mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-25 02:53:48 +08:00
0dfdb5234a
Note that opcodes is regenerated with cgen commit d1dd5fcc38e reverted,
due to failure of bpf to compile with that patch applied.
.../opcodes/bpf-opc.c:57:11: error: conversion from ‘long unsigned int’ to ‘unsigned int’ changes value from ‘18446744073709486335’ to ‘4294902015’ [-Werror=overflow]
57 | 64, 64, 0xffffffffffff00ff, { { F (F_IMM32) }, { F (F_OFFSET16) }, { F (F_SRCLE) }, { F (F_OP_CODE) }, { F (F_DSTLE) }, { F (F_OP_SRC) }, { F (F_OP_CLASS) }, { 0 } }
plus other similar errors.
cpu/
* mep.opc (print_tpreg, print_spreg): Delete unnecessary
forward declarations. Replace PTR with void *.
* mt.opc (print_dollarhex, print_pcrel): Delete forward decls.
opcodes/
* bpf-desc.c, * bpf-dis.c, * cris-desc.c,
* epiphany-desc.c, * epiphany-dis.c,
* fr30-desc.c, * fr30-dis.c, * frv-desc.c, * frv-dis.c,
* ip2k-desc.c, * ip2k-dis.c, * iq2000-desc.c, * iq2000-dis.c,
* lm32-desc.c, * lm32-dis.c, * m32c-desc.c, * m32c-dis.c,
* m32r-desc.c, * m32r-dis.c, * mep-desc.c, * mep-dis.c,
* mt-desc.c, * mt-dis.c, * or1k-desc.c, * or1k-dis.c,
* xc16x-desc.c, * xc16x-dis.c,
* xstormy16-desc.c, * xstormy16-dis.c: Regenerate.
1617 lines
50 KiB
C
1617 lines
50 KiB
C
/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
|
||
/* Disassembler interface for targets using CGEN. -*- C -*-
|
||
CGEN: Cpu tools GENerator
|
||
|
||
THIS FILE IS MACHINE GENERATED WITH CGEN.
|
||
- the resultant file is machine generated, cgen-dis.in isn't
|
||
|
||
Copyright (C) 1996-2022 Free Software Foundation, Inc.
|
||
|
||
This file is part of libopcodes.
|
||
|
||
This library 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 3, or (at your option)
|
||
any later version.
|
||
|
||
It 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.,
|
||
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
||
|
||
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
|
||
Keep that in mind. */
|
||
|
||
#include "sysdep.h"
|
||
#include <stdio.h>
|
||
#include "ansidecl.h"
|
||
#include "disassemble.h"
|
||
#include "bfd.h"
|
||
#include "symcat.h"
|
||
#include "libiberty.h"
|
||
#include "mep-desc.h"
|
||
#include "mep-opc.h"
|
||
#include "opintl.h"
|
||
|
||
/* Default text to print if an instruction isn't recognized. */
|
||
#define UNKNOWN_INSN_MSG _("*unknown*")
|
||
|
||
static void print_normal
|
||
(CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
|
||
static void print_address
|
||
(CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
|
||
static void print_keyword
|
||
(CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
|
||
static void print_insn_normal
|
||
(CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
|
||
static int print_insn
|
||
(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
|
||
static int default_print_insn
|
||
(CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
|
||
static int read_insn
|
||
(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
|
||
unsigned long *);
|
||
|
||
/* -- disassembler routines inserted here. */
|
||
|
||
/* -- dis.c */
|
||
|
||
#include "elf/mep.h"
|
||
#include "elf-bfd.h"
|
||
|
||
#define CGEN_VALIDATE_INSN_SUPPORTED
|
||
|
||
static void
|
||
print_tpreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, void *dis_info,
|
||
CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
|
||
unsigned int flags ATTRIBUTE_UNUSED)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
|
||
(*info->fprintf_func) (info->stream, "$tp");
|
||
}
|
||
|
||
static void
|
||
print_spreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, void *dis_info,
|
||
CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
|
||
unsigned int flags ATTRIBUTE_UNUSED)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
|
||
(*info->fprintf_func) (info->stream, "$sp");
|
||
}
|
||
|
||
/* begin-cop-ip-print-handlers */
|
||
static void
|
||
print_ivc2_cr (CGEN_CPU_DESC,
|
||
void *,
|
||
CGEN_KEYWORD *,
|
||
long,
|
||
unsigned int) ATTRIBUTE_UNUSED;
|
||
static void
|
||
print_ivc2_cr (CGEN_CPU_DESC cd,
|
||
void *dis_info,
|
||
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
|
||
long value,
|
||
unsigned int attrs)
|
||
{
|
||
print_keyword (cd, dis_info, & mep_cgen_opval_h_cr_ivc2, value, attrs);
|
||
}
|
||
static void
|
||
print_ivc2_ccr (CGEN_CPU_DESC,
|
||
void *,
|
||
CGEN_KEYWORD *,
|
||
long,
|
||
unsigned int) ATTRIBUTE_UNUSED;
|
||
static void
|
||
print_ivc2_ccr (CGEN_CPU_DESC cd,
|
||
void *dis_info,
|
||
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
|
||
long value,
|
||
unsigned int attrs)
|
||
{
|
||
print_keyword (cd, dis_info, & mep_cgen_opval_h_ccr_ivc2, value, attrs);
|
||
}
|
||
/* end-cop-ip-print-handlers */
|
||
|
||
/************************************************************\
|
||
*********************** Experimental *************************
|
||
\************************************************************/
|
||
|
||
#undef CGEN_PRINT_INSN
|
||
#define CGEN_PRINT_INSN mep_print_insn
|
||
|
||
static int
|
||
mep_print_vliw_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info,
|
||
bfd_byte *buf, int corelength, int copro1length,
|
||
int copro2length ATTRIBUTE_UNUSED)
|
||
{
|
||
int i;
|
||
int status = 0;
|
||
/* char insnbuf[CGEN_MAX_INSN_SIZE]; */
|
||
bfd_byte insnbuf[64];
|
||
|
||
/* If corelength > 0 then there is a core insn present. It
|
||
will be at the beginning of the buffer. After printing
|
||
the core insn, we need to print the + on the next line. */
|
||
if (corelength > 0)
|
||
{
|
||
int my_status = 0;
|
||
|
||
for (i = 0; i < corelength; i++ )
|
||
insnbuf[i] = buf[i];
|
||
cd->isas = & MEP_CORE_ISA;
|
||
|
||
my_status = print_insn (cd, pc, info, insnbuf, corelength);
|
||
if (my_status != corelength)
|
||
{
|
||
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
|
||
my_status = corelength;
|
||
}
|
||
status += my_status;
|
||
|
||
/* Print the + to indicate that the following copro insn is */
|
||
/* part of a vliw group. */
|
||
if (copro1length > 0)
|
||
(*info->fprintf_func) (info->stream, " + ");
|
||
}
|
||
|
||
/* Now all that is left to be processed is the coprocessor insns
|
||
In vliw mode, there will always be one. Its positioning will
|
||
be from byte corelength to byte corelength+copro1length -1.
|
||
No need to check for existence. Also, the first vliw insn,
|
||
will, as spec'd, always be at least as long as the core insn
|
||
so we don't need to flush the buffer. */
|
||
if (copro1length > 0)
|
||
{
|
||
int my_status = 0;
|
||
|
||
for (i = corelength; i < corelength + copro1length; i++ )
|
||
insnbuf[i - corelength] = buf[i];
|
||
|
||
switch (copro1length)
|
||
{
|
||
case 0:
|
||
break;
|
||
case 2:
|
||
cd->isas = & MEP_COP16_ISA;
|
||
break;
|
||
case 4:
|
||
cd->isas = & MEP_COP32_ISA;
|
||
break;
|
||
case 6:
|
||
cd->isas = & MEP_COP48_ISA;
|
||
break;
|
||
case 8:
|
||
cd->isas = & MEP_COP64_ISA;
|
||
break;
|
||
default:
|
||
/* Shouldn't be anything but 16,32,48,64. */
|
||
break;
|
||
}
|
||
|
||
my_status = print_insn (cd, pc, info, insnbuf, copro1length);
|
||
|
||
if (my_status != copro1length)
|
||
{
|
||
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
|
||
my_status = copro1length;
|
||
}
|
||
status += my_status;
|
||
}
|
||
|
||
#if 0
|
||
/* Now we need to process the second copro insn if it exists. We
|
||
have no guarantee that the second copro insn will be longer
|
||
than the first, so we have to flush the buffer if we are have
|
||
a second copro insn to process. If present, this insn will
|
||
be in the position from byte corelength+copro1length to byte
|
||
corelength+copro1length+copro2length-1 (which better equal 8
|
||
or else we're in big trouble. */
|
||
if (copro2length > 0)
|
||
{
|
||
int my_status = 0;
|
||
|
||
for (i = 0; i < 64 ; i++)
|
||
insnbuf[i] = 0;
|
||
|
||
for (i = corelength + copro1length; i < 64; i++)
|
||
insnbuf[i - (corelength + copro1length)] = buf[i];
|
||
|
||
switch (copro2length)
|
||
{
|
||
case 2:
|
||
cd->isas = 1 << ISA_EXT_COP1_16;
|
||
break;
|
||
case 4:
|
||
cd->isas = 1 << ISA_EXT_COP1_32;
|
||
break;
|
||
case 6:
|
||
cd->isas = 1 << ISA_EXT_COP1_48;
|
||
break;
|
||
case 8:
|
||
cd->isas = 1 << ISA_EXT_COP1_64;
|
||
break;
|
||
default:
|
||
/* Shouldn't be anything but 16,32,48,64. */
|
||
break;
|
||
}
|
||
|
||
my_status = print_insn (cd, pc, info, insnbuf, copro2length);
|
||
|
||
if (my_status != copro2length)
|
||
{
|
||
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
|
||
my_status = copro2length;
|
||
}
|
||
|
||
status += my_status;
|
||
}
|
||
#endif
|
||
|
||
/* Status should now be the number of bytes that were printed
|
||
which should be 4 for VLIW32 mode and 64 for VLIW64 mode. */
|
||
|
||
if ((!MEP_VLIW64 && (status != 4)) || (MEP_VLIW64 && (status != 8)))
|
||
return -1;
|
||
else
|
||
return status;
|
||
}
|
||
|
||
/* The two functions mep_examine_vliw[32,64]_insns are used find out
|
||
which vliw combinaion (16 bit core with 48 bit copro, 32 bit core
|
||
with 32 bit copro, etc.) is present. Later on, when internally
|
||
parallel coprocessors are handled, only these functions should
|
||
need to be changed.
|
||
|
||
At this time only the following combinations are supported:
|
||
|
||
VLIW32 Mode:
|
||
16 bit core insn (core) and 16 bit coprocessor insn (cop1)
|
||
32 bit core insn (core)
|
||
32 bit coprocessor insn (cop1)
|
||
Note: As of this time, I do not believe we have enough information
|
||
to distinguish a 32 bit core insn from a 32 bit cop insn. Also,
|
||
no 16 bit coprocessor insns have been specified.
|
||
|
||
VLIW64 Mode:
|
||
16 bit core insn (core) and 48 bit coprocessor insn (cop1)
|
||
32 bit core insn (core) and 32 bit coprocessor insn (cop1)
|
||
64 bit coprocessor insn (cop1)
|
||
|
||
The framework for an internally parallel coprocessor is also
|
||
present (2nd coprocessor insn is cop2), but at this time it
|
||
is not used. This only appears to be valid in VLIW64 mode. */
|
||
|
||
static int
|
||
mep_examine_vliw32_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
|
||
{
|
||
int status;
|
||
int buflength;
|
||
int corebuflength;
|
||
int cop1buflength;
|
||
int cop2buflength;
|
||
bfd_byte buf[CGEN_MAX_INSN_SIZE];
|
||
char indicator16[1];
|
||
char indicatorcop32[2];
|
||
|
||
/* At this time we're not supporting internally parallel coprocessors,
|
||
so cop2buflength will always be 0. */
|
||
cop2buflength = 0;
|
||
|
||
/* Read in 32 bits. */
|
||
buflength = 4; /* VLIW insn spans 4 bytes. */
|
||
status = (*info->read_memory_func) (pc, buf, buflength, info);
|
||
|
||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
/* Put the big endian representation of the bytes to be examined
|
||
in the temporary buffers for examination. */
|
||
|
||
if (info->endian == BFD_ENDIAN_BIG)
|
||
{
|
||
indicator16[0] = buf[0];
|
||
indicatorcop32[0] = buf[0];
|
||
indicatorcop32[1] = buf[1];
|
||
}
|
||
else
|
||
{
|
||
indicator16[0] = buf[1];
|
||
indicatorcop32[0] = buf[1];
|
||
indicatorcop32[1] = buf[0];
|
||
}
|
||
|
||
/* If the two high order bits are 00, 01 or 10, we have a 16 bit
|
||
core insn and a 48 bit copro insn. */
|
||
|
||
if ((indicator16[0] & 0x80) && (indicator16[0] & 0x40))
|
||
{
|
||
if ((indicatorcop32[0] & 0xf0) == 0xf0 && (indicatorcop32[1] & 0x07) == 0x07)
|
||
{
|
||
/* We have a 32 bit copro insn. */
|
||
corebuflength = 0;
|
||
/* All 4 4ytes are one copro insn. */
|
||
cop1buflength = 4;
|
||
}
|
||
else
|
||
{
|
||
/* We have a 32 bit core. */
|
||
corebuflength = 4;
|
||
cop1buflength = 0;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* We have a 16 bit core insn and a 16 bit copro insn. */
|
||
corebuflength = 2;
|
||
cop1buflength = 2;
|
||
}
|
||
|
||
/* Now we have the distrubution set. Print them out. */
|
||
status = mep_print_vliw_insns (cd, pc, info, buf, corebuflength,
|
||
cop1buflength, cop2buflength);
|
||
|
||
return status;
|
||
}
|
||
|
||
static int
|
||
mep_examine_vliw64_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
|
||
{
|
||
int status;
|
||
int buflength;
|
||
int corebuflength;
|
||
int cop1buflength;
|
||
int cop2buflength;
|
||
bfd_byte buf[CGEN_MAX_INSN_SIZE];
|
||
char indicator16[1];
|
||
char indicator64[4];
|
||
|
||
/* At this time we're not supporting internally parallel
|
||
coprocessors, so cop2buflength will always be 0. */
|
||
cop2buflength = 0;
|
||
|
||
/* Read in 64 bits. */
|
||
buflength = 8; /* VLIW insn spans 8 bytes. */
|
||
status = (*info->read_memory_func) (pc, buf, buflength, info);
|
||
|
||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
/* We have all 64 bits in the buffer now. We have to figure out
|
||
what combination of instruction sizes are present. The two
|
||
high order bits will indicate whether or not we have a 16 bit
|
||
core insn or not. If not, then we have to look at the 7,8th
|
||
bytes to tell whether we have 64 bit copro insn or a 32 bit
|
||
core insn with a 32 bit copro insn. Endianness will make a
|
||
difference here. */
|
||
|
||
/* Put the big endian representation of the bytes to be examined
|
||
in the temporary buffers for examination. */
|
||
|
||
/* indicator16[0] = buf[0]; */
|
||
if (info->endian == BFD_ENDIAN_BIG)
|
||
{
|
||
indicator16[0] = buf[0];
|
||
indicator64[0] = buf[0];
|
||
indicator64[1] = buf[1];
|
||
indicator64[2] = buf[2];
|
||
indicator64[3] = buf[3];
|
||
}
|
||
else
|
||
{
|
||
indicator16[0] = buf[1];
|
||
indicator64[0] = buf[1];
|
||
indicator64[1] = buf[0];
|
||
indicator64[2] = buf[3];
|
||
indicator64[3] = buf[2];
|
||
}
|
||
|
||
/* If the two high order bits are 00, 01 or 10, we have a 16 bit
|
||
core insn and a 48 bit copro insn. */
|
||
|
||
if ((indicator16[0] & 0x80) && (indicator16[0] & 0x40))
|
||
{
|
||
if ((indicator64[0] & 0xf0) == 0xf0 && (indicator64[1] & 0x07) == 0x07
|
||
&& ((indicator64[2] & 0xfe) != 0xf0 || (indicator64[3] & 0xf4) != 0))
|
||
{
|
||
/* We have a 64 bit copro insn. */
|
||
corebuflength = 0;
|
||
/* All 8 bytes are one copro insn. */
|
||
cop1buflength = 8;
|
||
}
|
||
else
|
||
{
|
||
/* We have a 32 bit core insn and a 32 bit copro insn. */
|
||
corebuflength = 4;
|
||
cop1buflength = 4;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* We have a 16 bit core insn and a 48 bit copro insn. */
|
||
corebuflength = 2;
|
||
cop1buflength = 6;
|
||
}
|
||
|
||
/* Now we have the distrubution set. Print them out. */
|
||
status = mep_print_vliw_insns (cd, pc, info, buf, corebuflength,
|
||
cop1buflength, cop2buflength);
|
||
|
||
return status;
|
||
}
|
||
|
||
#ifdef MEP_IVC2_SUPPORTED
|
||
|
||
static int
|
||
print_slot_insn (CGEN_CPU_DESC cd,
|
||
bfd_vma pc,
|
||
disassemble_info *info,
|
||
SLOTS_ATTR slot,
|
||
bfd_byte *buf)
|
||
{
|
||
const CGEN_INSN_LIST *insn_list;
|
||
CGEN_INSN_INT insn_value;
|
||
CGEN_EXTRACT_INFO ex_info;
|
||
|
||
insn_value = cgen_get_insn_value (cd, buf, 32, cd->insn_endian);
|
||
|
||
/* Fill in ex_info fields like read_insn would. Don't actually call
|
||
read_insn, since the incoming buffer is already read (and possibly
|
||
modified a la m32r). */
|
||
ex_info.valid = (1 << 8) - 1;
|
||
ex_info.dis_info = info;
|
||
ex_info.insn_bytes = buf;
|
||
|
||
/* The instructions are stored in hash lists.
|
||
Pick the first one and keep trying until we find the right one. */
|
||
|
||
insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
|
||
while (insn_list != NULL)
|
||
{
|
||
const CGEN_INSN *insn = insn_list->insn;
|
||
CGEN_FIELDS fields;
|
||
int length;
|
||
|
||
if ((CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_CONFIG)
|
||
&& CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_CONFIG) != MEP_CONFIG)
|
||
|| ! (CGEN_ATTR_CGEN_INSN_SLOTS_VALUE (CGEN_INSN_ATTRS (insn)) & (1 << slot)))
|
||
{
|
||
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
|
||
continue;
|
||
}
|
||
|
||
if ((insn_value & CGEN_INSN_BASE_MASK (insn))
|
||
== CGEN_INSN_BASE_VALUE (insn))
|
||
{
|
||
/* Printing is handled in two passes. The first pass parses the
|
||
machine insn and extracts the fields. The second pass prints
|
||
them. */
|
||
|
||
length = CGEN_EXTRACT_FN (cd, insn)
|
||
(cd, insn, &ex_info, insn_value, &fields, pc);
|
||
|
||
/* Length < 0 -> error. */
|
||
if (length < 0)
|
||
return length;
|
||
if (length > 0)
|
||
{
|
||
CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
|
||
/* Length is in bits, result is in bytes. */
|
||
return length / 8;
|
||
}
|
||
}
|
||
|
||
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
|
||
}
|
||
|
||
if (slot == SLOTS_P0S)
|
||
(*info->fprintf_func) (info->stream, "*unknown-p0s*");
|
||
else if (slot == SLOTS_P0)
|
||
(*info->fprintf_func) (info->stream, "*unknown-p0*");
|
||
else if (slot == SLOTS_P1)
|
||
(*info->fprintf_func) (info->stream, "*unknown-p1*");
|
||
else if (slot == SLOTS_C3)
|
||
(*info->fprintf_func) (info->stream, "*unknown-c3*");
|
||
return 0;
|
||
}
|
||
|
||
static int
|
||
mep_examine_ivc2_insns (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, bfd_vma pc ATTRIBUTE_UNUSED, disassemble_info *info ATTRIBUTE_UNUSED)
|
||
{
|
||
int status;
|
||
int buflength;
|
||
bfd_byte buf[8];
|
||
bfd_byte insn[8];
|
||
int e;
|
||
|
||
/* Read in 64 bits. */
|
||
buflength = 8; /* VLIW insn spans 8 bytes. */
|
||
status = (*info->read_memory_func) (pc, buf, buflength, info);
|
||
|
||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
if (info->endian == BFD_ENDIAN_LITTLE)
|
||
e = 1;
|
||
else
|
||
e = 0;
|
||
|
||
if (((unsigned char)buf[0^e] & 0xf0) < 0xc0)
|
||
{
|
||
/* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
|
||
/* V1 [-----core-----][--------p0s-------][------------p1------------] */
|
||
|
||
print_insn (cd, pc, info, buf, 2);
|
||
|
||
insn[0^e] = 0;
|
||
insn[1^e] = buf[2^e];
|
||
insn[2^e] = buf[3^e];
|
||
insn[3^e] = buf[4^e] & 0xf0;
|
||
(*info->fprintf_func) (info->stream, " + ");
|
||
print_slot_insn (cd, pc, info, SLOTS_P0S, insn);
|
||
|
||
insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
|
||
insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
|
||
insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
|
||
insn[3^e] = buf[7^e] << 4;
|
||
(*info->fprintf_func) (info->stream, " + ");
|
||
print_slot_insn (cd, pc, info, SLOTS_P1, insn);
|
||
}
|
||
else if ((buf[0^e] & 0xf0) == 0xf0 && (buf[1^e] & 0x0f) == 0x07)
|
||
{
|
||
/* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
|
||
/* V3 1111[--p0--]0111[--------p0--------][------------p1------------] */
|
||
/* 00000000111111112222222233333333 */
|
||
|
||
insn[0^e] = buf[0^e] << 4 | buf[1^e] >> 4;
|
||
insn[1^e] = buf[2^e];
|
||
insn[2^e] = buf[3^e];
|
||
insn[3^e] = buf[4^e] & 0xf0;
|
||
print_slot_insn (cd, pc, info, SLOTS_P0, insn);
|
||
|
||
insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
|
||
insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
|
||
insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
|
||
insn[3^e] = buf[7^e] << 4;
|
||
(*info->fprintf_func) (info->stream, " + ");
|
||
print_slot_insn (cd, pc, info, SLOTS_P1, insn);
|
||
}
|
||
else
|
||
{
|
||
/* <--00--><--11--><--22--><--33--><--44--><--55--><--66--><--77--> */
|
||
/* V2 [-------------core-------------]xxxx[------------p1------------] */
|
||
print_insn (cd, pc, info, buf, 4);
|
||
|
||
insn[0^e] = buf[4^e] << 4 | buf[5^e] >> 4;
|
||
insn[1^e] = buf[5^e] << 4 | buf[6^e] >> 4;
|
||
insn[2^e] = buf[6^e] << 4 | buf[7^e] >> 4;
|
||
insn[3^e] = buf[7^e] << 4;
|
||
(*info->fprintf_func) (info->stream, " + ");
|
||
print_slot_insn (cd, pc, info, SLOTS_P1, insn);
|
||
}
|
||
|
||
return 8;
|
||
}
|
||
|
||
#endif /* MEP_IVC2_SUPPORTED */
|
||
|
||
/* This is a hack. SID calls this to update the disassembler as the
|
||
CPU changes modes. */
|
||
static int mep_ivc2_disassemble_p = 0;
|
||
static int mep_ivc2_vliw_disassemble_p = 0;
|
||
|
||
void
|
||
mep_print_insn_set_ivc2_mode (int ivc2_p, int vliw_p, int cfg_idx);
|
||
void
|
||
mep_print_insn_set_ivc2_mode (int ivc2_p, int vliw_p, int cfg_idx)
|
||
{
|
||
mep_ivc2_disassemble_p = ivc2_p;
|
||
mep_ivc2_vliw_disassemble_p = vliw_p;
|
||
mep_config_index = cfg_idx;
|
||
}
|
||
|
||
static int
|
||
mep_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
|
||
{
|
||
int status;
|
||
int cop_type;
|
||
int ivc2 = 0;
|
||
static CGEN_ATTR_VALUE_BITSET_TYPE *ivc2_core_isa = NULL;
|
||
|
||
if (ivc2_core_isa == NULL)
|
||
{
|
||
/* IVC2 has some core-only coprocessor instructions. We
|
||
use COP32 to flag those, and COP64 for the VLIW ones,
|
||
since they have the same names. */
|
||
ivc2_core_isa = cgen_bitset_create (MAX_ISAS);
|
||
}
|
||
|
||
/* Extract and adapt to configuration number, if available. */
|
||
if (info->section && info->section->owner)
|
||
{
|
||
bfd *abfd = info->section->owner;
|
||
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
||
{
|
||
mep_config_index = abfd->tdata.elf_obj_data->elf_header->e_flags & EF_MEP_INDEX_MASK;
|
||
/* This instantly redefines MEP_CONFIG, MEP_OMASK, .... MEP_VLIW64 */
|
||
|
||
cop_type = abfd->tdata.elf_obj_data->elf_header->e_flags & EF_MEP_COP_MASK;
|
||
if (cop_type == EF_MEP_COP_IVC2)
|
||
ivc2 = 1;
|
||
}
|
||
}
|
||
|
||
/* Picking the right ISA bitmask for the current context is tricky. */
|
||
if (info->section)
|
||
{
|
||
if (info->section->flags & SEC_MEP_VLIW)
|
||
{
|
||
#ifdef MEP_IVC2_SUPPORTED
|
||
if (ivc2)
|
||
{
|
||
/* ivc2 has its own way of selecting its functions. */
|
||
cd->isas = & MEP_CORE_ISA;
|
||
status = mep_examine_ivc2_insns (cd, pc, info);
|
||
}
|
||
else
|
||
#endif
|
||
/* Are we in 32 or 64 bit vliw mode? */
|
||
if (MEP_VLIW64)
|
||
status = mep_examine_vliw64_insns (cd, pc, info);
|
||
else
|
||
status = mep_examine_vliw32_insns (cd, pc, info);
|
||
/* Both the above branches set their own isa bitmasks. */
|
||
}
|
||
else
|
||
{
|
||
if (ivc2)
|
||
{
|
||
cgen_bitset_clear (ivc2_core_isa);
|
||
cgen_bitset_union (ivc2_core_isa, &MEP_CORE_ISA, ivc2_core_isa);
|
||
cgen_bitset_union (ivc2_core_isa, &MEP_COP32_ISA, ivc2_core_isa);
|
||
cd->isas = ivc2_core_isa;
|
||
}
|
||
else
|
||
cd->isas = & MEP_CORE_ISA;
|
||
status = default_print_insn (cd, pc, info);
|
||
}
|
||
}
|
||
else /* sid or gdb */
|
||
{
|
||
#ifdef MEP_IVC2_SUPPORTED
|
||
if (mep_ivc2_disassemble_p)
|
||
{
|
||
if (mep_ivc2_vliw_disassemble_p)
|
||
{
|
||
cd->isas = & MEP_CORE_ISA;
|
||
status = mep_examine_ivc2_insns (cd, pc, info);
|
||
return status;
|
||
}
|
||
else
|
||
{
|
||
if (ivc2)
|
||
cd->isas = ivc2_core_isa;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
status = default_print_insn (cd, pc, info);
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
|
||
/* -- opc.c */
|
||
|
||
void mep_cgen_print_operand
|
||
(CGEN_CPU_DESC, int, void *, CGEN_FIELDS *, void const *, bfd_vma, int);
|
||
|
||
/* Main entry point for printing operands.
|
||
XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
|
||
of dis-asm.h on cgen.h.
|
||
|
||
This function is basically just a big switch statement. Earlier versions
|
||
used tables to look up the function to use, but
|
||
- if the table contains both assembler and disassembler functions then
|
||
the disassembler contains much of the assembler and vice-versa,
|
||
- there's a lot of inlining possibilities as things grow,
|
||
- using a switch statement avoids the function call overhead.
|
||
|
||
This function could be moved into `print_insn_normal', but keeping it
|
||
separate makes clear the interface between `print_insn_normal' and each of
|
||
the handlers. */
|
||
|
||
void
|
||
mep_cgen_print_operand (CGEN_CPU_DESC cd,
|
||
int opindex,
|
||
void * xinfo,
|
||
CGEN_FIELDS *fields,
|
||
void const *attrs ATTRIBUTE_UNUSED,
|
||
bfd_vma pc,
|
||
int length)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) xinfo;
|
||
|
||
switch (opindex)
|
||
{
|
||
case MEP_OPERAND_ADDR24A4 :
|
||
print_normal (cd, info, fields->f_24u8a4n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_C5RMUIMM20 :
|
||
print_normal (cd, info, fields->f_c5_rmuimm20, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_C5RNMUIMM24 :
|
||
print_normal (cd, info, fields->f_c5_rnmuimm24, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CALLNUM :
|
||
print_normal (cd, info, fields->f_callnum, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CCCC :
|
||
print_normal (cd, info, fields->f_rm, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_CCRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr, fields->f_ccrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_CDISP10 :
|
||
print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CDISP10A2 :
|
||
print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CDISP10A4 :
|
||
print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CDISP10A8 :
|
||
print_normal (cd, info, fields->f_cdisp10, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CDISP12 :
|
||
print_normal (cd, info, fields->f_12s20, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CIMM4 :
|
||
print_normal (cd, info, fields->f_rn, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_CIMM5 :
|
||
print_normal (cd, info, fields->f_5u24, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_CODE16 :
|
||
print_normal (cd, info, fields->f_16u16, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_CODE24 :
|
||
print_normal (cd, info, fields->f_24u4n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_CP_FLAG :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_CRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr, fields->f_crn, 0);
|
||
break;
|
||
case MEP_OPERAND_CRN64 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_crn, 0);
|
||
break;
|
||
case MEP_OPERAND_CRNX :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr, fields->f_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_CRNX64 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_CROC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u7, 0);
|
||
break;
|
||
case MEP_OPERAND_CROP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u23, 0);
|
||
break;
|
||
case MEP_OPERAND_CRPC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u26, 0);
|
||
break;
|
||
case MEP_OPERAND_CRPP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u18, 0);
|
||
break;
|
||
case MEP_OPERAND_CRQC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u21, 0);
|
||
break;
|
||
case MEP_OPERAND_CRQP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_5u13, 0);
|
||
break;
|
||
case MEP_OPERAND_CSRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, fields->f_csrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_CSRN_IDX :
|
||
print_normal (cd, info, fields->f_csrn, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_DBG :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_DEPC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_EPC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_EXC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_HI :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IMM16P0 :
|
||
print_normal (cd, info, fields->f_ivc2_imm16p0, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM3P12 :
|
||
print_normal (cd, info, fields->f_ivc2_3u12, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM3P25 :
|
||
print_normal (cd, info, fields->f_ivc2_3u25, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM3P4 :
|
||
print_normal (cd, info, fields->f_ivc2_3u4, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM3P5 :
|
||
print_normal (cd, info, fields->f_ivc2_3u5, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM3P9 :
|
||
print_normal (cd, info, fields->f_ivc2_3u9, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM4P10 :
|
||
print_normal (cd, info, fields->f_ivc2_4u10, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM4P4 :
|
||
print_normal (cd, info, fields->f_ivc2_4u4, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM4P8 :
|
||
print_normal (cd, info, fields->f_ivc2_4u8, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM5P23 :
|
||
print_normal (cd, info, fields->f_ivc2_5u23, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM5P3 :
|
||
print_normal (cd, info, fields->f_ivc2_5u3, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM5P7 :
|
||
print_normal (cd, info, fields->f_ivc2_5u7, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM5P8 :
|
||
print_normal (cd, info, fields->f_ivc2_5u8, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM6P2 :
|
||
print_normal (cd, info, fields->f_ivc2_6u2, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM6P6 :
|
||
print_normal (cd, info, fields->f_ivc2_6u6, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM8P0 :
|
||
print_normal (cd, info, fields->f_ivc2_8u0, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM8P20 :
|
||
print_normal (cd, info, fields->f_ivc2_8u20, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IMM8P4 :
|
||
print_normal (cd, info, fields->f_ivc2_8u4, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_0_2 :
|
||
print_normal (cd, info, fields->f_ivc2_2u0, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_0_3 :
|
||
print_normal (cd, info, fields->f_ivc2_3u0, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_0_4 :
|
||
print_normal (cd, info, fields->f_ivc2_4u0, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_0_5 :
|
||
print_normal (cd, info, fields->f_ivc2_5u0, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_6_1 :
|
||
print_normal (cd, info, fields->f_ivc2_1u6, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_6_2 :
|
||
print_normal (cd, info, fields->f_ivc2_2u6, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC_X_6_3 :
|
||
print_normal (cd, info, fields->f_ivc2_3u6, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_2 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_3 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_4 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_5 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_6 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC0_7 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_2 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_3 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_4 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_5 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_6 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_ACC1_7 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_CC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_COFA0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_COFA1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_COFR0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_COFR1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_CSAR0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2_CSAR1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_IVC2C3CCRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, fields->f_ivc2_ccrn_c3, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_IVC2CCRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_ccr_ivc2, fields->f_ivc2_ccrn, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_IVC2CRN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_cr64, fields->f_ivc2_crnx, 0|(1<<CGEN_OPERAND_VIRTUAL));
|
||
break;
|
||
case MEP_OPERAND_IVC2RM :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_ivc2_crm, 0);
|
||
break;
|
||
case MEP_OPERAND_LO :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_LP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_MB0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_MB1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_ME0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_ME1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_NPC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_OPT :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_PCABS24A2 :
|
||
print_address (cd, info, fields->f_24u5a2n, 0|(1<<CGEN_OPERAND_ABS_ADDR)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_PCREL12A2 :
|
||
print_address (cd, info, fields->f_12s4a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
|
||
break;
|
||
case MEP_OPERAND_PCREL17A2 :
|
||
print_address (cd, info, fields->f_17s16a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
|
||
break;
|
||
case MEP_OPERAND_PCREL24A2 :
|
||
print_address (cd, info, fields->f_24s5a2n, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_PCREL8A2 :
|
||
print_address (cd, info, fields->f_8s8a2, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
|
||
break;
|
||
case MEP_OPERAND_PSW :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_R0 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_R1 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_RL :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rl, 0);
|
||
break;
|
||
case MEP_OPERAND_RL5 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rl5, 0);
|
||
break;
|
||
case MEP_OPERAND_RM :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rm, 0);
|
||
break;
|
||
case MEP_OPERAND_RMA :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rm, 0);
|
||
break;
|
||
case MEP_OPERAND_RN :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3 :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3C :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3L :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3S :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3UC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3UL :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RN3US :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn3, 0);
|
||
break;
|
||
case MEP_OPERAND_RNC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RNL :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RNS :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RNUC :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RNUL :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_RNUS :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, fields->f_rn, 0);
|
||
break;
|
||
case MEP_OPERAND_SAR :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_csr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_SDISP16 :
|
||
print_normal (cd, info, fields->f_16s16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM16 :
|
||
print_normal (cd, info, fields->f_16s16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM16P0 :
|
||
print_normal (cd, info, fields->f_ivc2_simm16p0, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM6 :
|
||
print_normal (cd, info, fields->f_6s8, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM8 :
|
||
print_normal (cd, info, fields->f_8s8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC_IMPLIES_OVERFLOW), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM8P0 :
|
||
print_normal (cd, info, fields->f_ivc2_8s0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM8P20 :
|
||
print_normal (cd, info, fields->f_ivc2_8s20, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SIMM8P4 :
|
||
print_normal (cd, info, fields->f_ivc2_8s4, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_SP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_SPR :
|
||
print_spreg (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_TP :
|
||
print_keyword (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_TPR :
|
||
print_tpreg (cd, info, & mep_cgen_opval_h_gpr, 0, 0);
|
||
break;
|
||
case MEP_OPERAND_UDISP2 :
|
||
print_normal (cd, info, fields->f_2u6, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
case MEP_OPERAND_UDISP7 :
|
||
print_normal (cd, info, fields->f_7u9, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UDISP7A2 :
|
||
print_normal (cd, info, fields->f_7u9a2, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UDISP7A4 :
|
||
print_normal (cd, info, fields->f_7u9a4, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM16 :
|
||
print_normal (cd, info, fields->f_16u16, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM2 :
|
||
print_normal (cd, info, fields->f_2u10, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM24 :
|
||
print_normal (cd, info, fields->f_24u8n, 0|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM3 :
|
||
print_normal (cd, info, fields->f_3u5, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM4 :
|
||
print_normal (cd, info, fields->f_4u8, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM5 :
|
||
print_normal (cd, info, fields->f_5u8, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_UIMM7A4 :
|
||
print_normal (cd, info, fields->f_7u9a4, 0, pc, length);
|
||
break;
|
||
case MEP_OPERAND_ZERO :
|
||
print_normal (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
opcodes_error_handler
|
||
(_("internal error: unrecognized field %d while printing insn"),
|
||
opindex);
|
||
abort ();
|
||
}
|
||
}
|
||
|
||
cgen_print_fn * const mep_cgen_print_handlers[] =
|
||
{
|
||
print_insn_normal,
|
||
};
|
||
|
||
|
||
void
|
||
mep_cgen_init_dis (CGEN_CPU_DESC cd)
|
||
{
|
||
mep_cgen_init_opcode_table (cd);
|
||
mep_cgen_init_ibld_table (cd);
|
||
cd->print_handlers = & mep_cgen_print_handlers[0];
|
||
cd->print_operand = mep_cgen_print_operand;
|
||
}
|
||
|
||
|
||
/* Default print handler. */
|
||
|
||
static void
|
||
print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
void *dis_info,
|
||
long value,
|
||
unsigned int attrs,
|
||
bfd_vma pc ATTRIBUTE_UNUSED,
|
||
int length ATTRIBUTE_UNUSED)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
|
||
/* Print the operand as directed by the attributes. */
|
||
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
|
||
; /* nothing to do */
|
||
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
|
||
(*info->fprintf_func) (info->stream, "%ld", value);
|
||
else
|
||
(*info->fprintf_func) (info->stream, "0x%lx", value);
|
||
}
|
||
|
||
/* Default address handler. */
|
||
|
||
static void
|
||
print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
void *dis_info,
|
||
bfd_vma value,
|
||
unsigned int attrs,
|
||
bfd_vma pc ATTRIBUTE_UNUSED,
|
||
int length ATTRIBUTE_UNUSED)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
|
||
/* Print the operand as directed by the attributes. */
|
||
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
|
||
; /* Nothing to do. */
|
||
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
|
||
(*info->print_address_func) (value, info);
|
||
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
|
||
(*info->print_address_func) (value, info);
|
||
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
|
||
(*info->fprintf_func) (info->stream, "%ld", (long) value);
|
||
else
|
||
(*info->fprintf_func) (info->stream, "0x%lx", (long) value);
|
||
}
|
||
|
||
/* Keyword print handler. */
|
||
|
||
static void
|
||
print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
void *dis_info,
|
||
CGEN_KEYWORD *keyword_table,
|
||
long value,
|
||
unsigned int attrs ATTRIBUTE_UNUSED)
|
||
{
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
const CGEN_KEYWORD_ENTRY *ke;
|
||
|
||
ke = cgen_keyword_lookup_value (keyword_table, value);
|
||
if (ke != NULL)
|
||
(*info->fprintf_func) (info->stream, "%s", ke->name);
|
||
else
|
||
(*info->fprintf_func) (info->stream, "???");
|
||
}
|
||
|
||
/* Default insn printer.
|
||
|
||
DIS_INFO is defined as `void *' so the disassembler needn't know anything
|
||
about disassemble_info. */
|
||
|
||
static void
|
||
print_insn_normal (CGEN_CPU_DESC cd,
|
||
void *dis_info,
|
||
const CGEN_INSN *insn,
|
||
CGEN_FIELDS *fields,
|
||
bfd_vma pc,
|
||
int length)
|
||
{
|
||
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
|
||
disassemble_info *info = (disassemble_info *) dis_info;
|
||
const CGEN_SYNTAX_CHAR_TYPE *syn;
|
||
|
||
CGEN_INIT_PRINT (cd);
|
||
|
||
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
|
||
{
|
||
if (CGEN_SYNTAX_MNEMONIC_P (*syn))
|
||
{
|
||
(*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
|
||
continue;
|
||
}
|
||
if (CGEN_SYNTAX_CHAR_P (*syn))
|
||
{
|
||
(*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
|
||
continue;
|
||
}
|
||
|
||
/* We have an operand. */
|
||
mep_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
|
||
fields, CGEN_INSN_ATTRS (insn), pc, length);
|
||
}
|
||
}
|
||
|
||
/* Subroutine of print_insn. Reads an insn into the given buffers and updates
|
||
the extract info.
|
||
Returns 0 if all is well, non-zero otherwise. */
|
||
|
||
static int
|
||
read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
|
||
bfd_vma pc,
|
||
disassemble_info *info,
|
||
bfd_byte *buf,
|
||
int buflen,
|
||
CGEN_EXTRACT_INFO *ex_info,
|
||
unsigned long *insn_value)
|
||
{
|
||
int status = (*info->read_memory_func) (pc, buf, buflen, info);
|
||
|
||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
ex_info->dis_info = info;
|
||
ex_info->valid = (1 << buflen) - 1;
|
||
ex_info->insn_bytes = buf;
|
||
|
||
*insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
|
||
return 0;
|
||
}
|
||
|
||
/* Utility to print an insn.
|
||
BUF is the base part of the insn, target byte order, BUFLEN bytes long.
|
||
The result is the size of the insn in bytes or zero for an unknown insn
|
||
or -1 if an error occurs fetching data (memory_error_func will have
|
||
been called). */
|
||
|
||
static int
|
||
print_insn (CGEN_CPU_DESC cd,
|
||
bfd_vma pc,
|
||
disassemble_info *info,
|
||
bfd_byte *buf,
|
||
unsigned int buflen)
|
||
{
|
||
CGEN_INSN_INT insn_value;
|
||
const CGEN_INSN_LIST *insn_list;
|
||
CGEN_EXTRACT_INFO ex_info;
|
||
int basesize;
|
||
|
||
/* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
|
||
basesize = cd->base_insn_bitsize < buflen * 8 ?
|
||
cd->base_insn_bitsize : buflen * 8;
|
||
insn_value = cgen_get_insn_value (cd, buf, basesize, cd->insn_endian);
|
||
|
||
|
||
/* Fill in ex_info fields like read_insn would. Don't actually call
|
||
read_insn, since the incoming buffer is already read (and possibly
|
||
modified a la m32r). */
|
||
ex_info.valid = (1 << buflen) - 1;
|
||
ex_info.dis_info = info;
|
||
ex_info.insn_bytes = buf;
|
||
|
||
/* The instructions are stored in hash lists.
|
||
Pick the first one and keep trying until we find the right one. */
|
||
|
||
insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
|
||
while (insn_list != NULL)
|
||
{
|
||
const CGEN_INSN *insn = insn_list->insn;
|
||
CGEN_FIELDS fields;
|
||
int length;
|
||
unsigned long insn_value_cropped;
|
||
|
||
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
|
||
/* Not needed as insn shouldn't be in hash lists if not supported. */
|
||
/* Supported by this cpu? */
|
||
if (! mep_cgen_insn_supported (cd, insn))
|
||
{
|
||
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
|
||
continue;
|
||
}
|
||
#endif
|
||
|
||
/* Basic bit mask must be correct. */
|
||
/* ??? May wish to allow target to defer this check until the extract
|
||
handler. */
|
||
|
||
/* Base size may exceed this instruction's size. Extract the
|
||
relevant part from the buffer. */
|
||
if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
|
||
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
|
||
insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
|
||
info->endian == BFD_ENDIAN_BIG);
|
||
else
|
||
insn_value_cropped = insn_value;
|
||
|
||
if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
|
||
== CGEN_INSN_BASE_VALUE (insn))
|
||
{
|
||
/* Printing is handled in two passes. The first pass parses the
|
||
machine insn and extracts the fields. The second pass prints
|
||
them. */
|
||
|
||
/* Make sure the entire insn is loaded into insn_value, if it
|
||
can fit. */
|
||
if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
|
||
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
|
||
{
|
||
unsigned long full_insn_value;
|
||
int rc = read_insn (cd, pc, info, buf,
|
||
CGEN_INSN_BITSIZE (insn) / 8,
|
||
& ex_info, & full_insn_value);
|
||
if (rc != 0)
|
||
return rc;
|
||
length = CGEN_EXTRACT_FN (cd, insn)
|
||
(cd, insn, &ex_info, full_insn_value, &fields, pc);
|
||
}
|
||
else
|
||
length = CGEN_EXTRACT_FN (cd, insn)
|
||
(cd, insn, &ex_info, insn_value_cropped, &fields, pc);
|
||
|
||
/* Length < 0 -> error. */
|
||
if (length < 0)
|
||
return length;
|
||
if (length > 0)
|
||
{
|
||
CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
|
||
/* Length is in bits, result is in bytes. */
|
||
return length / 8;
|
||
}
|
||
}
|
||
|
||
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Default value for CGEN_PRINT_INSN.
|
||
The result is the size of the insn in bytes or zero for an unknown insn
|
||
or -1 if an error occured fetching bytes. */
|
||
|
||
#ifndef CGEN_PRINT_INSN
|
||
#define CGEN_PRINT_INSN default_print_insn
|
||
#endif
|
||
|
||
static int
|
||
default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
|
||
{
|
||
bfd_byte buf[CGEN_MAX_INSN_SIZE];
|
||
int buflen;
|
||
int status;
|
||
|
||
/* Attempt to read the base part of the insn. */
|
||
buflen = cd->base_insn_bitsize / 8;
|
||
status = (*info->read_memory_func) (pc, buf, buflen, info);
|
||
|
||
/* Try again with the minimum part, if min < base. */
|
||
if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
|
||
{
|
||
buflen = cd->min_insn_bitsize / 8;
|
||
status = (*info->read_memory_func) (pc, buf, buflen, info);
|
||
}
|
||
|
||
if (status != 0)
|
||
{
|
||
(*info->memory_error_func) (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
return print_insn (cd, pc, info, buf, buflen);
|
||
}
|
||
|
||
/* Main entry point.
|
||
Print one instruction from PC on INFO->STREAM.
|
||
Return the size of the instruction (in bytes). */
|
||
|
||
typedef struct cpu_desc_list
|
||
{
|
||
struct cpu_desc_list *next;
|
||
CGEN_BITSET *isa;
|
||
int mach;
|
||
int endian;
|
||
int insn_endian;
|
||
CGEN_CPU_DESC cd;
|
||
} cpu_desc_list;
|
||
|
||
int
|
||
print_insn_mep (bfd_vma pc, disassemble_info *info)
|
||
{
|
||
static cpu_desc_list *cd_list = 0;
|
||
cpu_desc_list *cl = 0;
|
||
static CGEN_CPU_DESC cd = 0;
|
||
static CGEN_BITSET *prev_isa;
|
||
static int prev_mach;
|
||
static int prev_endian;
|
||
static int prev_insn_endian;
|
||
int length;
|
||
CGEN_BITSET *isa;
|
||
int mach;
|
||
int endian = (info->endian == BFD_ENDIAN_BIG
|
||
? CGEN_ENDIAN_BIG
|
||
: CGEN_ENDIAN_LITTLE);
|
||
int insn_endian = (info->endian_code == BFD_ENDIAN_BIG
|
||
? CGEN_ENDIAN_BIG
|
||
: CGEN_ENDIAN_LITTLE);
|
||
enum bfd_architecture arch;
|
||
|
||
/* ??? gdb will set mach but leave the architecture as "unknown" */
|
||
#ifndef CGEN_BFD_ARCH
|
||
#define CGEN_BFD_ARCH bfd_arch_mep
|
||
#endif
|
||
arch = info->arch;
|
||
if (arch == bfd_arch_unknown)
|
||
arch = CGEN_BFD_ARCH;
|
||
|
||
/* There's no standard way to compute the machine or isa number
|
||
so we leave it to the target. */
|
||
#ifdef CGEN_COMPUTE_MACH
|
||
mach = CGEN_COMPUTE_MACH (info);
|
||
#else
|
||
mach = info->mach;
|
||
#endif
|
||
|
||
#ifdef CGEN_COMPUTE_ISA
|
||
{
|
||
static CGEN_BITSET *permanent_isa;
|
||
|
||
if (!permanent_isa)
|
||
permanent_isa = cgen_bitset_create (MAX_ISAS);
|
||
isa = permanent_isa;
|
||
cgen_bitset_clear (isa);
|
||
cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
|
||
}
|
||
#else
|
||
isa = info->private_data;
|
||
#endif
|
||
|
||
/* If we've switched cpu's, try to find a handle we've used before */
|
||
if (cd
|
||
&& (cgen_bitset_compare (isa, prev_isa) != 0
|
||
|| mach != prev_mach
|
||
|| endian != prev_endian))
|
||
{
|
||
cd = 0;
|
||
for (cl = cd_list; cl; cl = cl->next)
|
||
{
|
||
if (cgen_bitset_compare (cl->isa, isa) == 0 &&
|
||
cl->mach == mach &&
|
||
cl->endian == endian)
|
||
{
|
||
cd = cl->cd;
|
||
prev_isa = cd->isas;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* If we haven't initialized yet, initialize the opcode table. */
|
||
if (! cd)
|
||
{
|
||
const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
|
||
const char *mach_name;
|
||
|
||
if (!arch_type)
|
||
abort ();
|
||
mach_name = arch_type->printable_name;
|
||
|
||
prev_isa = cgen_bitset_copy (isa);
|
||
prev_mach = mach;
|
||
prev_endian = endian;
|
||
prev_insn_endian = insn_endian;
|
||
cd = mep_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
|
||
CGEN_CPU_OPEN_BFDMACH, mach_name,
|
||
CGEN_CPU_OPEN_ENDIAN, prev_endian,
|
||
CGEN_CPU_OPEN_INSN_ENDIAN, prev_insn_endian,
|
||
CGEN_CPU_OPEN_END);
|
||
if (!cd)
|
||
abort ();
|
||
|
||
/* Save this away for future reference. */
|
||
cl = xmalloc (sizeof (struct cpu_desc_list));
|
||
cl->cd = cd;
|
||
cl->isa = prev_isa;
|
||
cl->mach = mach;
|
||
cl->endian = endian;
|
||
cl->next = cd_list;
|
||
cd_list = cl;
|
||
|
||
mep_cgen_init_dis (cd);
|
||
}
|
||
|
||
/* We try to have as much common code as possible.
|
||
But at this point some targets need to take over. */
|
||
/* ??? Some targets may need a hook elsewhere. Try to avoid this,
|
||
but if not possible try to move this hook elsewhere rather than
|
||
have two hooks. */
|
||
length = CGEN_PRINT_INSN (cd, pc, info);
|
||
if (length > 0)
|
||
return length;
|
||
if (length < 0)
|
||
return -1;
|
||
|
||
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
|
||
return cd->default_insn_bitsize / 8;
|
||
}
|