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frv-opc.c
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6233 lines (5945 loc) · 203 KB
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/* Instruction opcode table for frv.
THIS FILE IS MACHINE GENERATED WITH CGEN.
Copyright (C) 1996-2017 Free Software Foundation, Inc.
This file is part of the GNU Binutils and/or GDB, the GNU debugger.
This file 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.
*/
#include "sysdep.h"
#include "ansidecl.h"
#include "bfd.h"
#include "symcat.h"
#include "frv-desc.h"
#include "frv-opc.h"
#include "libiberty.h"
/* -- opc.c */
#include "elf/frv.h"
#include <stdio.h>
/* DEBUG appears below as argument of OP macro. */
#undef DEBUG
/* Returns TRUE if {MAJOR,MACH} is a major branch of the FRV
development tree. */
bfd_boolean
frv_is_branch_major (CGEN_ATTR_VALUE_ENUM_TYPE major, unsigned long mach)
{
switch (mach)
{
case bfd_mach_fr400:
if (major >= FR400_MAJOR_B_1 && major <= FR400_MAJOR_B_6)
return TRUE;
break;
case bfd_mach_fr450:
if (major >= FR450_MAJOR_B_1 && major <= FR450_MAJOR_B_6)
return TRUE;
break;
default:
if (major >= FR500_MAJOR_B_1 && major <= FR500_MAJOR_B_6)
return TRUE;
break;
}
return FALSE;
}
/* Returns TRUE if {MAJOR,MACH} supports floating point insns. */
bfd_boolean
frv_is_float_major (CGEN_ATTR_VALUE_ENUM_TYPE major, unsigned long mach)
{
switch (mach)
{
case bfd_mach_fr400:
case bfd_mach_fr450:
return FALSE;
default:
if (major >= FR500_MAJOR_F_1 && major <= FR500_MAJOR_F_8)
return TRUE;
break;
}
return FALSE;
}
/* Returns TRUE if {MAJOR,MACH} supports media insns. */
bfd_boolean
frv_is_media_major (CGEN_ATTR_VALUE_ENUM_TYPE major, unsigned long mach)
{
switch (mach)
{
case bfd_mach_fr400:
if (major >= FR400_MAJOR_M_1 && major <= FR400_MAJOR_M_2)
return TRUE;
break;
case bfd_mach_fr450:
if (major >= FR450_MAJOR_M_1 && major <= FR450_MAJOR_M_6)
return TRUE;
break;
default:
if (major >= FR500_MAJOR_M_1 && major <= FR500_MAJOR_M_8)
return TRUE;
break;
}
return FALSE;
}
bfd_boolean
frv_is_branch_insn (const CGEN_INSN *insn)
{
if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return TRUE;
if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
bfd_mach_fr450))
return TRUE;
if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return TRUE;
return FALSE;
}
bfd_boolean
frv_is_float_insn (const CGEN_INSN *insn)
{
if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return TRUE;
if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
bfd_mach_fr450))
return TRUE;
if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return TRUE;
return FALSE;
}
bfd_boolean
frv_is_media_insn (const CGEN_INSN *insn)
{
if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
bfd_mach_fr400))
return TRUE;
if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR),
bfd_mach_fr450))
return TRUE;
if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
bfd_mach_fr500))
return TRUE;
return FALSE;
}
/* This table represents the allowable packing for vliw insns for the fr400.
The fr400 has only 2 vliw slots. Represent this by not allowing any insns
in the extra slots.
Subsets of any given row are also allowed. */
static VLIW_COMBO fr400_allowed_vliw[] =
{
/* slot0 slot1 slot2 slot3 */
{ UNIT_I0, UNIT_I1, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_FM0, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_B0, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_FM0, UNIT_FM1, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_FM0, UNIT_B0, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_B0, UNIT_NIL, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_C, UNIT_NIL, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO }
};
/* This table represents the allowable packing for vliw insns for the fr500.
The fr500 has only 4 vliw slots. Represent this by not allowing any insns
in the extra slots.
Subsets of any given row are also allowed. */
static VLIW_COMBO fr500_allowed_vliw[] =
{
/* slot0 slot1 slot2 slot3 */
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1 PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_B0 PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_FM0, UNIT_FM1, UNIT_B0 PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_FM0, UNIT_B0, UNIT_B1 PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_I1, UNIT_B0, UNIT_B1 PAD_VLIW_COMBO },
{ UNIT_I0, UNIT_B0, UNIT_B1, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_FM0, UNIT_FM1, UNIT_B0, UNIT_B1 PAD_VLIW_COMBO },
{ UNIT_FM0, UNIT_B0, UNIT_B1, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_C, UNIT_NIL, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO },
{ UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL PAD_VLIW_COMBO }
};
/* This table represents the allowable packing for vliw insns for the fr550.
Subsets of any given row are also allowed. */
static VLIW_COMBO fr550_allowed_vliw[] =
{
/* slot0 slot1 slot2 slot3 slot4 slot5 slot6 slot7 */
{ UNIT_I0, UNIT_I1, UNIT_I2, UNIT_I3, UNIT_B0, UNIT_B1 , UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_I1, UNIT_I2, UNIT_B0, UNIT_B1 , UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_I1, UNIT_B0, UNIT_B1 , UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_B0, UNIT_B1 , UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_FM2, UNIT_I3, UNIT_FM3 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_FM2, UNIT_I3, UNIT_B0 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_FM2, UNIT_FM3, UNIT_B0 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_FM2, UNIT_B0, UNIT_B1 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_I3, UNIT_B0, UNIT_B1 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_I2, UNIT_B0, UNIT_B1, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_FM2, UNIT_FM3, UNIT_B0, UNIT_B1 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_FM2, UNIT_FM3, UNIT_B0, UNIT_B1 },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_FM2, UNIT_B0, UNIT_B1, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_FM1, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_I2, UNIT_I3, UNIT_B0, UNIT_B1, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_I2, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_I1, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_FM1, UNIT_FM2, UNIT_FM3, UNIT_B0, UNIT_B1, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_FM1, UNIT_FM2, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_FM1, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_I0, UNIT_FM0, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_C, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_FM0, UNIT_FM1, UNIT_FM2, UNIT_FM3, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL },
{ UNIT_FM0, UNIT_FM1, UNIT_FM2, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_FM0, UNIT_FM1, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_FM0, UNIT_B0, UNIT_B1, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL },
{ UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL, UNIT_NIL }
};
/* Some insns are assigned specialized implementation units which map to
different actual implementation units on different machines. These
tables perform that mapping. */
static CGEN_ATTR_VALUE_ENUM_TYPE fr400_unit_mapping[] =
{
/* unit in insn actual unit */
/* NIL */ UNIT_NIL,
/* I0 */ UNIT_I0,
/* I1 */ UNIT_I1,
/* I01 */ UNIT_I01,
/* I2 */ UNIT_NIL, /* no I2 or I3 unit */
/* I3 */ UNIT_NIL,
/* IALL */ UNIT_I01, /* only I0 and I1 units */
/* FM0 */ UNIT_FM0,
/* FM1 */ UNIT_FM1,
/* FM01 */ UNIT_FM01,
/* FM2 */ UNIT_NIL, /* no F2 or M2 units */
/* FM3 */ UNIT_NIL, /* no F3 or M3 units */
/* FMALL */ UNIT_FM01,/* Only F0,F1,M0,M1 units */
/* FMLOW */ UNIT_FM0, /* Only F0,M0 units */
/* B0 */ UNIT_B0, /* branches only in B0 unit. */
/* B1 */ UNIT_B0,
/* B01 */ UNIT_B0,
/* C */ UNIT_C,
/* MULT-DIV */ UNIT_I0, /* multiply and divide only in I0 unit. */
/* IACC */ UNIT_I01, /* iacc multiply in I0 or I1 unit. */
/* LOAD */ UNIT_I0, /* load only in I0 unit. */
/* STORE */ UNIT_I0, /* store only in I0 unit. */
/* SCAN */ UNIT_I0, /* scan only in I0 unit. */
/* DCPL */ UNIT_C, /* dcpl only in C unit. */
/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */
/* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */
};
/* Some insns are assigned specialized implementation units which map to
different actual implementation units on different machines. These
tables perform that mapping. */
static CGEN_ATTR_VALUE_ENUM_TYPE fr450_unit_mapping[] =
{
/* unit in insn actual unit */
/* NIL */ UNIT_NIL,
/* I0 */ UNIT_I0,
/* I1 */ UNIT_I1,
/* I01 */ UNIT_I01,
/* I2 */ UNIT_NIL, /* no I2 or I3 unit */
/* I3 */ UNIT_NIL,
/* IALL */ UNIT_I01, /* only I0 and I1 units */
/* FM0 */ UNIT_FM0,
/* FM1 */ UNIT_FM1,
/* FM01 */ UNIT_FM01,
/* FM2 */ UNIT_NIL, /* no F2 or M2 units */
/* FM3 */ UNIT_NIL, /* no F3 or M3 units */
/* FMALL */ UNIT_FM01,/* Only F0,F1,M0,M1 units */
/* FMLOW */ UNIT_FM0, /* Only F0,M0 units */
/* B0 */ UNIT_B0, /* branches only in B0 unit. */
/* B1 */ UNIT_B0,
/* B01 */ UNIT_B0,
/* C */ UNIT_C,
/* MULT-DIV */ UNIT_I0, /* multiply and divide only in I0 unit. */
/* IACC */ UNIT_I01, /* iacc multiply in I0 or I1 unit. */
/* LOAD */ UNIT_I0, /* load only in I0 unit. */
/* STORE */ UNIT_I0, /* store only in I0 unit. */
/* SCAN */ UNIT_I0, /* scan only in I0 unit. */
/* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */
/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1. */
/* MCLRACC-1*/ UNIT_FM0 /* mclracc,A==1 insn only in FM0 unit. */
};
static CGEN_ATTR_VALUE_ENUM_TYPE fr500_unit_mapping[] =
{
/* unit in insn actual unit */
/* NIL */ UNIT_NIL,
/* I0 */ UNIT_I0,
/* I1 */ UNIT_I1,
/* I01 */ UNIT_I01,
/* I2 */ UNIT_NIL, /* no I2 or I3 unit */
/* I3 */ UNIT_NIL,
/* IALL */ UNIT_I01, /* only I0 and I1 units */
/* FM0 */ UNIT_FM0,
/* FM1 */ UNIT_FM1,
/* FM01 */ UNIT_FM01,
/* FM2 */ UNIT_NIL, /* no F2 or M2 units */
/* FM3 */ UNIT_NIL, /* no F3 or M2 units */
/* FMALL */ UNIT_FM01,/* Only F0,F1,M0,M1 units */
/* FMLOW */ UNIT_FM0, /* Only F0,M0 units */
/* B0 */ UNIT_B0,
/* B1 */ UNIT_B1,
/* B01 */ UNIT_B01,
/* C */ UNIT_C,
/* MULT-DIV */ UNIT_I01, /* multiply and divide in I0 or I1 unit. */
/* IACC */ UNIT_NIL, /* iacc multiply not implemented */
/* LOAD */ UNIT_I01, /* load in I0 or I1 unit. */
/* STORE */ UNIT_I0, /* store only in I0 unit. */
/* SCAN */ UNIT_I01, /* scan in I0 or I1 unit. */
/* DCPL */ UNIT_C, /* dcpl only in C unit. */
/* MDUALACC */ UNIT_FM0, /* media dual acc insn only in FM0 unit. */
/* MDCUTSSI */ UNIT_FM0, /* mdcutssi only in FM0 unit. */
/* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */
};
static CGEN_ATTR_VALUE_ENUM_TYPE fr550_unit_mapping[] =
{
/* unit in insn actual unit */
/* NIL */ UNIT_NIL,
/* I0 */ UNIT_I0,
/* I1 */ UNIT_I1,
/* I01 */ UNIT_I01,
/* I2 */ UNIT_I2,
/* I3 */ UNIT_I3,
/* IALL */ UNIT_IALL,
/* FM0 */ UNIT_FM0,
/* FM1 */ UNIT_FM1,
/* FM01 */ UNIT_FM01,
/* FM2 */ UNIT_FM2,
/* FM3 */ UNIT_FM3,
/* FMALL */ UNIT_FMALL,
/* FMLOW */ UNIT_FM01, /* Only F0,F1,M0,M1 units */
/* B0 */ UNIT_B0,
/* B1 */ UNIT_B1,
/* B01 */ UNIT_B01,
/* C */ UNIT_C,
/* MULT-DIV */ UNIT_I01, /* multiply and divide in I0 or I1 unit. */
/* IACC */ UNIT_NIL, /* iacc multiply not implemented. */
/* LOAD */ UNIT_I01, /* load in I0 or I1 unit. */
/* STORE */ UNIT_I01, /* store in I0 or I1 unit. */
/* SCAN */ UNIT_IALL, /* scan in any integer unit. */
/* DCPL */ UNIT_I0, /* dcpl only in I0 unit. */
/* MDUALACC */ UNIT_FMALL,/* media dual acc insn in all media units */
/* MDCUTSSI */ UNIT_FM01, /* mdcutssi in FM0 or FM1 unit. */
/* MCLRACC-1*/ UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit. */
};
void
frv_vliw_reset (FRV_VLIW *vliw, unsigned long mach, unsigned long elf_flags)
{
vliw->next_slot = 0;
vliw->constraint_violation = 0;
vliw->mach = mach;
vliw->elf_flags = elf_flags;
switch (mach)
{
case bfd_mach_fr400:
vliw->current_vliw = fr400_allowed_vliw;
vliw->unit_mapping = fr400_unit_mapping;
break;
case bfd_mach_fr450:
vliw->current_vliw = fr400_allowed_vliw;
vliw->unit_mapping = fr450_unit_mapping;
break;
case bfd_mach_fr550:
vliw->current_vliw = fr550_allowed_vliw;
vliw->unit_mapping = fr550_unit_mapping;
break;
default:
vliw->current_vliw = fr500_allowed_vliw;
vliw->unit_mapping = fr500_unit_mapping;
break;
}
}
/* Return TRUE if unit1 is a match for unit2.
Unit1 comes from the insn's UNIT attribute. unit2 comes from one of the
*_allowed_vliw tables above. */
static bfd_boolean
match_unit (FRV_VLIW *vliw,
CGEN_ATTR_VALUE_ENUM_TYPE unit1, CGEN_ATTR_VALUE_ENUM_TYPE unit2)
{
/* Map any specialized implementation units to actual ones. */
unit1 = vliw->unit_mapping[unit1];
if (unit1 == unit2)
return TRUE;
if (unit1 < unit2)
return FALSE;
switch (unit1)
{
case UNIT_I01:
case UNIT_FM01:
case UNIT_B01:
/* The 01 versions of these units are within 2 enums of the 0 or 1
versions. */
if (unit1 - unit2 <= 2)
return TRUE;
break;
case UNIT_IALL:
case UNIT_FMALL:
/* The ALL versions of these units are within 5 enums of the 0, 1, 2 or 3
versions. */
if (unit1 - unit2 <= 5)
return TRUE;
break;
default:
break;
}
return FALSE;
}
/* Return TRUE if the vliws match, FALSE otherwise. */
static bfd_boolean
match_vliw (VLIW_COMBO *vliw1, VLIW_COMBO *vliw2, int vliw_size)
{
int i;
for (i = 0; i < vliw_size; ++i)
if ((*vliw1)[i] != (*vliw2)[i])
return FALSE;
return TRUE;
}
/* Find the next vliw vliw in the table that can accomodate the new insn.
If one is found then return it. Otherwise return NULL. */
static VLIW_COMBO *
add_next_to_vliw (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE unit)
{
int next = vliw->next_slot;
VLIW_COMBO *current = vliw->current_vliw;
VLIW_COMBO *potential;
if (next <= 0)
{
fprintf (stderr, "frv-opc.c line %d: bad vliw->next_slot value.\n",
__LINE__);
abort (); /* Should never happen. */
}
/* The table is sorted by units allowed within slots, so vliws with
identical starting sequences are together. */
potential = current;
do
{
if (match_unit (vliw, unit, (*potential)[next]))
return potential;
++potential;
}
while (match_vliw (potential, current, next));
return NULL;
}
/* Look for the given major insn type in the given vliw.
Returns TRUE if found, FALSE otherwise. */
static bfd_boolean
find_major_in_vliw (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE major)
{
int i;
for (i = 0; i < vliw->next_slot; ++i)
if (vliw->major[i] == major)
return TRUE;
return FALSE;
}
/* Check for constraints between the insns in the vliw due to major insn
types. */
static bfd_boolean
fr400_check_insn_major_constraints (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE major)
{
/* In the cpu file, all media insns are represented as being allowed in
both media units. This makes it easier since this is the case for fr500.
Catch the invalid combinations here. Insns of major class FR400_MAJOR_M_2
cannot coexist with any other media insn in a vliw. */
switch (major)
{
case FR400_MAJOR_M_2:
return ! find_major_in_vliw (vliw, FR400_MAJOR_M_1)
&& ! find_major_in_vliw (vliw, FR400_MAJOR_M_2);
case FR400_MAJOR_M_1:
return ! find_major_in_vliw (vliw, FR400_MAJOR_M_2);
default:
break;
}
return TRUE;
}
static bfd_boolean
fr450_check_insn_major_constraints (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE major)
{
CGEN_ATTR_VALUE_ENUM_TYPE other_major;
/* Our caller guarantees there's at least one other instruction. */
other_major = CGEN_INSN_ATTR_VALUE (vliw->insn[0], CGEN_INSN_FR450_MAJOR);
/* (M4, M5) and (M4, M6) are allowed. */
if (other_major == FR450_MAJOR_M_4)
if (major == FR450_MAJOR_M_5 || major == FR450_MAJOR_M_6)
return TRUE;
/* Otherwise, instructions in even-numbered media categories cannot be
executed in parallel with other media instructions. */
switch (major)
{
case FR450_MAJOR_M_2:
case FR450_MAJOR_M_4:
case FR450_MAJOR_M_6:
return !(other_major >= FR450_MAJOR_M_1
&& other_major <= FR450_MAJOR_M_6);
case FR450_MAJOR_M_1:
case FR450_MAJOR_M_3:
case FR450_MAJOR_M_5:
return !(other_major == FR450_MAJOR_M_2
|| other_major == FR450_MAJOR_M_4
|| other_major == FR450_MAJOR_M_6);
default:
return TRUE;
}
}
static bfd_boolean
find_unit_in_vliw (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE unit)
{
int i;
for (i = 0; i < vliw->next_slot; ++i)
if (CGEN_INSN_ATTR_VALUE (vliw->insn[i], CGEN_INSN_UNIT) == unit)
return TRUE;
return FALSE; /* Not found. */
}
static bfd_boolean
find_major_in_slot (FRV_VLIW *vliw,
CGEN_ATTR_VALUE_ENUM_TYPE major,
CGEN_ATTR_VALUE_ENUM_TYPE slot)
{
int i;
for (i = 0; i < vliw->next_slot; ++i)
if (vliw->major[i] == major && (*vliw->current_vliw)[i] == slot)
return TRUE;
return FALSE;
}
static bfd_boolean
fr550_find_media_in_vliw (FRV_VLIW *vliw)
{
int i;
for (i = 0; i < vliw->next_slot; ++i)
{
if (vliw->major[i] < FR550_MAJOR_M_1 || vliw->major[i] > FR550_MAJOR_M_5)
continue;
/* Found a media insn, however, MNOP and MCLRACC don't count. */
if (CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MNOP
|| CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MCLRACC_0
|| CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MCLRACC_1)
continue;
return TRUE; /* Found one. */
}
return FALSE;
}
static bfd_boolean
fr550_find_float_in_vliw (FRV_VLIW *vliw)
{
int i;
for (i = 0; i < vliw->next_slot; ++i)
{
if (vliw->major[i] < FR550_MAJOR_F_1 || vliw->major[i] > FR550_MAJOR_F_4)
continue;
/* Found a floating point insn, however, FNOP doesn't count. */
if (CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_FNOP)
continue;
return TRUE; /* Found one. */
}
return FALSE;
}
static bfd_boolean
fr550_check_insn_major_constraints (FRV_VLIW *vliw,
CGEN_ATTR_VALUE_ENUM_TYPE major,
const CGEN_INSN *insn)
{
CGEN_ATTR_VALUE_ENUM_TYPE unit;
CGEN_ATTR_VALUE_ENUM_TYPE slot = (*vliw->current_vliw)[vliw->next_slot];
switch (slot)
{
case UNIT_I2:
/* If it's a store, then there must be another store in I1 */
unit = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_UNIT);
if (unit == UNIT_STORE)
return find_unit_in_vliw (vliw, UNIT_STORE);
break;
case UNIT_FM2:
case UNIT_FM3:
/* Floating point insns other than FNOP in slot f2 or f3 cannot coexist
with media insns. */
if (major >= FR550_MAJOR_F_1 && major <= FR550_MAJOR_F_4
&& CGEN_INSN_NUM (insn) != FRV_INSN_FNOP)
return ! fr550_find_media_in_vliw (vliw);
/* Media insns other than MNOP in slot m2 or m3 cannot coexist with
floating point insns. */
if (major >= FR550_MAJOR_M_1 && major <= FR550_MAJOR_M_5
&& CGEN_INSN_NUM (insn) != FRV_INSN_MNOP)
return ! fr550_find_float_in_vliw (vliw);
/* F-2 in slot f2 or f3 cannot coexist with F-2 or F-4 in slot f1 or f2
respectively. */
if (major == FR550_MAJOR_F_2)
return ! find_major_in_slot (vliw, FR550_MAJOR_F_2,
slot - (UNIT_FM2 - UNIT_FM0))
&& ! find_major_in_slot (vliw, FR550_MAJOR_F_4,
slot - (UNIT_FM2 - UNIT_FM0));
/* M-2 or M-5 in slot m2 or m3 cannot coexist with M-2 in slot m1 or m2
respectively. */
if (major == FR550_MAJOR_M_2 || major == FR550_MAJOR_M_5)
return ! find_major_in_slot (vliw, FR550_MAJOR_M_2,
slot - (UNIT_FM2 - UNIT_FM0));
/* M-4 in slot m2 or m3 cannot coexist with M-4 in slot m1 or m2
respectively. */
if (major == FR550_MAJOR_M_4)
return ! find_major_in_slot (vliw, FR550_MAJOR_M_4,
slot - (UNIT_FM2 - UNIT_FM0));
break;
default:
break;
}
return TRUE; /* All OK. */
}
static bfd_boolean
fr500_check_insn_major_constraints (FRV_VLIW *vliw, CGEN_ATTR_VALUE_ENUM_TYPE major)
{
/* TODO: A table might be faster for some of the more complex instances
here. */
switch (major)
{
case FR500_MAJOR_I_1:
case FR500_MAJOR_I_4:
case FR500_MAJOR_I_5:
case FR500_MAJOR_I_6:
case FR500_MAJOR_B_1:
case FR500_MAJOR_B_2:
case FR500_MAJOR_B_3:
case FR500_MAJOR_B_4:
case FR500_MAJOR_B_5:
case FR500_MAJOR_B_6:
case FR500_MAJOR_F_4:
case FR500_MAJOR_F_8:
case FR500_MAJOR_M_8:
return TRUE; /* OK */
case FR500_MAJOR_I_2:
/* Cannot coexist with I-3 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_I_3);
case FR500_MAJOR_I_3:
/* Cannot coexist with I-2 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_I_2);
case FR500_MAJOR_F_1:
case FR500_MAJOR_F_2:
/* Cannot coexist with F-5, F-6, or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_F_3:
/* Cannot coexist with F-7, or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_F_5:
/* Cannot coexist with F-1, F-2, F-6, F-7, or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_F_6:
/* Cannot coexist with F-1, F-2, F-5, F-6, or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_F_7:
/* Cannot coexist with F-3, F-5, F-7, or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_F_3)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_M_1:
/* Cannot coexist with M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_M_2:
case FR500_MAJOR_M_3:
/* Cannot coexist with M-5, M-6 or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_M_4:
/* Cannot coexist with M-6 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_6);
case FR500_MAJOR_M_5:
/* Cannot coexist with M-2, M-3, M-5, M-6 or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_M_6:
/* Cannot coexist with M-2, M-3, M-4, M-5, M-6 or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_4)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
case FR500_MAJOR_M_7:
/* Cannot coexist with M-1, M-2, M-3, M-5, M-6 or M-7 insn. */
return ! find_major_in_vliw (vliw, FR500_MAJOR_M_1)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_M_7)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_3)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
&& ! find_major_in_vliw (vliw, FR500_MAJOR_F_7);
default:
fprintf (stderr, "frv-opc.c, line %d: bad major code, aborting.\n",
__LINE__);
abort ();
break;
}
return TRUE;
}
static bfd_boolean
check_insn_major_constraints (FRV_VLIW *vliw,
CGEN_ATTR_VALUE_ENUM_TYPE major,
const CGEN_INSN *insn)
{
switch (vliw->mach)
{
case bfd_mach_fr400:
return fr400_check_insn_major_constraints (vliw, major);
case bfd_mach_fr450:
return fr450_check_insn_major_constraints (vliw, major);
case bfd_mach_fr550:
return fr550_check_insn_major_constraints (vliw, major, insn);
default:
return fr500_check_insn_major_constraints (vliw, major);
}
}
/* Add in insn to the VLIW vliw if possible.
Return 0 if successful, non-zero otherwise. */
int
frv_vliw_add_insn (FRV_VLIW *vliw, const CGEN_INSN *insn)
{
int slot_index;
CGEN_ATTR_VALUE_ENUM_TYPE major;
CGEN_ATTR_VALUE_ENUM_TYPE unit;
VLIW_COMBO *new_vliw;
if (vliw->constraint_violation || CGEN_INSN_INVALID_P (insn))
return 1;
slot_index = vliw->next_slot;
if (slot_index >= FRV_VLIW_SIZE)
return 1;
unit = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_UNIT);
if (unit == UNIT_NIL)
{
fprintf (stderr, "frv-opc.c line %d: bad insn unit.\n",
__LINE__);
abort (); /* No UNIT specified for this insn in frv.cpu. */
}
switch (vliw->mach)
{
case bfd_mach_fr400:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR);
break;
case bfd_mach_fr450:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR450_MAJOR);
break;
case bfd_mach_fr550:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR550_MAJOR);
break;
default:
major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR);
break;
}
if (slot_index <= 0)
{
/* Any insn can be added to slot 0. */
while (! match_unit (vliw, unit, (*vliw->current_vliw)[0]))
++vliw->current_vliw;
vliw->major[0] = major;
vliw->insn[0] = insn;
vliw->next_slot = 1;
return 0;
}
/* If there are already insns in the vliw(s) check to see that
this one can be added. Do this by finding an allowable vliw
combination that can accept the new insn. */
if (! (vliw->elf_flags & EF_FRV_NOPACK))
{
new_vliw = add_next_to_vliw (vliw, unit);
if (new_vliw && check_insn_major_constraints (vliw, major, insn))
{
vliw->current_vliw = new_vliw;
vliw->major[slot_index] = major;
vliw->insn[slot_index] = insn;
vliw->next_slot++;
return 0;
}
/* The frv machine supports all packing conbinations. If we fail,
to add the insn, then it could not be handled as if it was the fr500.
Just return as if it was handled ok. */
if (vliw->mach == bfd_mach_frv)
return 0;
}
vliw->constraint_violation = 1;
return 1;
}
bfd_boolean
spr_valid (long regno)
{
if (regno < 0) return FALSE;
if (regno <= 4095) return TRUE;
return FALSE;
}
/* -- */
/* The hash functions are recorded here to help keep assembler code out of
the disassembler and vice versa. */
static int asm_hash_insn_p (const CGEN_INSN *);
static unsigned int asm_hash_insn (const char *);
static int dis_hash_insn_p (const CGEN_INSN *);
static unsigned int dis_hash_insn (const char *, CGEN_INSN_INT);
/* Instruction formats. */
#define F(f) & frv_cgen_ifld_table[FRV_##f]
static const CGEN_IFMT ifmt_empty ATTRIBUTE_UNUSED = {
0, 0, 0x0, { { 0 } }
};
static const CGEN_IFMT ifmt_add ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1_NULL) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_not ATTRIBUTE_UNUSED = {
32, 32, 0x1ffffc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_RS_NULL) }, { F (F_ICCI_1_NULL) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_smul ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1_NULL) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_smu ATTRIBUTE_UNUSED = {
32, 32, 0x7ffc0fc0, { { F (F_PACK) }, { F (F_RD_NULL) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_slass ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_scutss ATTRIBUTE_UNUSED = {
32, 32, 0x1ffffc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_RS_NULL) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_cadd ATTRIBUTE_UNUSED = {
32, 32, 0x1fc00c0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_CCI) }, { F (F_COND) }, { F (F_OPE4) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_cnot ATTRIBUTE_UNUSED = {
32, 32, 0x1fff0c0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_RS_NULL) }, { F (F_CCI) }, { F (F_COND) }, { F (F_OPE4) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_csmul ATTRIBUTE_UNUSED = {
32, 32, 0x1fc00c0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_CCI) }, { F (F_COND) }, { F (F_OPE4) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_addcc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc03c0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_smulcc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc03c0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_addi ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_D12) }, { 0 } }
};
static const CGEN_IFMT ifmt_smuli ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_D12) }, { 0 } }
};
static const CGEN_IFMT ifmt_addicc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1) }, { F (F_S10) }, { 0 } }
};
static const CGEN_IFMT ifmt_smulicc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1) }, { F (F_S10) }, { 0 } }
};
static const CGEN_IFMT ifmt_cmpb ATTRIBUTE_UNUSED = {
32, 32, 0x7ffc03c0, { { F (F_PACK) }, { F (F_GRK_NULL) }, { F (F_OP) }, { F (F_GRI) }, { F (F_ICCI_1) }, { F (F_OPE2) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_setlo ATTRIBUTE_UNUSED = {
32, 32, 0x1ff0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_MISC_NULL_4) }, { F (F_U16) }, { 0 } }
};
static const CGEN_IFMT ifmt_sethi ATTRIBUTE_UNUSED = {
32, 32, 0x1ff0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_MISC_NULL_4) }, { F (F_U16) }, { 0 } }
};
static const CGEN_IFMT ifmt_setlos ATTRIBUTE_UNUSED = {
32, 32, 0x1ff0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_MISC_NULL_4) }, { F (F_S16) }, { 0 } }
};
static const CGEN_IFMT ifmt_ldbf ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_FRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_ldc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_CPRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_ldd ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_lddf ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_FRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_lddc ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0fc0, { { F (F_PACK) }, { F (F_CPRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_OPE1) }, { F (F_GRJ) }, { 0 } }
};
static const CGEN_IFMT ifmt_ldsbi ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_GRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_D12) }, { 0 } }
};
static const CGEN_IFMT ifmt_ldbfi ATTRIBUTE_UNUSED = {
32, 32, 0x1fc0000, { { F (F_PACK) }, { F (F_FRK) }, { F (F_OP) }, { F (F_GRI) }, { F (F_D12) }, { 0 } }
};