291 lines
7.6 KiB
Text
291 lines
7.6 KiB
Text
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/* XC16X opcode support. -*- C -*-
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Copyright 2006, 2007, 2009 Free Software Foundation, Inc.
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Contributed by KPIT Cummins Infosystems Ltd.; developed under contract
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from Infineon Systems, GMBH , Germany.
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This file is part of the GNU Binutils.
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This program 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 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public 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
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Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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/* This file is an addendum to xc16x.cpu. Heavy use of C code isn't
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appropriate in .cpu files, so it resides here. This especially applies
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to assembly/disassembly where parsing/printing can be quite involved.
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Such things aren't really part of the specification of the cpu, per se,
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so .cpu files provide the general framework and .opc files handle the
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nitty-gritty details as necessary.
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Each section is delimited with start and end markers.
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<arch>-opc.h additions use: "-- opc.h"
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<arch>-opc.c additions use: "-- opc.c"
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<arch>-asm.c additions use: "-- asm.c"
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<arch>-dis.c additions use: "-- dis.c"
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<arch>-ibd.h additions use: "-- ibd.h" */
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/* -- opc.h */
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#define CGEN_DIS_HASH_SIZE 8
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#define CGEN_DIS_HASH(buf,value) (((* (unsigned char*) (buf)) >> 3) % CGEN_DIS_HASH_SIZE)
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/* -- */
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/* -- opc.c */
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/* -- */
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/* -- asm.c */
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/* Handle '#' prefixes (i.e. skip over them). */
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static const char *
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parse_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (**strp == '#')
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{
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++*strp;
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return NULL;
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}
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return _("Missing '#' prefix");
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}
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/* Handle '.' prefixes (i.e. skip over them). */
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static const char *
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parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (**strp == '.')
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{
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++*strp;
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return NULL;
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}
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return _("Missing '.' prefix");
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}
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/* Handle 'pof:' prefixes (i.e. skip over them). */
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static const char *
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parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (strncasecmp (*strp, "pof:", 4) == 0)
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{
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*strp += 4;
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return NULL;
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}
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return _("Missing 'pof:' prefix");
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}
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/* Handle 'pag:' prefixes (i.e. skip over them). */
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static const char *
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parse_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (strncasecmp (*strp, "pag:", 4) == 0)
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{
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*strp += 4;
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return NULL;
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}
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return _("Missing 'pag:' prefix");
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}
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/* Handle 'sof' prefixes (i.e. skip over them). */
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static const char *
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parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (strncasecmp (*strp, "sof:", 4) == 0)
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{
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*strp += 4;
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return NULL;
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}
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return _("Missing 'sof:' prefix");
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}
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/* Handle 'seg' prefixes (i.e. skip over them). */
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static const char *
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parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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const char **strp,
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int opindex ATTRIBUTE_UNUSED,
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long *valuep ATTRIBUTE_UNUSED)
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{
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if (strncasecmp (*strp, "seg:", 4) == 0)
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{
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*strp += 4;
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return NULL;
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}
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return _("Missing 'seg:' prefix");
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}
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/* -- */
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/* -- dis.c */
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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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static void
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print_with_dot_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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long value,
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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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{
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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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}
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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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static void
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print_with_pof_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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bfd_vma value,
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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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{
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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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}
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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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static void
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print_with_pag_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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long value,
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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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{
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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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}
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/* Print a 'pof:' prefix to an operand. */
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static void
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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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{
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}
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/* Print a 'pag:' prefix to an operand. */
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static void
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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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{
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}
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/* Print a 'sof:' prefix to an operand. */
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static void
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print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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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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{
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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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}
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/* Print a 'seg:' prefix to an operand. */
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static void
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print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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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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{
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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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}
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/* Print a '#' prefix to an operand. */
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static void
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print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
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void * dis_info,
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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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{
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disassemble_info *info = (disassemble_info *) dis_info;
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info->fprintf_func (info->stream, "#");
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}
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/* Print a '.' prefix to an operand. */
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static void
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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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{
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}
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/* -- */
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