Initial creation of sourceware repository

1 files changed, 0 insertions, 919 deletions

diff --git a/gdb/mn10200-tdep.c b/gdb/mn10200-tdep.c
deleted file mode 100644
index cb7ead0..0000000
--- a/gdb/mn10200-tdep.c
+++ /dev/null
@@ -1,919 +0,0 @@
-/* Target-dependent code for the Matsushita MN10200 for GDB, the GNU debugger.
-   Copyright 1997 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.  */
-
-#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"
-
-  	
-/* Should call_function allocate stack space for a struct return?  */
-int
-mn10200_use_struct_convention (gcc_p, type)
-     int gcc_p;
-     struct type *type;
-{
-  return (TYPE_NFIELDS (type) > 1 || TYPE_LENGTH (type) > 8);
-}
-
-
-
-/* The main purpose of this file is dealing with prologues to extract
-   information about stack frames and saved registers.
-
-   For reference here's how prologues look on the mn10200:
-
-     With frame pointer:
-	mov fp,a0
-	mov sp,fp
-	add <size>,sp
-	Register saves for d2, d3, a1, a2 as needed.  Saves start
-	at fp - <size> + <outgoing_args_size> and work towards higher
-	addresses.  Note that the saves are actually done off the stack
-	pointer in the prologue!  This makes for smaller code and easier
-	prologue scanning as the displacement fields will unlikely
-        be more than 8 bits!
-
-     Without frame pointer:
-        add <size>,sp
-	Register saves for d2, d3, a1, a2 as needed.  Saves start
-	at sp + <outgoing_args_size> and work towards higher addresses.
-
-     Out of line prologue:
-	add <local size>,sp  -- optional
-	jsr __prologue
-	add <outgoing_size>,sp -- optional
-
-   The stack pointer remains constant throughout the life of most
-   functions.  As a result the compiler will usually omit the
-   frame pointer, so we must handle frame pointerless functions.  */
-
-/* Analyze the prologue to determine where registers are saved,
-   the end of the prologue, etc etc.  Return the end of the prologue
-   scanned.
-
-   We store into FI (if non-null) several tidbits of information:
-
-    * stack_size -- size of this stack frame.  Note that if we stop in
-    certain parts of the prologue/epilogue we may claim the size of the
-    current frame is zero.  This happens when the current frame has
-    not been allocated yet or has already been deallocated.
-
-    * fsr -- Addresses of registers saved in the stack by this frame.
-
-    * status -- A (relatively) generic status indicator.  It's a bitmask
-    with the following bits: 
-
-      MY_FRAME_IN_SP: The base of the current frame is actually in
-      the stack pointer.  This can happen for frame pointerless
-      functions, or cases where we're stopped in the prologue/epilogue
-      itself.  For these cases mn10200_analyze_prologue will need up
-      update fi->frame before returning or analyzing the register
-      save instructions.
-
-      MY_FRAME_IN_FP: The base of the current frame is in the
-      frame pointer register ($a2).
-
-      CALLER_A2_IN_A0: $a2 from the caller's frame is temporarily
-      in $a0.  This can happen if we're stopped in the prologue.
-
-      NO_MORE_FRAMES: Set this if the current frame is "start" or
-      if the first instruction looks like mov <imm>,sp.  This tells
-      frame chain to not bother trying to unwind past this frame.  */
-
-#define MY_FRAME_IN_SP 0x1
-#define MY_FRAME_IN_FP 0x2
-#define CALLER_A2_IN_A0 0x4
-#define NO_MORE_FRAMES 0x8
- 
-static CORE_ADDR
-mn10200_analyze_prologue (fi, pc)
-    struct frame_info *fi;
-    CORE_ADDR pc;
-{
-  CORE_ADDR func_addr, func_end, addr, stop;
-  CORE_ADDR stack_size;
-  unsigned char buf[4];
-  int status;
-  char *name;
-  int out_of_line_prologue = 0;
-
-  /* Use the PC in the frame if it's provided to look up the
-     start of this function.  */
-  pc = (fi ? fi->pc : pc);
-
-  /* Find the start of this function.  */
-  status = find_pc_partial_function (pc, &name, &func_addr, &func_end);
-
-  /* Do nothing if we couldn't find the start of this function or if we're
-     stopped at the first instruction in the prologue.  */
-  if (status == 0)
-    return pc;
-
-  /* If we're in start, then give up.  */
-  if (strcmp (name, "start") == 0)
-    {
-      if (fi)
-        fi->status = NO_MORE_FRAMES;
-      return pc;
-    }
-
-  /* At the start of a function our frame is in the stack pointer.  */
-  if (fi)
-    fi->status = MY_FRAME_IN_SP;
-
-  /* If we're physically on an RTS instruction, then our frame has already
-     been deallocated.
-
-     fi->frame is bogus, we need to fix it.  */
-  if (fi && fi->pc + 1 == func_end)
-    {
-      status = target_read_memory (fi->pc, buf, 1);
-      if (status != 0)
-	{
-	  if (fi->next == NULL)
-	    fi->frame = read_sp ();
-	  return fi->pc;
-	}
-
-      if (buf[0] == 0xfe)
-	{
-	  if (fi->next == NULL)
-	    fi->frame = read_sp ();
-	  return fi->pc;
-	}
-    }
-
-  /* Similarly if we're stopped on the first insn of a prologue as our
-     frame hasn't been allocated yet.  */
-  if (fi && fi->pc == func_addr)
-    {
-      if (fi->next == NULL)
-	fi->frame = read_sp ();
-      return fi->pc;
-    }
-
-  /* Figure out where to stop scanning.  */
-  stop = fi ? fi->pc : func_end;
-
-  /* Don't walk off the end of the function.  */
-  stop = stop > func_end ? func_end : stop;
-
-  /* Start scanning on the first instruction of this function.  */
-  addr = func_addr;
-
-  status = target_read_memory (addr, buf, 2);
-  if (status != 0)
-    {
-      if (fi && fi->next == NULL && fi->status & MY_FRAME_IN_SP)
-	fi->frame = read_sp ();
-      return addr;
-    }
-
-  /* First see if this insn sets the stack pointer; if so, it's something
-     we won't understand, so quit now.   */
-  if (buf[0] == 0xdf
-      || (buf[0] == 0xf4 && buf[1] == 0x77))
-    {
-      if (fi)
-	fi->status = NO_MORE_FRAMES;
-      return addr;
-    }
-
-  /* Now see if we have a frame pointer.
-       
-     Search for mov a2,a0 (0xf278)
-        then	mov a3,a2 (0xf27e).  */
-
-  if (buf[0] == 0xf2 && buf[1] == 0x78)
-    {
-      /* Our caller's $a2 will be found in $a0 now.  Note it for
-	 our callers.  */
-      if (fi)
-	fi->status |= CALLER_A2_IN_A0;
-      addr += 2;
-      if (addr >= stop)
-	{
-	  /* We still haven't allocated our local stack.  Handle this
-	     as if we stopped on the first or last insn of a function.   */
-	  if (fi && fi->next == NULL)
-	    fi->frame = read_sp ();
-	  return addr;
-	}
-
-      status = target_read_memory (addr, buf, 2);
-      if (status != 0)
-	{
-	  if (fi && fi->next == NULL)
-	    fi->frame = read_sp ();
-	  return addr;
-	}
-      if (buf[0] == 0xf2 && buf[1] == 0x7e)
-	{
-	  addr += 2;
-
-	  /* Our frame pointer is valid now.  */
-	  if (fi)
-	    {
-	      fi->status |= MY_FRAME_IN_FP;
-	      fi->status &= ~MY_FRAME_IN_SP;
-	    }
-	  if (addr >= stop)
-	    return addr;
-	}
-      else
-	{
-	  if (fi && fi->next == NULL)
-	    fi->frame = read_sp ();
-	  return addr;
-	}
-    }
-
-  /* Next we should allocate the local frame.
-       
-     Search for add imm8,a3 (0xd3XX)
-        or	add imm16,a3 (0xf70bXXXX)
-        or	add imm24,a3 (0xf467XXXXXX).
-       
-     If none of the above was found, then this prologue has
-     no stack, and therefore can't have any register saves,
-     so quit now.  */
-  status = target_read_memory (addr, buf, 2);
-  if (status != 0)
-    {
-      if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	fi->frame = read_sp ();
-      return addr;
-    }
-  if (buf[0] == 0xd3)
-    {
-      stack_size = extract_signed_integer (&buf[1], 1);
-      if (fi)
-	fi->stack_size = stack_size;
-      addr += 2;
-      if (addr >= stop)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    fi->frame = read_sp () - stack_size;
-	  return addr;
-	}
-    }
-  else if (buf[0] == 0xf7 && buf[1] == 0x0b)
-    {
-      status = target_read_memory (addr + 2, buf, 2);
-      if (status != 0)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    fi->frame = read_sp ();
-	  return addr;
-	}
-      stack_size = extract_signed_integer (buf, 2);
-      if (fi)
-	fi->stack_size = stack_size;
-      addr += 4;
-      if (addr >= stop)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    fi->frame = read_sp () - stack_size;
-	  return addr;
-	}
-    }
-  else if (buf[0] == 0xf4 && buf[1] == 0x67)
-    {
-      status = target_read_memory (addr + 2, buf, 3);
-      if (status != 0)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    fi->frame = read_sp ();
-	  return addr;
-	}
-      stack_size = extract_signed_integer (buf, 3);
-      if (fi)
-	fi->stack_size = stack_size;
-      addr += 5;
-      if (addr >= stop)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    fi->frame = read_sp () - stack_size;
-	  return addr;
-	}
-    }
-
-  /* Now see if we have a call to __prologue for an out of line
-     prologue.  */
-  status = target_read_memory (addr, buf, 2);
-  if (status != 0)
-    return addr;
-
-  /* First check for 16bit pc-relative call to __prologue.  */
-  if (buf[0] == 0xfd)
-    {
-      CORE_ADDR temp;
-      status = target_read_memory (addr + 1, buf, 2);
-      if (status != 0)
-	{
-  	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-    	    fi->frame = read_sp ();
-	  return addr;
-	}
-      
-      /* Get the PC this instruction will branch to.  */
-      temp = (extract_signed_integer (buf, 2) + addr + 3) & 0xffffff;
-
-      /* Get the name of the function at the target address.  */
-      status = find_pc_partial_function (temp, &name, NULL, NULL);
-      if (status == 0)
-	{
-  	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-    	    fi->frame = read_sp ();
-	  return addr;
-	}
-
-      /* Note if it is an out of line prologue.  */
-      out_of_line_prologue = (strcmp (name, "__prologue") == 0);
-
-      /* This sucks up 3 bytes of instruction space.  */
-      if (out_of_line_prologue)
-	addr += 3;
-
-      if (addr >= stop)
-	{
-	  if (fi && fi->next == NULL)
-	    {
-	      fi->stack_size -= 16;
-	      fi->frame = read_sp () - fi->stack_size;
-	    }
-	  return addr;
-	}
-    }
-  /* Now check for the 24bit pc-relative call to __prologue.  */
-  else if (buf[0] == 0xf4 && buf[1] == 0xe1)
-    {
-      CORE_ADDR temp;
-      status = target_read_memory (addr + 2, buf, 3);
-      if (status != 0)
-	{
-  	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-    	    fi->frame = read_sp ();
-	  return addr;
-	}
-      
-      /* Get the PC this instruction will branch to.  */
-      temp = (extract_signed_integer (buf, 3) + addr + 5) & 0xffffff;
-
-      /* Get the name of the function at the target address.  */
-      status = find_pc_partial_function (temp, &name, NULL, NULL);
-      if (status == 0)
-	{
-  	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-    	    fi->frame = read_sp ();
-	  return addr;
-	}
-
-      /* Note if it is an out of line prologue.  */
-      out_of_line_prologue = (strcmp (name, "__prologue") == 0);
-
-      /* This sucks up 5 bytes of instruction space.  */
-      if (out_of_line_prologue)
-	addr += 5;
-
-      if (addr >= stop)
-	{
-	  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP))
-	    {
-	      fi->stack_size -= 16;
-	      fi->frame = read_sp () - fi->stack_size;
-	    }
-	  return addr;
-	}
-    }
-
-  /* Now actually handle the out of line prologue.  */
-  if (out_of_line_prologue)
-    {
-      int outgoing_args_size = 0;
-
-      /* First adjust the stack size for this function.  The out of
-	 line prologue saves 4 registers (16bytes of data).  */
-      if (fi)
-	fi->stack_size -= 16;
-
-      /* Update fi->frame if necessary.  */
-      if (fi && fi->next == NULL)
-	fi->frame = read_sp () - fi->stack_size;
-
-      /* After the out of line prologue, there may be another
-	 stack adjustment for the outgoing arguments.
-
-	 Search for add imm8,a3 (0xd3XX)
-	    or	add imm16,a3 (0xf70bXXXX)
-	    or	add imm24,a3 (0xf467XXXXXX).  */
-       
-      status = target_read_memory (addr, buf, 2);
-      if (status != 0)
-	{
-	  if (fi)
-	    {
-	      fi->fsr.regs[2] = fi->frame + fi->stack_size + 4;
-	      fi->fsr.regs[3] = fi->frame + fi->stack_size + 8;
-	      fi->fsr.regs[5] = fi->frame + fi->stack_size + 12;
-	      fi->fsr.regs[6] = fi->frame + fi->stack_size + 16;
-	    }
-	  return addr;
-	}
-
-      if (buf[0] == 0xd3)
-	{
-	  outgoing_args_size = extract_signed_integer (&buf[1], 1);
-	  addr += 2;
-	}
-      else if (buf[0] == 0xf7 && buf[1] == 0x0b)
-	{
-	  status = target_read_memory (addr + 2, buf, 2);
-	  if (status != 0)
-	    {
-	      if (fi)
-		{
-		  fi->fsr.regs[2] = fi->frame + fi->stack_size + 4;
-		  fi->fsr.regs[3] = fi->frame + fi->stack_size + 8;
-		  fi->fsr.regs[5] = fi->frame + fi->stack_size + 12;
-		  fi->fsr.regs[6] = fi->frame + fi->stack_size + 16;
-		}
-	      return addr;
-	    }
-	  outgoing_args_size = extract_signed_integer (buf, 2);
-	  addr += 4;
-	}
-      else if (buf[0] == 0xf4 && buf[1] == 0x67)
-	{
-	  status = target_read_memory (addr + 2, buf, 3);
-	  if (status != 0)
-	    {
-	      if (fi && fi->next == NULL)
-		{
-		  fi->fsr.regs[2] = fi->frame + fi->stack_size + 4;
-		  fi->fsr.regs[3] = fi->frame + fi->stack_size + 8;
-		  fi->fsr.regs[5] = fi->frame + fi->stack_size + 12;
-		  fi->fsr.regs[6] = fi->frame + fi->stack_size + 16;
-		}
-	      return addr;
-	    }
-	  outgoing_args_size = extract_signed_integer (buf, 3);
-	  addr += 5;
-	}
-      else
-	outgoing_args_size = 0;
-
-      /* Now that we know the size of the outgoing arguments, fix
-	 fi->frame again if this is the innermost frame.  */
-      if (fi && fi->next == NULL)
-	fi->frame -= outgoing_args_size;
-
-      /* Note the register save information and update the stack
-	 size for this frame too.  */
-      if (fi)
-	{
-	  fi->fsr.regs[2] = fi->frame + fi->stack_size + 4;
-	  fi->fsr.regs[3] = fi->frame + fi->stack_size + 8;
-	  fi->fsr.regs[5] = fi->frame + fi->stack_size + 12;
-	  fi->fsr.regs[6] = fi->frame + fi->stack_size + 16;
-	  fi->stack_size += outgoing_args_size;
-	}
-      /* There can be no more prologue insns, so return now.  */
-      return addr;
-    }
-
-  /* At this point fi->frame needs to be correct.
-
-     If MY_FRAME_IN_SP is set and we're the innermost frame, then we
-     need to fix fi->frame so that backtracing, find_frame_saved_regs,
-     etc work correctly.  */
-  if (fi && fi->next == NULL && (fi->status & MY_FRAME_IN_SP) != 0)
-    fi->frame = read_sp () - fi->stack_size;
-
-  /* And last we have the register saves.  These are relatively
-     simple because they're physically done off the stack pointer,
-     and thus the number of different instructions we need to
-     check is greatly reduced because we know the displacements
-     will be small.
-       
-     Search for movx d2,(X,a3) (0xf55eXX)
-        then	movx d3,(X,a3) (0xf55fXX)
-        then	mov  a1,(X,a3) (0x5dXX)	   No frame pointer case
-        then	mov  a2,(X,a3) (0x5eXX)	   No frame pointer case
-        or  mov  a0,(X,a3) (0x5cXX)	   Frame pointer case.  */
-
-  status = target_read_memory (addr, buf, 2);
-  if (status != 0)
-    return addr;
-  if (buf[0] == 0xf5 && buf[1] == 0x5e)
-    {
-      if (fi)
-	{
-	  status = target_read_memory (addr + 2, buf, 1);
-	  if (status != 0)
-	    return addr;
-	  fi->fsr.regs[2] = (fi->frame + stack_size
-			     + extract_signed_integer (buf, 1));
-	}
-      addr += 3;
-      if (addr >= stop)
-	return addr;
-      status = target_read_memory (addr, buf, 2);
-      if (status != 0)
-	return addr;
-    }
-  if (buf[0] == 0xf5 && buf[1] == 0x5f)
-    {
-      if (fi)
-	{
-	  status = target_read_memory (addr + 2, buf, 1);
-	  if (status != 0)
-	    return addr;
-	  fi->fsr.regs[3] = (fi->frame + stack_size
-			     + extract_signed_integer (buf, 1));
-	}
-      addr += 3;
-      if (addr >= stop)
-	return addr;
-      status = target_read_memory (addr, buf, 2);
-      if (status != 0)
-	return addr;
-    }
-  if (buf[0] == 0x5d)
-    {
-      if (fi)
-	{
-	  status = target_read_memory (addr + 1, buf, 1);
-	  if (status != 0)
-	    return addr;
-	  fi->fsr.regs[5] = (fi->frame + stack_size
-			     + extract_signed_integer (buf, 1));
-	}
-      addr += 2;
-      if (addr >= stop)
-	return addr;
-      status = target_read_memory (addr, buf, 2);
-      if (status != 0)
-	return addr;
-    }
-  if (buf[0] == 0x5e || buf[0] == 0x5c)
-    {
-      if (fi)
-	{
-	  status = target_read_memory (addr + 1, buf, 1);
-	  if (status != 0)
-	    return addr;
-	  fi->fsr.regs[6] = (fi->frame + stack_size
-			     + extract_signed_integer (buf, 1));
-	  fi->status &= ~CALLER_A2_IN_A0;
-	}
-      addr += 2;
-      if (addr >= stop)
-	return addr;
-      return addr;
-    }
-  return addr;
-}
-  
-/* Function: frame_chain
-   Figure out and return the caller's frame pointer given current
-   frame_info struct.
-
-   We don't handle dummy frames yet but we would probably just return the
-   stack pointer that was in use at the time the function call was made?  */
-
-CORE_ADDR
-mn10200_frame_chain (fi)
-     struct frame_info *fi;
-{
-  struct frame_info dummy_frame;
-
-  /* Walk through the prologue to determine the stack size,
-     location of saved registers, end of the prologue, etc.  */
-  if (fi->status == 0)
-    mn10200_analyze_prologue (fi, (CORE_ADDR)0);
-
-  /* Quit now if mn10200_analyze_prologue set NO_MORE_FRAMES.  */
-  if (fi->status & NO_MORE_FRAMES)
-    return 0;
-
-  /* Now that we've analyzed our prologue, determine the frame
-     pointer for our caller.
-
-       If our caller has a frame pointer, then we need to
-       find the entry value of $a2 to our function.
-
-	 If CALLER_A2_IN_A0, then the chain is in $a0.
-
-	 If fsr.regs[6] is nonzero, then it's at the memory
-	 location pointed to by fsr.regs[6].
-
-	 Else it's still in $a2.
-
-       If our caller does not have a frame pointer, then his
-       frame base is fi->frame + -caller's stack size + 4.  */
-       
-  /* The easiest way to get that info is to analyze our caller's frame.
-
-     So we set up a dummy frame and call mn10200_analyze_prologue to
-     find stuff for us.  */
-  dummy_frame.pc = FRAME_SAVED_PC (fi);
-  dummy_frame.frame = fi->frame;
-  memset (dummy_frame.fsr.regs, '\000', sizeof dummy_frame.fsr.regs);
-  dummy_frame.status = 0;
-  dummy_frame.stack_size = 0;
-  mn10200_analyze_prologue (&dummy_frame);
-
-  if (dummy_frame.status & MY_FRAME_IN_FP)
-    {
-      /* Our caller has a frame pointer.  So find the frame in $a2, $a0,
-	 or in the stack.  */
-      if (fi->fsr.regs[6])
-	return (read_memory_integer (fi->fsr.regs[FP_REGNUM], REGISTER_SIZE)
-		& 0xffffff);
-      else if (fi->status & CALLER_A2_IN_A0)
-	return read_register (4);
-      else
-	return read_register (FP_REGNUM);
-    }
-  else
-    {
-      /* Our caller does not have a frame pointer.  So his frame starts
-	 at the base of our frame (fi->frame) + <his size> + 4 (saved pc).  */
-      return fi->frame + -dummy_frame.stack_size + 4;
-    }
-}
-
-/* Function: skip_prologue
-   Return the address of the first inst past the prologue of the function.  */
-
-CORE_ADDR
-mn10200_skip_prologue (pc)
-     CORE_ADDR pc;
-{
-  /* We used to check the debug symbols, but that can lose if
-     we have a null prologue.  */
-  return mn10200_analyze_prologue (NULL, pc);
-}
-
-/* Function: pop_frame
-   This routine gets called when either the user uses the `return'
-   command, or the call dummy breakpoint gets hit.  */
-
-void
-mn10200_pop_frame (frame)
-     struct frame_info *frame;
-{
-  int regnum;
-
-  if (PC_IN_CALL_DUMMY(frame->pc, frame->frame, frame->frame))
-    generic_pop_dummy_frame ();
-  else
-    {
-      write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
-
-      /* Restore any saved registers.  */
-      for (regnum = 0; regnum < NUM_REGS; regnum++)
-	if (frame->fsr.regs[regnum] != 0)
-	  {
-	    ULONGEST value;
-
-	    value = read_memory_unsigned_integer (frame->fsr.regs[regnum],
-						  REGISTER_RAW_SIZE (regnum));
-	    write_register (regnum, value);
-	  }
-
-      /* Actually cut back the stack.  */
-      write_register (SP_REGNUM, FRAME_FP (frame));
-
-      /* Don't we need to set the PC?!?  XXX FIXME.  */
-    }
-
-  /* Throw away any cached frame information.  */
-  flush_cached_frames ();
-}
-
-/* Function: push_arguments
-   Setup arguments for a call to the target.  Arguments go in
-   order on the stack.  */
-
-CORE_ADDR
-mn10200_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;
-{
-  int argnum = 0;
-  int len = 0;
-  int stack_offset = 0;
-  int regsused = struct_return ? 1 : 0;
-
-  /* This should be a nop, but align the stack just in case something
-     went wrong.  Stacks are two byte aligned on the mn10200.  */
-  sp &= ~1;
-
-  /* Now make space on the stack for the args.
-
-     XXX This doesn't appear to handle pass-by-invisible reference
-     arguments.  */
-  for (argnum = 0; argnum < nargs; argnum++)
-    {
-      int arg_length = (TYPE_LENGTH (VALUE_TYPE (args[argnum])) + 1) & ~1;
-
-      /* If we've used all argument registers, then this argument is
-	 pushed.  */
-      if (regsused >= 2 || arg_length > 4)
-	{
-	  regsused = 2;
-	  len += arg_length;
-	}
-      /* We know we've got some arg register space left.  If this argument
-	 will fit entirely in regs, then put it there.  */
-      else if (arg_length <= 2
-	       || TYPE_CODE (VALUE_TYPE (args[argnum])) == TYPE_CODE_PTR) 
-	{
-	  regsused++;
-	}
-      else if (regsused == 0)
-	{
-	  regsused = 2;
-	}
-      else
-	{
-	  regsused = 2;
-	  len += arg_length;
-	}
-    }
-
-  /* Allocate stack space.  */
-  sp -= len;
-
-  regsused = struct_return ? 1 : 0;
-  /* Push all arguments onto the stack. */
-  for (argnum = 0; argnum < nargs; argnum++)
-    {
-      int len;
-      char *val;
-
-      /* XXX Check this.  What about UNIONS?  */
-      if (TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_STRUCT
-	  && TYPE_LENGTH (VALUE_TYPE (*args)) > 8)
-	{
-	  /* XXX Wrong, we want a pointer to this argument.  */
-          len = TYPE_LENGTH (VALUE_TYPE (*args));
-          val = (char *)VALUE_CONTENTS (*args);
-	}
-      else
-	{
-	  len = TYPE_LENGTH (VALUE_TYPE (*args));
-	  val = (char *)VALUE_CONTENTS (*args);
-	}
-
-      if (regsused < 2
-	  && (len <= 2
-	      || TYPE_CODE (VALUE_TYPE (*args)) == TYPE_CODE_PTR))
-	{
-	  write_register (regsused, extract_unsigned_integer (val, 4));
-	  regsused++;
-	}
-      else if (regsused == 0 && len == 4)
-	{
-	  write_register (regsused, extract_unsigned_integer (val, 2));
-	  write_register (regsused + 1, extract_unsigned_integer (val + 2, 2));
-	  regsused = 2;
-	}
-      else
-	{
-	  regsused = 2;
-	  while (len > 0)
-	    {
-	      write_memory (sp + stack_offset, val, 2);
-
-	      len -= 2;
-	      val += 2;
-	      stack_offset += 2;
-	    }
-	}
-      args++;
-    }
-
-  return sp;
-}
-
-/* Function: push_return_address (pc)
-   Set up the return address for the inferior function call.
-   Needed for targets where we don't actually execute a JSR/BSR instruction */
- 
-CORE_ADDR
-mn10200_push_return_address (pc, sp)
-     CORE_ADDR pc;
-     CORE_ADDR sp;
-{
-  unsigned char buf[4];
-
-  store_unsigned_integer (buf, 4, CALL_DUMMY_ADDRESS ());
-  write_memory (sp - 4, buf, 4);
-  return sp - 4;
-}
-
-/* Function: store_struct_return (addr,sp)
-   Store the structure value return address for an inferior function
-   call.  */
- 
-CORE_ADDR
-mn10200_store_struct_return (addr, sp)
-     CORE_ADDR addr;
-     CORE_ADDR sp;
-{
-  /* The structure return address is passed as the first argument.  */
-  write_register (0, addr);
-  return sp;
-}
- 
-/* Function: frame_saved_pc 
-   Find the caller of this frame.  We do this by seeing if RP_REGNUM
-   is saved in the stack anywhere, otherwise we get it from the
-   registers.  If the inner frame is a dummy frame, return its PC
-   instead of RP, because that's where "caller" of the dummy-frame
-   will be found.  */
-
-CORE_ADDR
-mn10200_frame_saved_pc (fi)
-     struct frame_info *fi;
-{
-  /* The saved PC will always be at the base of the current frame.  */
-  return (read_memory_integer (fi->frame, REGISTER_SIZE) & 0xffffff);
-}
-
-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);
-}
-
-/* Function: init_extra_frame_info
-   Setup the frame's frame pointer, pc, and frame addresses for saved
-   registers.  Most of the work is done in mn10200_analyze_prologue().
-
-   Note that when we are called for the last frame (currently active frame),
-   that fi->pc and fi->frame will already be setup.  However, fi->frame will
-   be valid only if this routine uses FP.  For previous frames, fi-frame will
-   always be correct.  mn10200_analyze_prologue will fix fi->frame if
-   it's not valid.
-
-   We can be called with the PC in the call dummy under two circumstances.
-   First, during normal backtracing, second, while figuring out the frame
-   pointer just prior to calling the target function (see run_stack_dummy).  */
-
-void
-mn10200_init_extra_frame_info (fi)
-     struct frame_info *fi;
-{
-  if (fi->next)
-    fi->pc = FRAME_SAVED_PC (fi->next);
-
-  memset (fi->fsr.regs, '\000', sizeof fi->fsr.regs);
-  fi->status = 0;
-  fi->stack_size = 0;
-
-  mn10200_analyze_prologue (fi, 0);
-}
-
-void
-_initialize_mn10200_tdep ()
-{
-  tm_print_insn = print_insn_mn10200;
-}
-