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

1 files changed, 107 insertions, 0 deletions

diff --git a/sim/tic80/sim-main.h b/sim/tic80/sim-main.h
new file mode 100644
index 0000000..2f726f6
--- /dev/null
+++ b/sim/tic80/sim-main.h
@@ -0,0 +1,107 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
+    Copyright (C) 1997, Free Software Foundation
+
+    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.
+ 
+    */
+
+
+#ifndef _SIM_MAIN_H_
+#define _SIM_MAIN_H_
+
+#include "sim-basics.h"
+#include "sim-inline.h"
+#include "sim-types.h"
+#include "sim-bits.h"
+#include "sim-endian.h"
+
+/* These are generated files.  */
+#include "itable.h"
+#include "idecode.h"
+#include "idecode.h"
+
+#include "cpu.h"
+#include "alu.h"
+
+#include "sim-core.h"
+#include "sim-events.h"
+#include "sim-io.h"
+
+
+struct sim_state {
+
+  /* real time */
+  sim_events events;
+
+  /* memory and IO */
+  sim_core core;
+
+  /* escape route for inner functions */
+  int halt_ok;
+  jmp_buf path_to_halt;
+  int restart_ok;
+  jmp_buf path_to_restart;
+
+  /* status from last halt */
+  enum sim_stop reason;
+  int siggnal;
+
+  /* the processors proper */
+  sim_cpu cpu;
+#define STATE_CPU(sd, n) (&(sd)->cpu)
+
+  /* The base class.  */
+  sim_state_base base;
+
+};
+
+/* (re) initialize the simulator */
+
+extern void engine_init
+(SIM_DESC sd);
+
+
+/* Mechanisms for stopping/restarting the simulation */
+
+extern void engine_error
+(SIM_DESC sd,
+ instruction_address cia,
+ const char *fmt,
+ ...);
+
+extern void engine_halt
+(SIM_DESC sd,
+ instruction_address cia,
+ enum sim_stop reason,
+ int siggnal);
+
+extern void engine_restart
+(SIM_DESC sd,
+ instruction_address cia);
+
+
+
+
+/* SIMULATE INSTRUCTIONS, various different ways of achieving the same
+   thing (others later) */
+
+extern void engine_run_until_stop
+(SIM_DESC sd,
+ volatile int *keep_running);
+
+
+#endif