Subversion Repositories openrisc_2011-10-31

/*  This file is part of the program psim.

    Copyright 1994, 1995, 2003 Andrew Cagney

    This program 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 2 of the License, or

    (at your option) any later version.

    This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    */

#include "misc.h"

#include "lf.h"

#include "table.h"

#include "filter.h"

#include "ld-decode.h"

#include "ld-cache.h"

#include "ld-insn.h"

#include "igen.h"

#include "gen-semantics.h"

#include "gen-support.h"

static void

print_support_function_name(lf *file,

                            table_entry *function,

                            int is_function_definition)

{

  if (it_is("internal", function->fields[insn_flags])) {

    lf_print_function_type(file, SEMANTIC_FUNCTION_TYPE, "PSIM_INLINE_SUPPORT",

                           (is_function_definition ? "\n" : " "));

    print_function_name(file,

                        function->fields[function_name],

                        NULL,

                        function_name_prefix_semantics);

    lf_printf(file, "\n(%s)", SEMANTIC_FUNCTION_FORMAL);

    if (!is_function_definition)

      lf_printf(file, ";");

    lf_printf(file, "\n");

  }

  else {

    lf_print_function_type(file,

                           function->fields[function_type],

                           "PSIM_INLINE_SUPPORT",

                           (is_function_definition ? "\n" : " "));

    lf_printf(file, "%s\n(%s)%s",

              function->fields[function_name],

              function->fields[function_param],

              (is_function_definition ? "\n" : ";\n"));

  }

}

static void

support_h_function(insn_table *entry,

                   lf *file,

                   void *data,

                   table_entry *function)

{

  ASSERT(function->fields[function_type] != NULL);

  ASSERT(function->fields[function_param] != NULL);

  print_support_function_name(file,

                              function,

                              0/*!is_definition*/);

  lf_printf(file, "\n");

}

extern void

gen_support_h(insn_table *table,

              lf *file)

{

  /* output a declaration for all functions */

  insn_table_traverse_function(table,

                               file, NULL,

                               support_h_function);

  lf_printf(file, "\n");

  lf_printf(file, "#if (SUPPORT_INLINE & INCLUDE_MODULE)\n");

  lf_printf(file, "# include \"support.c\"\n");

  lf_printf(file, "#endif\n");

}

static void

support_c_function(insn_table *table,

                   lf *file,

                   void *data,

                   table_entry *function)

{

  ASSERT(function->fields[function_type] != NULL);

  print_support_function_name(file,

                              function,

                              1/*!is_definition*/);

  table_entry_print_cpp_line_nr(file, function);

  lf_printf(file, "{\n");

  lf_indent(file, +2);

  lf_print__c_code(file, function->annex);

  if (it_is("internal", function->fields[insn_flags])) {

    lf_printf(file, "error(\"Internal function must longjump\\n\");\n");

    lf_printf(file, "return 0;\n");

  }

  lf_indent(file, -2);

  lf_printf(file, "}\n");

  lf_print__internal_reference(file);

  lf_printf(file, "\n");

}

void

gen_support_c(insn_table *table,

              lf *file)

{

  lf_printf(file, "#include \"cpu.h\"\n");

  lf_printf(file, "#include \"idecode.h\"\n");

  lf_printf(file, "#ifdef HAVE_COMMON_FPU\n");

  lf_printf(file, "#include \"sim-inline.h\"\n");

  lf_printf(file, "#include \"sim-fpu.h\"\n");

  lf_printf(file, "#endif\n");

  lf_printf(file, "#include \"support.h\"\n");

  lf_printf(file, "\n");

  /* output a definition (c-code) for all functions */

  insn_table_traverse_function(table,

                               file, NULL,

                               support_c_function);

}