mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
619 lines
19 KiB
C
619 lines
19 KiB
C
/* Target-dependent code for the Fujitsu FR30.
|
|
Copyright 1999, Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "frame.h"
|
|
#include "inferior.h"
|
|
#include "obstack.h"
|
|
#include "target.h"
|
|
#include "value.h"
|
|
#include "bfd.h"
|
|
#include "gdb_string.h"
|
|
#include "gdbcore.h"
|
|
#include "symfile.h"
|
|
|
|
/* An expression that tells us whether the function invocation represented
|
|
by FI does not have a frame on the stack associated with it. */
|
|
int
|
|
fr30_frameless_function_invocation (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
int frameless;
|
|
CORE_ADDR func_start, after_prologue;
|
|
func_start = (get_pc_function_start ((fi)->pc) +
|
|
FUNCTION_START_OFFSET);
|
|
after_prologue = func_start;
|
|
after_prologue = SKIP_PROLOGUE (after_prologue);
|
|
frameless = (after_prologue == func_start);
|
|
return frameless;
|
|
}
|
|
|
|
/* Function: pop_frame
|
|
This routine gets called when either the user uses the `return'
|
|
command, or the call dummy breakpoint gets hit. */
|
|
|
|
void
|
|
fr30_pop_frame ()
|
|
{
|
|
struct frame_info *frame = get_current_frame ();
|
|
int regnum;
|
|
CORE_ADDR sp = read_register (SP_REGNUM);
|
|
|
|
if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
|
|
generic_pop_dummy_frame ();
|
|
else
|
|
{
|
|
write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
|
|
|
|
for (regnum = 0; regnum < NUM_REGS; regnum++)
|
|
if (frame->fsr.regs[regnum] != 0)
|
|
{
|
|
write_register (regnum,
|
|
read_memory_unsigned_integer (frame->fsr.regs[regnum],
|
|
REGISTER_RAW_SIZE (regnum)));
|
|
}
|
|
write_register (SP_REGNUM, sp + frame->framesize);
|
|
}
|
|
flush_cached_frames ();
|
|
}
|
|
|
|
|
|
/* Function: fr30_store_return_value
|
|
Put a value where a caller expects to see it. Used by the 'return'
|
|
command. */
|
|
void
|
|
fr30_store_return_value (struct type *type,
|
|
char *valbuf)
|
|
{
|
|
/* Here's how the FR30 returns values (gleaned from gcc/config/
|
|
fr30/fr30.h):
|
|
|
|
If the return value is 32 bits long or less, it goes in r4.
|
|
|
|
If the return value is 64 bits long or less, it goes in r4 (most
|
|
significant word) and r5 (least significant word.
|
|
|
|
If the function returns a structure, of any size, the caller
|
|
passes the function an invisible first argument where the callee
|
|
should store the value. But GDB doesn't let you do that anyway.
|
|
|
|
If you're returning a value smaller than a word, it's not really
|
|
necessary to zero the upper bytes of the register; the caller is
|
|
supposed to ignore them. However, the FR30 typically keeps its
|
|
values extended to the full register width, so we should emulate
|
|
that. */
|
|
|
|
/* The FR30 is big-endian, so if we return a small value (like a
|
|
short or a char), we need to position it correctly within the
|
|
register. We round the size up to a register boundary, and then
|
|
adjust the offset so as to place the value at the right end. */
|
|
int value_size = TYPE_LENGTH (type);
|
|
int returned_size = (value_size + FR30_REGSIZE - 1) & ~(FR30_REGSIZE - 1);
|
|
int offset = (REGISTER_BYTE (RETVAL_REG)
|
|
+ (returned_size - value_size));
|
|
char *zeros = alloca (returned_size);
|
|
memset (zeros, 0, returned_size);
|
|
|
|
write_register_bytes (REGISTER_BYTE (RETVAL_REG), zeros, returned_size);
|
|
write_register_bytes (offset, valbuf, value_size);
|
|
}
|
|
|
|
|
|
/* Function: skip_prologue
|
|
Return the address of the first code past the prologue of the function. */
|
|
|
|
CORE_ADDR
|
|
fr30_skip_prologue (CORE_ADDR pc)
|
|
{
|
|
CORE_ADDR func_addr, func_end;
|
|
|
|
/* See what the symbol table says */
|
|
|
|
if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
|
|
{
|
|
struct symtab_and_line sal;
|
|
|
|
sal = find_pc_line (func_addr, 0);
|
|
|
|
if (sal.line != 0 && sal.end < func_end)
|
|
{
|
|
return sal.end;
|
|
}
|
|
}
|
|
|
|
/* Either we didn't find the start of this function (nothing we can do),
|
|
or there's no line info, or the line after the prologue is after
|
|
the end of the function (there probably isn't a prologue). */
|
|
|
|
return pc;
|
|
}
|
|
|
|
|
|
/* Function: push_arguments
|
|
Setup arguments and RP for a call to the target. First four args
|
|
go in FIRST_ARGREG -> LAST_ARGREG, subsequent args go on stack...
|
|
Structs are passed by reference. XXX not right now Z.R.
|
|
64 bit quantities (doubles and long longs) may be split between
|
|
the regs and the stack.
|
|
When calling a function that returns a struct, a pointer to the struct
|
|
is passed in as a secret first argument (always in FIRST_ARGREG).
|
|
|
|
Stack space for the args has NOT been allocated: that job is up to us.
|
|
*/
|
|
|
|
CORE_ADDR
|
|
fr30_push_arguments (nargs, args, sp, struct_return, struct_addr)
|
|
int nargs;
|
|
value_ptr *args;
|
|
CORE_ADDR sp;
|
|
int struct_return;
|
|
CORE_ADDR struct_addr;
|
|
{
|
|
int argreg;
|
|
int argnum;
|
|
int stack_offset;
|
|
struct stack_arg
|
|
{
|
|
char *val;
|
|
int len;
|
|
int offset;
|
|
};
|
|
struct stack_arg *stack_args =
|
|
(struct stack_arg *) alloca (nargs * sizeof (struct stack_arg));
|
|
int nstack_args = 0;
|
|
|
|
argreg = FIRST_ARGREG;
|
|
|
|
/* the struct_return pointer occupies the first parameter-passing reg */
|
|
if (struct_return)
|
|
write_register (argreg++, struct_addr);
|
|
|
|
stack_offset = 0;
|
|
|
|
/* Process args from left to right. Store as many as allowed in
|
|
registers, save the rest to be pushed on the stack */
|
|
for (argnum = 0; argnum < nargs; argnum++)
|
|
{
|
|
char *val;
|
|
value_ptr arg = args[argnum];
|
|
struct type *arg_type = check_typedef (VALUE_TYPE (arg));
|
|
struct type *target_type = TYPE_TARGET_TYPE (arg_type);
|
|
int len = TYPE_LENGTH (arg_type);
|
|
enum type_code typecode = TYPE_CODE (arg_type);
|
|
CORE_ADDR regval;
|
|
int newarg;
|
|
|
|
val = (char *) VALUE_CONTENTS (arg);
|
|
|
|
{
|
|
/* Copy the argument to general registers or the stack in
|
|
register-sized pieces. Large arguments are split between
|
|
registers and stack. */
|
|
while (len > 0)
|
|
{
|
|
if (argreg <= LAST_ARGREG)
|
|
{
|
|
int partial_len = len < REGISTER_SIZE ? len : REGISTER_SIZE;
|
|
regval = extract_address (val, partial_len);
|
|
|
|
/* It's a simple argument being passed in a general
|
|
register. */
|
|
write_register (argreg, regval);
|
|
argreg++;
|
|
len -= partial_len;
|
|
val += partial_len;
|
|
}
|
|
else
|
|
{
|
|
/* keep for later pushing */
|
|
stack_args[nstack_args].val = val;
|
|
stack_args[nstack_args++].len = len;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* now do the real stack pushing, process args right to left */
|
|
while (nstack_args--)
|
|
{
|
|
sp -= stack_args[nstack_args].len;
|
|
write_memory (sp, stack_args[nstack_args].val,
|
|
stack_args[nstack_args].len);
|
|
}
|
|
|
|
/* Return adjusted stack pointer. */
|
|
return sp;
|
|
}
|
|
|
|
void _initialize_fr30_tdep PARAMS ((void));
|
|
|
|
void
|
|
_initialize_fr30_tdep ()
|
|
{
|
|
extern int print_insn_fr30 (bfd_vma, disassemble_info *);
|
|
tm_print_insn = print_insn_fr30;
|
|
}
|
|
|
|
/* Function: check_prologue_cache
|
|
Check if prologue for this frame's PC has already been scanned.
|
|
If it has, copy the relevant information about that prologue and
|
|
return non-zero. Otherwise do not copy anything and return zero.
|
|
|
|
The information saved in the cache includes:
|
|
* the frame register number;
|
|
* the size of the stack frame;
|
|
* the offsets of saved regs (relative to the old SP); and
|
|
* the offset from the stack pointer to the frame pointer
|
|
|
|
The cache contains only one entry, since this is adequate
|
|
for the typical sequence of prologue scan requests we get.
|
|
When performing a backtrace, GDB will usually ask to scan
|
|
the same function twice in a row (once to get the frame chain,
|
|
and once to fill in the extra frame information).
|
|
*/
|
|
|
|
static struct frame_info prologue_cache;
|
|
|
|
static int
|
|
check_prologue_cache (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
int i;
|
|
|
|
if (fi->pc == prologue_cache.pc)
|
|
{
|
|
fi->framereg = prologue_cache.framereg;
|
|
fi->framesize = prologue_cache.framesize;
|
|
fi->frameoffset = prologue_cache.frameoffset;
|
|
for (i = 0; i <= NUM_REGS; i++)
|
|
fi->fsr.regs[i] = prologue_cache.fsr.regs[i];
|
|
return 1;
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Function: save_prologue_cache
|
|
Copy the prologue information from fi to the prologue cache.
|
|
*/
|
|
|
|
static void
|
|
save_prologue_cache (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
int i;
|
|
|
|
prologue_cache.pc = fi->pc;
|
|
prologue_cache.framereg = fi->framereg;
|
|
prologue_cache.framesize = fi->framesize;
|
|
prologue_cache.frameoffset = fi->frameoffset;
|
|
|
|
for (i = 0; i <= NUM_REGS; i++)
|
|
{
|
|
prologue_cache.fsr.regs[i] = fi->fsr.regs[i];
|
|
}
|
|
}
|
|
|
|
|
|
/* Function: scan_prologue
|
|
Scan the prologue of the function that contains PC, and record what
|
|
we find in PI. PI->fsr must be zeroed by the called. Returns the
|
|
pc after the prologue. Note that the addresses saved in pi->fsr
|
|
are actually just frame relative (negative offsets from the frame
|
|
pointer). This is because we don't know the actual value of the
|
|
frame pointer yet. In some circumstances, the frame pointer can't
|
|
be determined till after we have scanned the prologue. */
|
|
|
|
static void
|
|
fr30_scan_prologue (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
int sp_offset, fp_offset;
|
|
CORE_ADDR prologue_start, prologue_end, current_pc;
|
|
|
|
/* Check if this function is already in the cache of frame information. */
|
|
if (check_prologue_cache (fi))
|
|
return;
|
|
|
|
/* Assume there is no frame until proven otherwise. */
|
|
fi->framereg = SP_REGNUM;
|
|
fi->framesize = 0;
|
|
fi->frameoffset = 0;
|
|
|
|
/* Find the function prologue. If we can't find the function in
|
|
the symbol table, peek in the stack frame to find the PC. */
|
|
if (find_pc_partial_function (fi->pc, NULL, &prologue_start, &prologue_end))
|
|
{
|
|
/* Assume the prologue is everything between the first instruction
|
|
in the function and the first source line. */
|
|
struct symtab_and_line sal = find_pc_line (prologue_start, 0);
|
|
|
|
if (sal.line == 0) /* no line info, use current PC */
|
|
prologue_end = fi->pc;
|
|
else if (sal.end < prologue_end) /* next line begins after fn end */
|
|
prologue_end = sal.end; /* (probably means no prologue) */
|
|
}
|
|
else
|
|
{
|
|
/* XXX Z.R. What now??? The following is entirely bogus */
|
|
prologue_start = (read_memory_integer (fi->frame, 4) & 0x03fffffc) - 12;
|
|
prologue_end = prologue_start + 40;
|
|
}
|
|
|
|
/* Now search the prologue looking for instructions that set up the
|
|
frame pointer, adjust the stack pointer, and save registers. */
|
|
|
|
sp_offset = fp_offset = 0;
|
|
for (current_pc = prologue_start; current_pc < prologue_end; current_pc += 2)
|
|
{
|
|
unsigned int insn;
|
|
|
|
insn = read_memory_unsigned_integer (current_pc, 2);
|
|
|
|
if ((insn & 0xfe00) == 0x8e00) /* stm0 or stm1 */
|
|
{
|
|
int reg, mask = insn & 0xff;
|
|
|
|
/* scan in one sweep - create virtual 16-bit mask from either insn's mask */
|
|
if ((insn & 0x0100) == 0)
|
|
{
|
|
mask <<= 8; /* stm0 - move to upper byte in virtual mask */
|
|
}
|
|
|
|
/* Calculate offsets of saved registers (to be turned later into addresses). */
|
|
for (reg = R4_REGNUM; reg <= R11_REGNUM; reg++)
|
|
if (mask & (1 << (15 - reg)))
|
|
{
|
|
sp_offset -= 4;
|
|
fi->fsr.regs[reg] = sp_offset;
|
|
}
|
|
}
|
|
else if ((insn & 0xfff0) == 0x1700) /* st rx,@-r15 */
|
|
{
|
|
int reg = insn & 0xf;
|
|
|
|
sp_offset -= 4;
|
|
fi->fsr.regs[reg] = sp_offset;
|
|
}
|
|
else if ((insn & 0xff00) == 0x0f00) /* enter */
|
|
{
|
|
fp_offset = fi->fsr.regs[FP_REGNUM] = sp_offset - 4;
|
|
sp_offset -= 4 * (insn & 0xff);
|
|
fi->framereg = FP_REGNUM;
|
|
}
|
|
else if (insn == 0x1781) /* st rp,@-sp */
|
|
{
|
|
sp_offset -= 4;
|
|
fi->fsr.regs[RP_REGNUM] = sp_offset;
|
|
}
|
|
else if (insn == 0x170e) /* st fp,@-sp */
|
|
{
|
|
sp_offset -= 4;
|
|
fi->fsr.regs[FP_REGNUM] = sp_offset;
|
|
}
|
|
else if (insn == 0x8bfe) /* mov sp,fp */
|
|
{
|
|
fi->framereg = FP_REGNUM;
|
|
}
|
|
else if ((insn & 0xff00) == 0xa300) /* addsp xx */
|
|
{
|
|
sp_offset += 4 * (signed char) (insn & 0xff);
|
|
}
|
|
else if ((insn & 0xff0f) == 0x9b00 && /* ldi:20 xx,r0 */
|
|
read_memory_unsigned_integer (current_pc + 4, 2)
|
|
== 0xac0f) /* sub r0,sp */
|
|
{
|
|
/* large stack adjustment */
|
|
sp_offset -= (((insn & 0xf0) << 12) | read_memory_unsigned_integer (current_pc + 2, 2));
|
|
current_pc += 4;
|
|
}
|
|
else if (insn == 0x9f80 && /* ldi:32 xx,r0 */
|
|
read_memory_unsigned_integer (current_pc + 6, 2)
|
|
== 0xac0f) /* sub r0,sp */
|
|
{
|
|
/* large stack adjustment */
|
|
sp_offset -=
|
|
(read_memory_unsigned_integer (current_pc + 2, 2) << 16 |
|
|
read_memory_unsigned_integer (current_pc + 4, 2));
|
|
current_pc += 6;
|
|
}
|
|
}
|
|
|
|
/* The frame size is just the negative of the offset (from the original SP)
|
|
of the last thing thing we pushed on the stack. The frame offset is
|
|
[new FP] - [new SP]. */
|
|
fi->framesize = -sp_offset;
|
|
fi->frameoffset = fp_offset - sp_offset;
|
|
|
|
save_prologue_cache (fi);
|
|
}
|
|
|
|
/* Function: init_extra_frame_info
|
|
Setup the frame's frame pointer, pc, and frame addresses for saved
|
|
registers. Most of the work is done in scan_prologue().
|
|
|
|
Note that when we are called for the last frame (currently active frame),
|
|
that fi->pc and fi->frame will already be setup. However, fi->frame will
|
|
be valid only if this routine uses FP. For previous frames, fi-frame will
|
|
always be correct (since that is derived from fr30_frame_chain ()).
|
|
|
|
We can be called with the PC in the call dummy under two circumstances.
|
|
First, during normal backtracing, second, while figuring out the frame
|
|
pointer just prior to calling the target function (see run_stack_dummy). */
|
|
|
|
void
|
|
fr30_init_extra_frame_info (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
int reg;
|
|
|
|
if (fi->next)
|
|
fi->pc = FRAME_SAVED_PC (fi->next);
|
|
|
|
memset (fi->fsr.regs, '\000', sizeof fi->fsr.regs);
|
|
|
|
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
|
|
{
|
|
/* We need to setup fi->frame here because run_stack_dummy gets it wrong
|
|
by assuming it's always FP. */
|
|
fi->frame = generic_read_register_dummy (fi->pc, fi->frame, SP_REGNUM);
|
|
fi->framesize = 0;
|
|
fi->frameoffset = 0;
|
|
return;
|
|
}
|
|
fr30_scan_prologue (fi);
|
|
|
|
if (!fi->next) /* this is the innermost frame? */
|
|
fi->frame = read_register (fi->framereg);
|
|
else
|
|
/* not the innermost frame */
|
|
/* If we have an FP, the callee saved it. */ if (fi->framereg == FP_REGNUM)
|
|
if (fi->next->fsr.regs[fi->framereg] != 0)
|
|
fi->frame = read_memory_integer (fi->next->fsr.regs[fi->framereg],
|
|
4);
|
|
/* Calculate actual addresses of saved registers using offsets determined
|
|
by fr30_scan_prologue. */
|
|
for (reg = 0; reg < NUM_REGS; reg++)
|
|
if (fi->fsr.regs[reg] != 0)
|
|
{
|
|
fi->fsr.regs[reg] += fi->frame + fi->framesize - fi->frameoffset;
|
|
}
|
|
}
|
|
|
|
/* Function: find_callers_reg
|
|
Find REGNUM on the stack. Otherwise, it's in an active register.
|
|
One thing we might want to do here is to check REGNUM against the
|
|
clobber mask, and somehow flag it as invalid if it isn't saved on
|
|
the stack somewhere. This would provide a graceful failure mode
|
|
when trying to get the value of caller-saves registers for an inner
|
|
frame. */
|
|
|
|
CORE_ADDR
|
|
fr30_find_callers_reg (fi, regnum)
|
|
struct frame_info *fi;
|
|
int regnum;
|
|
{
|
|
for (; fi; fi = fi->next)
|
|
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
|
|
return generic_read_register_dummy (fi->pc, fi->frame, regnum);
|
|
else if (fi->fsr.regs[regnum] != 0)
|
|
return read_memory_unsigned_integer (fi->fsr.regs[regnum],
|
|
REGISTER_RAW_SIZE (regnum));
|
|
|
|
return read_register (regnum);
|
|
}
|
|
|
|
|
|
/* Function: frame_chain
|
|
Figure out the frame prior to FI. Unfortunately, this involves
|
|
scanning the prologue of the caller, which will also be done
|
|
shortly by fr30_init_extra_frame_info. For the dummy frame, we
|
|
just return the stack pointer that was in use at the time the
|
|
function call was made. */
|
|
|
|
|
|
CORE_ADDR
|
|
fr30_frame_chain (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
CORE_ADDR fn_start, callers_pc, fp;
|
|
struct frame_info caller_fi;
|
|
int framereg;
|
|
|
|
/* is this a dummy frame? */
|
|
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
|
|
return fi->frame; /* dummy frame same as caller's frame */
|
|
|
|
/* is caller-of-this a dummy frame? */
|
|
callers_pc = FRAME_SAVED_PC (fi); /* find out who called us: */
|
|
fp = fr30_find_callers_reg (fi, FP_REGNUM);
|
|
if (PC_IN_CALL_DUMMY (callers_pc, fp, fp))
|
|
return fp; /* dummy frame's frame may bear no relation to ours */
|
|
|
|
if (find_pc_partial_function (fi->pc, 0, &fn_start, 0))
|
|
if (fn_start == entry_point_address ())
|
|
return 0; /* in _start fn, don't chain further */
|
|
|
|
framereg = fi->framereg;
|
|
|
|
/* If the caller is the startup code, we're at the end of the chain. */
|
|
if (find_pc_partial_function (callers_pc, 0, &fn_start, 0))
|
|
if (fn_start == entry_point_address ())
|
|
return 0;
|
|
|
|
memset (&caller_fi, 0, sizeof (caller_fi));
|
|
caller_fi.pc = callers_pc;
|
|
fr30_scan_prologue (&caller_fi);
|
|
framereg = caller_fi.framereg;
|
|
|
|
/* If the caller used a frame register, return its value.
|
|
Otherwise, return the caller's stack pointer. */
|
|
if (framereg == FP_REGNUM)
|
|
return fr30_find_callers_reg (fi, framereg);
|
|
else
|
|
return fi->frame + fi->framesize;
|
|
}
|
|
|
|
/* Function: frame_saved_pc
|
|
Find the caller of this frame. We do this by seeing if RP_REGNUM
|
|
is saved in the stack anywhere, otherwise we get it from the
|
|
registers. If the inner frame is a dummy frame, return its PC
|
|
instead of RP, because that's where "caller" of the dummy-frame
|
|
will be found. */
|
|
|
|
CORE_ADDR
|
|
fr30_frame_saved_pc (fi)
|
|
struct frame_info *fi;
|
|
{
|
|
if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
|
|
return generic_read_register_dummy (fi->pc, fi->frame, PC_REGNUM);
|
|
else
|
|
return fr30_find_callers_reg (fi, RP_REGNUM);
|
|
}
|
|
|
|
/* Function: fix_call_dummy
|
|
Pokes the callee function's address into the CALL_DUMMY assembly stub.
|
|
Assumes that the CALL_DUMMY looks like this:
|
|
jarl <offset24>, r31
|
|
trap
|
|
*/
|
|
|
|
int
|
|
fr30_fix_call_dummy (dummy, sp, fun, nargs, args, type, gcc_p)
|
|
char *dummy;
|
|
CORE_ADDR sp;
|
|
CORE_ADDR fun;
|
|
int nargs;
|
|
value_ptr *args;
|
|
struct type *type;
|
|
int gcc_p;
|
|
{
|
|
long offset24;
|
|
|
|
offset24 = (long) fun - (long) entry_point_address ();
|
|
offset24 &= 0x3fffff;
|
|
offset24 |= 0xff800000; /* jarl <offset24>, r31 */
|
|
|
|
store_unsigned_integer ((unsigned int *) &dummy[2], 2, offset24 & 0xffff);
|
|
store_unsigned_integer ((unsigned int *) &dummy[0], 2, offset24 >> 16);
|
|
return 0;
|
|
}
|