));
          sprintf (comm2, "PC rel. 0x%04x",
                   PS ((short) addr + cmd_len + dst));
          cmd_len += 2;
        }
      else if (regd == 2)
        {
          /* Absolute.  */
          dst = msp430dis_opcode (addr + cmd_len, info);
          cmd_len += 2;
          sprintf (op2, "&0x%04x", PS (dst));
        }
      else
        {
          dst = msp430dis_opcode (addr + cmd_len, info);
          cmd_len += 2;
          sprintf (op2, "%d(r%d)", dst, regd);
        }
    }
 
  return cmd_len;
}
 
static int
msp430_branchinstr (disassemble_info *info,
                    struct msp430_opcode_s *opcode ATTRIBUTE_UNUSED,
                    bfd_vma addr ATTRIBUTE_UNUSED,
                    unsigned short insn,
                    char *op1,
                    char *comm1,
                    int *cycles)
{
  int regs = 0, regd = 0;
  int ad = 0, as = 0;
  int cmd_len = 2;
  short dst = 0;
 
  regd = insn & 0x0f;
  regs = (insn & 0x0f00) >> 8;
  as = (insn & 0x0030) >> 4;
  ad = (insn & 0x0080) >> 7;
 
  if (regd != 0) /* Destination register is not a PC.  */
    return 0;
 
  /* dst is a source register.  */
  if (as == 0)
    {
      /* Constants.  */
      if (regs == 3)
        {
          *cycles = 1;
          sprintf (op1, "#0");
          sprintf (comm1, "r3 As==00");
        }
      else
        {
          /* Register.  */
          *cycles = 1;
          sprintf (op1, "r%d", regs);
        }
    }
  else if (as == 2)
    {
      if (regs == 2)
        {
          *cycles = 2;
          sprintf (op1, "#4");
          sprintf (comm1, "r2 As==10");
        }
      else if (regs == 3)
        {
          *cycles = 1;
          sprintf (op1, "#2");
          sprintf (comm1, "r3 As==10");
        }
      else
        {
          /* Indexed register mode @Rn.  */
          *cycles = 2;
          sprintf (op1, "@r%d", regs);
        }
    }
  else if (as == 3)
    {
      if (regs == 2)
        {
          *cycles = 1;
          sprintf (op1, "#8");
          sprintf (comm1, "r2 As==11");
        }
      else if (regs == 3)
        {
          *cycles = 1;
          sprintf (op1, "#-1");
          sprintf (comm1, "r3 As==11");
        }
      else if (regs == 0)
        {
          /* Absolute. @pc+  */
          *cycles = 3;
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "#0x%04x", PS (dst));
        }
      else
        {
          *cycles = 2;
          sprintf (op1, "@r%d+", regs);
        }
    }
  else if (as == 1)
    {
      * cycles = 3;
 
      if (regs == 0)
        {
          /* PC relative.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          (*cycles)++;
          sprintf (op1, "0x%04x", PS (dst));
          sprintf (comm1, "PC rel. 0x%04x",
                   PS ((short) addr + 2 + dst));
        }
      else if (regs == 2)
        {
          /* Absolute.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "&0x%04x", PS (dst));
        }
      else if (regs == 3)
        {
          (*cycles)--;
          sprintf (op1, "#1");
          sprintf (comm1, "r3 As==01");
        }
      else
        {
          /* Indexd.  */
          dst = msp430dis_opcode (addr + 2, info);
          cmd_len += 2;
          sprintf (op1, "%d(r%d)", dst, regs);
        }
    }
 
  return cmd_len;
}
 
int
print_insn_msp430 (bfd_vma addr, disassemble_info *info)
{
  void *stream = info->stream;
  fprintf_ftype prin = info->fprintf_func;
  struct msp430_opcode_s *opcode;
  char op1[32], op2[32], comm1[64], comm2[64];
  int cmd_len = 0;
  unsigned short insn;
  int cycles = 0;
  char *bc = "";
  char dinfo[32];               /* Debug purposes.  */
 
  insn = msp430dis_opcode (addr, info);
  sprintf (dinfo, "0x%04x", insn);
 
  if (((int) addr & 0xffff) > 0xffdf)
    {
      (*prin) (stream, "interrupt service routine at 0x%04x", 0xffff & insn);
      return 2;
    }
 
  *comm1 = 0;
  *comm2 = 0;
 
  for (opcode = msp430_opcodes; opcode->name; opcode++)
    {
      if ((insn & opcode->bin_mask) == opcode->bin_opcode
          && opcode->bin_opcode != 0x9300)
        {
          *op1 = 0;
          *op2 = 0;
          *comm1 = 0;
          *comm2 = 0;
 
          /* r0 as destination. Ad should be zero.  */
          if (opcode->insn_opnumb == 3 && (insn & 0x000f) == 0
              && (0x0080 & insn) == 0)
            {
              cmd_len =
                msp430_branchinstr (info, opcode, addr, insn, op1, comm1,
                                    &cycles);
              if (cmd_len)
                break;
            }
 
          switch (opcode->insn_opnumb)
            {
            case 0:
              cmd_len = msp430_nooperands (opcode, addr, insn, comm1, &cycles);
              break;
            case 2:
              cmd_len =
                msp430_doubleoperand (info, opcode, addr, insn, op1, op2,
                                      comm1, comm2, &cycles);
              if (insn & BYTE_OPERATION)
                bc = ".b";
              break;
            case 1:
              cmd_len =
                msp430_singleoperand (info, opcode, addr, insn, op1, comm1,
                                      &cycles);
              if (insn & BYTE_OPERATION && opcode->fmt != 3)
                bc = ".b";
              break;
            default:
              break;
            }
        }
 
      if (cmd_len)
        break;
    }
 
  dinfo[5] = 0;
 
  if (cmd_len < 1)
    {
      /* Unknown opcode, or invalid combination of operands.  */
      (*prin) (stream, ".word   0x%04x; ????", PS (insn));
      return 2;
    }
 
  (*prin) (stream, "%s%s", opcode->name, bc);
 
  if (*op1)
    (*prin) (stream, "\t%s", op1);
  if (*op2)
    (*prin) (stream, ",");
 
  if (strlen (op1) < 7)
    (*prin) (stream, "\t");
  if (!strlen (op1))
    (*prin) (stream, "\t");
 
  if (*op2)
    (*prin) (stream, "%s", op2);
  if (strlen (op2) < 8)
    (*prin) (stream, "\t");
 
  if (*comm1 || *comm2)
    (*prin) (stream, ";");
  else if (cycles)
    {
      if (*op2)
        (*prin) (stream, ";");
      else
        {
          if (strlen (op1) < 7)
            (*prin) (stream, ";");
          else
            (*prin) (stream, "\t;");
        }
    }
  if (*comm1)
    (*prin) (stream, "%s", comm1);
  if (*comm1 && *comm2)
    (*prin) (stream, ",");
  if (*comm2)
    (*prin) (stream, " %s", comm2);
  return cmd_len;
}

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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [opcodes/] [msp430-dis.c] - Blame information for rev 816

Line No.	Rev	Author	Line
1	38	julius	`/* Disassemble MSP430 instructions.`
2			`Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc.`
3
4			`Contributed by Dmitry Diky <diwil@mail.ru>`
5
6			`This file is part of the GNU opcodes library.`
7
8			`This library is free software; you can redistribute it and/or modify`
9			`it under the terms of the GNU General Public License as published by`
10			`the Free Software Foundation; either version 3, or (at your option)`
11			`any later version.`
12
13			`It is distributed in the hope that it will be useful, but WITHOUT`
14			`ANY WARRANTY; without even the implied warranty of MERCHANTABILITY`
15			`or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public`
16			`License for more details.`
17
18			`You should have received a copy of the GNU General Public License`
19			`along with this program; if not, write to the Free Software`
20			`Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,`
21			`MA 02110-1301, USA. */`
22
23			`#include <stdio.h>`
24			`#include <ctype.h>`
25			`#include <string.h>`
26			`#include <sys/types.h>`
27
28			`#include "dis-asm.h"`
29			`#include "opintl.h"`
30			`#include "libiberty.h"`
31
32			`#define DASM_SECTION`
33			`#include "opcode/msp430.h"`
34			`#undef DASM_SECTION`
35
36
37			`#define PS(x) (0xffff & (x))`
38
39			`static unsigned short`
40			`msp430dis_opcode (bfd_vma addr, disassemble_info *info)`
41			`{`
42			`bfd_byte buffer[2];`
43			`int status;`
44
45			`status = info->read_memory_func (addr, buffer, 2, info);`
46			`if (status != 0)`
47			`{`
48			`info->memory_error_func (status, addr, info);`
49			`return -1;`
50			`}`
51			`return bfd_getl16 (buffer);`
52			`}`
53
54			`static int`
55			`msp430_nooperands (struct msp430_opcode_s *opcode,`
56			`bfd_vma addr ATTRIBUTE_UNUSED,`
57			`unsigned short insn ATTRIBUTE_UNUSED,`
58			`char *comm,`
59			`int *cycles)`
60			`{`
61			`/* Pop with constant. */`
62			`if (insn == 0x43b2)`
63			`return 0;`
64			`if (insn == opcode->bin_opcode)`
65			`return 2;`
66
67			`if (opcode->fmt == 0)`
68			`{`
69			`if ((insn & 0x0f00) != 3 \|\| (insn & 0x0f00) != 2)`
70			`return 0;`
71
72			`strcpy (comm, "emulated...");`
73			`*cycles = 1;`
74			`}`
75			`else`
76			`{`
77			`strcpy (comm, "return from interupt");`
78			`*cycles = 5;`
79			`}`
80
81			`return 2;`
82			`}`
83
84			`static int`
85			`msp430_singleoperand (disassemble_info *info,`
86			`struct msp430_opcode_s *opcode,`
87			`bfd_vma addr,`
88			`unsigned short insn,`
89			`char *op,`
90			`char *comm,`
91			`int *cycles)`
92			`{`
93			`int regs = 0, regd = 0;`
94			`int ad = 0, as = 0;`
95			`int where = 0;`
96			`int cmd_len = 2;`
97			`short dst = 0;`
98
99			`regd = insn & 0x0f;`
100			`regs = (insn & 0x0f00) >> 8;`
101			`as = (insn & 0x0030) >> 4;`
102			`ad = (insn & 0x0080) >> 7;`
103
104			`switch (opcode->fmt)`
105			`{`
106			`case 0: /* Emulated work with dst register. */`
107			`if (regs != 2 && regs != 3 && regs != 1)`
108			`return 0;`
109
110			`/* Check if not clr insn. */`
111			`if (opcode->bin_opcode == 0x4300 && (ad \|\| as))`
112			`return 0;`
113
114			`/* Check if really inc, incd insns. */`
115			`if ((opcode->bin_opcode & 0xff00) == 0x5300 && as == 3)`
116			`return 0;`
117
118			`if (ad == 0)`
119			`{`
120			`*cycles = 1;`
121
122			`/* Register. */`
123			`if (regd == 0)`
124			`{`
125			`*cycles += 1;`
126			`sprintf (op, "r0");`
127			`}`
128			`else if (regd == 1)`
129			`sprintf (op, "r1");`
130
131			`else if (regd == 2)`
132			`sprintf (op, "r2");`
133
134			`else`
135			`sprintf (op, "r%d", regd);`
136			`}`
137			`else /* ad == 1 msp430dis_opcode. */`
138			`{`
139			`if (regd == 0)`
140			`{`
141			`/* PC relative. */`
142			`dst = msp430dis_opcode (addr + 2, info);`
143			`cmd_len += 2;`
144			`*cycles = 4;`
145			`sprintf (op, "0x%04x", dst);`
146			`sprintf (comm, "PC rel. abs addr 0x%04x",`
147			`PS ((short) (addr + 2) + dst));`
148			`}`
149			`else if (regd == 2)`
150			`{`
151			`/* Absolute. */`
152			`dst = msp430dis_opcode (addr + 2, info);`
153			`cmd_len += 2;`
154			`*cycles = 4;`
155			`sprintf (op, "&0x%04x", PS (dst));`
156			`}`
157			`else`
158			`{`
159			`dst = msp430dis_opcode (addr + 2, info);`
160			`cmd_len += 2;`
161			`*cycles = 4;`
162			`sprintf (op, "%d(r%d)", dst, regd);`
163			`}`
164			`}`
165			`break;`
166
167			`case 2: /* rrc, push, call, swpb, rra, sxt, push, call, reti etc... */`
168			`if (as == 0)`
169			`{`
170			`if (regd == 3)`
171			`{`
172			`/* Constsnts. */`
173			`sprintf (op, "#0");`
174			`sprintf (comm, "r3 As==00");`
175			`}`
176			`else`
177			`{`
178			`/* Register. */`
179			`sprintf (op, "r%d", regd);`
180			`}`
181			`*cycles = 1;`
182			`}`
183			`else if (as == 2)`
184			`{`
185			`*cycles = 1;`
186			`if (regd == 2)`
187			`{`
188			`sprintf (op, "#4");`
189			`sprintf (comm, "r2 As==10");`
190			`}`
191			`else if (regd == 3)`
192			`{`
193			`sprintf (op, "#2");`
194			`sprintf (comm, "r3 As==10");`
195			`}`
196			`else`
197			`{`
198			`*cycles = 3;`
199			`/* Indexed register mode @Rn. */`
200			`sprintf (op, "@r%d", regd);`
201			`}`
202			`}`
203			`else if (as == 3)`
204			`{`
205			`*cycles = 1;`
206			`if (regd == 2)`
207			`{`
208			`sprintf (op, "#8");`
209			`sprintf (comm, "r2 As==11");`
210			`}`
211			`else if (regd == 3)`
212			`{`
213			`sprintf (op, "#-1");`
214			`sprintf (comm, "r3 As==11");`
215			`}`
216			`else if (regd == 0)`
217			`{`
218			`*cycles = 3;`
219			`/* absolute. @pc+ */`
220			`dst = msp430dis_opcode (addr + 2, info);`
221			`cmd_len += 2;`
222			`sprintf (op, "#%d", dst);`
223			`sprintf (comm, "#0x%04x", PS (dst));`
224			`}`
225			`else`
226			`{`
227			`*cycles = 3;`
228			`sprintf (op, "@r%d+", regd);`
229			`}`
230			`}`
231			`else if (as == 1)`
232			`{`
233			`*cycles = 4;`
234			`if (regd == 0)`
235			`{`
236			`/* PC relative. */`
237			`dst = msp430dis_opcode (addr + 2, info);`
238			`cmd_len += 2;`
239			`sprintf (op, "0x%04x", PS (dst));`
240			`sprintf (comm, "PC rel. 0x%04x",`
241			`PS ((short) addr + 2 + dst));`
242			`}`
243			`else if (regd == 2)`
244			`{`
245			`/* Absolute. */`
246			`dst = msp430dis_opcode (addr + 2, info);`
247			`cmd_len += 2;`
248			`sprintf (op, "&0x%04x", PS (dst));`
249			`}`
250			`else if (regd == 3)`
251			`{`
252			`*cycles = 1;`
253			`sprintf (op, "#1");`
254			`sprintf (comm, "r3 As==01");`
255			`}`
256			`else`
257			`{`
258			`/* Indexd. */`
259			`dst = msp430dis_opcode (addr + 2, info);`
260			`cmd_len += 2;`
261			`sprintf (op, "%d(r%d)", dst, regd);`
262			`}`
263			`}`
264			`break;`
265
266			`case 3: /* Jumps. */`
267			`where = insn & 0x03ff;`
268			`if (where & 0x200)`
269			`where \|= ~0x03ff;`
270			`if (where > 512 \|\| where < -511)`
271			`return 0;`
272
273			`where *= 2;`
274			`sprintf (op, "$%+-8d", where + 2);`
275			`sprintf (comm, "abs 0x%x", PS ((short) (addr) + 2 + where));`
276			`*cycles = 2;`
277			`return 2;`
278			`break;`
279			`default:`
280			`cmd_len = 0;`
281			`}`
282
283			`return cmd_len;`
284			`}`
285
286			`static int`
287			`msp430_doubleoperand (disassemble_info *info,`
288			`struct msp430_opcode_s *opcode,`
289			`bfd_vma addr,`
290			`unsigned short insn,`
291			`char *op1,`
292			`char *op2,`
293			`char *comm1,`
294			`char *comm2,`
295			`int *cycles)`
296			`{`
297			`int regs = 0, regd = 0;`
298			`int ad = 0, as = 0;`
299			`int cmd_len = 2;`
300			`short dst = 0;`
301
302			`regd = insn & 0x0f;`
303			`regs = (insn & 0x0f00) >> 8;`
304			`as = (insn & 0x0030) >> 4;`
305			`ad = (insn & 0x0080) >> 7;`
306
307			`if (opcode->fmt == 0)`
308			`{`
309			`/* Special case: rla and rlc are the only 2 emulated instructions that`
310			`fall into two operand instructions. */`
311			`/* With dst, there are only:`
312			`Rm Register,`
313			`x(Rm) Indexed,`
314			`0xXXXX Relative,`
315			`&0xXXXX Absolute`
316			`emulated_ins dst`
317			`basic_ins dst, dst. */`
318
319			`if (regd != regs \|\| as != ad)`
320			`return 0; /* May be 'data' section. */`
321
322			`if (ad == 0)`
323			`{`
324			`/* Register mode. */`
325			`if (regd == 3)`
326			`{`
327			`strcpy (comm1, _("Illegal as emulation instr"));`
328			`return -1;`
329			`}`
330
331			`sprintf (op1, "r%d", regd);`
332			`*cycles = 1;`
333			`}`
334			`else /* ad == 1 */`
335			`{`
336			`if (regd == 0)`
337			`{`
338			`/* PC relative, Symbolic. */`
339			`dst = msp430dis_opcode (addr + 2, info);`
340			`cmd_len += 4;`
341			`*cycles = 6;`
342			`sprintf (op1, "0x%04x", PS (dst));`
343			`sprintf (comm1, "PC rel. 0x%04x",`
344			`PS ((short) addr + 2 + dst));`
345
346			`}`
347			`else if (regd == 2)`
348			`{`
349			`/* Absolute. */`
350			`dst = msp430dis_opcode (addr + 2, info);`
351			`/* If the 'src' field is not the same as the dst`
352			`then this is not an rla instruction. */`
353			`if (dst != msp430dis_opcode (addr + 4, info))`
354			`return 0;`
355			`cmd_len += 4;`
356			`*cycles = 6;`
357			`sprintf (op1, "&0x%04x", PS (dst));`
358			`}`
359			`else`
360			`{`
361			`/* Indexed. */`
362			`dst = msp430dis_opcode (addr + 2, info);`
363			`cmd_len += 4;`
364			`*cycles = 6;`
365			`sprintf (op1, "%d(r%d)", dst, regd);`
366			`}`
367			`}`
368
369			`*op2 = 0;`
370			`*comm2 = 0;`
371			`return cmd_len;`
372			`}`
373
374			`/* Two operands exactly. */`
375			`if (ad == 0 && regd == 3)`
376			`{`
377			`/* R2/R3 are illegal as dest: may be data section. */`
378			`strcpy (comm1, _("Illegal as 2-op instr"));`
379			`return -1;`
380			`}`
381
382			`/* Source. */`
383			`if (as == 0)`
384			`{`
385			`*cycles = 1;`
386			`if (regs == 3)`
387			`{`
388			`/* Constsnts. */`
389			`sprintf (op1, "#0");`
390			`sprintf (comm1, "r3 As==00");`
391			`}`
392			`else`
393			`{`
394			`/* Register. */`
395			`sprintf (op1, "r%d", regs);`
396			`}`
397			`}`
398			`else if (as == 2)`
399			`{`
400			`*cycles = 1;`
401
402			`if (regs == 2)`
403			`{`
404			`sprintf (op1, "#4");`
405			`sprintf (comm1, "r2 As==10");`
406			`}`
407			`else if (regs == 3)`
408			`{`
409			`sprintf (op1, "#2");`
410			`sprintf (comm1, "r3 As==10");`
411			`}`
412			`else`
413			`{`
414			`*cycles = 2;`
415
416			`/* Indexed register mode @Rn. */`
417			`sprintf (op1, "@r%d", regs);`
418			`}`
419			`if (!regs)`
420			`*cycles = 3;`
421			`}`
422			`else if (as == 3)`
423			`{`
424			`if (regs == 2)`
425			`{`
426			`sprintf (op1, "#8");`
427			`sprintf (comm1, "r2 As==11");`
428			`*cycles = 1;`
429			`}`
430			`else if (regs == 3)`
431			`{`
432			`sprintf (op1, "#-1");`
433			`sprintf (comm1, "r3 As==11");`
434			`*cycles = 1;`
435			`}`
436			`else if (regs == 0)`
437			`{`
438			`*cycles = 3;`
439			`/* Absolute. @pc+. */`
440			`dst = msp430dis_opcode (addr + 2, info);`
441			`cmd_len += 2;`
442			`sprintf (op1, "#%d", dst);`
443			`sprintf (comm1, "#0x%04x", PS (dst));`
444			`}`
445			`else`
446			`{`
447			`*cycles = 2;`
448			`sprintf (op1, "@r%d+", regs);`
449			`}`
450			`}`
451			`else if (as == 1)`
452			`{`
453			`if (regs == 0)`
454			`{`
455			`*cycles = 4;`
456			`/* PC relative. */`
457			`dst = msp430dis_opcode (addr + 2, info);`
458			`cmd_len += 2;`
459			`sprintf (op1, "0x%04x", PS (dst));`
460			`sprintf (comm1, "PC rel. 0x%04x",`
461			`PS ((short) addr + 2 + dst));`
462			`}`
463			`else if (regs == 2)`
464			`{`
465			`*cycles = 2;`
466			`/* Absolute. */`
467			`dst = msp430dis_opcode (addr + 2, info);`
468			`cmd_len += 2;`
469			`sprintf (op1, "&0x%04x", PS (dst));`
470			`sprintf (comm1, "0x%04x", PS (dst));`
471			`}`
472			`else if (regs == 3)`
473			`{`
474			`*cycles = 1;`
475			`sprintf (op1, "#1");`
476			`sprintf (comm1, "r3 As==01");`
477			`}`
478			`else`
479			`{`
480			`*cycles = 3;`
481			`/* Indexed. */`
482			`dst = msp430dis_opcode (addr + 2, info);`
483			`cmd_len += 2;`
484			`sprintf (op1, "%d(r%d)", dst, regs);`
485			`}`
486			`}`
487
488			`/* Destination. Special care needed on addr + XXXX. */`
489
490			`if (ad == 0)`
491			`{`
492			`/* Register. */`
493			`if (regd == 0)`
494			`{`
495			`*cycles += 1;`
496			`sprintf (op2, "r0");`
497			`}`
498			`else if (regd == 1)`
499			`sprintf (op2, "r1");`
500
501			`else if (regd == 2)`
502			`sprintf (op2, "r2");`
503
504			`else`
505			`sprintf (op2, "r%d", regd);`
506			`}`
507			`else /* ad == 1. */`
508			`{`
509			`* cycles += 3;`
510
511			`if (regd == 0)`
512			`{`
513			`/* PC relative. */`
514			`*cycles += 1;`
515			`dst = msp430dis_opcode (addr + cmd_len, info);`
516			`sprintf (op2, "0x%04x", PS (dst));`
517			`sprintf (comm2, "PC rel. 0x%04x",`
518			`PS ((short) addr + cmd_len + dst));`
519			`cmd_len += 2;`
520			`}`
521			`else if (regd == 2)`
522			`{`
523			`/* Absolute. */`
524			`dst = msp430dis_opcode (addr + cmd_len, info);`
525			`cmd_len += 2;`
526			`sprintf (op2, "&0x%04x", PS (dst));`
527			`}`
528			`else`
529			`{`
530			`dst = msp430dis_opcode (addr + cmd_len, info);`
531			`cmd_len += 2;`
532			`sprintf (op2, "%d(r%d)", dst, regd);`
533			`}`
534			`}`
535
536			`return cmd_len;`
537			`}`
538
539			`static int`
540			`msp430_branchinstr (disassemble_info *info,`
541			`struct msp430_opcode_s *opcode ATTRIBUTE_UNUSED,`
542			`bfd_vma addr ATTRIBUTE_UNUSED,`
543			`unsigned short insn,`
544			`char *op1,`
545			`char *comm1,`
546			`int *cycles)`
547			`{`
548			`int regs = 0, regd = 0;`
549			`int ad = 0, as = 0;`
550			`int cmd_len = 2;`
551			`short dst = 0;`
552
553			`regd = insn & 0x0f;`
554			`regs = (insn & 0x0f00) >> 8;`
555			`as = (insn & 0x0030) >> 4;`
556			`ad = (insn & 0x0080) >> 7;`
557
558			`if (regd != 0) /* Destination register is not a PC. */`
559			`return 0;`
560
561			`/* dst is a source register. */`
562			`if (as == 0)`
563			`{`
564			`/* Constants. */`
565			`if (regs == 3)`
566			`{`
567			`*cycles = 1;`
568			`sprintf (op1, "#0");`
569			`sprintf (comm1, "r3 As==00");`
570			`}`
571			`else`
572			`{`
573			`/* Register. */`
574			`*cycles = 1;`
575			`sprintf (op1, "r%d", regs);`
576			`}`
577			`}`
578			`else if (as == 2)`
579			`{`
580			`if (regs == 2)`
581			`{`
582			`*cycles = 2;`
583			`sprintf (op1, "#4");`
584			`sprintf (comm1, "r2 As==10");`
585			`}`
586			`else if (regs == 3)`
587			`{`
588			`*cycles = 1;`
589			`sprintf (op1, "#2");`
590			`sprintf (comm1, "r3 As==10");`
591			`}`
592			`else`
593			`{`
594			`/* Indexed register mode @Rn. */`
595			`*cycles = 2;`
596			`sprintf (op1, "@r%d", regs);`
597			`}`
598			`}`
599			`else if (as == 3)`
600			`{`
601			`if (regs == 2)`
602			`{`
603			`*cycles = 1;`
604			`sprintf (op1, "#8");`
605			`sprintf (comm1, "r2 As==11");`
606			`}`
607			`else if (regs == 3)`
608			`{`
609			`*cycles = 1;`
610			`sprintf (op1, "#-1");`
611			`sprintf (comm1, "r3 As==11");`
612			`}`
613			`else if (regs == 0)`
614			`{`
615			`/* Absolute. @pc+ */`
616			`*cycles = 3;`
617			`dst = msp430dis_opcode (addr + 2, info);`
618			`cmd_len += 2;`
619			`sprintf (op1, "#0x%04x", PS (dst));`
620			`}`
621			`else`
622			`{`
623			`*cycles = 2;`
624			`sprintf (op1, "@r%d+", regs);`
625			`}`
626			`}`
627			`else if (as == 1)`
628			`{`
629			`* cycles = 3;`
630
631			`if (regs == 0)`
632			`{`
633			`/* PC relative. */`
634			`dst = msp430dis_opcode (addr + 2, info);`
635			`cmd_len += 2;`
636			`(*cycles)++;`
637			`sprintf (op1, "0x%04x", PS (dst));`
638			`sprintf (comm1, "PC rel. 0x%04x",`
639			`PS ((short) addr + 2 + dst));`
640			`}`
641			`else if (regs == 2)`
642			`{`
643			`/* Absolute. */`
644			`dst = msp430dis_opcode (addr + 2, info);`
645			`cmd_len += 2;`
646			`sprintf (op1, "&0x%04x", PS (dst));`
647			`}`
648			`else if (regs == 3)`
649			`{`
650			`(*cycles)--;`
651			`sprintf (op1, "#1");`
652			`sprintf (comm1, "r3 As==01");`
653			`}`
654			`else`
655			`{`
656			`/* Indexd. */`
657			`dst = msp430dis_opcode (addr + 2, info);`
658			`cmd_len += 2;`
659			`sprintf (op1, "%d(r%d)", dst, regs);`
660			`}`
661			`}`
662
663			`return cmd_len;`
664			`}`
665
666			`int`
667			`print_insn_msp430 (bfd_vma addr, disassemble_info *info)`
668			`{`
669			`void *stream = info->stream;`
670			`fprintf_ftype prin = info->fprintf_func;`
671			`struct msp430_opcode_s *opcode;`
672			`char op1[32], op2[32], comm1[64], comm2[64];`
673			`int cmd_len = 0;`
674			`unsigned short insn;`
675			`int cycles = 0;`
676			`char *bc = "";`
677			`char dinfo[32]; /* Debug purposes. */`
678
679			`insn = msp430dis_opcode (addr, info);`
680			`sprintf (dinfo, "0x%04x", insn);`
681
682			`if (((int) addr & 0xffff) > 0xffdf)`
683			`{`
684			`(*prin) (stream, "interrupt service routine at 0x%04x", 0xffff & insn);`
685			`return 2;`
686			`}`
687
688			`*comm1 = 0;`
689			`*comm2 = 0;`
690
691			`for (opcode = msp430_opcodes; opcode->name; opcode++)`
692			`{`
693			`if ((insn & opcode->bin_mask) == opcode->bin_opcode`
694			`&& opcode->bin_opcode != 0x9300)`
695			`{`
696			`*op1 = 0;`
697			`*op2 = 0;`
698			`*comm1 = 0;`
699			`*comm2 = 0;`
700
701			`/* r0 as destination. Ad should be zero. */`
702			`if (opcode->insn_opnumb == 3 && (insn & 0x000f) == 0`
703			`&& (0x0080 & insn) == 0)`
704			`{`
705			`cmd_len =`
706			`msp430_branchinstr (info, opcode, addr, insn, op1, comm1,`
707			`&cycles);`
708			`if (cmd_len)`
709			`break;`
710			`}`
711
712			`switch (opcode->insn_opnumb)`
713			`{`
714			`case 0:`
715			`cmd_len = msp430_nooperands (opcode, addr, insn, comm1, &cycles);`
716			`break;`
717			`case 2:`
718			`cmd_len =`
719			`msp430_doubleoperand (info, opcode, addr, insn, op1, op2,`
720			`comm1, comm2, &cycles);`
721			`if (insn & BYTE_OPERATION)`
722			`bc = ".b";`
723			`break;`
724			`case 1:`
725			`cmd_len =`
726			`msp430_singleoperand (info, opcode, addr, insn, op1, comm1,`
727			`&cycles);`
728			`if (insn & BYTE_OPERATION && opcode->fmt != 3)`
729			`bc = ".b";`
730			`break;`
731			`default:`
732			`break;`
733			`}`
734			`}`
735
736			`if (cmd_len)`
737			`break;`
738			`}`
739
740			`dinfo[5] = 0;`
741
742			`if (cmd_len < 1)`
743			`{`
744			`/* Unknown opcode, or invalid combination of operands. */`
745			`(*prin) (stream, ".word 0x%04x; ????", PS (insn));`
746			`return 2;`
747			`}`
748
749			`(*prin) (stream, "%s%s", opcode->name, bc);`
750
751			`if (*op1)`
752			`(*prin) (stream, "\t%s", op1);`
753			`if (*op2)`
754			`(*prin) (stream, ",");`
755
756			`if (strlen (op1) < 7)`
757			`(*prin) (stream, "\t");`
758			`if (!strlen (op1))`
759			`(*prin) (stream, "\t");`
760
761			`if (*op2)`
762			`(*prin) (stream, "%s", op2);`
763			`if (strlen (op2) < 8)`
764			`(*prin) (stream, "\t");`
765
766			`if (comm1 \|\| comm2)`
767			`(*prin) (stream, ";");`
768			`else if (cycles)`
769			`{`
770			`if (*op2)`
771			`(*prin) (stream, ";");`
772			`else`
773			`{`
774			`if (strlen (op1) < 7)`
775			`(*prin) (stream, ";");`
776			`else`
777			`(*prin) (stream, "\t;");`
778			`}`
779			`}`
780			`if (*comm1)`
781			`(*prin) (stream, "%s", comm1);`
782			`if (comm1 && comm2)`
783			`(*prin) (stream, ",");`
784			`if (*comm2)`
785			`(*prin) (stream, " %s", comm2);`
786			`return cmd_len;`
787			`}`