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/* Disassembly routines for TMS320C54X architecture
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/* Disassembly routines for TMS320C54X architecture
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Copyright 1999, 2000, 2001, 2007 Free Software Foundation, Inc.
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Copyright 1999, 2000, 2001, 2005, 2007, 2009 Free Software Foundation, Inc.
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Contributed by Timothy Wall (twall@cygnus.com)
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Contributed by Timothy Wall (twall@cygnus.com)
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This file is part of the GNU opcodes library.
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This file is part of the GNU opcodes library.
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This library is free software; you can redistribute it and/or modify
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This library is free software; you can redistribute it and/or modify
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#include "sysdep.h"
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#include "sysdep.h"
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#include "dis-asm.h"
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#include "dis-asm.h"
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#include "opcode/tic54x.h"
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#include "opcode/tic54x.h"
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#include "coff/tic54x.h"
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#include "coff/tic54x.h"
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static int has_lkaddr (unsigned short, const template *);
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static int has_lkaddr (unsigned short, const insn_template *);
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static int get_insn_size (unsigned short, const template *);
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static int get_insn_size (unsigned short, const insn_template *);
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static int print_instruction (disassemble_info *, bfd_vma,
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static int print_instruction (disassemble_info *, bfd_vma,
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unsigned short, const char *,
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unsigned short, const char *,
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const enum optype [], int, int);
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const enum optype [], int, int);
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static int print_parallel_instruction (disassemble_info *, bfd_vma,
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static int print_parallel_instruction (disassemble_info *, bfd_vma,
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unsigned short,
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unsigned short,
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const template *, int);
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const insn_template *, int);
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static int sprint_dual_address (disassemble_info *,char [],
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static int sprint_dual_address (disassemble_info *,char [],
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unsigned short);
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unsigned short);
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static int sprint_indirect_address (disassemble_info *,char [],
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static int sprint_indirect_address (disassemble_info *,char [],
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unsigned short);
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unsigned short);
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static int sprint_direct_address (disassemble_info *,char [],
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static int sprint_direct_address (disassemble_info *,char [],
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print_insn_tic54x (bfd_vma memaddr, disassemble_info *info)
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print_insn_tic54x (bfd_vma memaddr, disassemble_info *info)
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{
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{
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bfd_byte opbuf[2];
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bfd_byte opbuf[2];
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unsigned short opcode;
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unsigned short opcode;
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int status, size;
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int status, size;
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const template* tm;
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const insn_template* tm;
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status = (*info->read_memory_func) (memaddr, opbuf, 2, info);
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status = (*info->read_memory_func) (memaddr, opbuf, 2, info);
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if (status != 0)
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if (status != 0)
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{
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{
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(*info->memory_error_func) (status, memaddr, info);
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(*info->memory_error_func) (status, memaddr, info);
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return size * 2;
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return size * 2;
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}
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}
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static int
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static int
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has_lkaddr (unsigned short memdata, const template *tm)
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has_lkaddr (unsigned short memdata, const insn_template *tm)
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{
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{
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return (IS_LKADDR (memdata)
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return (IS_LKADDR (memdata)
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&& (OPTYPE (tm->operand_types[0]) == OP_Smem
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&& (OPTYPE (tm->operand_types[0]) == OP_Smem
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|| OPTYPE (tm->operand_types[1]) == OP_Smem
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|| OPTYPE (tm->operand_types[1]) == OP_Smem
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|| OPTYPE (tm->operand_types[2]) == OP_Smem
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|| OPTYPE (tm->operand_types[2]) == OP_Smem
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|| OPTYPE (tm->operand_types[1]) == OP_Lmem));
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|| OPTYPE (tm->operand_types[1]) == OP_Lmem));
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}
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}
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/* always returns 1 (whether an insn template was found) since we provide an
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/* always returns 1 (whether an insn template was found) since we provide an
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"unknown instruction" template */
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"unknown instruction" template */
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const template*
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const insn_template*
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tic54x_get_insn (disassemble_info *info, bfd_vma addr,
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tic54x_get_insn (disassemble_info *info, bfd_vma addr,
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unsigned short memdata, int *size)
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unsigned short memdata, int *size)
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{
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{
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const template *tm = NULL;
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const insn_template *tm = NULL;
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for (tm = tic54x_optab; tm->name; tm++)
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for (tm = tic54x_optab; tm->name; tm++)
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{
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{
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if (tm->opcode == (memdata & tm->mask))
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if (tm->opcode == (memdata & tm->mask))
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{
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{
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if (size) *size = get_insn_size (memdata, tm);
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if (size) *size = get_insn_size (memdata, tm);
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return tm;
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return tm;
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}
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}
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}
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}
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}
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}
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for (tm = (template *) tic54x_paroptab; tm->name; tm++)
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for (tm = (insn_template *) tic54x_paroptab; tm->name; tm++)
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{
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{
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if (tm->opcode == (memdata & tm->mask))
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if (tm->opcode == (memdata & tm->mask))
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{
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{
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if (size) *size = get_insn_size (memdata, tm);
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if (size) *size = get_insn_size (memdata, tm);
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return tm;
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return tm;
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if (size) *size = 1;
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if (size) *size = 1;
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return &tic54x_unknown_opcode;
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return &tic54x_unknown_opcode;
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}
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}
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static int
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static int
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get_insn_size (unsigned short memdata, const template *insn)
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get_insn_size (unsigned short memdata, const insn_template *insn)
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{
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{
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int size;
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int size;
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if (insn->flags & FL_PAR)
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if (insn->flags & FL_PAR)
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{
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{
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info->fprintf_func (info->stream, "%s%s", comma, operand[i]);
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info->fprintf_func (info->stream, "%s%s", comma, operand[i]);
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break;
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break;
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case OP_CC3:
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case OP_CC3:
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{
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{
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const char *code[] = { "eq", "lt", "gt", "neq" };
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const char *code[] = { "eq", "lt", "gt", "neq" };
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sprintf (operand[i], code[CC3 (opcode)]);
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/* Do not use sprintf with only two parameters as a
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compiler warning could be generated in such conditions. */
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sprintf (operand[i], "%s", code[CC3 (opcode)]);
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info->fprintf_func (info->stream, "%s%s", comma, operand[i]);
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info->fprintf_func (info->stream, "%s%s", comma, operand[i]);
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break;
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break;
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}
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}
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case OP_123:
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case OP_123:
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{
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{
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static int
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static int
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print_parallel_instruction (info, memaddr, opcode, ptm, size)
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print_parallel_instruction (info, memaddr, opcode, ptm, size)
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disassemble_info *info;
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disassemble_info *info;
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bfd_vma memaddr;
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bfd_vma memaddr;
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unsigned short opcode;
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unsigned short opcode;
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const template *ptm;
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const insn_template *ptm;
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int size;
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int size;
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{
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{
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print_instruction (info, memaddr, opcode,
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print_instruction (info, memaddr, opcode,
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ptm->name, ptm->operand_types, size, 0);
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ptm->name, ptm->operand_types, size, 0);
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info->fprintf_func (info->stream, " || ");
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info->fprintf_func (info->stream, " || ");
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