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-rw-r--r--sim/igen/gen-support.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/sim/igen/gen-support.c b/sim/igen/gen-support.c
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+++ b/sim/igen/gen-support.c
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+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au>
+
+ 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 "igen.h"
+
+#include "ld-insn.h"
+#include "ld-decode.h"
+
+#include "gen.h"
+
+#include "gen-semantics.h"
+#include "gen-support.h"
+
+static void
+print_support_function_name (lf *file,
+ function_entry *function,
+ int is_function_definition)
+{
+ if (function->is_internal)
+ {
+ lf_print__function_type_function (file, print_semantic_function_type,
+ "INLINE_SUPPORT",
+ (is_function_definition ? "\n" : " "));
+ print_function_name (file,
+ function->name,
+ NULL,
+ NULL,
+ NULL,
+ function_name_prefix_semantics);
+ lf_printf (file, "\n(");
+ lf_indent (file, +1);
+ print_semantic_function_formal (file, 0);
+ lf_indent (file, -1);
+ lf_printf (file, ")");
+ if (!is_function_definition)
+ lf_printf (file, ";");
+ lf_printf (file, "\n");
+ }
+ else
+ {
+ /* map the name onto a globally valid name */
+ if (!is_function_definition
+ && strcmp (options.module.support.prefix.l, "") != 0)
+ {
+ lf_indent_suppress (file);
+ lf_printf (file, "#define %s %s%s\n",
+ function->name,
+ options.module.support.prefix.l,
+ function->name);
+ }
+ lf_print__function_type (file,
+ function->type,
+ "INLINE_SUPPORT",
+ (is_function_definition ? "\n" : " "));
+ lf_printf (file, "%s%s\n(",
+ options.module.support.prefix.l,
+ function->name);
+ if (options.gen.smp)
+ lf_printf (file,
+ "sim_cpu *cpu, %sinstruction_address cia, int MY_INDEX",
+ options.module.support.prefix.l);
+ else
+ lf_printf (file,
+ "SIM_DESC sd, %sinstruction_address cia, int MY_INDEX",
+ options.module.support.prefix.l);
+ if (function->param != NULL
+ && strlen (function->param) > 0)
+ lf_printf (file, ", %s", function->param);
+ lf_printf (file, ")%s", (is_function_definition ? "\n" : ";\n"));
+ }
+}
+
+
+static void
+support_h_function (lf *file,
+ function_entry *function,
+ void *data)
+{
+ ASSERT (function->type != NULL);
+ print_support_function_name (file,
+ function,
+ 0/*!is_definition*/);
+ lf_printf(file, "\n");
+}
+
+
+extern void
+gen_support_h (lf *file,
+ insn_table *table)
+{
+ /* output the definition of `SD_'*/
+ if (options.gen.smp)
+ {
+ lf_printf(file, "#define SD CPU_STATE (cpu)\n");
+ lf_printf(file, "#define CPU cpu\n");
+ lf_printf(file, "#define CPU_ cpu\n");
+ }
+ else
+ {
+ lf_printf(file, "#define SD sd\n");
+ lf_printf(file, "#define CPU (STATE_CPU (sd, 0))\n");
+ lf_printf(file, "#define CPU_ sd\n");
+ }
+
+ lf_printf(file, "#define CIA_ cia\n");
+ if (options.gen.delayed_branch)
+ {
+ lf_printf(file, "#define CIA cia.ip\n");
+ lf_printf(file, "/* #define NIA nia.dp -- do not define, ambigious */\n");
+ }
+ else
+ {
+ lf_printf(file, "#define CIA cia\n");
+ lf_printf(file, "#define NIA nia\n");
+ }
+ lf_printf(file, "\n");
+
+ lf_printf(file, "#define SD_ CPU_, CIA_, MY_INDEX\n");
+ lf_printf(file, "#define _SD SD_ /* deprecated */\n");
+ lf_printf(file, "\n");
+
+ /* Map <PREFIX>_instruction_word and <PREFIX>_idecode_issue onto the
+ shorter instruction_word and idecode_issue. Map defined here as,
+ name space problems are created when the name is defined in
+ idecode.h */
+ if (strcmp (options.module.idecode.prefix.l, "") != 0)
+ {
+ lf_indent_suppress (file);
+ lf_printf (file, "#define %s %s%s\n",
+ "instruction_word",
+ options.module.idecode.prefix.l,
+ "instruction_word");
+ lf_printf (file, "\n");
+ lf_indent_suppress (file);
+ lf_printf (file, "#define %s %s%s\n",
+ "idecode_issue",
+ options.module.idecode.prefix.l,
+ "idecode_issue");
+ lf_printf (file, "\n");
+ }
+
+ /* output a declaration for all functions */
+ function_entry_traverse (file, table->functions,
+ support_h_function,
+ NULL);
+ lf_printf(file, "\n");
+ lf_printf(file, "#if defined(SUPPORT_INLINE)\n");
+ lf_printf(file, "# if ((SUPPORT_INLINE & INCLUDE_MODULE)\\\n");
+ lf_printf(file, " && (SUPPORT_INLINE & INCLUDED_BY_MODULE))\n");
+ lf_printf(file, "# include \"%ssupport.c\"\n", options.module.support.prefix.l);
+ lf_printf(file, "# endif\n");
+ lf_printf(file, "#endif\n");
+}
+
+static void
+support_c_function (lf *file,
+ function_entry *function,
+ void *data)
+{
+ ASSERT (function->type != NULL);
+ print_support_function_name (file,
+ function,
+ 1/*!is_definition*/);
+ lf_printf (file, "{\n");
+ lf_indent (file, +2);
+ if (function->code == NULL)
+ error (function->line,
+ "Function without body (or null statement)");
+ lf_print__line_ref (file, function->code->line);
+ table_print_code (file, function->code);
+ if (function->is_internal)
+ {
+ lf_printf (file, "sim_engine_abort (SD, CPU, cia, \"Internal function must longjump\\n\");\n");
+ lf_printf (file, "return cia;\n");
+ }
+ lf_indent (file, -2);
+ lf_printf (file, "}\n");
+ lf_print__internal_ref (file);
+ lf_printf (file, "\n");
+}
+
+
+void
+gen_support_c (lf *file,
+ insn_table *table)
+{
+ lf_printf(file, "#include \"sim-main.h\"\n");
+ lf_printf(file, "#include \"%sidecode.h\"\n", options.module.idecode.prefix.l);
+ lf_printf(file, "#include \"%sitable.h\"\n", options.module.itable.prefix.l);
+ lf_printf(file, "#include \"%ssupport.h\"\n", options.module.support.prefix.l);
+ lf_printf(file, "\n");
+
+ /* output a definition (c-code) for all functions */
+ function_entry_traverse (file, table->functions,
+ support_c_function,
+ NULL);
+}
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