[deliverable/binutils-gdb.git] / gdb / tm-tahoe.h

/* Definitions to make GDB target for a tahoe running 4.3-Reno.
   Copyright 1986, 1987, 1989, 1991, 1992, 1993 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.  */

/*
 * Ported by the State University of New York at Buffalo by the Distributed
 * Computer Systems Lab, Department of Computer Science, 1991.
 */

#define TARGET_BYTE_ORDER BIG_ENDIAN
#define BITS_BIG_ENDIAN 0

/* Offset from address of function to start of its code.
   Zero on most machines.  */

#define FUNCTION_START_OFFSET 2

/* Advance PC across any function entry prologue instructions
   to reach some "real" code.  */

#define SKIP_PROLOGUE(pc)	\
{ register int op = (unsigned char) read_memory_integer (pc, 1);  \
  if (op == 0x11) pc += 2;  /* skip brb */			  \
  if (op == 0x13) pc += 3;  /* skip brw */			  \
  if (op == 0x2c &&						  \
      ((unsigned char) read_memory_integer (pc+2, 1)) == 0x5e)	  \
    pc += 3;  /* skip subl2 */					  \
  if (op == 0xe9 &&						  \
      ((unsigned char) read_memory_integer (pc+1, 1)) == 0xae &&  \
      ((unsigned char) read_memory_integer(pc+3, 1)) == 0x5e)	  \
     pc += 4;  /* skip movab */					  \
  if (op == 0xe9 &&						  \
      ((unsigned char) read_memory_integer (pc+1, 1)) == 0xce &&  \
      ((unsigned char) read_memory_integer(pc+4, 1)) == 0x5e)	  \
    pc += 5;  /* skip movab */					  \
  if (op == 0xe9 &&						  \
      ((unsigned char) read_memory_integer (pc+1, 1)) == 0xee &&  \
      ((unsigned char) read_memory_integer(pc+6, 1)) == 0x5e)	  \
    pc += 7;  /* skip movab */					  \
}

/* Immediately after a function call, return the saved pc.
   Can't always go through the frames for this because on some machines
   the new frame is not set up until the new function executes
   some instructions.  */

#define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame)

/* Wrong for cross-debugging.  I don't know the real values.  */
#include <machine/param.h>
#define TARGET_UPAGES UPAGES
#define TARGET_NBPG NBPG

/* Address of end of stack space.  */

#define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG))

/* On BSD, sigtramp is in the u area.  Can't check the exact
   addresses because for cross-debugging we don't have target include
   files around.  This should be close enough.  */
#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000))

/* Stack grows downward.  */

#define INNER_THAN <

/* Sequence of bytes for breakpoint instruction.  */

#define BREAKPOINT {0x30}

/* Amount PC must be decremented by after a breakpoint.
   This is often the number of bytes in BREAKPOINT
   but not always.  */

#define DECR_PC_AFTER_BREAK 0

/* Nonzero if instruction at PC is a return instruction.  */

#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x40)

/* Return 1 if P points to an invalid floating point value.
   LEN is the length in bytes -- not relevant on the Tahoe. */

#define INVALID_FLOAT(p, len) ((*(short *) p & 0xff80) == 0x8000)

/* Say how long (ordinary) registers are.  */

#define REGISTER_TYPE long

/* Number of machine registers */

#define NUM_REGS 19

/* Initializer for an array of names of registers.
   There should be NUM_REGS strings in this initializer.  */

#define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "fp", "sp", "pc", "ps", "al", "ah"}

#define FP_REGNUM 13		/* Contains address of executing stack frame */
#define SP_REGNUM 14		/* Contains address of top of stack */
#define PC_REGNUM 15		/* Contains program counter */
#define PS_REGNUM 16		/* Contains processor status */

#define AL_REGNUM 17		/* Contains accumulator */
#define AH_REGNUM 18

/* Total amount of space needed to store our copies of the machine's
   register state, the array `registers'.  */

#define REGISTER_BYTES (19*4)

/* Index within `registers' of the first byte of the space for
   register N.  */

#define REGISTER_BYTE(N) ((N) * 4)

/* Number of bytes of storage in the actual machine representation
   for register N.  On the tahoe, all regs are 4 bytes.  */

#define REGISTER_RAW_SIZE(N) 4

/* Number of bytes of storage in the program's representation
   for register N.  On the tahoe, all regs are 4 bytes.  */

#define REGISTER_VIRTUAL_SIZE(N) 4

/* Largest value REGISTER_RAW_SIZE can have.  */

#define MAX_REGISTER_RAW_SIZE 4

/* Largest value REGISTER_VIRTUAL_SIZE can have.  */

#define MAX_REGISTER_VIRTUAL_SIZE 4

/* Nonzero if register N requires conversion
   from raw format to virtual format.  */

#define REGISTER_CONVERTIBLE(N) 0

/* Convert data from raw format for register REGNUM
   to virtual format for register REGNUM.  */

#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO)	\
  bcopy ((FROM), (TO), 4);

/* Convert data from virtual format for register REGNUM
   to raw format for register REGNUM.  */

#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO)	\
  bcopy ((FROM), (TO), 4);

/* Return the GDB type object for the "standard" data type
   of data in register N.  */

#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int

/* Store the address of the place in which to copy the structure the
   subroutine will return.  This is called from call_function. */

#define STORE_STRUCT_RETURN(ADDR, SP) \
  { write_register (1, (ADDR)); }

/* Extract from an array REGBUF containing the (raw) register state
   a function return value of type TYPE, and copy that, in virtual format,
   into VALBUF.  */

#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
  bcopy (REGBUF, VALBUF, TYPE_LENGTH (TYPE))

/* Write into appropriate registers a function return value
   of type TYPE, given in virtual format.  */

#define STORE_RETURN_VALUE(TYPE,VALBUF) \
  write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))

/* Extract from an array REGBUF containing the (raw) register state
   the address in which a function should return its structure value,
   as a CORE_ADDR (or an expression that can be used as one).  */

#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF))

/* Describe the pointer in each stack frame to the previous stack frame
   (its caller).

   FRAME_CHAIN takes a frame's nominal address
   and produces the frame's chain-pointer. */

/* In the case of the Tahoe, the frame's nominal address is the FP value,
   and it points to the old FP */

#define FRAME_CHAIN(thisframe)  \
  (!inside_entry_file ((thisframe)->pc) ? \
   read_memory_integer ((thisframe)->frame, 4) :\
   0)

/* Define other aspects of the stack frame.  */

/* Saved PC */

#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4))

/* In most of GDB, getting the args address is too important to
   just say "I don't know". */

#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)

/* Address to use as an anchor for finding local variables */

#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)

/* Return number of args passed to a frame.
   Can return -1, meaning no way to tell.  */

#define FRAME_NUM_ARGS(numargs, fi)  \
{ numargs = ((0xffff & read_memory_integer(((fi)->frame-4),4)) - 4) >> 2; }

/* Return number of bytes at start of arglist that are not really args.  */

#define FRAME_ARGS_SKIP 0

/* Put here the code to store, into a struct frame_saved_regs,
   the addresses of the saved registers of frame described by FRAME_INFO.
   This includes special registers such as pc and fp saved in special
   ways in the stack frame.  sp is even more special:
   the address we return for it IS the sp for the next frame.  */

#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
{ register int regnum;     \
  register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\
  register CORE_ADDR next_addr;     \
  bzero (&frame_saved_regs, sizeof frame_saved_regs);     \
  next_addr = (frame_info)->frame - 8;     \
  for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1)  \
    (frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\
  (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4;  \
  (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8;  \
  (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame;      \
}

/* Things needed for making the inferior call functions.  */

/* Push an empty stack frame, to record the current PC, etc.  */

#define PUSH_DUMMY_FRAME \
{ register CORE_ADDR sp = read_register (SP_REGNUM);	\
  register int regnum;					\
printf("PUSH_DUMMY_FRAME\n");				\
  sp = push_word (sp, read_register (FP_REGNUM));	\
  write_register (FP_REGNUM, sp);			\
  sp = push_word (sp, 0x1fff0004);   /*SAVE MASK*/	\
  sp = push_word (sp, read_register (PC_REGNUM));	\
  for (regnum = 12; regnum >= 0; regnum--)		\
    sp = push_word (sp, read_register (regnum));	\
  write_register (SP_REGNUM, sp);			\
}

/* Discard from the stack the innermost frame, restoring all registers.  */

#define POP_FRAME  \
{ register CORE_ADDR fp = read_register (FP_REGNUM);			\
  register int regnum;							\
  register int regmask = read_memory_integer (fp-4, 4);			\
printf("POP_FRAME\n");							\
  regmask >>= 16;                                               	\
  write_register (SP_REGNUM, fp+4);	                           	\
  write_register (PC_REGNUM, read_memory_integer(fp-8, 4));	  	\
  write_register (FP_REGNUM, read_memory_integer(fp, 4));  		\
  fp -= 8;								\
  for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1)		\
    if (regmask & 0x1000)                                            	\
      write_register (regnum, read_memory_integer (fp-=4, 4));		\
  flush_cached_frames ();						\
  set_current_frame (create_new_frame (read_register (FP_REGNUM),	\
					read_pc ())); }

/* This sequence of words is the instructions
     calls #69, @#32323232
     bpt
   Note this is 8 bytes.  */

#define CALL_DUMMY {0xbf699f32, 0x32323230}

/* Start execution at beginning of dummy */

#define CALL_DUMMY_START_OFFSET 0

/* Insert the specified number of args and function address
   into a call sequence of the above form stored at DUMMYNAME.  */

#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, valtype, using_gcc) \
{ int temp = (int) fun;				\
  *((char *) dummyname + 1) = nargs;		\
  bcopy(&temp,(char *)dummyname+3,4); }
Commit	Line	Data
cb173f45	1	/* Definitions to make GDB target for a tahoe running 4.3-Reno.
58dbaabd	2	Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
cb173f45 JK	3
	4	This file is part of GDB.
	5
99a7de40	6	This program is free software; you can redistribute it and/or modify
cb173f45	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.
cb173f45	10
99a7de40	11	This program is distributed in the hope that it will be useful,
cb173f45 JK	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. */
cb173f45 JK	19
	20	/*
	21	* Ported by the State University of New York at Buffalo by the Distributed
	22	* Computer Systems Lab, Department of Computer Science, 1991.
	23	*/
	24
	25	#define TARGET_BYTE_ORDER BIG_ENDIAN
	26	#define BITS_BIG_ENDIAN 0
	27
cb173f45 JK	28	/* Offset from address of function to start of its code.
	29	Zero on most machines. */
	30
	31	#define FUNCTION_START_OFFSET 2
	32
	33	/* Advance PC across any function entry prologue instructions
	34	to reach some "real" code. */
	35
	36	#define SKIP_PROLOGUE(pc) \
	37	{ register int op = (unsigned char) read_memory_integer (pc, 1); \
	38	if (op == 0x11) pc += 2; /* skip brb */ \
	39	if (op == 0x13) pc += 3; /* skip brw */ \
	40	if (op == 0x2c && \
	41	((unsigned char) read_memory_integer (pc+2, 1)) == 0x5e) \
	42	pc += 3; /* skip subl2 */ \
	43	if (op == 0xe9 && \
	44	((unsigned char) read_memory_integer (pc+1, 1)) == 0xae && \
	45	((unsigned char) read_memory_integer(pc+3, 1)) == 0x5e) \
	46	pc += 4; /* skip movab */ \
	47	if (op == 0xe9 && \
	48	((unsigned char) read_memory_integer (pc+1, 1)) == 0xce && \
	49	((unsigned char) read_memory_integer(pc+4, 1)) == 0x5e) \
	50	pc += 5; /* skip movab */ \
	51	if (op == 0xe9 && \
	52	((unsigned char) read_memory_integer (pc+1, 1)) == 0xee && \
	53	((unsigned char) read_memory_integer(pc+6, 1)) == 0x5e) \
	54	pc += 7; /* skip movab */ \
	55	}
	56
	57	/* Immediately after a function call, return the saved pc.
	58	Can't always go through the frames for this because on some machines
	59	the new frame is not set up until the new function executes
	60	some instructions. */
	61
	62	#define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame)
	63
	64	/* Wrong for cross-debugging. I don't know the real values. */
0c540082	65	#include <machine/param.h>
cb173f45 JK	66	#define TARGET_UPAGES UPAGES
	67	#define TARGET_NBPG NBPG
	68
cb173f45 JK	69	/* Address of end of stack space. */
	70
	71	#define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG))
	72
	73	/* On BSD, sigtramp is in the u area. Can't check the exact
	74	addresses because for cross-debugging we don't have target include
	75	files around. This should be close enough. */
	76	#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000))
	77
	78	/* Stack grows downward. */
	79
	80	#define INNER_THAN <
	81
	82	/* Sequence of bytes for breakpoint instruction. */
	83
	84	#define BREAKPOINT {0x30}
	85
	86	/* Amount PC must be decremented by after a breakpoint.
	87	This is often the number of bytes in BREAKPOINT
	88	but not always. */
	89
	90	#define DECR_PC_AFTER_BREAK 0
	91
	92	/* Nonzero if instruction at PC is a return instruction. */
	93
	94	#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x40)
	95
	96	/* Return 1 if P points to an invalid floating point value.
	97	LEN is the length in bytes -- not relevant on the Tahoe. */
	98
	99	#define INVALID_FLOAT(p, len) (((short ) p & 0xff80) == 0x8000)
	100
	101	/* Say how long (ordinary) registers are. */
	102
	103	#define REGISTER_TYPE long
	104
	105	/* Number of machine registers */
	106
	107	#define NUM_REGS 19
	108
	109	/* Initializer for an array of names of registers.
	110	There should be NUM_REGS strings in this initializer. */
	111
	112	#define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "fp", "sp", "pc", "ps", "al", "ah"}
	113
	114	#define FP_REGNUM 13 /* Contains address of executing stack frame */
	115	#define SP_REGNUM 14 /* Contains address of top of stack */
	116	#define PC_REGNUM 15 /* Contains program counter */
	117	#define PS_REGNUM 16 /* Contains processor status */
	118
	119	#define AL_REGNUM 17 /* Contains accumulator */
	120	#define AH_REGNUM 18
	121
	122	/* Total amount of space needed to store our copies of the machine's
	123	register state, the array `registers'. */
	124
	125	#define REGISTER_BYTES (19*4)
	126
	127	/* Index within `registers' of the first byte of the space for
	128	register N. */
	129
	130	#define REGISTER_BYTE(N) ((N) * 4)
	131
	132	/* Number of bytes of storage in the actual machine representation
133	for register N. On the tahoe, all regs are 4 bytes. */
134
135	#define REGISTER_RAW_SIZE(N) 4
136
137	/* Number of bytes of storage in the program's representation
138	for register N. On the tahoe, all regs are 4 bytes. */
139
140	#define REGISTER_VIRTUAL_SIZE(N) 4
141
142	/* Largest value REGISTER_RAW_SIZE can have. */
143
144	#define MAX_REGISTER_RAW_SIZE 4
145
146	/* Largest value REGISTER_VIRTUAL_SIZE can have. */
147
148	#define MAX_REGISTER_VIRTUAL_SIZE 4
149
150	/* Nonzero if register N requires conversion
151	from raw format to virtual format. */
152
153	#define REGISTER_CONVERTIBLE(N) 0
154
155	/* Convert data from raw format for register REGNUM
156	to virtual format for register REGNUM. */
157
158	#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
159	bcopy ((FROM), (TO), 4);
160
161	/* Convert data from virtual format for register REGNUM
162	to raw format for register REGNUM. */
163
164	#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
165	bcopy ((FROM), (TO), 4);
166
167	/* Return the GDB type object for the "standard" data type
168	of data in register N. */
169
170	#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
171
172	/* Store the address of the place in which to copy the structure the
173	subroutine will return. This is called from call_function. */
174
175	#define STORE_STRUCT_RETURN(ADDR, SP) \
176	{ write_register (1, (ADDR)); }
177
178	/* Extract from an array REGBUF containing the (raw) register state
179	a function return value of type TYPE, and copy that, in virtual format,
180	into VALBUF. */
181
182	#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
183	bcopy (REGBUF, VALBUF, TYPE_LENGTH (TYPE))
184
185	/* Write into appropriate registers a function return value
186	of type TYPE, given in virtual format. */
187
188	#define STORE_RETURN_VALUE(TYPE,VALBUF) \
189	write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
190
191	/* Extract from an array REGBUF containing the (raw) register state
192	the address in which a function should return its structure value,
193	as a CORE_ADDR (or an expression that can be used as one). */
194
195	#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) ((int )(REGBUF))
196
197	/* Describe the pointer in each stack frame to the previous stack frame
198	(its caller).
199
200	FRAME_CHAIN takes a frame's nominal address
5e2e79f8	201	and produces the frame's chain-pointer. */
cb173f45 JK	202
	203	/* In the case of the Tahoe, the frame's nominal address is the FP value,
	204	and it points to the old FP */
	205
	206	#define FRAME_CHAIN(thisframe) \
5e2e79f8	207	(!inside_entry_file ((thisframe)->pc) ? \
cb173f45 JK	208	read_memory_integer ((thisframe)->frame, 4) :\
	209	0)
	210
cb173f45 JK	211	/* Define other aspects of the stack frame. */
	212
	213	/* Saved PC */
	214
	215	#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4))
	216
	217	/* In most of GDB, getting the args address is too important to
	218	just say "I don't know". */
	219
b68da3b8	220	#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
cb173f45 JK	221
	222	/* Address to use as an anchor for finding local variables */
	223
	224	#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
	225
	226	/* Return number of args passed to a frame.
	227	Can return -1, meaning no way to tell. */
	228
	229	#define FRAME_NUM_ARGS(numargs, fi) \
	230	{ numargs = ((0xffff & read_memory_integer(((fi)->frame-4),4)) - 4) >> 2; }
	231
	232	/* Return number of bytes at start of arglist that are not really args. */
	233
	234	#define FRAME_ARGS_SKIP 0
	235
	236	/* Put here the code to store, into a struct frame_saved_regs,
	237	the addresses of the saved registers of frame described by FRAME_INFO.
	238	This includes special registers such as pc and fp saved in special
	239	ways in the stack frame. sp is even more special:
	240	the address we return for it IS the sp for the next frame. */
	241
	242	#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
	243	{ register int regnum; \
	244	register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\
	245	register CORE_ADDR next_addr; \
	246	bzero (&frame_saved_regs, sizeof frame_saved_regs); \
	247	next_addr = (frame_info)->frame - 8; \
	248	for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1) \
	249	(frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\
	250	(frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4; \
	251	(frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8; \
	252	(frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
	253	}
	254
	255	/* Things needed for making the inferior call functions. */
	256
	257	/* Push an empty stack frame, to record the current PC, etc. */
	258
	259	#define PUSH_DUMMY_FRAME \
	260	{ register CORE_ADDR sp = read_register (SP_REGNUM); \
	261	register int regnum; \
	262	printf("PUSH_DUMMY_FRAME\n"); \
	263	sp = push_word (sp, read_register (FP_REGNUM)); \
	264	write_register (FP_REGNUM, sp); \
	265	sp = push_word (sp, 0x1fff0004); /SAVE MASK/ \
	266	sp = push_word (sp, read_register (PC_REGNUM)); \
	267	for (regnum = 12; regnum >= 0; regnum--) \
	268	sp = push_word (sp, read_register (regnum)); \
	269	write_register (SP_REGNUM, sp); \
	270	}
	271
	272	/* Discard from the stack the innermost frame, restoring all registers. */
	273
	274	#define POP_FRAME \
	275	{ register CORE_ADDR fp = read_register (FP_REGNUM); \
	276	register int regnum; \
	277	register int regmask = read_memory_integer (fp-4, 4); \
	278	printf("POP_FRAME\n"); \
	279	regmask >>= 16; \
	280	write_register (SP_REGNUM, fp+4); \
	281	write_register (PC_REGNUM, read_memory_integer(fp-8, 4)); \
	282	write_register (FP_REGNUM, read_memory_integer(fp, 4)); \
	283	fp -= 8; \
	284	for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1) \
285	if (regmask & 0x1000) \
286	write_register (regnum, read_memory_integer (fp-=4, 4)); \
287	flush_cached_frames (); \
288	set_current_frame (create_new_frame (read_register (FP_REGNUM), \
289	read_pc ())); }
290
291	/* This sequence of words is the instructions
292	calls #69, @#32323232
293	bpt
294	Note this is 8 bytes. */
295
296	#define CALL_DUMMY {0xbf699f32, 0x32323230}
297
298	/* Start execution at beginning of dummy */
299
300	#define CALL_DUMMY_START_OFFSET 0
301
302	/* Insert the specified number of args and function address
303	into a call sequence of the above form stored at DUMMYNAME. */
304
0c540082	305	#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, valtype, using_gcc) \
cb173f45 JK	306	{ int temp = (int) fun; \
	307	((char ) dummyname + 1) = nargs; \
	308	bcopy(&temp,(char *)dummyname+3,4); }
	309