[binutils.git] / gdb / sparc-xdep.c

/* Host-dependent code for SPARC host systems, for GDB, the GNU debugger.
   Copyright 1986, 1987, 1989, 1990, 1991  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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include <stdio.h>
#include "defs.h"
#include "inferior.h"
#include "target.h"

#include <sys/param.h>
#include <sys/file.h>		/* For L_SET */

#include <sys/ptrace.h>
#include <machine/reg.h>

#include "gdbcore.h"
#include <sys/core.h>

extern char register_valid[];

/* We don't store all registers immediately when requested, since they
   get sent over in large chunks anyway.  Instead, we accumulate most
   of the changes and send them over once.  "deferred_stores" keeps
   track of which sets of registers we have locally-changed copies of,
   so we only need send the groups that have changed.  */

#define	INT_REGS	1
#define	STACK_REGS	2
#define	FP_REGS		4

int deferred_stores = 0;	/* Cumulates stores we want to do eventually. */

/* Fetch one or more registers from the inferior.  REGNO == -1 to get
   them all.  We actually fetch more than requested, when convenient,
   marking them as valid so we won't fetch them again.  */
void
fetch_inferior_registers (regno)
     int regno;
{
  struct regs inferior_registers;
  struct fp_status inferior_fp_registers;
  int i;

  /* We should never be called with deferred stores, because a prerequisite
     for writing regs is to have fetched them all (PREPARE_TO_STORE), sigh.  */
  if (deferred_stores) abort();

  DO_DEFERRED_STORES;

  /* Global and Out regs are fetched directly, as well as the control
     registers.  If we're getting one of the in or local regs,
     and the stack pointer has not yet been fetched,
     we have to do that first, since they're found in memory relative
     to the stack pointer.  */
  if (regno < O7_REGNUM  /* including -1 */
      || regno >= Y_REGNUM
      || (!register_valid[SP_REGNUM] && regno < I7_REGNUM))
    {
      if (0 != ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers))
	    perror("ptrace_getregs");
      
      registers[REGISTER_BYTE (0)] = 0;
      bcopy (&inferior_registers.r_g1, &registers[REGISTER_BYTE (1)], 15 * REGISTER_RAW_SIZE (G0_REGNUM));
      *(int *)&registers[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps; 
      *(int *)&registers[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
      *(int *)&registers[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc;
      *(int *)&registers[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y;

      for (i = G0_REGNUM; i <= O7_REGNUM; i++)
	register_valid[i] = 1;
      register_valid[Y_REGNUM] = 1;
      register_valid[PS_REGNUM] = 1;
      register_valid[PC_REGNUM] = 1;
      register_valid[NPC_REGNUM] = 1;
      /* If we don't set these valid, read_register_bytes() rereads
	 all the regs every time it is called!  FIXME.  */
      register_valid[WIM_REGNUM] = 1;	/* Not true yet, FIXME */
      register_valid[TBR_REGNUM] = 1;	/* Not true yet, FIXME */
      register_valid[FPS_REGNUM] = 1;	/* Not true yet, FIXME */
      register_valid[CPS_REGNUM] = 1;	/* Not true yet, FIXME */
    }

  /* Floating point registers */
  if (regno == -1 || (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31))
    {
      if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers))
	    perror("ptrace_getfpregs");
      bcopy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
	     sizeof inferior_fp_registers.fpu_fr);
      /* bcopy (&inferior_fp_registers.Fpu_fsr,
	     &registers[REGISTER_BYTE (FPS_REGNUM)],
	     sizeof (FPU_FSR_TYPE));  FIXME???  -- gnu@cyg */
      for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++)
	register_valid[i] = 1;
      register_valid[FPS_REGNUM] = 1;
    }

  /* These regs are saved on the stack by the kernel.  Only read them
     all (16 ptrace calls!) if we really need them.  */
  if (regno == -1)
    {
      target_xfer_memory (*(CORE_ADDR*)&registers[REGISTER_BYTE (SP_REGNUM)],
		          &registers[REGISTER_BYTE (L0_REGNUM)],
			  16*REGISTER_RAW_SIZE (L0_REGNUM), 0);
      for (i = L0_REGNUM; i <= I7_REGNUM; i++)
	register_valid[i] = 1;
    }
  else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
    {
      CORE_ADDR sp = *(CORE_ADDR*)&registers[REGISTER_BYTE (SP_REGNUM)];
      i = REGISTER_BYTE (regno);
      if (register_valid[regno])
	printf("register %d valid and read\n", regno);
      target_xfer_memory (sp + i - REGISTER_BYTE (L0_REGNUM),
			  &registers[i], REGISTER_RAW_SIZE (regno), 0);
      register_valid[regno] = 1;
    }
}

/* Store our register values back into the inferior.
   If REGNO is -1, do this for all registers.
   Otherwise, REGNO specifies which register (so we can save time).  */

int
store_inferior_registers (regno)
     int regno;
{
  struct regs inferior_registers;
  struct fp_status inferior_fp_registers;
  int wanna_store = INT_REGS + STACK_REGS + FP_REGS;

  /* First decide which pieces of machine-state we need to modify.  
     Default for regno == -1 case is all pieces.  */
  if (regno >= 0)
    if (FP0_REGNUM <= regno && regno < FP0_REGNUM + 32)
      {
	wanna_store = FP_REGS;
      }
    else 
      {
	if (regno == SP_REGNUM)
	  wanna_store = INT_REGS + STACK_REGS;
	else if (regno < L0_REGNUM || regno > I7_REGNUM)
	  wanna_store = INT_REGS;
	else
	  wanna_store = STACK_REGS;
      }

  /* See if we're forcing the stores to happen now, or deferring. */
  if (regno == -2)
    {
      wanna_store = deferred_stores;
      deferred_stores = 0;
    }
  else
    {
      if (wanna_store == STACK_REGS)
	{
	  /* Fall through and just store one stack reg.  If we deferred
	     it, we'd have to store them all, or remember more info.  */
	}
      else
	{
	  deferred_stores |= wanna_store;
	  return 0;
	}
    }

  if (wanna_store & STACK_REGS)
    {
      CORE_ADDR sp = *(CORE_ADDR *)&registers[REGISTER_BYTE (SP_REGNUM)];

      if (regno < 0 || regno == SP_REGNUM)
	{
	  if (!register_valid[L0_REGNUM+5]) abort();
	  target_xfer_memory (sp, 
			      &registers[REGISTER_BYTE (L0_REGNUM)],
			      16*REGISTER_RAW_SIZE (L0_REGNUM), 1);
	}
      else
	{
	  if (!register_valid[regno]) abort();
	  target_xfer_memory (sp + REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM),
			      &registers[REGISTER_BYTE (regno)],
			      REGISTER_RAW_SIZE (regno), 1);
	}
	
    }

  if (wanna_store & INT_REGS)
    {
      if (!register_valid[G1_REGNUM]) abort();

      bcopy (&registers[REGISTER_BYTE (G1_REGNUM)],
	     &inferior_registers.r_g1, 15 * REGISTER_RAW_SIZE (G1_REGNUM));

      inferior_registers.r_ps =
	*(int *)&registers[REGISTER_BYTE (PS_REGNUM)];
      inferior_registers.r_pc =
	*(int *)&registers[REGISTER_BYTE (PC_REGNUM)];
      inferior_registers.r_npc =
	*(int *)&registers[REGISTER_BYTE (NPC_REGNUM)];
      inferior_registers.r_y =
	*(int *)&registers[REGISTER_BYTE (Y_REGNUM)];

      if (0 != ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers))
	perror("ptrace_setregs");
    }

  if (wanna_store & FP_REGS)
    {
      if (!register_valid[FP0_REGNUM+9]) abort();
      bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)],
	     &inferior_fp_registers,
	     sizeof inferior_fp_registers.fpu_fr);

/*      bcopy (&registers[REGISTER_BYTE (FPS_REGNUM)],
	     &inferior_fp_registers.Fpu_fsr,
	     sizeof (FPU_FSR_TYPE));
****/
      if (0 !=
	 ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers))
	 perror("ptrace_setfpregs");
    }
    return 0;
}
\f
void
fetch_core_registers (core_reg_sect, core_reg_size, which)
  char *core_reg_sect;
  unsigned core_reg_size;
  int which;
{

  if (which == 0) {

    /* Integer registers */

#define gregs ((struct regs *)core_reg_sect)
    /* G0 *always* holds 0.  */
    *(int *)&registers[REGISTER_BYTE (0)] = 0;

    /* The globals and output registers.  */
    bcopy (&gregs->r_g1, 
	   &registers[REGISTER_BYTE (G1_REGNUM)],
	   15 * REGISTER_RAW_SIZE (G1_REGNUM));
    *(int *)&registers[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
    *(int *)&registers[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
    *(int *)&registers[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
    *(int *)&registers[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;

    /* My best guess at where to get the locals and input
       registers is exactly where they usually are, right above
       the stack pointer.  If the core dump was caused by a bus error
       from blowing away the stack pointer (as is possible) then this
       won't work, but it's worth the try. */
    {
      int sp;

      sp = *(int *)&registers[REGISTER_BYTE (SP_REGNUM)];
      if (0 != target_read_memory (sp, &registers[REGISTER_BYTE (L0_REGNUM)], 
			  16 * REGISTER_RAW_SIZE (L0_REGNUM)))
	{
	  /* fprintf so user can still use gdb */
	  fprintf (stderr,
		   "Couldn't read input and local registers from core file\n");
	}
    }
  } else if (which == 2) {

    /* Floating point registers */

#define fpuregs  ((struct fpu *) core_reg_sect)
    if (core_reg_size >= sizeof (struct fpu))
      {
	bcopy (fpuregs->fpu_regs,
	       &registers[REGISTER_BYTE (FP0_REGNUM)],
	       sizeof (fpuregs->fpu_regs));
	bcopy (&fpuregs->fpu_fsr,
	       &registers[REGISTER_BYTE (FPS_REGNUM)],
	       sizeof (FPU_FSR_TYPE));
      }
    else
      fprintf (stderr, "Couldn't read float regs from core file\n");
  }
}
Commit	Line	Data
7d9884b9 JG	1	/* Host-dependent code for SPARC host systems, for GDB, the GNU debugger.
7d9884b9 JG	2	Copyright 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
dd3b648e RP	3
	4	This file is part of GDB.
	5
99a7de40	6	This program is free software; you can redistribute it and/or modify
dd3b648e	7	it under the terms of the GNU General Public License as published by
99a7de40 JG	8	the Free Software Foundation; either version 2 of the License, or
99a7de40 JG	9	(at your option) any later version.
dd3b648e	10
99a7de40	11	This program is distributed in the hope that it will be useful,
dd3b648e RP	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
99a7de40 JG	17	along with this program; if not, write to the Free Software
99a7de40 JG	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
dd3b648e RP	19
	20	#include <stdio.h>
	21	#include "defs.h"
dd3b648e RP	22	#include "inferior.h"
	23	#include "target.h"
	24
	25	#include <sys/param.h>
	26	#include <sys/file.h> /* For L_SET */
	27
	28	#include <sys/ptrace.h>
	29	#include <machine/reg.h>
	30
	31	#include "gdbcore.h"
	32	#include <sys/core.h>
	33
	34	extern char register_valid[];
	35
69f29a86 JG	36	/* We don't store all registers immediately when requested, since they
	37	get sent over in large chunks anyway. Instead, we accumulate most
	38	of the changes and send them over once. "deferred_stores" keeps
	39	track of which sets of registers we have locally-changed copies of,
	40	so we only need send the groups that have changed. */
	41
	42	#define INT_REGS 1
	43	#define STACK_REGS 2
	44	#define FP_REGS 4
	45
beff312e RP	46	int deferred_stores = 0; /* Cumulates stores we want to do eventually. */
beff312e RP	47
dd3b648e RP	48	/* Fetch one or more registers from the inferior. REGNO == -1 to get
	49	them all. We actually fetch more than requested, when convenient,
	50	marking them as valid so we won't fetch them again. */
	51	void
	52	fetch_inferior_registers (regno)
	53	int regno;
	54	{
	55	struct regs inferior_registers;
	56	struct fp_status inferior_fp_registers;
	57	int i;
	58
	59	/* We should never be called with deferred stores, because a prerequisite
	60	for writing regs is to have fetched them all (PREPARE_TO_STORE), sigh. */
	61	if (deferred_stores) abort();
	62
	63	DO_DEFERRED_STORES;
	64
	65	/* Global and Out regs are fetched directly, as well as the control
	66	registers. If we're getting one of the in or local regs,
	67	and the stack pointer has not yet been fetched,
	68	we have to do that first, since they're found in memory relative
	69	to the stack pointer. */
	70	if (regno < O7_REGNUM /* including -1 */
	71	\|\| regno >= Y_REGNUM
	72	\|\| (!register_valid[SP_REGNUM] && regno < I7_REGNUM))
	73	{
	74	if (0 != ptrace (PTRACE_GETREGS, inferior_pid, &inferior_registers))
	75	perror("ptrace_getregs");
	76
	77	registers[REGISTER_BYTE (0)] = 0;
	78	bcopy (&inferior_registers.r_g1, &registers[REGISTER_BYTE (1)], 15 * REGISTER_RAW_SIZE (G0_REGNUM));
	79	(int )&registers[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
	80	(int )&registers[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
	81	(int )&registers[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc;
	82	(int )&registers[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y;
	83
	84	for (i = G0_REGNUM; i <= O7_REGNUM; i++)
	85	register_valid[i] = 1;
	86	register_valid[Y_REGNUM] = 1;
	87	register_valid[PS_REGNUM] = 1;
	88	register_valid[PC_REGNUM] = 1;
	89	register_valid[NPC_REGNUM] = 1;
	90	/* If we don't set these valid, read_register_bytes() rereads
	91	all the regs every time it is called! FIXME. */
	92	register_valid[WIM_REGNUM] = 1; /* Not true yet, FIXME */
	93	register_valid[TBR_REGNUM] = 1; /* Not true yet, FIXME */
	94	register_valid[FPS_REGNUM] = 1; /* Not true yet, FIXME */
	95	register_valid[CPS_REGNUM] = 1; /* Not true yet, FIXME */
	96	}
	97
	98	/* Floating point registers */
	99	if (regno == -1 \|\| (regno >= FP0_REGNUM && regno <= FP0_REGNUM + 31))
	100	{
	101	if (0 != ptrace (PTRACE_GETFPREGS, inferior_pid, &inferior_fp_registers))
	102	perror("ptrace_getfpregs");
	103	bcopy (&inferior_fp_registers, &registers[REGISTER_BYTE (FP0_REGNUM)],
	104	sizeof inferior_fp_registers.fpu_fr);
	105	/* bcopy (&inferior_fp_registers.Fpu_fsr,
	106	&registers[REGISTER_BYTE (FPS_REGNUM)],
	107	sizeof (FPU_FSR_TYPE)); FIXME??? -- gnu@cyg */
	108	for (i = FP0_REGNUM; i <= FP0_REGNUM+31; i++)
	109	register_valid[i] = 1;
	110	register_valid[FPS_REGNUM] = 1;
	111	}
112
113	/* These regs are saved on the stack by the kernel. Only read them
114	all (16 ptrace calls!) if we really need them. */
115	if (regno == -1)
116	{
117	target_xfer_memory ((CORE_ADDR)&registers[REGISTER_BYTE (SP_REGNUM)],
118	&registers[REGISTER_BYTE (L0_REGNUM)],
119	16*REGISTER_RAW_SIZE (L0_REGNUM), 0);
120	for (i = L0_REGNUM; i <= I7_REGNUM; i++)
121	register_valid[i] = 1;
122	}
123	else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
124	{
125	CORE_ADDR sp = (CORE_ADDR)&registers[REGISTER_BYTE (SP_REGNUM)];
126	i = REGISTER_BYTE (regno);
127	if (register_valid[regno])
128	printf("register %d valid and read\n", regno);
129	target_xfer_memory (sp + i - REGISTER_BYTE (L0_REGNUM),
130	&registers[i], REGISTER_RAW_SIZE (regno), 0);
131	register_valid[regno] = 1;
132	}
133	}
134
135	/* Store our register values back into the inferior.
136	If REGNO is -1, do this for all registers.
137	Otherwise, REGNO specifies which register (so we can save time). */
138
dd3b648e RP	139	int
	140	store_inferior_registers (regno)
	141	int regno;
	142	{
	143	struct regs inferior_registers;
	144	struct fp_status inferior_fp_registers;
	145	int wanna_store = INT_REGS + STACK_REGS + FP_REGS;
	146
	147	/* First decide which pieces of machine-state we need to modify.
	148	Default for regno == -1 case is all pieces. */
	149	if (regno >= 0)
	150	if (FP0_REGNUM <= regno && regno < FP0_REGNUM + 32)
	151	{
	152	wanna_store = FP_REGS;
	153	}
	154	else
	155	{
	156	if (regno == SP_REGNUM)
	157	wanna_store = INT_REGS + STACK_REGS;
	158	else if (regno < L0_REGNUM \|\| regno > I7_REGNUM)
	159	wanna_store = INT_REGS;
	160	else
	161	wanna_store = STACK_REGS;
	162	}
	163
	164	/* See if we're forcing the stores to happen now, or deferring. */
	165	if (regno == -2)
	166	{
	167	wanna_store = deferred_stores;
	168	deferred_stores = 0;
	169	}
	170	else
	171	{
	172	if (wanna_store == STACK_REGS)
	173	{
	174	/* Fall through and just store one stack reg. If we deferred
	175	it, we'd have to store them all, or remember more info. */
	176	}
	177	else
	178	{
	179	deferred_stores \|= wanna_store;
	180	return 0;
	181	}
	182	}
	183
	184	if (wanna_store & STACK_REGS)
	185	{
	186	CORE_ADDR sp = (CORE_ADDR )&registers[REGISTER_BYTE (SP_REGNUM)];
	187
	188	if (regno < 0 \|\| regno == SP_REGNUM)
	189	{
	190	if (!register_valid[L0_REGNUM+5]) abort();
	191	target_xfer_memory (sp,
	192	&registers[REGISTER_BYTE (L0_REGNUM)],
	193	16*REGISTER_RAW_SIZE (L0_REGNUM), 1);
	194	}
	195	else
	196	{
	197	if (!register_valid[regno]) abort();
	198	target_xfer_memory (sp + REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM),
	199	&registers[REGISTER_BYTE (regno)],
	200	REGISTER_RAW_SIZE (regno), 1);
	201	}
	202
203	}
204
205	if (wanna_store & INT_REGS)
206	{
207	if (!register_valid[G1_REGNUM]) abort();
208
209	bcopy (&registers[REGISTER_BYTE (G1_REGNUM)],
210	&inferior_registers.r_g1, 15 * REGISTER_RAW_SIZE (G1_REGNUM));
211
212	inferior_registers.r_ps =
213	(int )&registers[REGISTER_BYTE (PS_REGNUM)];
214	inferior_registers.r_pc =
215	(int )&registers[REGISTER_BYTE (PC_REGNUM)];
216	inferior_registers.r_npc =
217	(int )&registers[REGISTER_BYTE (NPC_REGNUM)];
218	inferior_registers.r_y =
219	(int )&registers[REGISTER_BYTE (Y_REGNUM)];
220
221	if (0 != ptrace (PTRACE_SETREGS, inferior_pid, &inferior_registers))
222	perror("ptrace_setregs");
223	}
224
225	if (wanna_store & FP_REGS)
226	{
227	if (!register_valid[FP0_REGNUM+9]) abort();
228	bcopy (&registers[REGISTER_BYTE (FP0_REGNUM)],
229	&inferior_fp_registers,
230	sizeof inferior_fp_registers.fpu_fr);
231
232	/* bcopy (&registers[REGISTER_BYTE (FPS_REGNUM)],
233	&inferior_fp_registers.Fpu_fsr,
234	sizeof (FPU_FSR_TYPE));
235	****/
236	if (0 !=
237	ptrace (PTRACE_SETFPREGS, inferior_pid, &inferior_fp_registers))
238	perror("ptrace_setfpregs");
239	}
240	return 0;
241	}
242	\f
243	void
244	fetch_core_registers (core_reg_sect, core_reg_size, which)
245	char *core_reg_sect;
246	unsigned core_reg_size;
247	int which;
248	{
249
250	if (which == 0) {
251
252	/* Integer registers */
253
254	#define gregs ((struct regs *)core_reg_sect)
255	/* G0 always holds 0. */
256	(int )&registers[REGISTER_BYTE (0)] = 0;
257
258	/* The globals and output registers. */
259	bcopy (&gregs->r_g1,
260	&registers[REGISTER_BYTE (G1_REGNUM)],
261	15 * REGISTER_RAW_SIZE (G1_REGNUM));
262	(int )&registers[REGISTER_BYTE (PS_REGNUM)] = gregs->r_ps;
263	(int )&registers[REGISTER_BYTE (PC_REGNUM)] = gregs->r_pc;
264	(int )&registers[REGISTER_BYTE (NPC_REGNUM)] = gregs->r_npc;
265	(int )&registers[REGISTER_BYTE (Y_REGNUM)] = gregs->r_y;
266
267	/* My best guess at where to get the locals and input
268	registers is exactly where they usually are, right above
269	the stack pointer. If the core dump was caused by a bus error
270	from blowing away the stack pointer (as is possible) then this
271	won't work, but it's worth the try. */
272	{
273	int sp;
274
275	sp = (int )&registers[REGISTER_BYTE (SP_REGNUM)];
276	if (0 != target_read_memory (sp, &registers[REGISTER_BYTE (L0_REGNUM)],
277	16 * REGISTER_RAW_SIZE (L0_REGNUM)))
278	{
279	/* fprintf so user can still use gdb */
280	fprintf (stderr,
281	"Couldn't read input and local registers from core file\n");
282	}
283	}
284	} else if (which == 2) {
285
286	/* Floating point registers */
287
288	#define fpuregs ((struct fpu *) core_reg_sect)
289	if (core_reg_size >= sizeof (struct fpu))
290	{
291	bcopy (fpuregs->fpu_regs,
292	&registers[REGISTER_BYTE (FP0_REGNUM)],
293	sizeof (fpuregs->fpu_regs));
294	bcopy (&fpuregs->fpu_fsr,
295	&registers[REGISTER_BYTE (FPS_REGNUM)],
296	sizeof (FPU_FSR_TYPE));
297	}
298	else
299	fprintf (stderr, "Couldn't read float regs from core file\n");
300	}
301	}