* alldeps.mak, configure.in, i860-break.h, i860-opcode.h,

	i860-pinsn.c, i860-tdep.c, config/i860/*:  Remove incomplete i860
	support that can't be integrated anyway due to lack of clear
	authorship.

1 files changed, 0 insertions, 2224 deletions

diff --git a/gdb/i860-tdep.c b/gdb/i860-tdep.c
index 5b823ef..e69de29 100644
--- a/gdb/i860-tdep.c
+++ b/gdb/i860-tdep.c
@@ -1,2224 +0,0 @@
-/* Machine-dependent code which would otherwise be in inflow.c and core.c,
-   for GDB, the GNU debugger.
-   Copyright (C) 1986, 1987 Free Software Foundation, Inc.
-   This code is for the i860 cpu.
-   
-   GDB is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY.  No author or distributor accepts responsibility to anyone
-   for the consequences of using it or for whether it serves any
-   particular purpose or works at all, unless he says so in writing.
-   Refer to the GDB General Public License for full details.
-   
-   Everyone is granted permission to copy, modify and redistribute GDB,
-   but only under the conditions described in the GDB General Public
-   License.  A copy of this license is supposed to have been given to you
-   along with GDB so you can know your rights and responsibilities.  It
-   should be in a file named COPYING.  Among other things, the copyright
-   notice and this notice must be preserved on all copies.
-   
-   In other words, go ahead and share GDB, but don't try to stop
-   anyone else from sharing it farther.  Help stamp out software hoarding!
-   */
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "obstack.h"
-#include "symtab.h"
-#include "value.h"
-#include "gdbcore.h"
-
-#include "i860-opcode.h"
-
-#include "breakpoint.h"
-#include "i860-break.h"
-#include "command.h"
-#include "target.h"
-
-#ifdef notdef
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#endif
-
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-/* #include <sys/reg.h> */
-#include "i860_reg.h"
-
-#include <a.out.h>
-#include <sys/file.h>
-#include <core.h>
-
-#include <sys/user.h>
-#include <elf.h>
-#include <sys/elftypes.h>
-#include <sys/elf_860.h>
-#include <libelf.h>
-
-
-extern int print_insn();
-
-int btdebug = 0;    /* change value to 1 to enable debugging code */
-int ansi_conformant;
-
-#define  BTDEBUG  if (btdebug) btdebug_message
-
-extern int errno;
-extern char registers[];
-CORE_ADDR get_saved_basereg();
-
-#define INSTRUCTION_LENGTH 4
-#define REGISTER_LENGTH 4
-#define ALIGN_ARG(size,len)  ((size + (len-1))&(-len)) 
-#define NUM_FLOAT_ARG_REGS 8
-#define NUM_INT_ARG_REGS 12
-
-/* routine to print debugging messages */
-void btdebug_message(char *format, ...)
-{	
-   va_list	arglist;
-   va_start( arglist, format );
-   
-   if( btdebug )
-      vfprintf (stderr,  format, arglist );
-   va_end  ( arglist 	  );
-}
-
-
-/* Peggy Fieland. Routine that attempts to find the start of the entry sequence
-   for a routine. */
-/* maximum number of instrutions to search back */
-#define MAX_ROUTINE_SIZE 4096
-CORE_ADDR find_entry_start(pc)
-CORE_ADDR pc;
-{
-   CORE_ADDR instr, top_pc;
-   int i;
-   
-   top_pc = pc;
-   for (i = 0; i <  MAX_ROUTINE_SIZE; ++i)
-
-      {
-         instr = (unsigned)( adj_read_memory_integer (top_pc));
-         /* Recognize "addu|adds -X,sp,sp" insn. */
-
-         if ((instr & 0xEFFF0000) == 0x84420000) 
-            {
-	      return (top_pc);
-            } 
-         top_pc -= INSTRUCTION_LENGTH;
-      }
-   return (0);
-}
-
-
-
-/* Written by Peggy Fieland (Margaret_Fieland@vos.stratus.com) */
-/* get the contents of a base register.  Used for dwarf OP_BASEREG */
-/* At present, only OP_BASEREG generated is for R28.  NOTE that for stuff based on R28,
-   the value we want is the VALUE AT PROCEDURE INVOKATION, and thus is the frame we
-   use to get the value is the caller's frame. */
-CORE_ADDR get_saved_basereg (frame, basereg)
-FRAME frame;
-int basereg;
-{
-   CORE_ADDR addr;
-   if (basereg == R28)   /* Unconditionally ??? */
-      {
-         frame = get_prev_frame (frame);
-         get_saved_register((char *) &addr, (int *) NULL,  (CORE_ADDR *) NULL, frame,
-                            basereg, (enum lval_type *)NULL);
-
-      }
-   else
-      get_saved_register((char *) &addr, (int *) NULL,  (CORE_ADDR *) NULL, frame,
-                         basereg, (enum lval_type *)NULL);
-
-   return (addr);
-}
-  
-
-
-/* return nonzero if the routine containing pc has been 
- * compiled with -g. We assume -g if the first instruction is 
- * an  addu|adds -X,sp and the second is st.l fp,XX(sp) 
- *
- *	based on  skip_prologue();
- */
-
-static int g_routine(pc)
-
-     CORE_ADDR pc;
-{
-   CORE_ADDR instr;
-   CORE_ADDR top_pc;
-   
-   top_pc = get_pc_function_start(pc);
-   if (top_pc == NULL)
-     top_pc = find_entry_start (pc);
-
-   if (top_pc != NULL)
-      {
-         instr = (unsigned)( adj_read_memory_integer (top_pc));
-         /* Recognize "addu|adds -X,sp,sp" insn. */
-   
-         if ((instr & 0xEFFF0000) == 0x84420000) 
-            {
-               top_pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (top_pc));
-      
-               if( (instr & 0xFFE0F801) == 0x1C401801 )    /* st.l fp,X(sp) */
-                  return(1);
-            } 
-      }
-   return(0);
-}
-
-
-/* return the stack offset where the fp register is stored */
-static int find_fp_offset(pc)
-CORE_ADDR pc;
-{
-   int fp_off,i;
-   CORE_ADDR	instr;
-   
-   /* look for the instruction and examine the offset */
-   
-   for (i=INSTRUCTION_LENGTH*1; i< INSTRUCTION_LENGTH*4; i+=INSTRUCTION_LENGTH){
-      instr =   (unsigned)(adj_read_memory_integer(pc+i));
-      if( (instr & 0xFFE0F801) == 0x1C401801) {    /* st.l fp,X(sp) */
-         
-         fp_off = SIGN_EXT16(((instr&0x001F0000) >> 5) | 
-                             (instr&0x000007FE));
-         return(fp_off);
-      }
-   }
-   return(0);
-}
-
-
-/* return the stack offset where r1 (return linkage ) register is stored */
-static CORE_ADDR find_r1(pc,sp,fp)
-CORE_ADDR pc,sp, fp;
-{
-   int r1_off,i;
-   CORE_ADDR	instr, ret_pc;
-   
-   /* look for the instruction and examine the offset */
-   
-   for (i=INSTRUCTION_LENGTH*1; i< INSTRUCTION_LENGTH*4; i+=INSTRUCTION_LENGTH)
-      {
-         instr = (unsigned)( adj_read_memory_integer(pc+i));
-         if ((instr & 0xFFE0F801) == 0x1C400801) 
-            { 
-               /* st.l r1,X(sp) */
-         
-               r1_off = SIGN_EXT16(((instr&0x001F0000) >> 5) | 
-                                   (instr&0x000007FE));
-               ret_pc = read_memory_integer(sp+r1_off,sizeof(long));
-               return(ret_pc);
-            }
-         else if ((instr & 0xFFE0F801) == 0x1C600801) 
-         { 
-            /* st.l r1,X(fp) */
-            r1_off = SIGN_EXT16(((instr&0x001F0000) >> 5) | 
-                                (instr&0x000007FE));
-            ret_pc = read_memory_integer(fp+r1_off,sizeof(long));
-            return(ret_pc);
-         }
-      }
-   return(0);
-}
-
-CORE_ADDR skip_prologue(CORE_ADDR);
-
-/* does routine starting at pc build a stack frame of any kind?? */
-static int has_a_frame(pc)
-CORE_ADDR pc;
-{
-   if( skip_prologue(pc) != pc )return(1);
-   else return(0);
-}
-
-
-/* written by Peggy Fieland Margaret_Fieland@vos.stratus.com
-   Routine to validate the return register and the frame pointer
-   This routine is called when the routine we are in doesn't have a frame
-   In that case, we assume that the return address and frame pointer have 
-   not been touched.  In the following routine, we try to range check them 
-  to see if they are valid. */
-
-static int valid_regs (rp, fp)
-CORE_ADDR rp, fp;
-{
-   if ( ( (rp % 4) != 0) | ( (fp % 16) != 0) )
-      return (0);
-   else 
-      return (1);
-}
-/* get the pc and frame pointer (or sp )
- * for the routine that called us
- * when we (this_pc) is not within a  -g routine
- * if caller is non g we return sp for fp
- */
-
-/* note this is written for Metaware version R2.1d compiler */
-/* Modified by Peggy Fieland Margaret_Fieland@vos.stratus.com */
-static int caller_pc(this_pc,this_sp,this_fp,to_pc,to_fp, called_from_frame_chain)
-     CORE_ADDR this_pc,this_sp, this_fp;
-     CORE_ADDR *to_pc, *to_fp;
-     int called_from_frame_chain;
-{
-   CORE_ADDR func_start;
-   int sp_offset,offset;
-   CORE_ADDR sp,pc,fp,instr;
-   
-   BTDEBUG("caller_pc %x sp = %x\n",this_pc,this_sp);
-   
-   func_start = get_pc_function_start(this_pc);
-
-   if (func_start == NULL)
-      func_start = find_entry_start (this_pc);
-
-   BTDEBUG("caller_pc func_start %x\n", func_start);
-
-   if ((func_start == NULL))
-      {
-               /* error in traceback */
-               fprintf(stderr, "error, unable to find start of function\n");
-               return(0);
-               
-      }
-
-   if (func_start!= NULL)
-      {
-         if( has_a_frame(func_start) ){
-      
-            BTDEBUG("has_a_frame\n");
-      
-            /* if our caller has a preamble and 
-             * declares space for a stack frame
-             * then we must work to find our return address
-             */
-            instr = (unsigned)( adj_read_memory_integer (func_start));
-            /* Recognize "addu|adds -X,sp,sp" insn. */
-      
-            if ((instr & 0xEFFF0000) == 0x84420000)
-               sp_offset=SIGN_EXT16(instr&0x0000FFFF);
-         }
-         else 	
-            { 
-               /* if we get here, procedure doesn't have a frame.  If we
-                  do anything weird, the frame pointer and return register have
-                  the values we want.  Check them to see if they are valid. */
-                  
-               CORE_ADDR temp_rp, temp_fp;
-
-               /* temporary warning, since at the moment we don't have support for
-                  the shared library */
-               
-               temp_rp = read_register(RP_REGNUM);
-               temp_fp = read_register(FP_REGNUM);
-
-               if (!valid_regs(temp_rp, temp_fp))
-                  {           
-                     fprintf(stderr, 
-                             "error - unable to find return address, traceback terminating\n");
-                     return(0);
-                  }
-               BTDEBUG("caller_pc no frame, using r1 %x and fp %x\n",
-                       temp_rp, temp_fp);
-               *to_pc = temp_rp;
-               *to_fp = temp_fp;
-               return (1);
-            }
-      
-      BTDEBUG("sp_offset = %d %x\n",sp_offset,sp_offset);
-      
-         pc = find_r1(func_start, this_sp, this_fp);
-      
-      if(pc == NULL)
-         {
-
-            /* r1 wasn't stored between pc and function start */
-            pc = read_register (RP_REGNUM);
-         }
-
-      sp= this_sp - sp_offset;
-      
-      BTDEBUG("callers pc = %x sp = %x\n",pc,sp);
-      
-      /* our caller a -g routine  ?
-       * if he is we have to find his real fp
-       * else provide the sp as his fp
-       */
-      
-      if( g_routine(pc) ){
-         
-         BTDEBUG("caller_a_g\n");
-         
-         if( ! (offset = find_fp_offset(func_start)) ) {
-            fprintf(stderr, "error - unable to find caller frame for routine at 0x%x, "
-                    "traceback terminating\n", func_start);
-            return(0);
-         }
-         BTDEBUG("offset = %x %d\n",offset,offset);
-         
-         fp = read_memory_integer(this_sp+offset,sizeof(long));
-         *to_pc = CLEAN_PC(pc);
-         *to_fp = fp;
-         return(1);
-      }else  
-         *to_pc = CLEAN_PC(pc);
-      *to_fp = sp;
-      return(1);
-   } else {
-/*      pc = read_register(RP_REGNUM); */
-/*       pc = 0;  */
-      /* if we get here, procedure doesn't have a frame.  If we didn't
-         do anything weird, the frame pointer and return register have
-         the values we want.  Check them to see if they are valid. */
-                  
-      CORE_ADDR temp_rp, temp_fp;
-      
-      temp_rp = read_register(RP_REGNUM);
-      temp_fp = read_register(FP_REGNUM);
-      
-      if (!valid_regs(temp_rp, temp_fp))
-         {           
-            fprintf(stderr, 
-                    "error - unable to find return address, traceback terminating\n");
-
-            return(0);
-         }
-      BTDEBUG("caller_pc no frame, using r1 %x and fp %x\n",
-              temp_rp, temp_fp);
-      *to_pc = temp_rp;
-      *to_fp = temp_fp;
-      return (1);
-   }
-}
-
-/*
- ** Figure out address to place next breakpoint. Avoid tricky spots, 
- **	ie. delayed instruction slots etc.
- ** Need to upgrade this later to allow delayed instruction breakpoints
- **	with fix-up work done AFTER breakpoint.
- ** Note that this routine DOES deal with dual instruction mode
- */
-#define BIM 0x8008
-
-static branch_type
-   place_brk (addr, mode, brk)
-CORE_ADDR addr; 
-int mode;
-struct breakpoint *brk;
-{
-   CORE_ADDR  instr;
-   CORE_ADDR nextadr, prevadr;
-   int val = not_branch;
-   long offset; /* Must be signed for sign-extend */
-   prevadr = nextadr = 0;
-   
-   brk->address1 = 0;
-   
-   if (mode == SINGLE_STEP_MODE)
-      {
-         if (INDIM || ENDIM)
-            {
-			nextadr = brk->address	 = (addr +  INSTRUCTION_LENGTH*2);
-  			instr	=  (unsigned)(adj_read_memory_integer ((addr + INSTRUCTION_LENGTH)));
-			brk->mode	= DIM;
-            }
-         else
-            {
-			nextadr = brk->address	 = (addr + INSTRUCTION_LENGTH);
-  			instr	=  (unsigned)(adj_read_memory_integer (addr));
-			if (STDIM) 
-                  brk->mode = DIM;
-			else
-                  brk->mode = SIM;
-            }
-         
-         
-         /*
-          ** For br/call one more sequential instruction gets executed and  then we
-          **	continue at the current addr + offset. We are definitely going to
-          **	the dest. We are NOT allowed to place a breakpoint in the "delay"
-          **	slot - (the next sequential instruction) so we only place 1 breakpoint
-          **	at the destination.
-          ** For the bc/bnc the next instruction executed is EITHER the next sequential
-          **	or the destination of the branch, we therefore place 2 breakpoints one
-          **	at each location.
-          ** For the bc.t/bnc.t either 1 more sequential instruction is performed
-          **	followed by a branch (like br/call) OR we skip the sequential 
-          **	instruction and keep going. We therefore place a breakpoint at the
-          **	destination of the branch AND the second sequential instruction after
-          **	the branch. Again a breakpoint is NOT allowed in the "delay slot"
-          */
-         if ((instr & 0xE0000000) == 0x60000000 &&	/* CTRL format */
-             (instr & 0xF8000000) != 0x60000000)		/* not pfld.y  */
-            {
-               if      ((instr & 0xF8000000) == 0x68000000)	/* br or call */
-                  val = uncond_d;
-               else if ((instr & 0xF4000000) == 0x74000000)	/* bc.t/bnc.t */
-                  val = cond_d;
-               else if ((instr & 0xF4000000) == 0x70000000)	/* bc or bnc  */
-                  val = cond;
-               offset = (instr & 0x03ffffff);
-               if (offset & 0x02000000)			/*?sign extend*/
-                  offset |= 0xFC000000;
-               if (val == uncond_d)			/* br/call*/
-                  prevadr = 0;
-               else if (val == cond_d)			/* bc.t/bnc.t */
-                  {
-                     if ((INDIM) && !(ENDIM))
-                        prevadr = nextadr + (2*INSTRUCTION_LENGTH);
-                     else
-                        prevadr = nextadr + INSTRUCTION_LENGTH;
-                  } else {				/* bc  /bnc   */
-                     if ((INDIM) && !(ENDIM))
-                        prevadr = nextadr;
-                     else
-                        prevadr = nextadr;
-                  }
-               nextadr += (offset << 2);
-            }
-         /*
-          ** We treat the bri/calli the same way as the br/call case.
-          */
-         else if ((instr & 0xFC00003F) == 0x4C000002 ||		/* calli    */
-                  (instr & 0xFC000000) == 0x40000000)		/* bri      */
-            {
-               val	= uncond_d;
-               offset	= ((instr & 0x0000F800) >> 11);
-               nextadr	= (read_register(offset + R0) & 0xFFFFFFFC);
-               prevadr = 0;
-            }
-         /*
-          ** We treat the bte/btne the same way as the bc/bnc case.
-          */
-         else if ((instr & 0xF0000000) == 0x50000000) 		/* bte/btne */
-            {
-               val = cond;
-               offset = SIGN_EXT16(((instr & 0x001F0000) >> 5)  | 
-                                   (instr & 0x000007FF));
-               if ((INDIM) && !(ENDIM))
-                  prevadr = nextadr;
-               else
-                  prevadr = nextadr;
-               
-               nextadr += (offset << 2);
-            }
-         /*
-          ** We treat the bte/btne the same way as the bc/bnc case.
-          **	With the caveat that the 2 breakpoints may turn out to be at the same
-          **	address in which case we ignore one of them.
-          */
-         else if ((instr & 0xFC000000) == 0xB4000000)		/* bla */
-            {
-               val	= cond_d;
-               offset	= SIGN_EXT16(((instr & 0x001F0000) >> 5)  | 
-                                      (instr & 0x000007FF));
-               if ((INDIM) && !(ENDIM))
-                  {
-                     prevadr = nextadr + 2*INSTRUCTION_LENGTH;
-                  } else	{
-                     prevadr = nextadr + INSTRUCTION_LENGTH;
-                  }
-               nextadr += (offset << 2);
-               if (prevadr == nextadr) prevadr = 0;
-            }
-      } else	{
-         int adjust = 0;
-         
-         nextadr = addr;
-         
-         if (ISDIM(FOPADR(addr)))
-            {
-               if (ISDIM(FOPADR(nextadr- INSTRUCTION_LENGTH*2)))
-                  {
-                     instr	=  (unsigned)(adj_read_memory_integer(CORADR(addr
-                                                       -(INSTRUCTION_LENGTH*2))));
-                     brk->mode	= DIM;
-                  } else	{
-                     instr	=  (unsigned)(adj_read_memory_integer(addr-INSTRUCTION_LENGTH));
-                     brk->mode	= RIM;
-                  }
-            } else {
-               if (ISDIM(addr-INSTRUCTION_LENGTH))
-                  {
-                     instr	=  (unsigned)(adj_read_memory_integer(addr-INSTRUCTION_LENGTH));
-                     brk->mode	= BIM;
-                  } else	{
-                     instr	=  (unsigned)(adj_read_memory_integer (addr-INSTRUCTION_LENGTH));
-                     brk->mode	= SIM;
-                  }
-            }
-         
-         /* examine the PREVIOUS instruction to determine if we are in a branch delay
-            slot.  If we are, dont set a break here -- set it on the previous instruction.
-            This code also accounts for dual instruction mode */
-         if ((instr & 0xE0000000) == 0x60000000 &&
-             (instr & 0xF8000000) != 0x60000000)		/* not pfld.y  */
-            {
-               adjust++;
-               /* br    /call */
-               /* bc	 /bnc  */
-               /* bc.t	 /bnc.t*/
-               if ((instr & 0xF8000000) == 0x68000000) /* br or call */
-                  BTDEBUG(" Breakpoint adjusted to avoid br/call delay slot and multiple breakpoints\n");
-               
-               if ((instr & 0xF4000000) == 0x74000000) /* bc.t or bnc.t */
-                  BTDEBUG(" Breakpoint adjusted to avoid bc.t/bnc.t delay slot and"
-                          "multiple breakpoints\n");
-
-               /* it IS really OK to set a break on the instruction AFTER the conditional branch
-                  -- it DOESN't have a delay slot */
-               if ((instr & 0xF4000000) == 0x70000000) /* bc / bnc */
-                  adjust = 0; 
-            } else if
-               ((instr & 0xFC00003F) == 0x4C000002 ||	/* bri/  calli */
-                (instr & 0xFC000000) == 0x40000000)	
-                  {
-                     adjust++;
-                     BTDEBUG(" Breakpoint adjusted to avoid calli/bri delay slot and"
-                             " multiple breakpoints\n");
-                  } else if
-                     ((instr & 0xF0000000) == 0x50000000) /* bte - btne */
-                        {
-                           /* it's OK to set a break here -- we are NOT in aa branch delay slot */
-                           /*
-                           adjust++;
-                           printf(" Breakpoint adjusted to avoid bte/btne multiple breakpoints\n");
-                           */
-                           adjust = 0;
-                        } else if
-                           ((instr & 0xFC000000) == 0xB4000000)
-                              {
-                                 adjust++;
-                                 BTDEBUG(" Breakpoint adjusted to avoid bla delay slot and"
-                                         " multiple breakpoints\n");
-                              }
-         if (adjust != 0)
-            {
-               if (brk->mode == DIM)
-                  {
-                     nextadr -= INSTRUCTION_LENGTH*2;
-                     nextadr = CORADR(nextadr); 
-                  }
-               else
-                  nextadr -= INSTRUCTION_LENGTH;
-            }
-         
-      }
-   
-   if (brk->mode == RIM) 
-      brk->mode = DIM;
-   if (brk->mode == BIM) 
-      brk->mode = SIM;
-   
-   if (nextadr != NULL)
-      {
-         if (brk->mode == DIM)
-            {
-               brk->act_addr[0] = CORADR(nextadr);
-               brk->act_addr[1] = FOPADR(nextadr);
-            } else	{
-               brk->act_addr[0] = nextadr;
-               brk->act_addr[1] = 0;
-            }
-      }
-   
-   if (prevadr != NULL)
-      {
-         brk->address1 = prevadr;
-         if (brk->mode == DIM)
-            {
-               brk->act_addr[2] = CORADR(prevadr);
-               brk->act_addr[3] = FOPADR(prevadr);
-            } else	{
-               brk->act_addr[2] = prevadr;
-               brk->act_addr[3] = 0;
-            }
-      } else	{
-         brk->act_addr[2] = brk->act_addr[3] = 0;
-      }
-   return val;
-}
-
-/* This routine checks to see if r1 has been stored into the frame between
-   the addresses prologue_start and prologue_end. Recognize stores of r1 
-   relative to both the sp and fp registers. */
-static int has_stored_r1(CORE_ADDR prologue_start, CORE_ADDR prologue_end)
-{
-   CORE_ADDR instr;
-   CORE_ADDR addr;
-   
-   BTDEBUG("has_stored_r1, prologue_start %x, prologue_end %x\n",
-           prologue_start, prologue_end);
-
-   for (addr = prologue_start; addr <= prologue_end;  addr += INSTRUCTION_LENGTH)
-      {
-   
-         instr =  (unsigned)(adj_read_memory_integer (addr));
-         if   ((instr & 0xFFE0F801) == 0x1C400801 /* st.l r1,X(sp) */
-            || (instr & 0xFFE0F801) == 0x1C600801) /* st.l r1,X(fp) */
-            return (1);
-      }
-   return 0;
-}
-/* This is used when GDB is exiting.  It gives less chance of error.*/
-
-
-/* Simulate single-step ptrace call for sun4.  Code written by Gary
-   Beihl (beihl@mcc.com).  */
-/* Modified for i860 by Jim Hanko (hanko@orc.olivetti.com) */
-
-
-static struct breakpoint brk;
-typedef char binsn_quantum[sizeof break_insn];
-
-/* Non-zero if we just simulated a single-step ptrace call.  This is
-   needed because we cannot remove the breakpoints in the inferior
-   process until after the `wait' in `wait_for_inferior'.  Used for
-   i860. */
-
-int one_stepped;
-
-/* single_step() is called just before we want to resume the inferior,
-   if we want to single-step it but there is no hardware or kernel single-step
-   support.  We find all the possible targets of the coming instruction and 
-   breakpoint them.
-
-   single_step is also called just after the inferior stops.  If we had
-   set up a simulated single-step, we undo our damage.  */
-/* Note that we don't need the parameter, but it's dictated as part of the interface. */
-void
-   single_step (signal)
-int signal;
-{
-   CORE_ADDR pc;
-   branch_type place_brk();
-   int *shadow0, *shadow1, *shadow2, *shadow3;
-
-   shadow0 = (int *) &brk.shadow_contents[0];
-   shadow1 = (int *) &brk.shadow_contents[4];
-   shadow2 = (int *) &brk.shadow_contents[8];
-   shadow3 = (int *) &brk.shadow_contents[12];
-   pc = read_register (PC_REGNUM);
-   
-   if (!one_stepped)
-      {
-         brk.address = pc;
-         place_brk (pc, SINGLE_STEP_MODE, &brk);
-	 *shadow0 = *shadow1 = *shadow2 = *shadow3 = 0;
-         
-         if (brk.mode == DIM)
-            {
-               if (btdebug != 0)
-                  {
-                     btdebug_message(" DIM1 -> %x : ", brk.act_addr[3]);
-                     print_insn( brk.act_addr[3], stderr);
-                     btdebug_message("\t -|-  %x : ", brk.act_addr[2]);
-                     print_insn( brk.act_addr[2], stderr);
-                     btdebug_message("\n");
-                  }
-               if (( brk.address1 != NULL))
-                  { 
-                     adj_read_memory  (brk.act_addr[2], shadow2,
-                                       INSTRUCTION_LENGTH);
-                     adj_write_memory (brk.act_addr[2], break_insn, INSTRUCTION_LENGTH);
-                     adj_read_memory  (brk.act_addr[3], shadow3,
-                                       INSTRUCTION_LENGTH);
-                     /*		adj_write_memory (brk.act_addr[3], float_insn,
-                              INSTRUCTION_LENGTH); */
-                     
-                  }
-               if (btdebug != 0)
-                  {
-                     if ( brk.address1 != 0)
-                        btdebug_message(" DIM2 ->");
-                     else
-                        btdebug_message(" DIM1 ->");
-               
-                     btdebug_message(" %x : ", brk.act_addr[1]);
-                     print_insn( brk.act_addr[1], stderr);
-                     btdebug_message("\t -|-  %x : ", brk.act_addr[0]);
-                     print_insn( brk.act_addr[0], stderr);
-                     btdebug_message("\n");
-                  }
-               
-               adj_read_memory  (brk.act_addr[0], shadow0,
-                                 INSTRUCTION_LENGTH);
-               adj_write_memory (brk.act_addr[0], break_insn,
-                                 INSTRUCTION_LENGTH);
-               adj_read_memory  (brk.act_addr[1], shadow1,
-                                 INSTRUCTION_LENGTH);
-               /*		adj_write_memory (brk.act_addr[1], float_insn,
-                                 INSTRUCTION_LENGTH); */
-               
-            } 
-         else	{
-            if (brk.address1 != NULL)
-               {
-                  if (btdebug)
-                     {
-                        btdebug_message(" SIM1 ->");
-                        btdebug_message(" %x : ", brk.act_addr[2]);
-                        print_insn( brk.act_addr[2], stderr);
-                        btdebug_message("\n");
-                     }
-                  adj_read_memory  (brk.act_addr[2], shadow2,
-                                    INSTRUCTION_LENGTH);
-                  adj_write_memory (brk.act_addr[2], break_insn, INSTRUCTION_LENGTH);
-               }
-            if (btdebug)
-               {
-                  if ( brk.address1 != NULL)
-                     btdebug_message(" SIM2 ->");
-                  else
-                     btdebug_message(" SIM1 ->");
-                  
-                  btdebug_message(" %x : ", brk.act_addr[0]);
-                  print_insn( brk.act_addr[0], stderr);
-                  btdebug_message("\n");
-               }
-            adj_read_memory  (brk.act_addr[0], shadow0,
-                              INSTRUCTION_LENGTH);
-            adj_write_memory (brk.act_addr[0], break_insn,INSTRUCTION_LENGTH);
-         }
-         
-         /* Let it go */
-         one_stepped = 1;
-         return;
-      }
-   else
-      {
-         /* Remove breakpoints */
-         if (brk.mode == DIM)
-            {
-               adj_write_memory (brk.act_addr[0], shadow0,
-                                 INSTRUCTION_LENGTH);
-               adj_write_memory (brk.act_addr[1], shadow1,
-                                 INSTRUCTION_LENGTH);
-            } else	{
-               adj_write_memory (brk.act_addr[0], shadow0,
-                                 INSTRUCTION_LENGTH);
-            }
-         
-         if (brk.address1 != NULL)
-            {
-               if (brk.mode == DIM)
-                  {
-                     adj_write_memory (brk.act_addr[2], shadow2,
-                                 INSTRUCTION_LENGTH);
-                     adj_write_memory (brk.act_addr[3], shadow3,
-                                 INSTRUCTION_LENGTH);
-                  } else	{
-                     adj_write_memory (brk.act_addr[2], shadow2,
-                                 INSTRUCTION_LENGTH);
-                  }
-            }
-         one_stepped = 0;
-      }
-}
-
-
-
-/* Written for i860 by Jim Hanko (hanko@orc.olivetti.com) */
-/* This code was based on SPARC code written by Gary Beihl (beihl@mcc.com),
-   by Michael Tiemann (tiemann@corto.inria.fr).  */
-/* This routine returns the first memory address following the prologue code,
-   if there is a prologue. */
-
-struct command_line *get_breakpoint_commands ();
-
-CORE_ADDR 
-   skip_prologue (pc)
-CORE_ADDR pc;
-{
-   CORE_ADDR instr;
-   int regno;
-   
-   instr =  (unsigned)(adj_read_memory_integer (pc));
-   
-   /* Recognize "addu|adds -X,sp,sp" insn. */
-   if ((instr & 0xEFFF0000) == 0x84420000)
-      {
-         pc += INSTRUCTION_LENGTH;
-         instr =  (unsigned)(adj_read_memory_integer (pc));
-      }
-   else
-      return(pc);					/* No frame! */
-   
-   /* Recognize store of return addr and frame pointer into frame */
-   for (; ;)
-      {
-         if ((instr & 0xFFE0F801) == 0x1C400801 ||  /* st.l r1,X(sp) */
-             (instr & 0xFFE0F801) == 0x1C401801)    /* st.l fp,X(sp) */
-            {
-               pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else
-            break;
-      }
-   
-   /* Recognize "addu|adds X,sp,fp" insn. */
-   if ((instr & 0xEFFF0000) == 0x84430000)
-      {
-         pc += INSTRUCTION_LENGTH;
-         instr =  (unsigned)(adj_read_memory_integer (pc));
-      }
-   
-   /* Now recognize stores into the frame from the registers. */
-   
-   for (; ;)
-      {
-         if ((instr & 0xFFA00003) == 0x1C200001 ||	/* st.l rn,X(fp|sp) */
-             (instr & 0xFFA00001) == 0x4C200000)	/* fst.y fn,X(fp|sp) */
-            {
-               regno = (instr >> 11) & 0x1f;
-               if (regno == 0)			/* source reg == 0? quit */
-                  break;
-               pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else
-            break;
-      }
-   
-   return(pc);
-}
-
-#if 0
-/* This routine is uncalled.  Remove it sometime. */
-/* Set *nextpc to branch target if we find a branch.  If it is not a branch, 
-   set it to the next instruction (addr + 4) */
-
-
-branch_type
-   isabranch (addr,  nextpc)
-CORE_ADDR addr, *nextpc;
-{
-   CORE_ADDR instr;
-   branch_type val = not_branch;
-   long offset; /* Must be signed for sign-extend */
-   
-   BTDEBUG(" isabranch\n");
-   *nextpc = addr;
-   instr =  (unsigned)(adj_read_memory_integer (addr));
-   
-   if ((instr & 0xE0000000) == 0x60000000 &&		/* CTRL format */
-       (instr & 0xF8000000) != 0x60000000)		/* not pfld.y  */
-      {
-         if ((instr & 0xF8000000) == 0x68000000)		/* br or call */
-            val = uncond_d;
-         else if ((instr & 0xF4000000) == 0x74000000)	/* bc.t or bnc.t */
-            val = cond_d;
-         else if ((instr & 0xF4000000) == 0x70000000)	/* bc or bnc */
-            val = cond;
-         
-         offset = (instr & 0x03ffffff);
-         if (offset & 0x02000000)	/* sign extend? */
-            offset |= 0xFC000000;
-         *nextpc = addr + 4 + (offset << 2);
-      }
-   else if ((instr & 0xFC00003F) == 0x4C000002 ||	/* calli */
-            (instr & 0xFC000000) == 0x40000000)		/* bri */
-      {
-         val = uncond_d;
-         offset = ((instr & 0x0000F800) >> 11);
-         *nextpc = (read_register(offset) & 0xFFFFFFFC);
-      }
-   else if ((instr & 0xF0000000) == 0x50000000)		/* bte or btne */
-      {
-         val = cond;
-         
-         offset = SIGN_EXT16(((instr & 0x001F0000) >> 5)  | (instr & 0x000007FF));
-         *nextpc = addr + 4 + (offset << 2);
-      }
-   else if ((instr & 0xFC000000) == 0xB4000000)         /* bla */
-      {
-         val = cond_d;
-         
-         offset = SIGN_EXT16(((instr & 0x001F0000) >> 5)  | (instr & 0x000007FF));
-         *nextpc = addr + 4 + (offset << 2);
-      }
-   
-   BTDEBUG(" Final addr - %x\n", *nextpc);
-   /*BTDEBUG("isabranch ret: %d\n",val); */
-   return val;
-}
-#endif
-
-/* set in call_function() [valops.c] to the address of the "call dummy" code
-   so dummy frames can be easily recognized; also used in wait_for_inferior() 
-   [infrun.c]. When not used, it points into the ABI's 'reserved area' */
-
-CORE_ADDR call_dummy_set = 0;	/* true if dummy call being done */
-CORE_ADDR call_dummy_start;	/* address of call dummy code */
-
-/* this routine routine gets the values of the registers stored in the frame
-   and stores their values into the frame_saved_regs structure. */
-
-void 
-frame_find_saved_regs(frame_info, frame_saved_regs)
-     struct frame_info *frame_info;
-     struct frame_saved_regs *frame_saved_regs;
-{
-   register CORE_ADDR pc;
-   CORE_ADDR instr;
-   long offset, spdelta = 0;
-   int i, size, reg;
-   int r1_off = -1, fp_off = -1;
-   int framesize;
-   
-   bzero (frame_saved_regs, sizeof(*frame_saved_regs));
-   
-   if (call_dummy_set && frame_info->pc >= call_dummy_start && 
-       frame_info->pc <= call_dummy_start + CALL_DUMMY_LENGTH)
-      {
-         /* DUMMY frame - all registers stored in order at fp; old sp is
-            at fp + NUM_REGS*4 */
-         
-         for (i = 1; i < NUM_REGS; i++) /* skip reg 0 */
-            /* the register numbers used in the instruction and the ones used to index
-            the regs array are not the same -- compensate */
-            frame_saved_regs->regs[i+R0] = frame_info->frame + i*REGISTER_LENGTH;
-         
-         call_dummy_set = 0;
-         return;
-      }
-   
-   pc = get_pc_function_start (frame_info->pc); 
-   if (pc == NULL)
-     pc = find_entry_start (frame_info->pc);
-
-   if (pc != NULL)
-      {
-         instr =  (unsigned)(adj_read_memory_integer (pc));
-         /* Recognize "addu|adds -X,sp,sp" insn. */
-         if ((instr & 0xEFFF0000) == 0x84420000)
-            {
-               framesize = -SIGN_EXT16(instr & 0x0000FFFF);
-               pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-      }
-   else
-      goto punt;					/* No frame! */
-   
-   /* Recognize store of return addr and frame pointer into frame */
-   for (; ;)
-      {
-         if ((instr & 0xFFE0F801) == 0x1C400801)  /* st.l r1,X(sp) */
-            {
-               r1_off = SIGN_EXT16(((instr&0x001F0000) >> 5) | (instr&0x000007FE));
-               pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else if ((instr & 0xFFE0F801) == 0x1C401801)    /* st.l fp,X(sp) */
-            {
-               fp_off = SIGN_EXT16(((instr&0x001F0000) >> 5) | (instr&0x000007FE));
-               pc += INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else
-            break;
-      }
-   
-   /* Recognize "addu|adds X,sp,fp" insn. */
-   if ((instr & 0xEFFF0000) == 0x84430000)
-      {
-         spdelta = SIGN_EXT16(instr & 0x0000FFFF);
-         pc += INSTRUCTION_LENGTH;
-         instr =  (unsigned)(adj_read_memory_integer (pc));
-      }
-   
-   /* Now recognize stores into the frame from the registers. */
-   
-   for (; ;)
-      {
-         if ((instr & 0xFFC00003) == 0x1C400001)	/* st.l rn,X(fp|sp) */
-            {
-               offset = SIGN_EXT16(((instr&0x001F0000) >> 5) | (instr&0x000007FE));
-               reg = (instr >> 11) & 0x1F;
-               if (reg == 0)
-                  break;
-               if ((instr & 0x00200000) == 0)	/* was this using sp? */
-                  if (spdelta != 0)			/* and we know sp-fp delta */
-                     offset -= spdelta;		/* if so, adjust the offset */
-                  else
-                     break;				/* if not, give up */
-               
-               
-               /* Handle the case where the return address is stored after the fp 
-                  is adjusted */
-               
-               if (reg == 1)
-                  frame_saved_regs->regs[PC_REGNUM] = frame_info->frame + offset;
-               else
-                  frame_saved_regs->regs[reg+R0] = frame_info->frame + offset;
-               
-               pc +=  INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else if ((instr & 0xFFC00001) == 0x2C400000) /* fst.y fn,X(fp|sp) */
-            {
-               /*
-                * The number of words in a floating store based on 3 LSB of instr
-                */
-               static int fst_sizes[] = {2, 0, 1, 0, 4, 0, 1, 0};
-               
-               size = fst_sizes[instr & 7];
-               reg = ((instr >> 16) & 0x1F) + FP0_REGNUM;
-               if (reg == 0)
-                  break;
-               
-               if (size > 1)					/* align the offset */
-                  offset = SIGN_EXT16(instr & 0x0000FFF8);	/* drop 3 bits */
-               else
-                  offset = SIGN_EXT16(instr & 0x0000FFFC);	/* drop 2 bits */
-               
-               if ((instr & 0x00200000) == 0)	/* was this using sp? */
-                  if (spdelta != 0)			/* and we know sp-fp delta */
-                     offset -= spdelta;		/* if so, adjust the offset */
-                  else
-                     break;				/* if not, give up */
-               
-               for (i = 0; i < size; i++)
-                  {
-                     frame_saved_regs->regs[reg] = frame_info->frame + offset;
-                     
-                     offset +=  REGISTER_LENGTH;
-                     reg++;
-                  }
-               
-               pc +=  INSTRUCTION_LENGTH;
-               instr =  (unsigned)(adj_read_memory_integer (pc));
-            }
-         else
-            break;
-      }
-   
-   punt: ;
-   if (framesize != 0 && spdelta != 0)
-      frame_saved_regs->regs[SP_REGNUM] = frame_info->frame+(framesize-spdelta);
-   else
-      frame_saved_regs->regs[SP_REGNUM] = frame_info->frame + 8;
-   
-   if ((spdelta != 0) && fp_off != -1)
-      frame_saved_regs->regs[FP_REGNUM] = frame_info->frame - spdelta + fp_off;
-   else
-      frame_saved_regs->regs[FP_REGNUM] = frame_info->frame;
-   
-   if ((spdelta != 0) && r1_off != -1)
-      frame_saved_regs->regs[PC_REGNUM] = frame_info->frame - spdelta + r1_off;
-   else
-      frame_saved_regs->regs[PC_REGNUM] = frame_info->frame + 4;
-}
-
-
-/* get the frame pointer of the caller.
- * note that only routines that have been compiled with
- * -g have full (XX)fp style stack frames
- * if we are not returning to a non -g caller then we
- * return the sp at entry to us as it is the caller's
- * frame reference.
- */
-
-frame_chain(thisframe)
-     FRAME thisframe;
-{
-   CORE_ADDR fp, pc;
-   CORE_ADDR func_start;
-   CORE_ADDR instr;
-   int offset;
-   CORE_ADDR thisfp = thisframe->frame;
-   struct frame_saved_regs fsr;   
-   CORE_ADDR thissp;
-           
-      /* get the frame pointer actually sp for  a non -g
-    * for the routine that called us routine 
-    */
-   
-   BTDEBUG("FRAME_CHAIN(%x)\n",thisframe);
-   
-   if ( !read_memory_integer (thisframe->frame,sizeof(long)) )
-      {
-         return (0);
-      }
-   
-   if( ! g_routine(thisframe->pc) ){
-      thissp = get_saved_basereg (thisframe, SP_REGNUM);
-
-      BTDEBUG( "non g at %x\n",thisframe->pc);
-      caller_pc(thisframe->pc, thissp, thisfp,&pc,&fp, 1);
-      BTDEBUG("caller_pc returned %x %x \n",pc,fp);
-      return(fp);
-      
-   }/* else a -g routine */
-   
-   
-   fp = read_memory_integer (thisfp, sizeof(long));
-   
-   if (fp < thisfp || fp > (unsigned) STACK_END_ADDR)
-      {
-         /* handle the Metaware-type pseudo-frame */
-         
-         func_start = get_pc_function_start(thisframe->pc);
-	 if (func_start == NULL)
-	   func_start = find_entry_start (thisframe->pc);
-
-         if (func_start != NULL)
-            {
-               
-               instr =  (unsigned)(adj_read_memory_integer (func_start));
-               /* Recognize "addu|adds -X,sp,sp" insn. */
-               if ((instr & 0xEFFF0000) == 0x84420000)
-                  offset = SIGN_EXT16(instr & 0x0000FFFF);
-               
-            }
-         
-         fp = 0;
-         if (offset < 0)
-            fp = thisfp - offset;
-      }
-   BTDEBUG("frame_chain returned %d\n",fp);
-   return(fp);
-}
-
-/* This function returns 1 if there is no stored r1, 0 otherwise.
-   The function returns 1 if the pc is in a function prologue,
-   or the function prologue didn't save the return pointer in
-   the stack frame,  0 otherwise */
-
-int no_stored_rp(CORE_ADDR pc)
-{
-   CORE_ADDR func_start, prologue_end;
-   
-   func_start = get_pc_function_start(pc);
-   if (func_start == NULL)
-     func_start = find_entry_start (pc);
-
-   if (func_start != NULL)
-      {
-         prologue_end = func_start;
-         SKIP_PROLOGUE(prologue_end);
-         if ( (pc >= func_start) && (pc <= prologue_end))
-            {
-               BTDEBUG("no_stored_rp: pc %x is in prologue \n",pc);
-               return 1;
-            }
-         /* otherwise, see if the entry sequence stored the return pointer.
-            If it didn't, return 1 */
-         /* Some procedures , at least, store the return pointer AFTER 
-            the prologue sequence, so check for stores from function start to
-            present pc value. */
-         if (!has_stored_r1(func_start, pc))
-            {  
-               BTDEBUG("no_stored_rp, for pc %x, prologue didn't store r1\n",pc);
-               return 1;
-            }
-      }
-   BTDEBUG("no_stored_rp for pc %x return pointer was stored \n", pc);
-
-   return 0; 
-}
-
-/* get the PC of the caller */
-CORE_ADDR frame_saved_pc(frame_struct)
-FRAME frame_struct;
-{
-     CORE_ADDR frame;
-     CORE_ADDR pc;
-     CORE_ADDR pc1;
-     CORE_ADDR sp ;
-     CORE_ADDR fp;
-     struct frame_saved_regs fsr;                                                 
-     
-     frame = frame_struct->frame;
-     pc = frame_struct->pc;
-     
-     
-     BTDEBUG("frame_saved_pc input: frame %x, pc %x",
-           frame, pc);
-
-     /* First see if this is the current frame. If it is, return the value in r1,
-        as it may not have been stored */
-
-     fp = read_register(FP_REGNUM);
-
-     /* check to see if we are in an entry sequence, where the return pointer has not yet been stored */
-     if (fp == frame &&  no_stored_rp(pc))
-        {
-           pc = read_register(RP_REGNUM);
-           frame_struct->rp = pc;
-        }
-     else if( ! g_routine(pc) )
-        {
-           sp = get_saved_basereg (frame_struct, SP_REGNUM);
-
-           caller_pc(pc,sp,frame_struct->frame, &pc,&frame, 0);
-        }
-     else 
-        {
-           
-           pc = read_memory_integer (frame + 4, sizeof(long)); 
-   
-           if (inside_entry_file(pc))
-              {
-                 
-                 BTDEBUG("pc %x outside entry file \n",pc);
-
-                 pc1 = read_memory_integer (frame, sizeof(long));
-               
-                 if (!inside_entry_file(pc1))
-                    pc = pc1;
-                 else
-                    pc = 0;
-              }
-        } 
-     BTDEBUG(" returning pc %x\n", CLEAN_PC(pc));
-     return(CLEAN_PC(pc));
-
-  }
-
-/* Pass arguments to a function in the inferior process - ABI compliant
-   Modified by Peggy Fieland (Margaret_Fieland@vos.stratus.com) to account
-   for newer ABI conventions. Note that now, unfortunately, we MUST KNOW
-   if we expect a float or a double.  For now, we will assume that the
-   caller of this routine has the types of these arguments correct.... 
-   NOTE THAT THIS ROUTINE DOES NO ARGUMENT COERCION -- it's all in the
-   caller.
-   Modified by Peggy Fieland to handle memory argument lists.
-   */
-
-#define IS_EVEN_REG(fl) (((fl - FP0_REGNUM)%2) == 0)
-CORE_ADDR 
-pass_function_arguments(args, nargs, struct_return, struct_addr, sp)
-     value *args;
-     int nargs;
-     int struct_return;
-     CORE_ADDR struct_addr;
-     CORE_ADDR sp;
-{
-   int ireg = (struct_return) ? R17 : R16;
-   int freg = F8;
-   int i;
-   struct type *type;
-   value arg;
-   signed long tmp;
-   unsigned long ul_tmp;
-   signed short s_tmp;
-   unsigned short us_tmp;
-   signed char c_tmp;
-   unsigned char uc_tmp;
-   CORE_ADDR arg_ptr;
-   int len;
-
-   if (struct_return)
-      {
-         write_register(R16, struct_addr);
-      }
-
-   arg_ptr = sp; /* Space was allocated for memory argument list in i860_arg_coerce */
-
-   /* Loop through the arguments, putting the values in a register or memory as appropriate. */
-   
-   for (i = 0; i < nargs; i++) 
-      {
-         arg = args[i];
-         type = VALUE_TYPE(arg);
-         len = TYPE_LENGTH(type);
-         if (type == builtin_type_double) 
-            {
-               /* see ABI . Note freg MUST BE INCREMENTED even if arg goes into the
-                  memory argument list for this code to work correctly for subsequent
-                  arguments. */
-               if (!IS_EVEN_REG(freg))
-                  freg += 1;
-               /* see if argument can be put in a register, or whether it must go
-                  into the memory argument list */
-               if (freg < F8 + NUM_FLOAT_ARG_REGS)
-                  {
-                     /* It can go in a register */
-                     bcopy(VALUE_CONTENTS(arg), &tmp, sizeof(double));
-                     write_register_bytes(REGISTER_BYTE(freg), (char *) &tmp, TYPE_LENGTH(type));
-                     freg += 2;
-                  }
-               else
-                  {
-                     /* It goes into memory argument list */
-                     arg_ptr = ALIGN_ARG( arg_ptr, sizeof(double));
-                     write_memory (arg_ptr, VALUE_CONTENTS (arg), len);
-                     arg_ptr += len;
-                  }
-                  
-            }
-         else if (type == builtin_type_float)
-            {
-               if (freg < F8 + NUM_FLOAT_ARG_REGS)
-                  {
-                     /* It can go in a register */
-                     bcopy(VALUE_CONTENTS(arg), &tmp, sizeof(long));
-                     write_register_bytes (REGISTER_BYTE(freg), (char *) &tmp, TYPE_LENGTH(type));
-                     freg++;
-                  }
-               else
-                  { 
-                     /* It goes into the memory argument list */
-                     arg_ptr = ALIGN_ARG(arg_ptr, sizeof(float));
-                     write_memory (arg_ptr, VALUE_CONTENTS (arg), len);
-                     arg_ptr += len;
-                  }
-            }
-         else
-            {
-               /* All structs are passed by value, and hence they all go into the memory
-                  argument list (see ABI); otherwise, as above, see if we have run
-                  out of registers */
-               
-               /* Cast value correctly so we can load it into a register or into the
-                  memory argument list  -- see ABI */
-               if (TYPE_LENGTH(type)    < sizeof(long))
-                  {
-                     if (TYPE_FLAGS(type) & TYPE_FLAG_UNSIGNED)
-                        arg = value_cast(builtin_type_unsigned_int, arg);
-                     else 
-                        arg = value_cast (builtin_type_int, arg);
-                     type = VALUE_TYPE(arg);
-                     len = TYPE_LENGTH(type);
-                  }
-               
-               if ((TYPE_CODE(type) == TYPE_CODE_STRUCT) || (ireg >= R16 + NUM_INT_ARG_REGS))
-                  {
-                     /* It goes into the memory argument list. Minimum alignment requirements
-                        are on a 4-byte boundary */
-                     
-                     if  ((TYPE_CODE(type) == TYPE_CODE_INT) ||
-                          (TYPE_CODE(type) == TYPE_CODE_ENUM) ||
-                          (TYPE_CODE(type) == TYPE_CODE_CHAR) ||
-                          (TYPE_CODE(type) == TYPE_CODE_BOOL))
-                        arg_ptr = ALIGN_ARG(arg_ptr, len);
-                     else
-                        arg_ptr = ALIGN_ARG (arg_ptr, sizeof(long)); /* align on 4-byte boundary */
-                     write_memory (arg_ptr, VALUE_CONTENTS (arg), len);
-                     arg_ptr += len;
-                  }
-               else
-                  {
-
-                     bcopy(VALUE_CONTENTS(arg), &tmp, sizeof(long));
-                     write_register(ireg, tmp);
-                     ireg++;
-                  }
-                  
-            }
-      }
-   
-   
-   return (sp);
-
-}
-
-
-#define SPACES		"       "
-#define P_SPACES	"   "
-#define BYTE 0xff
-
-int screen_lines=24;
-
-char *spec_reg[] = {
-   "fsr", "db", "dirbase", "fir", "psr", "epsr",
-};
-
-char *doro_reg[] = {
-   "scp", "cbsp", "pt_cs", "intmsk", "intack",
-};
-#define NREGS 32
-
-
-get_reg(regno)
-{
-   char raw_buffer[32];
-   int addr;
-   int virtual_buffer;
-
-   /* NOTE that only  integer and floating point registers can be relative to a frame */
-
-   if ((regno >= R0) && (regno <= F31)) /* user register */
-      read_relative_register_raw_bytes (regno, raw_buffer);
-   else
-      bcopy (&registers[regno << 2], raw_buffer, sizeof (long));
-
-   REGISTER_CONVERT_TO_VIRTUAL (addr, raw_buffer, &virtual_buffer);
-   return(virtual_buffer);
-}
-
-
-#if 0
-/* This routine is uncalled.  Remove it sometime. */
-
-/*
- ** Figure out whether we are in a delayed slot and if so then take necessary
- **	action to resume properly - remember trap pre-empts instruction
- */
-int
-   wasabranch (addr, nextpc, ss)
-CORE_ADDR addr, *nextpc;
-int ss;
-{
-   CORE_ADDR nextadr, instr;
-   int val = not_branch;
-   long offset; /* Must be signed for sign-extend */
-   
-   if (ss)
-      {
-         if (INDIM)
-            {
-			nextadr = CORADR((int)(addr +  INSTRUCTION_LENGTH*2));
-  			instr	=  (unsigned)(adj_read_memory_integer (CORADR(addr)));
-            }
-         else
-            {
-			nextadr = addr +  INSTRUCTION_LENGTH;
-  			instr	=  (unsigned)(adj_read_memory_integer (addr));
-            }
-      } else	{
-         if (ISDIM(addr))
-            {
-			nextadr = CORADR(addr);
-  			instr	=  (unsigned)(adj_read_memory_integer (nextadr));
-            }
-         else
-            {
-			nextadr = addr;
-  			instr	=  (unsigned)(adj_read_memory_integer (addr));
-            }
-      }
-   
-   
-   if ((instr & 0xE0000000) == 0x60000000 &&		/* CTRL format */
-       (instr & 0xF8000000) != 0x60000000)		/* not pfld.y  */
-      {
-         if ((instr & 0xF8000000) == 0x68000000)		/* br or call */
-            val = uncond_d;
-         else if ((instr & 0xF4000000) == 0x74000000)	/* bc.t or bnc.t */
-            val = cond_d;
-         else if ((instr & 0xF4000000) == 0x70000000)	/* bc or bnc */
-            val = cond;
-         
-         offset = (instr & 0x03ffffff);
-         if (offset & 0x02000000)	/* sign extend? */
-            offset |= 0xFC000000;
-         nextadr += (offset << 2);
-      }
-   else if ((instr & 0xFC00003F) == 0x4C000002 ||	/* calli */
-            (instr & 0xFC000000) == 0x40000000)		/* bri */
-      {
-         if (ss)
-            {
-               val	= uncond_d;
-      		offset	= ((instr & 0x0000F800) >> 11);
-      		nextadr	= (read_register(offset) & 0xFFFFFFFC);
-            } else	{
-               val	= uncond_d;
-            }
-      }
-   else if ((instr & 0xF0000000) == 0x50000000)		/* bte or btne */
-      {
-         val = cond;
-         
-         offset = SIGN_EXT16(((instr & 0x001F0000) >> 5)  | (instr & 0x000007FF));
-         nextadr += (offset << 2);
-      }
-   else if ((instr & 0xFC000000) == 0xB4000000)         /* bla */
-      {
-         val = cond_d;
-         
-         offset = SIGN_EXT16(((instr & 0x001F0000) >> 5)  | (instr & 0x000007FF));
-         nextadr += (offset << 2);
-      }
-   
-   *nextpc = nextadr;
-   return val;
-}
-#endif
-
-
-/* i860-specific routine to print the register set. Note that we ALWAYS print information
-   on the floating point registers, so we ignore the parameter fpregs. 
-   NOTE also  that only  integer and floating point registers can be relative to a frame --
-   see subroutine get_reg (above ) */
-
-void i860_do_registers_info(regnum,fpregs)
-     int regnum;
-     int fpregs;
-{
-   register int i;
-   unsigned int val;
-   unsigned int j,k;
-   
-   
-   if (regnum == -1)
-      printf_filtered (
-                       "Register       Contents (relative to selected stack frame)\n\n");
-   
-   if (regnum != -1) /* print one register */
-      {
-         val = get_reg(regnum);
-         printf("%-4s 0x%08x\t", reg_names[regnum], val);
-         printf("\n\t"); fflush(stdout);
-      }
-   else	/* print all registers */
-      {
-         
-         printf("\n Control/Status Registers :- \n\t");
-         for (j=0; j<=DB; j++)
-            {
-               val = get_reg(j);
-               printf("%-4s 0x%08x\t", reg_names[j], val);
-            }
-         printf("\n\t"); fflush(stdout);
-         
-         /* EPSR */
-         val = get_reg(EPSR);
-         printf("%-4s 0x%08x\t", reg_names[EPSR], val);
-         
-         /* FSR */
-         val = get_reg(FSR);
-         printf("%-4s 0x%08x\t", reg_names[FSR], val);
-         
-         /* CCR */
-         val = get_reg(CCR);
-         printf("%-4s 0x%08x\t", reg_names[CCR], val);
-         /* BEAR*/
-         val = get_reg(BEAR);
-         printf("%-4s 0x%08x\t", reg_names[BEAR], val);
-         
-         
-#ifdef JIM_ADD_PRIV
-         for (j=P0; j<=P3; j++)
-            {
-               val = get_reg(j);
-               printf("%-4s 0x%08x\t", reg_names[j], val);
-            }
-#endif
-         
-         printf("\n Integer Registers :- \n\t");
-         for (j=R0; j<=R31; j++)
-            {
-               if (j != IREGS  && (j % REGISTER_LENGTH == 0)) 
-                  {
-                     printf("\n\t");  fflush(stdout);
-                  }
-               val = get_reg(j);
-               printf("%-4s 0x%08x\t", reg_names[j], val);
-            }
-         
-         printf("\n Floating Registers :- \n\t");
-         for (j=F0; j<=F31; j++)
-            {
-               if (j != FREGS && (j % REGISTER_LENGTH == 0)) 
-                  {
-                     printf("\n\t");  fflush(stdout);
-                  }
-               val = get_reg(j);
-               printf("%-4s 0x%08x\t", reg_names[j], val);
-            }
-         
-         printf("\n Special Registers :- \n\t");
-         for (j=SPC_KI; j<=SPC_MERGE; j+=2)
-            {
-               unsigned int valh;
-               if (j == SPC_T)
-                  {
-                     printf("\n\t");  fflush(stdout);
-                  }
-               val = get_reg(j);
-               valh = get_reg(j+1);
-               printf("%-6s 0x%08x %08x\t", reg_names[j], val,valh);
-            }
-         
-         printf("\n Graphics Pipeline :- \n");
-         {
-            unsigned int valh;
-            j = PSV_I1;
-            val = get_reg(j);
-            valh = get_reg(j+1);
-            printf("\t\t\t%-8s 0x%08x %08x \n", reg_names[j], val,valh);
-         }
-         
-         printf(" Memory Load Pipeline :- \n");
-         for (j=PSV_L1; j<=PSV_L3; j+=REGISTER_LENGTH)
-            {
-               unsigned int valh, val2,val3;
-               
-               val = get_reg(j);
-               valh = get_reg(j+1);
-               val2 = get_reg(j+2);
-               val3 = get_reg(j+3);
-
-               printf("\t\t%-8s 0x%08x %08x %08x %08x\n", reg_names[j], 
-                      val,valh,val2,val3);
-            }
-         
-         printf("\n Adder Pipeline :-\t\tMultiplier Pipeline :-\t\tFSR results :-\n");
-         for (i=PSV_FSR1,j=PSV_A1,k=PSV_M1; j<=PSV_A3; i++,j+=2,k+=2)
-            {
-               unsigned int valh,val2,val3,val4;
-
-               val4 = get_reg(i);
-               val = get_reg(j);
-               valh = get_reg(j+1);
-               val2 = get_reg(k);
-               val3 = get_reg(k+1);
-
-               printf("  %-4s 0x%08x %08x\t", reg_names[j], val,valh);
-               printf("%-4s 0x%08x %08x\t", reg_names[k], val2,val3);
-               printf("%-4s 0x%08x\n", reg_names[i], val4);
-            }
-         
-      }
-   
-   
-}
-
-
-
-/* The following set of routines was adapted from existing code previously
-   in an i860-specific version of breakpoint.c by Peggy Fieland
-   (Margaret_Fieland@vos.stratus.com) */
-/* routines to set a data breakpoint by setting the value in the DB register. 
-   Note that "hitting" the breakpoint will generate a data access trap. We
-   do not have a special trap handler. */
-unsigned int dbrkval, dbrkmod;
-void i860_dbrk_breakpoint()
-{
-   BTDEBUG("i860_dbrk_breakpoint was called , dbrkval %x\n", dbrkval);
-   
-   if (dbrkval != 0)
-      {
-         *(int *)&registers[DB<<2] = dbrkval;
-      }
-   else
-      {
-         *(int *)&registers[DB<<2] = 0;
-      }
-
-   *(int *)&registers[PSR<<2] &= ~3;
-   *(int *)&registers[PSR<<2] |= dbrkmod;
-
-   store_inferior_registers(DB);
-   store_inferior_registers(PSR);
-
-}
-
-/* set a "read" data breakpoint. */
-void
-d_ro_break_command(char *arg, int num)
-{
-	dbrkval = strtoul(arg, NULL, 0);
-	dbrkmod = 0x01;
-     BTDEBUG(" ro_dbreak - %x %x\n", dbrkval, dbrkmod);
-}
-
-/* set a "write" data breakpoint. */
-void
-d_wo_break_command(char *arg, int num)
-{
-	dbrkval = strtoul(arg, NULL, 0);
-	dbrkmod = 0x02;
-     BTDEBUG(" wo_dbreak - %x %x\n", dbrkval, dbrkmod);
-}
-
-/* set a "read/write" data breakpoint. */
-void
-d_rw_break_command(char *arg, int num)
-{  	
-  dbrkval  =  strtoul(arg, NULL,   0);
-  dbrkmod =  0x03;
-  BTDEBUG(" rw_dbreak - %x %x\n", dbrkval, dbrkmod);
- }
-
-/* clear data breakpoint. */
- void clear_dbreak(char *arg, int num)
- { 
-   dbrkval  = 0;
-   dbrkmod = 0;
- }
-
-/*   i860-specific  breakpoint initialization.    Includes  adding the
-i860-specific     data          breakpoint       commands.   */   
-void i860_init_breakpoints() 
-{ 
-  dbrkval = dbrkmod = 0;
-  add_com ("dbro", class_breakpoint, d_ro_break_command,
-	   "Set a data breakpoint READ ONLY, 32-bit data element.");
-  add_com ("dbwo", class_breakpoint, d_wo_break_command,
-	   "Set a data breakpoint WRITE ONLY, 32-bit data element.");
-  add_com ("dbrw", class_breakpoint, d_rw_break_command,
-	   "Set a data breakpoint READ/WRITE, 32-bit data element.");
-  add_com ("dclear", class_breakpoint, clear_dbreak,
-	   "clear the current data breakpoint.");
-  add_com_alias ("dc", "dclear", class_breakpoint, 1);
-
-}
-
-/* i860-specific code to insert a breakpoint. */
-int i860_insert_breakpoint(b)
-struct breakpoint *b;
-{
-   int val;
-   int *shadow0, *shadow1, *shadow2, *shadow3;
-
-   shadow0 = (int *)&b->shadow_contents[0];
-   shadow1 = (int *)&b->shadow_contents[4];
-   shadow2 = (int *)&b->shadow_contents[8];
-   shadow3 = (int *)&b->shadow_contents[12];
-
-   place_brk( b->address, BREAK_MODE, b );
-
-   if (b->mode == DIM)
-      {
-         
-         adj_read_memory (b->act_addr[0], shadow0,  INSTRUCTION_LENGTH);
-         val =  adj_write_memory (b->act_addr[0], break_insn,  INSTRUCTION_LENGTH);
-         if (val != 0 ) return val;
-         adj_read_memory (b->act_addr[1], shadow1,  INSTRUCTION_LENGTH);
-         /*	val = adj_write_memory (b->act_addr[1], float_insn,  INSTRUCTION_LENGTH); */
-         if (val != 0) return val;
-      } 
-   else	
-      {
-         adj_read_memory (b->act_addr[0], shadow0,  INSTRUCTION_LENGTH);
-         val = adj_write_memory (b->act_addr[0], break_insn,  INSTRUCTION_LENGTH);
-      }
-   if (b->address1 != 0)
-      {
-         if (b->mode == DIM)
-            {
-
-               adj_read_memory (b->act_addr[2], shadow2,  INSTRUCTION_LENGTH);
-               val = adj_write_memory (b->act_addr[2], break_insn,  INSTRUCTION_LENGTH);
-               if (val) return val;
-               adj_read_memory (b->act_addr[3], shadow3,  INSTRUCTION_LENGTH);
-               /*	val = adj_write_memory (b->act_addr[3], float_insn,  INSTRUCTION_LENGTH); */
-               if (val != 0) return val;
-            }
-         else	
-            {
-               adj_read_memory (b->act_addr[2], shadow0,  INSTRUCTION_LENGTH);
-               val = adj_write_memory (b->act_addr[2], break_insn,  INSTRUCTION_LENGTH);
-            }
-      }
-   if (val != 0)
-      return val;
-
-   b->inserted = 1;
-   return 0;
-}
-
-int i860_remove_breakpoint(b)
-struct breakpoint *b;
-{
-   int val;
-   int *shadow0, *shadow1, *shadow2, *shadow3;
-
-   shadow0 = (int *)&b->shadow_contents[0];
-   shadow1 = (int *)&b->shadow_contents[4];
-   shadow2 = (int *)&b->shadow_contents[8];
-   shadow3 = (int *)&b->shadow_contents[12];
-
-
-   if (b->inserted)
-      {
-         if (b->mode == DIM)
-            {
-               val =adj_write_memory (b->act_addr[0], shadow0,
-                                      INSTRUCTION_LENGTH);
-               val =adj_write_memory (b->act_addr[1],shadow1,
-                                       INSTRUCTION_LENGTH);
-               if (b->address1 != NULL)
-                  {
-                     val =adj_write_memory (b->act_addr[2],shadow2,
-                                             INSTRUCTION_LENGTH);
-                     val =adj_write_memory (b->act_addr[3], shadow3,
-                                             INSTRUCTION_LENGTH);
-                  }
-            } 
-         else	
-            {
-               val =adj_write_memory (b->act_addr[0], shadow0,
-                                       INSTRUCTION_LENGTH);
-               if (b->address1 != NULL)
-                  {
-                     val =adj_write_memory (b->act_addr[2],shadow0,
-                                            INSTRUCTION_LENGTH);
-                  }
-            }
-         if (val != 0)
-            return val;
-         b->inserted = 0;
-      }
-
-   return 0;
-
-
-}
-
-
-#ifdef USE_PROC_FS	/* Target dependent support for /proc */
-
-#include <sys/procfs.h>
-
-/* The following routines were added by Peggy Fieland (Margaret_Fieland@vos.stratus.com)
-They were adapted from the m-68k versions of the routines .*/
-
-/*  Given a pointer to a floating point register set in /proc format
-    (fpregset_t *), unpack the register contents and supply them as gdb's
-    idea of the current floating point register values. */
-
-void 
-supply_fpregset (fpregsetp)
-fpregset_t *fpregsetp;
-{
-  register int regno;
-  
-  BTDEBUG("supply_fregset called \n");
-  
-  for (regno = F0 ; regno <= F31 ; regno++)
-    {
-      supply_register (regno, (char *) &(fpregsetp -> fpu.r_freg[regno-F0]));
-    }
-}
-
-/*  Given a pointer to a floating point register set in /proc format
-    (fpregset_t *), update the register specified by REGNO from gdb's idea
-    of the current floating point register set.  If REGNO is -1, update
-    them all. */
-
-void
-fill_fpregset (fpregsetp, regno)
-fpregset_t *fpregsetp;
-int regno;
-{
-  int regi;
-  char *to;
-  char *from;
-  extern char registers[];
-  BTDEBUG("fill_fregset  regno %d\n",regno);
-
-  for (regi = F0 ; regi <= F31 ; regi++)
-    {
-      if ((regno == -1) || (regno == regi))
-	{
-	  from = (char *) &registers[REGISTER_BYTE (regi)];
-       to = (char *) &(fpregsetp -> fpu.r_freg[regi-F0]);
-	  bcopy (from, to, REGISTER_RAW_SIZE (regno));
-	}
-    }
-}
-
-
-/*  Given a pointer to a general register set in /proc format (gregset_t *),
-    unpack the register contents and supply them as gdb's idea of the current
-    register values. */
-
-void
-supply_gregset (gregsetp)
-gregset_t *gregsetp;
-{
-  register int regno;
-  register greg_t *regp = (greg_t *) gregsetp;
-
-  BTDEBUG("supply_gregset called \n");
-
-  for (regno = 0 ; regno <= R31 ; regno++)
-    {
-      supply_register (regno, (char *) (regp + regno));
-    }
-}
-
-/*  Given a pointer to a general register set in /proc format (gregset_t *),
-    update the register specified by REGNO from gdb's idea
-    of the current general register set.  If REGNO is -1, update
-    them all. */
-
-void
-fill_gregset (gregsetp, regno)
-gregset_t *gregsetp;
-int regno;
-{
-  int regi;
-  extern char registers[];
-  register greg_t *regp = (greg_t *) gregsetp;
-  BTDEBUG("fill_gregset regno %d \n",regno);
-
-  for (regi = 0 ; regi <= R31 ; regi++)
-    {
-      if ((regno == -1) || (regno == regi))
-	{
-        *(regp + regi) = *(int *) &registers[REGISTER_BYTE (regi)];
-	}
-
-   }
-}
-#endif
-
-
-/* Push an empty stack frame, to record the current PC, etc.  */
-/* We have this frame with fp pointing to a block where all GDB-visible
-   registers are stored in the order GDB knows them, and sp at the next
-   alignment point below fp.  Note: fp + NUM_REGS*4 was the old sp
-   */
-extern CORE_ADDR text_end;
-CORE_ADDR dummy_start_addr;
-void i860_push_frame()
-{    
-   register CORE_ADDR old_fp = read_register(FP_REGNUM);
-   register CORE_ADDR old_sp = read_register(SP_REGNUM);
-   register CORE_ADDR fp ;
-   extern char registers[];	
-					 
-   fp = old_sp - REGISTER_BYTES;							 
-   write_memory(fp, registers, REGISTER_BYTES);  /* write out old register values */
-   /* reset FP and SP */
-   write_register(FP_REGNUM, fp);
-   write_register(SP_REGNUM, (fp &~ 15));	/* re-align */		 
-   call_dummy_set = 1;
-}
-/* Discard from the stack the innermost frame, 
-   restoring all saved registers.  */
-
-void i860_pop_frame()
-{ register FRAME frame = get_current_frame ();			 	       
-  register CORE_ADDR fp;					 	       
-  struct frame_info *fi;						       
-  int i;
-  
-  fi = get_frame_info (frame);                                                 
-  fp = fi->frame;                                                              
-
-  if (call_dummy_set && fi -> pc >= call_dummy_start && 
-       fi -> pc <= call_dummy_start + CALL_DUMMY_LENGTH)
-     {
-  
-        read_memory(fp, registers, REGISTER_BYTES);
-
-        target_store_registers(-1);
-
-        {
-           /* since we stomped on code that will be executed when we exit the program,
-              restore it. */
-           extern REGISTER_TYPE call_save_code[4];
-     
-           write_memory     (call_dummy_start, (char *) call_save_code, 16);
-     
-        }
-        call_dummy_set = 0;
-     }
-  else
-     {
-        register int regnum;                                                         
-        struct frame_saved_regs fsr;                                                 
-        char raw_buffer[12];                                                         
-
-        get_frame_saved_regs (fi, &fsr);                                             
-        for (regnum = FP0_REGNUM + 31; regnum >= FP0_REGNUM; regnum--)               
-           if (fsr.regs[regnum])                                                      
-              write_register (regnum, read_memory_integer (fsr.regs[regnum], 4));      
-        for (regnum = R31; regnum >= 1; regnum--)                                     
-           if (fsr.regs[regnum])                                                      
-              if (regnum != SP_REGNUM)                                                 
-                 write_register (regnum, read_memory_integer (fsr.regs[regnum], 4));    
-              else                                                                     
-                 write_register (SP_REGNUM, fsr.regs[SP_REGNUM]);                       
-        if (fsr.regs[PS_REGNUM])                                                     
-           write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4));  
-        if (fsr.regs[FPS_REGNUM])                                                    
-           write_register (FPS_REGNUM, read_memory_integer (fsr.regs[FPS_REGNUM],4)); 
-        if (fsr.regs[PC_REGNUM])                                                     
-           write_register (PC_REGNUM,CLEAN_PC( read_memory_integer (fsr.regs[PC_REGNUM], 4)));  
-          }    
-  
-  flush_cached_frames ();					 	       
-  
-  set_current_frame (create_new_frame (read_register (FP_REGNUM),              
-                                        read_pc ()));
-
-}
-
-CORE_ADDR  i860_arg_coerce(nargs, args, struct_return, sp)
-     int nargs;
-     value *args;
-     int struct_return;
-     CORE_ADDR sp;
-{
-
-  register int scalar;
-  register enum type_code code2;
-  register struct type *type;
-  int i;
-  value arg;
-  int num_int_args = 0;
-  int num_float_args = 0;
-  int size = 0;
-  CORE_ADDR arg_ptr;
-  
-  /* if we return a structure, it's address is in R16, and thus it uses up one of the integer
-     argument registers. See the ABI. */
-  if (struct_return)     
-     num_int_args += 1;
-
-  /* loop to do the right thing with all the arguments and calculate the size of the memory
-     argument list. We keep count of the number of integer and the number of float parameters,
-     as well as the size of the memory argument list. */
-
-  for (i = 0; i < nargs; i++)
-     {    
-
-        /* NOTE that this is all hunky dory in spite of the fact that we don't actually
-           have the signature of the called procedure EXCEPT if we are passing in floats!
-           This is true, since registers are 4 bytes, and the minimum alignment in the
-           memory argument list is 4 bytes. See the ABI for more gory details. The switch
-           "ansi-conformant" is an attempt to get around this problem. */
-           
-        code2 = TYPE_CODE (VALUE_TYPE(args[i]));
-
-        /* Only coerce if we've got switch "ansi-conformant" off.
-           Actually, it's OK ( and probably helpful) to coerce ALL integer arguments
-           (see comment above), but never mind, we make them the right size in
-           pass_function_arguments. */
-
-        if ((!ansi_conformant) && (code2 != TYPE_CODE_STRUCT))
-           value_arg_coerce(args[i]);
-
-        arg = args[i];
-        type = VALUE_TYPE(args[i]);
-
-        /* All structures are passed by value in the memory argument list. */
-        if (code2 == TYPE_CODE_STRUCT)
-           {
-              size = ALIGN_ARG(size, sizeof(long));
-              size += TYPE_LENGTH(type);   
-           }
-        else if (type == builtin_type_float)
-           {
-              num_float_args += 1;
-              if (num_float_args > NUM_FLOAT_ARG_REGS)
-                 {
-                    size = ALIGN_ARG(size, TYPE_LENGTH(type)) ;
-                    size += TYPE_LENGTH(type);
-                 }
-           }
-        else if (type == builtin_type_double)
-           {
-              /* floating register alignment  -- see ABI */
-              if ((num_float_args%2) != 0)
-                 num_float_args += 1;
-
-              num_float_args += 2; /* use up two registers */
-
-              if (num_float_args > NUM_FLOAT_ARG_REGS)
-                 {
-                    size = ALIGN_ARG(size, TYPE_LENGTH(type)) ;
-                    size += TYPE_LENGTH(type);
-                 }
-           }
-        else
-           {
-              int len = max (sizeof(long), TYPE_LENGTH(type));
-              
-              num_int_args += 1;
-
-              if (num_int_args > NUM_INT_ARG_REGS)
-                 {
-                    /* see ABI -- in-memory arguments have AT LEAST word alignment */
-                    if  ((TYPE_CODE(type) == TYPE_CODE_INT) ||
-                         (TYPE_CODE(type) == TYPE_CODE_ENUM) ||
-                         (TYPE_CODE(type) == TYPE_CODE_CHAR) ||
-                         (TYPE_CODE(type) == TYPE_CODE_BOOL))
-                       size  = ALIGN_ARG(size, len);
-                    else
-                       size = ALIGN_ARG(size, sizeof(long));
-                    size += len;
-                 }
-           }
-                         
-     }
-  
-
-  /* recalculate the stack pointer, leaving enough space for the memory argument list and
-     realigning the stack pointer. */
-  if (size != 0)
-     {
-        arg_ptr = sp -  size;
-
-        arg_ptr = arg_ptr & (-16); /* realign stack */
-        write_register (R28,arg_ptr);
-        sp = arg_ptr;
-     }
-
-return (sp);
-
-}
-void i860_extract_return_value(type,regbuf,valbuf)
-struct type *type;
-char regbuf[REGISTER_BYTES];
-char *valbuf;
-{
-  register int len = TYPE_LENGTH (type);
-  double tmp_db;
-  float tmp_flt;
-
-   if ((TYPE_CODE(type) == TYPE_CODE_FLT))
-      {
-         if (len == sizeof (float))
-            {
-               /* FIXME 
-                  NOTE that this assumes that the function declaration was ANSI_CONFORMANT --
-                  at the present time I can't think of ANY WAY to disambiguate the two following
-                  cases:
-                  float really_does_return_a_float(float ff) 
-                  { ...}             
-                  and
-                  float actually_returns_a_double(ff)
-                  float ff;
-                  {...}
-                  */
-               bcopy ((char *) (regbuf) + REGISTER_BYTE(ADJ_FREG(F8)), (valbuf), TYPE_LENGTH (type)) ; 
-            }
-         else
-            bcopy ((char *) (regbuf) + REGISTER_BYTE(F8), (valbuf), TYPE_LENGTH (type)) ;
-      }
-   else 
-      bcopy ((char *) (regbuf) + REGISTER_BYTE(R16), (valbuf), TYPE_LENGTH (type));
-
-}
-void i860_store_return_value(type,valbuf)
-struct type *type;
-char *valbuf;
-{
-  register int len = TYPE_LENGTH (type);
-  double tmp_db;
-
-   if ((TYPE_CODE(type) == TYPE_CODE_FLT) )
-      {
-         write_register_bytes (REGISTER_BYTE (F8), valbuf, len);
-      }
-   else 
-      write_register_bytes (REGISTER_BYTE (R16), valbuf, TYPE_LENGTH (type));
- 
-}
-