import gdb-19990422 snapshot

4 files changed, 46 insertions, 2 deletions

diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog
index 73b8c92..2c0297a 100644
--- a/sim/d10v/ChangeLog
+++ b/sim/d10v/ChangeLog
@@ -1,3 +1,24 @@
+1999-04-02  Keith Seitz  <keiths@cygnus.com>
+
+	* interp.c (ui_loop_hook_counter): New global (when NEED_UI_LOOP_HOOK
+	defined).
+	(sim_resume): If the counter has expired, call the ui_loop_hook,
+	if defined.
+	(UI_LOOP_POLL_INTERVAL): Define. Used to tweak the frequency of
+	ui_loop_hook calls.
+	* Makefile.in (SIM_EXTRA_CFLAGS): Include NEED_UI_LOOP_HOOK.
+
+Wed Mar 10 19:32:13 1999  Nick Clifton  <nickc@cygnus.com>
+
+	* simops.c: If load instruction with auto increment/decrement
+	addressing is used when the destination register is the same as
+	the address register, then ignore the auto increment/decrement.
+
+Wed Mar 10 19:32:13 1999  Martin M. Hunt  <hunt@cygnus.com>
+
+	* simops.c (OP_5F00): Ifdef SYS_stat case because
+	not all systems have it defined.
+
 1999-01-26  Jason Molenda  (jsm@bugshack.cygnus.com)
 
 	* simops.c (OP_5607): Correct saturation comparison/assignment.
diff --git a/sim/d10v/Makefile.in b/sim/d10v/Makefile.in
index 0732327..602ffff 100644
--- a/sim/d10v/Makefile.in
+++ b/sim/d10v/Makefile.in
@@ -20,6 +20,7 @@
 
 SIM_OBJS = interp.o table.o simops.o endian.o sim-load.o
 SIM_EXTRA_CLEAN = clean-extra
+SIM_EXTRA_CFLAGS = -DNEED_UI_LOOP_HOOK
 
 INCLUDE = d10v_sim.h $(srcroot)/include/callback.h targ-vals.h endian.c
 
diff --git a/sim/d10v/interp.c b/sim/d10v/interp.c
index 17c964f..4602ed2 100644
--- a/sim/d10v/interp.c
+++ b/sim/d10v/interp.c
@@ -39,6 +39,17 @@ static char *add_commas PARAMS ((char *buf, int sizeof_buf, unsigned long value)
 extern void sim_set_profile PARAMS ((int n));
 extern void sim_set_profile_size PARAMS ((int n));
 
+#ifdef NEED_UI_LOOP_HOOK
+/* How often to run the ui_loop update, when in use */
+#define UI_LOOP_POLL_INTERVAL 0x14000
+
+/* Counter for the ui_loop_hook update */
+static long ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL;
+
+/* Actual hook to call to run through gdb's gui event loop */
+extern int (*ui_loop_hook) PARAMS ((int signo));
+#endif /* NEED_UI_LOOP_HOOK */
+
 #ifndef INLINE
 #if defined(__GNUC__) && defined(__OPTIMIZE__)
 #define INLINE __inline__
@@ -784,6 +795,13 @@ sim_resume (sd, step, siggnal)
       /* Writeback all the DATA / PC changes */
       SLOT_FLUSH ();
 
+#ifdef NEED_UI_LOOP_HOOK
+      if (ui_loop_hook != NULL && ui_loop_hook_counter-- < 0)
+	{
+	  ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL;
+	  ui_loop_hook (0);
+	}
+#endif /* NEED_UI_LOOP_HOOK */
     }
   while ( !State.exception && !stop_simulator);
   
diff --git a/sim/d10v/simops.c b/sim/d10v/simops.c
index c64ba42..0614c9f 100644
--- a/sim/d10v/simops.c
+++ b/sim/d10v/simops.c
@@ -1333,7 +1333,8 @@ OP_6601 ()
   trace_input ("ld2w", OP_REG_OUTPUT, OP_POSTDEC, OP_VOID);
   tmp = RLW (addr);
   SET_GPR32 (OP[0], tmp);
-  INC_ADDR (OP[1], -4);
+  if (OP[0] != OP[1])
+    INC_ADDR (OP[1], -4);
   trace_output_32 (tmp);
 }
 
@@ -1346,7 +1347,8 @@ OP_6201 ()
   trace_input ("ld2w", OP_REG_OUTPUT, OP_POSTINC, OP_VOID);
   tmp = RLW (addr);
   SET_GPR32 (OP[0], tmp);
-  INC_ADDR (OP[1], 4);
+  if (OP[0] != OP[1])
+    INC_ADDR (OP[1], 4);
   trace_output_32 (tmp);
 }
 
@@ -3124,6 +3126,7 @@ OP_5F00 ()
 	    trace_output_void ();
 	    break;
 
+#ifdef TARGET_SYS_stat
 	  case TARGET_SYS_stat:
 	    trace_input ("<stat>", OP_R0, OP_R1, OP_VOID);
 	    /* stat system call */
@@ -3152,6 +3155,7 @@ OP_5F00 ()
 	    }
 	    trace_output_16 (result);
 	    break;
+#endif
 
 	  case TARGET_SYS_chown:
 	    trace_input ("<chown>", OP_R0, OP_R1, OP_R2);