Mon Dec 9 00:14:49 1996 Geoffrey Noer <noer@cygnus.com>

        * config/mn10300/tm-mn10300.h: fix register names
        * mn10300-tdep.c: new skeleton tdep for mn10300

3 files changed, 161 insertions, 25 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 3cddbd2..bf5ea17 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+Mon Dec  9 00:14:49 1996  Geoffrey Noer  <noer@cygnus.com>
+
+	* config/mn10300/tm-mn10300.h: fix register names
+	* mn10300-tdep.c: new skeleton tdep for mn10300
+
 Sun Dec  8 18:02:57 1996  Doug Evans  <dje@canuck.cygnus.com>
 
 	* remote-sim.h: Update some comments.
diff --git a/gdb/config/mn10300/tm-mn10300.h b/gdb/config/mn10300/tm-mn10300.h
index 5b859bb..846483d 100644
--- a/gdb/config/mn10300/tm-mn10300.h
+++ b/gdb/config/mn10300/tm-mn10300.h
@@ -22,34 +22,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #define TARGET_BYTE_ORDER LITTLE_ENDIAN
 
-#define NUM_REGS 65
-
-#define REGISTER_NAMES \
-{ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7", \
-  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
-  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \
-  "r24", "r25", "r26", "r27", "r28", "fp", "ep", "r31", \
-    \
-  "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", \
-  "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", \
-  "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", \
-  "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", \
-  "pc" }
-
 #define REGISTER_BYTES (NUM_REGS * 4)
 
 #define REGISTER_SIZE 4
 #define MAX_REGISTER_RAW_SIZE 4
 
-#define SP_REGNUM 3
-#define ARG0_REGNUM 6
-#define ARGLAST_REGNUM 9
-#define V0_REGNUM 10
-#define V1_REGNUM 11
-#define FP_REGNUM 29
-#define RP_REGNUM 31
-#define PS_REGNUM 37
-#define PC_REGNUM 64
+#define NUM_REGS 14
+
+#define REGISTER_NAMES \
+{ "d0", "d1", "d2", "d3", "a0", "a1", "a2", "a3", \
+  "sp", "pc", "mdr", "psw", "lir", "lar"}
+
+#define SP_REGNUM 8
+#define PC_REGNUM 9
+#define MDR_REGNUM 10
+#define PSW_REGNUM 11
+#define LIR_REGNUM 12
+#define LAR_REGNUM 13
 
 #define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
 
@@ -124,7 +113,6 @@ extern void mn10300_pop_frame PARAMS ((struct frame_info *frame));
 extern CORE_ADDR mn10300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
 #define PUSH_RETURN_ADDRESS(PC, SP)  mn10300_push_return_address (PC, SP)
 
-
 #define PUSH_DUMMY_FRAME	generic_push_dummy_frame ()
 
 extern CORE_ADDR
@@ -136,7 +124,6 @@ mn10300_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
 
 #define STORE_STRUCT_RETURN(STRUCT_ADDR, SP)
 
-
 #define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
 
 #define USE_STRUCT_CONVENTION(GCC_P, TYPE) \
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
new file mode 100644
index 0000000..6fb0be8
--- /dev/null
+++ b/gdb/mn10300-tdep.c
@@ -0,0 +1,144 @@
+/* Target-dependent code for the NEC MN10300 for GDB, the GNU debugger.
+   Copyright 1996, Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+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. */
+
+/* Contributed by Geoffrey Noer, noer@cygnus.com */
+
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "obstack.h"
+#include "target.h"
+#include "value.h"
+#include "bfd.h"
+#include "gdb_string.h"
+#include "gdbcore.h"
+#include "symfile.h"
+
+/* Info gleaned from scanning a function's prologue.  */
+
+struct pifsr			/* Info about one saved reg */
+{
+  int framereg;			/* Frame reg (SP or FP) */
+  int offset;			/* Offset from framereg */
+  int reg;			/* Saved register number */
+};
+
+struct prologue_info
+{
+  int framereg;
+  int frameoffset;
+  int start_function;
+  struct pifsr *pifsrs;
+};
+
+static CORE_ADDR
+mn10300_scan_prologue (pc, pi)
+     CORE_ADDR pc;
+     struct prologue_info *pi;
+{
+}
+
+void
+mn10300_init_extra_frame_info (fi)
+     struct frame_info *fi;
+{
+}
+
+CORE_ADDR
+mn10300_frame_chain (fi)
+     struct frame_info *fi;
+{
+}
+
+CORE_ADDR
+mn10300_find_callers_reg (fi, regnum)
+     struct frame_info *fi;
+     int regnum;
+{
+}
+
+CORE_ADDR
+mn10300_skip_prologue (pc)
+     CORE_ADDR pc;
+{
+}
+
+/* Function: pop_frame
+   This routine gets called when either the user uses the `return'
+   command, or the call dummy breakpoint gets hit.  */
+
+void
+mn10300_pop_frame (frame)
+     struct frame_info *frame;
+{
+}
+
+CORE_ADDR
+mn10300_push_arguments (nargs, args, sp, struct_return, struct_addr)
+     int nargs;
+     value_ptr *args;
+     CORE_ADDR sp;
+     unsigned char struct_return;
+     CORE_ADDR struct_addr;
+{
+}
+
+CORE_ADDR
+mn10300_push_return_address (pc, sp)
+     CORE_ADDR pc;
+     CORE_ADDR sp;
+{
+}
+ 
+CORE_ADDR
+mn10300_frame_saved_pc (fi)
+     struct frame_info *fi;
+{
+}
+
+void
+get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
+     char *raw_buffer;
+     int *optimized;
+     CORE_ADDR *addrp;
+     struct frame_info *frame;
+     int regnum;
+     enum lval_type *lval;
+{
+  generic_get_saved_register (raw_buffer, optimized, addrp, 
+			      frame, regnum, lval);
+}
+
+int
+mn10300_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p)
+     char *dummy;
+     CORE_ADDR sp;
+     CORE_ADDR fun;
+     int nargs;
+     value_ptr *args;
+     struct type *type;
+     int gcc_p;
+{
+}
+
+void
+_initialize_mn10300_tdep ()
+{
+  tm_print_insn = print_insn_mn10300;
+}