1
/* Disassembler interface for targets using CGEN. -*- C -*-
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CGEN: Cpu tools GENerator
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THIS FILE IS MACHINE GENERATED WITH CGEN.
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- the resultant file is machine generated, cgen-dis.in isn't
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007,
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2008, 2010 Free Software Foundation, Inc.
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This file is part of libopcodes.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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/* ??? Eventually more and more of this stuff can go to cpu-independent files.
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#include "libiberty.h"
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#include "xc16x-desc.h"
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#include "xc16x-opc.h"
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/* Default text to print if an instruction isn't recognized. */
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#define UNKNOWN_INSN_MSG _("*unknown*")
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static void print_normal
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(CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
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static void print_address
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(CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
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static void print_keyword
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(CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
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static void print_insn_normal
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(CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
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(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
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static int default_print_insn
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(CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
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(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
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/* -- disassembler routines inserted here. */
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/* Print an operand with a "." prefix.
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NOTE: This prints the operand in hex.
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??? This exists to maintain disassembler compatibility with previous
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versions. Ideally we'd print the "." in print_dot. */
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print_with_dot_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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unsigned attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, ".");
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info->fprintf_func (info->stream, "0x%lx", value);
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/* Print an operand with a "#pof:" prefix.
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NOTE: This prints the operand as an address.
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??? This exists to maintain disassembler compatibility with previous
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versions. Ideally we'd print "#pof:" in print_pof. */
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print_with_pof_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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unsigned attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "#pof:");
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info->fprintf_func (info->stream, "0x%lx", (long) value);
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/* Print an operand with a "#pag:" prefix.
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NOTE: This prints the operand in hex.
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??? This exists to maintain disassembler compatibility with previous
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versions. Ideally we'd print "#pag:" in print_pag. */
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print_with_pag_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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unsigned attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "#pag:");
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info->fprintf_func (info->stream, "0x%lx", value);
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/* Print a 'pof:' prefix to an operand. */
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print_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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/* Print a 'pag:' prefix to an operand. */
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print_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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/* Print a 'sof:' prefix to an operand. */
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print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "sof:");
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/* Print a 'seg:' prefix to an operand. */
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print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "seg:");
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/* Print a '#' prefix to an operand. */
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print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "#");
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/* Print a '.' prefix to an operand. */
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print_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info ATTRIBUTE_UNUSED,
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long value ATTRIBUTE_UNUSED,
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unsigned int attrs ATTRIBUTE_UNUSED,
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bfd_vma pc ATTRIBUTE_UNUSED,
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int length ATTRIBUTE_UNUSED)
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void xc16x_cgen_print_operand
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(CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
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/* Main entry point for printing operands.
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XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
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of dis-asm.h on cgen.h.
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This function is basically just a big switch statement. Earlier versions
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used tables to look up the function to use, but
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- if the table contains both assembler and disassembler functions then
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the disassembler contains much of the assembler and vice-versa,
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- there's a lot of inlining possibilities as things grow,
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- using a switch statement avoids the function call overhead.
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This function could be moved into `print_insn_normal', but keeping it
218
separate makes clear the interface between `print_insn_normal' and each of
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xc16x_cgen_print_operand (CGEN_CPU_DESC cd,
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void const *attrs ATTRIBUTE_UNUSED,
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disassemble_info *info = (disassemble_info *) xinfo;
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case XC16X_OPERAND_REGNAM :
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print_keyword (cd, info, & xc16x_cgen_opval_psw_names, fields->f_reg8, 0);
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case XC16X_OPERAND_BIT01 :
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print_normal (cd, info, fields->f_op_1bit, 0, pc, length);
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case XC16X_OPERAND_BIT1 :
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print_normal (cd, info, fields->f_op_bit1, 0, pc, length);
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case XC16X_OPERAND_BIT2 :
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print_normal (cd, info, fields->f_op_bit2, 0, pc, length);
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case XC16X_OPERAND_BIT4 :
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print_normal (cd, info, fields->f_op_bit4, 0, pc, length);
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case XC16X_OPERAND_BIT8 :
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print_normal (cd, info, fields->f_op_bit8, 0, pc, length);
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case XC16X_OPERAND_BITONE :
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print_normal (cd, info, fields->f_op_onebit, 0, pc, length);
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case XC16X_OPERAND_CADDR :
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print_address (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
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case XC16X_OPERAND_COND :
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print_keyword (cd, info, & xc16x_cgen_opval_conditioncode_names, fields->f_condcode, 0);
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case XC16X_OPERAND_DATA8 :
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print_normal (cd, info, fields->f_data8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
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case XC16X_OPERAND_DATAHI8 :
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print_normal (cd, info, fields->f_datahi8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
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case XC16X_OPERAND_DOT :
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print_dot (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
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case XC16X_OPERAND_DR :
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print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r1, 0);
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case XC16X_OPERAND_DRB :
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print_keyword (cd, info, & xc16x_cgen_opval_grb_names, fields->f_r1, 0);
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case XC16X_OPERAND_DRI :
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print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r4, 0);
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case XC16X_OPERAND_EXTCOND :
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print_keyword (cd, info, & xc16x_cgen_opval_extconditioncode_names, fields->f_extccode, 0);
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case XC16X_OPERAND_GENREG :
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print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_regb8, 0);
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case XC16X_OPERAND_HASH :
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print_hash (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
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case XC16X_OPERAND_ICOND :
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print_keyword (cd, info, & xc16x_cgen_opval_conditioncode_names, fields->f_icondcode, 0);
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case XC16X_OPERAND_LBIT2 :
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print_normal (cd, info, fields->f_op_lbit2, 0, pc, length);
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case XC16X_OPERAND_LBIT4 :
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print_normal (cd, info, fields->f_op_lbit4, 0, pc, length);
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case XC16X_OPERAND_MASK8 :
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print_normal (cd, info, fields->f_mask8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
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case XC16X_OPERAND_MASKLO8 :
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print_normal (cd, info, fields->f_datahi8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
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case XC16X_OPERAND_MEMGR8 :
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print_keyword (cd, info, & xc16x_cgen_opval_memgr8_names, fields->f_memgr8, 0);
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case XC16X_OPERAND_MEMORY :
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print_address (cd, info, fields->f_memory, 0, pc, length);
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case XC16X_OPERAND_PAG :
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print_pag (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
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case XC16X_OPERAND_PAGENUM :
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print_normal (cd, info, fields->f_pagenum, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
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case XC16X_OPERAND_POF :
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print_pof (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
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case XC16X_OPERAND_QBIT :
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print_with_dot_prefix (cd, info, fields->f_qbit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
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case XC16X_OPERAND_QHIBIT :
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print_with_dot_prefix (cd, info, fields->f_qhibit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
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case XC16X_OPERAND_QLOBIT :
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print_with_dot_prefix (cd, info, fields->f_qlobit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
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case XC16X_OPERAND_REG8 :
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print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_reg8, 0);
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case XC16X_OPERAND_REGB8 :
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print_keyword (cd, info, & xc16x_cgen_opval_grb8_names, fields->f_regb8, 0);
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case XC16X_OPERAND_REGBMEM8 :
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print_keyword (cd, info, & xc16x_cgen_opval_regbmem8_names, fields->f_regmem8, 0);
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case XC16X_OPERAND_REGHI8 :
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print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_reghi8, 0);
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case XC16X_OPERAND_REGMEM8 :
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print_keyword (cd, info, & xc16x_cgen_opval_regmem8_names, fields->f_regmem8, 0);
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case XC16X_OPERAND_REGOFF8 :
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print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_regoff8, 0);
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case XC16X_OPERAND_REL :
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print_normal (cd, info, fields->f_rel8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
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case XC16X_OPERAND_RELHI :
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print_normal (cd, info, fields->f_relhi8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
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case XC16X_OPERAND_SEG :
352
print_normal (cd, info, fields->f_seg8, 0, pc, length);
354
case XC16X_OPERAND_SEGHI8 :
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print_normal (cd, info, fields->f_segnum8, 0, pc, length);
357
case XC16X_OPERAND_SEGM :
358
print_seg (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
360
case XC16X_OPERAND_SOF :
361
print_sof (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
363
case XC16X_OPERAND_SR :
364
print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r2, 0);
366
case XC16X_OPERAND_SR2 :
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print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r0, 0);
369
case XC16X_OPERAND_SRB :
370
print_keyword (cd, info, & xc16x_cgen_opval_grb_names, fields->f_r2, 0);
372
case XC16X_OPERAND_SRC1 :
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print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r1, 0);
375
case XC16X_OPERAND_SRC2 :
376
print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r2, 0);
378
case XC16X_OPERAND_SRDIV :
379
print_keyword (cd, info, & xc16x_cgen_opval_regdiv8_names, fields->f_reg8, 0);
381
case XC16X_OPERAND_U4 :
382
print_keyword (cd, info, & xc16x_cgen_opval_reg0_name, fields->f_uimm4, 0);
384
case XC16X_OPERAND_UIMM16 :
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print_normal (cd, info, fields->f_uimm16, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
387
case XC16X_OPERAND_UIMM2 :
388
print_keyword (cd, info, & xc16x_cgen_opval_ext_names, fields->f_uimm2, 0|(1<<CGEN_OPERAND_HASH_PREFIX));
390
case XC16X_OPERAND_UIMM3 :
391
print_keyword (cd, info, & xc16x_cgen_opval_reg0_name1, fields->f_uimm3, 0|(1<<CGEN_OPERAND_HASH_PREFIX));
393
case XC16X_OPERAND_UIMM4 :
394
print_normal (cd, info, fields->f_uimm4, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
396
case XC16X_OPERAND_UIMM7 :
397
print_normal (cd, info, fields->f_uimm7, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
399
case XC16X_OPERAND_UIMM8 :
400
print_normal (cd, info, fields->f_uimm8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
402
case XC16X_OPERAND_UPAG16 :
403
print_with_pag_prefix (cd, info, fields->f_uimm16, 0|(1<<CGEN_OPERAND_PAG_PREFIX), pc, length);
405
case XC16X_OPERAND_UPOF16 :
406
print_with_pof_prefix (cd, info, fields->f_memory, 0|(1<<CGEN_OPERAND_POF_PREFIX), pc, length);
408
case XC16X_OPERAND_USEG16 :
409
print_normal (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SEG_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
411
case XC16X_OPERAND_USEG8 :
412
print_normal (cd, info, fields->f_seg8, 0|(1<<CGEN_OPERAND_SEG_PREFIX), pc, length);
414
case XC16X_OPERAND_USOF16 :
415
print_normal (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SOF_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
419
/* xgettext:c-format */
420
fprintf (stderr, _("Unrecognized field %d while printing insn.\n"),
426
cgen_print_fn * const xc16x_cgen_print_handlers[] =
433
xc16x_cgen_init_dis (CGEN_CPU_DESC cd)
435
xc16x_cgen_init_opcode_table (cd);
436
xc16x_cgen_init_ibld_table (cd);
437
cd->print_handlers = & xc16x_cgen_print_handlers[0];
438
cd->print_operand = xc16x_cgen_print_operand;
442
/* Default print handler. */
445
print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
449
bfd_vma pc ATTRIBUTE_UNUSED,
450
int length ATTRIBUTE_UNUSED)
452
disassemble_info *info = (disassemble_info *) dis_info;
454
/* Print the operand as directed by the attributes. */
455
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
456
; /* nothing to do */
457
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
458
(*info->fprintf_func) (info->stream, "%ld", value);
460
(*info->fprintf_func) (info->stream, "0x%lx", value);
463
/* Default address handler. */
466
print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
470
bfd_vma pc ATTRIBUTE_UNUSED,
471
int length ATTRIBUTE_UNUSED)
473
disassemble_info *info = (disassemble_info *) dis_info;
475
/* Print the operand as directed by the attributes. */
476
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
477
; /* Nothing to do. */
478
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
479
(*info->print_address_func) (value, info);
480
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
481
(*info->print_address_func) (value, info);
482
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
483
(*info->fprintf_func) (info->stream, "%ld", (long) value);
485
(*info->fprintf_func) (info->stream, "0x%lx", (long) value);
488
/* Keyword print handler. */
491
print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
493
CGEN_KEYWORD *keyword_table,
495
unsigned int attrs ATTRIBUTE_UNUSED)
497
disassemble_info *info = (disassemble_info *) dis_info;
498
const CGEN_KEYWORD_ENTRY *ke;
500
ke = cgen_keyword_lookup_value (keyword_table, value);
502
(*info->fprintf_func) (info->stream, "%s", ke->name);
504
(*info->fprintf_func) (info->stream, "???");
507
/* Default insn printer.
509
DIS_INFO is defined as `void *' so the disassembler needn't know anything
510
about disassemble_info. */
513
print_insn_normal (CGEN_CPU_DESC cd,
515
const CGEN_INSN *insn,
520
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
521
disassemble_info *info = (disassemble_info *) dis_info;
522
const CGEN_SYNTAX_CHAR_TYPE *syn;
524
CGEN_INIT_PRINT (cd);
526
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
528
if (CGEN_SYNTAX_MNEMONIC_P (*syn))
530
(*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
533
if (CGEN_SYNTAX_CHAR_P (*syn))
535
(*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
539
/* We have an operand. */
540
xc16x_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
541
fields, CGEN_INSN_ATTRS (insn), pc, length);
545
/* Subroutine of print_insn. Reads an insn into the given buffers and updates
547
Returns 0 if all is well, non-zero otherwise. */
550
read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
552
disassemble_info *info,
555
CGEN_EXTRACT_INFO *ex_info,
556
unsigned long *insn_value)
558
int status = (*info->read_memory_func) (pc, buf, buflen, info);
562
(*info->memory_error_func) (status, pc, info);
566
ex_info->dis_info = info;
567
ex_info->valid = (1 << buflen) - 1;
568
ex_info->insn_bytes = buf;
570
*insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
574
/* Utility to print an insn.
575
BUF is the base part of the insn, target byte order, BUFLEN bytes long.
576
The result is the size of the insn in bytes or zero for an unknown insn
577
or -1 if an error occurs fetching data (memory_error_func will have
581
print_insn (CGEN_CPU_DESC cd,
583
disassemble_info *info,
587
CGEN_INSN_INT insn_value;
588
const CGEN_INSN_LIST *insn_list;
589
CGEN_EXTRACT_INFO ex_info;
592
/* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
593
basesize = cd->base_insn_bitsize < buflen * 8 ?
594
cd->base_insn_bitsize : buflen * 8;
595
insn_value = cgen_get_insn_value (cd, buf, basesize);
598
/* Fill in ex_info fields like read_insn would. Don't actually call
599
read_insn, since the incoming buffer is already read (and possibly
600
modified a la m32r). */
601
ex_info.valid = (1 << buflen) - 1;
602
ex_info.dis_info = info;
603
ex_info.insn_bytes = buf;
605
/* The instructions are stored in hash lists.
606
Pick the first one and keep trying until we find the right one. */
608
insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
609
while (insn_list != NULL)
611
const CGEN_INSN *insn = insn_list->insn;
614
unsigned long insn_value_cropped;
616
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
617
/* Not needed as insn shouldn't be in hash lists if not supported. */
618
/* Supported by this cpu? */
619
if (! xc16x_cgen_insn_supported (cd, insn))
621
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
626
/* Basic bit mask must be correct. */
627
/* ??? May wish to allow target to defer this check until the extract
630
/* Base size may exceed this instruction's size. Extract the
631
relevant part from the buffer. */
632
if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
633
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
634
insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
635
info->endian == BFD_ENDIAN_BIG);
637
insn_value_cropped = insn_value;
639
if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
640
== CGEN_INSN_BASE_VALUE (insn))
642
/* Printing is handled in two passes. The first pass parses the
643
machine insn and extracts the fields. The second pass prints
646
/* Make sure the entire insn is loaded into insn_value, if it
648
if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
649
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
651
unsigned long full_insn_value;
652
int rc = read_insn (cd, pc, info, buf,
653
CGEN_INSN_BITSIZE (insn) / 8,
654
& ex_info, & full_insn_value);
657
length = CGEN_EXTRACT_FN (cd, insn)
658
(cd, insn, &ex_info, full_insn_value, &fields, pc);
661
length = CGEN_EXTRACT_FN (cd, insn)
662
(cd, insn, &ex_info, insn_value_cropped, &fields, pc);
664
/* Length < 0 -> error. */
669
CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
670
/* Length is in bits, result is in bytes. */
675
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
681
/* Default value for CGEN_PRINT_INSN.
682
The result is the size of the insn in bytes or zero for an unknown insn
683
or -1 if an error occured fetching bytes. */
685
#ifndef CGEN_PRINT_INSN
686
#define CGEN_PRINT_INSN default_print_insn
690
default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
692
bfd_byte buf[CGEN_MAX_INSN_SIZE];
696
/* Attempt to read the base part of the insn. */
697
buflen = cd->base_insn_bitsize / 8;
698
status = (*info->read_memory_func) (pc, buf, buflen, info);
700
/* Try again with the minimum part, if min < base. */
701
if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
703
buflen = cd->min_insn_bitsize / 8;
704
status = (*info->read_memory_func) (pc, buf, buflen, info);
709
(*info->memory_error_func) (status, pc, info);
713
return print_insn (cd, pc, info, buf, buflen);
717
Print one instruction from PC on INFO->STREAM.
718
Return the size of the instruction (in bytes). */
720
typedef struct cpu_desc_list
722
struct cpu_desc_list *next;
730
print_insn_xc16x (bfd_vma pc, disassemble_info *info)
732
static cpu_desc_list *cd_list = 0;
733
cpu_desc_list *cl = 0;
734
static CGEN_CPU_DESC cd = 0;
735
static CGEN_BITSET *prev_isa;
736
static int prev_mach;
737
static int prev_endian;
741
int endian = (info->endian == BFD_ENDIAN_BIG
743
: CGEN_ENDIAN_LITTLE);
744
enum bfd_architecture arch;
746
/* ??? gdb will set mach but leave the architecture as "unknown" */
747
#ifndef CGEN_BFD_ARCH
748
#define CGEN_BFD_ARCH bfd_arch_xc16x
751
if (arch == bfd_arch_unknown)
752
arch = CGEN_BFD_ARCH;
754
/* There's no standard way to compute the machine or isa number
755
so we leave it to the target. */
756
#ifdef CGEN_COMPUTE_MACH
757
mach = CGEN_COMPUTE_MACH (info);
762
#ifdef CGEN_COMPUTE_ISA
764
static CGEN_BITSET *permanent_isa;
767
permanent_isa = cgen_bitset_create (MAX_ISAS);
769
cgen_bitset_clear (isa);
770
cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
773
isa = info->insn_sets;
776
/* If we've switched cpu's, try to find a handle we've used before */
778
&& (cgen_bitset_compare (isa, prev_isa) != 0
780
|| endian != prev_endian))
783
for (cl = cd_list; cl; cl = cl->next)
785
if (cgen_bitset_compare (cl->isa, isa) == 0 &&
787
cl->endian == endian)
796
/* If we haven't initialized yet, initialize the opcode table. */
799
const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
800
const char *mach_name;
804
mach_name = arch_type->printable_name;
806
prev_isa = cgen_bitset_copy (isa);
808
prev_endian = endian;
809
cd = xc16x_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
810
CGEN_CPU_OPEN_BFDMACH, mach_name,
811
CGEN_CPU_OPEN_ENDIAN, prev_endian,
816
/* Save this away for future reference. */
817
cl = xmalloc (sizeof (struct cpu_desc_list));
825
xc16x_cgen_init_dis (cd);
828
/* We try to have as much common code as possible.
829
But at this point some targets need to take over. */
830
/* ??? Some targets may need a hook elsewhere. Try to avoid this,
831
but if not possible try to move this hook elsewhere rather than
833
length = CGEN_PRINT_INSN (cd, pc, info);
839
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
840
return cd->default_insn_bitsize / 8;