[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 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

/* Define this if the C compiler puts an underscore at the front
   of external names before giving them to the linker.  */

#define NAMES_HAVE_UNDERSCORE

/* 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.
3de61d8c	2	Copyright 1986, 1987, 1989, 1991, 1992 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
	28	/* Define this if the C compiler puts an underscore at the front
	29	of external names before giving them to the linker. */
	30
	31	#define NAMES_HAVE_UNDERSCORE
	32
cb173f45 JK	33	/* Offset from address of function to start of its code.
	34	Zero on most machines. */
	35
	36	#define FUNCTION_START_OFFSET 2
	37
	38	/* Advance PC across any function entry prologue instructions
	39	to reach some "real" code. */
	40
	41	#define SKIP_PROLOGUE(pc) \
	42	{ register int op = (unsigned char) read_memory_integer (pc, 1); \
	43	if (op == 0x11) pc += 2; /* skip brb */ \
	44	if (op == 0x13) pc += 3; /* skip brw */ \
	45	if (op == 0x2c && \
	46	((unsigned char) read_memory_integer (pc+2, 1)) == 0x5e) \
	47	pc += 3; /* skip subl2 */ \
	48	if (op == 0xe9 && \
	49	((unsigned char) read_memory_integer (pc+1, 1)) == 0xae && \
	50	((unsigned char) read_memory_integer(pc+3, 1)) == 0x5e) \
	51	pc += 4; /* skip movab */ \
	52	if (op == 0xe9 && \
	53	((unsigned char) read_memory_integer (pc+1, 1)) == 0xce && \
	54	((unsigned char) read_memory_integer(pc+4, 1)) == 0x5e) \
	55	pc += 5; /* skip movab */ \
	56	if (op == 0xe9 && \
	57	((unsigned char) read_memory_integer (pc+1, 1)) == 0xee && \
	58	((unsigned char) read_memory_integer(pc+6, 1)) == 0x5e) \
	59	pc += 7; /* skip movab */ \
	60	}
	61
	62	/* Immediately after a function call, return the saved pc.
	63	Can't always go through the frames for this because on some machines
	64	the new frame is not set up until the new function executes
	65	some instructions. */
	66
	67	#define SAVED_PC_AFTER_CALL(frame) FRAME_SAVED_PC(frame)
	68
	69	/* Wrong for cross-debugging. I don't know the real values. */
0c540082	70	#include <machine/param.h>
cb173f45 JK	71	#define TARGET_UPAGES UPAGES
	72	#define TARGET_NBPG NBPG
	73
cb173f45 JK	74	/* Address of end of stack space. */
	75
	76	#define STACK_END_ADDR (0xc0000000 - (TARGET_UPAGES * TARGET_NBPG))
	77
	78	/* On BSD, sigtramp is in the u area. Can't check the exact
	79	addresses because for cross-debugging we don't have target include
	80	files around. This should be close enough. */
	81	#define IN_SIGTRAMP(pc, name) ((pc) >= STACK_END_ADDR && (pc < 0xc0000000))
	82
	83	/* Stack grows downward. */
	84
	85	#define INNER_THAN <
	86
	87	/* Sequence of bytes for breakpoint instruction. */
	88
	89	#define BREAKPOINT {0x30}
	90
	91	/* Amount PC must be decremented by after a breakpoint.
	92	This is often the number of bytes in BREAKPOINT
	93	but not always. */
	94
	95	#define DECR_PC_AFTER_BREAK 0
	96
	97	/* Nonzero if instruction at PC is a return instruction. */
	98
	99	#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0x40)
	100
	101	/* Return 1 if P points to an invalid floating point value.
	102	LEN is the length in bytes -- not relevant on the Tahoe. */
	103
	104	#define INVALID_FLOAT(p, len) (((short ) p & 0xff80) == 0x8000)
	105
	106	/* Say how long (ordinary) registers are. */
	107
	108	#define REGISTER_TYPE long
	109
	110	/* Number of machine registers */
	111
	112	#define NUM_REGS 19
	113
	114	/* Initializer for an array of names of registers.
	115	There should be NUM_REGS strings in this initializer. */
	116
	117	#define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "fp", "sp", "pc", "ps", "al", "ah"}
	118
	119	#define FP_REGNUM 13 /* Contains address of executing stack frame */
	120	#define SP_REGNUM 14 /* Contains address of top of stack */
	121	#define PC_REGNUM 15 /* Contains program counter */
	122	#define PS_REGNUM 16 /* Contains processor status */
	123
	124	#define AL_REGNUM 17 /* Contains accumulator */
	125	#define AH_REGNUM 18
	126
	127	/* Total amount of space needed to store our copies of the machine's
	128	register state, the array `registers'. */
	129
	130	#define REGISTER_BYTES (19*4)
	131
	132	/* Index within `registers' of the first byte of the space for
	133	register N. */
	134
	135	#define REGISTER_BYTE(N) ((N) * 4)
	136
	137	/* Number of bytes of storage in the actual machine representation
138	for register N. On the tahoe, all regs are 4 bytes. */
139
140	#define REGISTER_RAW_SIZE(N) 4
141
142	/* Number of bytes of storage in the program's representation
143	for register N. On the tahoe, all regs are 4 bytes. */
144
145	#define REGISTER_VIRTUAL_SIZE(N) 4
146
147	/* Largest value REGISTER_RAW_SIZE can have. */
148
149	#define MAX_REGISTER_RAW_SIZE 4
150
151	/* Largest value REGISTER_VIRTUAL_SIZE can have. */
152
153	#define MAX_REGISTER_VIRTUAL_SIZE 4
154
155	/* Nonzero if register N requires conversion
156	from raw format to virtual format. */
157
158	#define REGISTER_CONVERTIBLE(N) 0
159
160	/* Convert data from raw format for register REGNUM
161	to virtual format for register REGNUM. */
162
163	#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
164	bcopy ((FROM), (TO), 4);
165
166	/* Convert data from virtual format for register REGNUM
167	to raw format for register REGNUM. */
168
169	#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
170	bcopy ((FROM), (TO), 4);
171
172	/* Return the GDB type object for the "standard" data type
173	of data in register N. */
174
175	#define REGISTER_VIRTUAL_TYPE(N) builtin_type_int
176
177	/* Store the address of the place in which to copy the structure the
178	subroutine will return. This is called from call_function. */
179
180	#define STORE_STRUCT_RETURN(ADDR, SP) \
181	{ write_register (1, (ADDR)); }
182
183	/* Extract from an array REGBUF containing the (raw) register state
184	a function return value of type TYPE, and copy that, in virtual format,
185	into VALBUF. */
186
187	#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
188	bcopy (REGBUF, VALBUF, TYPE_LENGTH (TYPE))
189
190	/* Write into appropriate registers a function return value
191	of type TYPE, given in virtual format. */
192
193	#define STORE_RETURN_VALUE(TYPE,VALBUF) \
194	write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
195
196	/* Extract from an array REGBUF containing the (raw) register state
197	the address in which a function should return its structure value,
198	as a CORE_ADDR (or an expression that can be used as one). */
199
200	#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) ((int )(REGBUF))
201
202	/* Describe the pointer in each stack frame to the previous stack frame
203	(its caller).
204
205	FRAME_CHAIN takes a frame's nominal address
5e2e79f8	206	and produces the frame's chain-pointer. */
cb173f45 JK	207
	208	/* In the case of the Tahoe, the frame's nominal address is the FP value,
	209	and it points to the old FP */
	210
	211	#define FRAME_CHAIN(thisframe) \
5e2e79f8	212	(!inside_entry_file ((thisframe)->pc) ? \
cb173f45 JK	213	read_memory_integer ((thisframe)->frame, 4) :\
	214	0)
	215
cb173f45 JK	216	/* Define other aspects of the stack frame. */
	217
	218	/* Saved PC */
	219
	220	#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame - 8, 4))
	221
	222	/* In most of GDB, getting the args address is too important to
	223	just say "I don't know". */
	224
b68da3b8	225	#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
cb173f45 JK	226
	227	/* Address to use as an anchor for finding local variables */
	228
	229	#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
	230
	231	/* Return number of args passed to a frame.
	232	Can return -1, meaning no way to tell. */
	233
	234	#define FRAME_NUM_ARGS(numargs, fi) \
	235	{ numargs = ((0xffff & read_memory_integer(((fi)->frame-4),4)) - 4) >> 2; }
	236
	237	/* Return number of bytes at start of arglist that are not really args. */
	238
	239	#define FRAME_ARGS_SKIP 0
	240
	241	/* Put here the code to store, into a struct frame_saved_regs,
	242	the addresses of the saved registers of frame described by FRAME_INFO.
	243	This includes special registers such as pc and fp saved in special
	244	ways in the stack frame. sp is even more special:
	245	the address we return for it IS the sp for the next frame. */
	246
	247	#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
	248	{ register int regnum; \
	249	register int rmask = read_memory_integer ((frame_info)->frame-4, 4) >> 16;\
	250	register CORE_ADDR next_addr; \
	251	bzero (&frame_saved_regs, sizeof frame_saved_regs); \
	252	next_addr = (frame_info)->frame - 8; \
	253	for (regnum = 12; regnum >= 0; regnum--, rmask <<= 1) \
	254	(frame_saved_regs).regs[regnum] = (rmask & 0x1000) ? (next_addr -= 4) : 0;\
	255	(frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4; \
	256	(frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame - 8; \
	257	(frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
	258	}
	259
	260	/* Things needed for making the inferior call functions. */
	261
	262	/* Push an empty stack frame, to record the current PC, etc. */
	263
	264	#define PUSH_DUMMY_FRAME \
	265	{ register CORE_ADDR sp = read_register (SP_REGNUM); \
	266	register int regnum; \
	267	printf("PUSH_DUMMY_FRAME\n"); \
	268	sp = push_word (sp, read_register (FP_REGNUM)); \
	269	write_register (FP_REGNUM, sp); \
	270	sp = push_word (sp, 0x1fff0004); /SAVE MASK/ \
	271	sp = push_word (sp, read_register (PC_REGNUM)); \
	272	for (regnum = 12; regnum >= 0; regnum--) \
	273	sp = push_word (sp, read_register (regnum)); \
	274	write_register (SP_REGNUM, sp); \
	275	}
	276
	277	/* Discard from the stack the innermost frame, restoring all registers. */
	278
	279	#define POP_FRAME \
	280	{ register CORE_ADDR fp = read_register (FP_REGNUM); \
	281	register int regnum; \
	282	register int regmask = read_memory_integer (fp-4, 4); \
	283	printf("POP_FRAME\n"); \
	284	regmask >>= 16; \
	285	write_register (SP_REGNUM, fp+4); \
	286	write_register (PC_REGNUM, read_memory_integer(fp-8, 4)); \
	287	write_register (FP_REGNUM, read_memory_integer(fp, 4)); \
	288	fp -= 8; \
	289	for (regnum = 12; regnum >= 0; regnum--, regmask <<= 1) \
290	if (regmask & 0x1000) \
291	write_register (regnum, read_memory_integer (fp-=4, 4)); \
292	flush_cached_frames (); \
293	set_current_frame (create_new_frame (read_register (FP_REGNUM), \
294	read_pc ())); }
295
296	/* This sequence of words is the instructions
297	calls #69, @#32323232
298	bpt
299	Note this is 8 bytes. */
300
301	#define CALL_DUMMY {0xbf699f32, 0x32323230}
302
303	/* Start execution at beginning of dummy */
304
305	#define CALL_DUMMY_START_OFFSET 0
306
307	/* Insert the specified number of args and function address
308	into a call sequence of the above form stored at DUMMYNAME. */
309
0c540082	310	#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, valtype, using_gcc) \
cb173f45 JK	311	{ int temp = (int) fun; \
	312	((char ) dummyname + 1) = nargs; \
	313	bcopy(&temp,(char *)dummyname+3,4); }
	314