TIc80 simulator checkpoint - runs 3 instructions - trap, addu, br.a.

1 files changed, 165 insertions, 0 deletions

diff --git a/sim/igen/gen-support.c b/sim/igen/gen-support.c
new file mode 100644
index 0000000..d73a0de
--- /dev/null
+++ b/sim/igen/gen-support.c
@@ -0,0 +1,165 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1997, 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 "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_function(file, print_semantic_function_type, "INLINE_SUPPORT",
+				    (is_function_definition ? "\n" : " "));
+    print_function_name(file,
+			function->fields[function_name],
+			NULL,
+			function_name_prefix_semantics);
+    lf_printf(file, "\n(");
+    print_semantic_function_formal(file);
+    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(global_name_prefix, "") != 0) {
+      lf_indent_suppress(file);
+      lf_printf(file, "#define %s %s%s\n",
+		function->fields[function_name],
+		global_name_prefix,
+		function->fields[function_name]);
+    }
+    lf_print_function_type(file,
+			   function->fields[function_type],
+			   "INLINE_SUPPORT",
+			   (is_function_definition ? "\n" : " "));
+    lf_printf(file, "%s%s\n(",
+	      global_name_prefix,
+	      function->fields[function_name]);
+    if (generate_smp)
+      lf_printf(file, "sim_cpu *cpu");
+    else
+      lf_printf(file, "SIM_DESC sd");
+    if (strcmp(function->fields[function_param], "") != 0)
+      lf_printf(file, ", %s", function->fields[function_param]);
+    lf_printf(file, ")%s", (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 the definition of `_SD'*/
+  if (generate_smp) {
+    lf_printf(file, "#define _SD cpu\n");
+    lf_printf(file, "#define SD cpu->sd\n");
+    lf_printf(file, "#define CPU cpu\n");
+  }
+  else {
+    lf_printf(file, "#define _SD sd\n");
+    lf_printf(file, "#define SD sd\n");
+    lf_printf(file, "#define CPU (&sd->cpu)\n");
+  }
+  lf_printf(file, "\n");
+  /* output a declaration for all functions */
+  insn_table_traverse_function(table,
+			       file, NULL,
+			       support_h_function);
+  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", global_name_prefix);
+  lf_printf(file, "# endif\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, "sim_io_error (sd, \"Internal function must longjump\\n\");\n");
+      lf_printf (file, "memset (&cia, 0, sizeof cia);\n");
+      lf_printf (file, "return cia;\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 \"sim-main.h\"\n");
+  lf_printf(file, "#include \"%sidecode.h\"\n", global_name_prefix);
+  lf_printf(file, "#include \"%ssupport.h\"\n", global_name_prefix);
+  lf_printf(file, "\n");
+
+  /* output a definition (c-code) for all functions */
+  insn_table_traverse_function(table,
+			       file, NULL,
+			       support_c_function);
+}