--- freem/src/mdebug.h	2025/03/09 15:20:18	1.2
+++ freem/src/mdebug.h	2025/04/30 14:41:03	1.5
@@ -1,23 +1,11 @@
 /*
- *                            *
- *                           * *
- *                          *   *
- *                     ***************
- *                      * *       * *
- *                       *  MUMPS  *
- *                      * *       * *
- *                     ***************
- *                          *   *
- *                           * *
- *                            *
- *
- *   mdebug.h
+ *   $Id: mdebug.h,v 1.5 2025/04/30 14:41:03 snw Exp $
  *    debugger enhancements
  *
  *  
  *   Author: Serena Willis <snw@coherent-logic.com>
  *    Copyright (C) 1998 MUG Deutschland
- *    Copyright (C) 2020 Coherent Logic Development LLC
+ *    Copyright (C) 2020, 2025 Coherent Logic Development LLC
  *
  *
  *   This file is part of FreeM.
@@ -35,6 +23,19 @@
  *   You should have received a copy of the GNU Affero Public License
  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
  *
+ *   $Log: mdebug.h,v $
+ *   Revision 1.5  2025/04/30 14:41:03  snw
+ *   Further debugger work
+ *
+ *   Revision 1.4  2025/04/29 18:46:17  snw
+ *   Begin work on interactive debugger
+ *
+ *   Revision 1.3  2025/03/09 19:50:47  snw
+ *   Second phase of REUSE compliance and header reformat
+ *
+ *
+ * SPDX-FileCopyrightText:  (C) 2025 Coherent Logic Development LLC
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  **/
 
 #if !defined(_MDEBUG_H)
@@ -42,6 +43,17 @@
 
 #define MAXWATCH 100
 
+#define DEBENTRY_CMD 0
+#define DEBENTRY_LINE 1
+#define DEBENTRY_BREAKPOINT 2
+#define DEBENTRY_ERROR 4
+#define DEBENTRY_SIGINT 5
+
+#define STEPMODE_NONE 0
+#define STEPMODE_CONT 1
+#define STEPMODE_CMD 2
+#define STEPMODE_LINE 3
+
 typedef struct dbg_watch {
     
 	/* name of variable to watch */
@@ -57,6 +69,7 @@ typedef struct dbg_watch {
 } dbg_watch;
 
 extern void dbg_init (void);
+extern int debugger (int entry_mode, char *curcode);
 extern dbg_watch *dbg_add_watch (char *varnam);
 extern void dbg_remove_watch (char *varnam);
 extern dbg_watch *dbg_find_watch (char *varnam);
@@ -69,4 +82,4 @@ extern void dbg_dump_watchlist (void);
 extern short dbg_enable_watch;               /* 0 = watches disabled, 1 = watches enabled */
 extern int dbg_pending_watches;
 
-#endif
\ No newline at end of file
+#endif