243 lines
8.4 KiB
C
243 lines
8.4 KiB
C
/* Definitions for opcode table for the sparc.
|
|
Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000, 2002
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of GAS, the GNU Assembler, GDB, the GNU debugger, and
|
|
the GNU Binutils.
|
|
|
|
GAS/GDB 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, or (at your option)
|
|
any later version.
|
|
|
|
GAS/GDB 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 GAS or GDB; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "ansidecl.h"
|
|
|
|
/* The SPARC opcode table (and other related data) is defined in
|
|
the opcodes library in sparc-opc.c. If you change anything here, make
|
|
sure you fix up that file, and vice versa. */
|
|
|
|
/* FIXME-someday: perhaps the ,a's and such should be embedded in the
|
|
instruction's name rather than the args. This would make gas faster, pinsn
|
|
slower, but would mess up some macros a bit. xoxorich. */
|
|
|
|
/* List of instruction sets variations.
|
|
These values are such that each element is either a superset of a
|
|
preceding each one or they conflict in which case SPARC_OPCODE_CONFLICT_P
|
|
returns non-zero.
|
|
The values are indices into `sparc_opcode_archs' defined in sparc-opc.c.
|
|
Don't change this without updating sparc-opc.c. */
|
|
|
|
enum sparc_opcode_arch_val {
|
|
SPARC_OPCODE_ARCH_V6 = 0,
|
|
SPARC_OPCODE_ARCH_V7,
|
|
SPARC_OPCODE_ARCH_V8,
|
|
SPARC_OPCODE_ARCH_SPARCLET,
|
|
SPARC_OPCODE_ARCH_SPARCLITE,
|
|
/* v9 variants must appear last */
|
|
SPARC_OPCODE_ARCH_V9,
|
|
SPARC_OPCODE_ARCH_V9A, /* v9 with ultrasparc additions */
|
|
SPARC_OPCODE_ARCH_V9B, /* v9 with ultrasparc and cheetah additions */
|
|
SPARC_OPCODE_ARCH_BAD /* error return from sparc_opcode_lookup_arch */
|
|
};
|
|
|
|
/* The highest architecture in the table. */
|
|
#define SPARC_OPCODE_ARCH_MAX (SPARC_OPCODE_ARCH_BAD - 1)
|
|
|
|
/* Given an enum sparc_opcode_arch_val, return the bitmask to use in
|
|
insn encoding/decoding. */
|
|
#define SPARC_OPCODE_ARCH_MASK(arch) (1 << (arch))
|
|
|
|
/* Given a valid sparc_opcode_arch_val, return non-zero if it's v9. */
|
|
#define SPARC_OPCODE_ARCH_V9_P(arch) ((arch) >= SPARC_OPCODE_ARCH_V9)
|
|
|
|
/* Table of cpu variants. */
|
|
|
|
struct sparc_opcode_arch {
|
|
const char *name;
|
|
/* Mask of sparc_opcode_arch_val's supported.
|
|
EG: For v7 this would be
|
|
(SPARC_OPCODE_ARCH_MASK (..._V6) | SPARC_OPCODE_ARCH_MASK (..._V7)).
|
|
These are short's because sparc_opcode.architecture is. */
|
|
short supported;
|
|
};
|
|
|
|
extern const struct sparc_opcode_arch sparc_opcode_archs[];
|
|
|
|
/* Given architecture name, look up it's sparc_opcode_arch_val value. */
|
|
extern enum sparc_opcode_arch_val sparc_opcode_lookup_arch
|
|
PARAMS ((const char *));
|
|
|
|
/* Return the bitmask of supported architectures for ARCH. */
|
|
#define SPARC_OPCODE_SUPPORTED(ARCH) (sparc_opcode_archs[ARCH].supported)
|
|
|
|
/* Non-zero if ARCH1 conflicts with ARCH2.
|
|
IE: ARCH1 as a supported bit set that ARCH2 doesn't, and vice versa. */
|
|
#define SPARC_OPCODE_CONFLICT_P(ARCH1, ARCH2) \
|
|
(((SPARC_OPCODE_SUPPORTED (ARCH1) & SPARC_OPCODE_SUPPORTED (ARCH2)) \
|
|
!= SPARC_OPCODE_SUPPORTED (ARCH1)) \
|
|
&& ((SPARC_OPCODE_SUPPORTED (ARCH1) & SPARC_OPCODE_SUPPORTED (ARCH2)) \
|
|
!= SPARC_OPCODE_SUPPORTED (ARCH2)))
|
|
|
|
/* Structure of an opcode table entry. */
|
|
|
|
struct sparc_opcode {
|
|
const char *name;
|
|
unsigned long match; /* Bits that must be set. */
|
|
unsigned long lose; /* Bits that must not be set. */
|
|
const char *args;
|
|
/* This was called "delayed" in versions before the flags. */
|
|
char flags;
|
|
short architecture; /* Bitmask of sparc_opcode_arch_val's. */
|
|
};
|
|
|
|
#define F_DELAYED 1 /* Delayed branch */
|
|
#define F_ALIAS 2 /* Alias for a "real" instruction */
|
|
#define F_UNBR 4 /* Unconditional branch */
|
|
#define F_CONDBR 8 /* Conditional branch */
|
|
#define F_JSR 16 /* Subroutine call */
|
|
#define F_FLOAT 32 /* Floating point instruction (not a branch) */
|
|
#define F_FBR 64 /* Floating point branch */
|
|
/* FIXME: Add F_ANACHRONISTIC flag for v9. */
|
|
|
|
/*
|
|
|
|
All sparc opcodes are 32 bits, except for the `set' instruction (really a
|
|
macro), which is 64 bits. It is handled as a special case.
|
|
|
|
The match component is a mask saying which bits must match a particular
|
|
opcode in order for an instruction to be an instance of that opcode.
|
|
|
|
The args component is a string containing one character for each operand of the
|
|
instruction.
|
|
|
|
Kinds of operands:
|
|
# Number used by optimizer. It is ignored.
|
|
1 rs1 register.
|
|
2 rs2 register.
|
|
d rd register.
|
|
e frs1 floating point register.
|
|
v frs1 floating point register (double/even).
|
|
V frs1 floating point register (quad/multiple of 4).
|
|
f frs2 floating point register.
|
|
B frs2 floating point register (double/even).
|
|
R frs2 floating point register (quad/multiple of 4).
|
|
g frsd floating point register.
|
|
H frsd floating point register (double/even).
|
|
J frsd floating point register (quad/multiple of 4).
|
|
b crs1 coprocessor register
|
|
c crs2 coprocessor register
|
|
D crsd coprocessor register
|
|
m alternate space register (asr) in rd
|
|
M alternate space register (asr) in rs1
|
|
h 22 high bits.
|
|
X 5 bit unsigned immediate
|
|
Y 6 bit unsigned immediate
|
|
3 SIAM mode (3 bits). (v9b)
|
|
K MEMBAR mask (7 bits). (v9)
|
|
j 10 bit Immediate. (v9)
|
|
I 11 bit Immediate. (v9)
|
|
i 13 bit Immediate.
|
|
n 22 bit immediate.
|
|
k 2+14 bit PC relative immediate. (v9)
|
|
G 19 bit PC relative immediate. (v9)
|
|
l 22 bit PC relative immediate.
|
|
L 30 bit PC relative immediate.
|
|
a Annul. The annul bit is set.
|
|
A Alternate address space. Stored as 8 bits.
|
|
C Coprocessor state register.
|
|
F floating point state register.
|
|
p Processor state register.
|
|
N Branch predict clear ",pn" (v9)
|
|
T Branch predict set ",pt" (v9)
|
|
z %icc. (v9)
|
|
Z %xcc. (v9)
|
|
q Floating point queue.
|
|
r Single register that is both rs1 and rd.
|
|
O Single register that is both rs2 and rd.
|
|
Q Coprocessor queue.
|
|
S Special case.
|
|
t Trap base register.
|
|
w Window invalid mask register.
|
|
y Y register.
|
|
u sparclet coprocessor registers in rd position
|
|
U sparclet coprocessor registers in rs1 position
|
|
E %ccr. (v9)
|
|
s %fprs. (v9)
|
|
P %pc. (v9)
|
|
W %tick. (v9)
|
|
o %asi. (v9)
|
|
6 %fcc0. (v9)
|
|
7 %fcc1. (v9)
|
|
8 %fcc2. (v9)
|
|
9 %fcc3. (v9)
|
|
! Privileged Register in rd (v9)
|
|
? Privileged Register in rs1 (v9)
|
|
* Prefetch function constant. (v9)
|
|
x OPF field (v9 impdep).
|
|
0 32/64 bit immediate for set or setx (v9) insns
|
|
_ Ancillary state register in rd (v9a)
|
|
/ Ancillary state register in rs1 (v9a)
|
|
|
|
The following chars are unused: (note: ,[] are used as punctuation)
|
|
[45]
|
|
|
|
*/
|
|
|
|
#define OP2(x) (((x)&0x7) << 22) /* op2 field of format2 insns */
|
|
#define OP3(x) (((x)&0x3f) << 19) /* op3 field of format3 insns */
|
|
#define OP(x) ((unsigned)((x)&0x3) << 30) /* op field of all insns */
|
|
#define OPF(x) (((x)&0x1ff) << 5) /* opf field of float insns */
|
|
#define OPF_LOW5(x) OPF((x)&0x1f) /* v9 */
|
|
#define F3F(x, y, z) (OP(x) | OP3(y) | OPF(z)) /* format3 float insns */
|
|
#define F3I(x) (((x)&0x1) << 13) /* immediate field of format 3 insns */
|
|
#define F2(x, y) (OP(x) | OP2(y)) /* format 2 insns */
|
|
#define F3(x, y, z) (OP(x) | OP3(y) | F3I(z)) /* format3 insns */
|
|
#define F1(x) (OP(x))
|
|
#define DISP30(x) ((x)&0x3fffffff)
|
|
#define ASI(x) (((x)&0xff) << 5) /* asi field of format3 insns */
|
|
#define RS2(x) ((x)&0x1f) /* rs2 field */
|
|
#define SIMM13(x) ((x)&0x1fff) /* simm13 field */
|
|
#define RD(x) (((x)&0x1f) << 25) /* destination register field */
|
|
#define RS1(x) (((x)&0x1f) << 14) /* rs1 field */
|
|
#define ASI_RS2(x) (SIMM13(x))
|
|
#define MEMBAR(x) ((x)&0x7f)
|
|
#define SLCPOP(x) (((x)&0x7f) << 6) /* sparclet cpop */
|
|
|
|
#define ANNUL (1<<29)
|
|
#define BPRED (1<<19) /* v9 */
|
|
#define IMMED F3I(1)
|
|
#define RD_G0 RD(~0)
|
|
#define RS1_G0 RS1(~0)
|
|
#define RS2_G0 RS2(~0)
|
|
|
|
extern const struct sparc_opcode sparc_opcodes[];
|
|
extern const int sparc_num_opcodes;
|
|
|
|
extern int sparc_encode_asi PARAMS ((const char *));
|
|
extern const char *sparc_decode_asi PARAMS ((int));
|
|
extern int sparc_encode_membar PARAMS ((const char *));
|
|
extern const char *sparc_decode_membar PARAMS ((int));
|
|
extern int sparc_encode_prefetch PARAMS ((const char *));
|
|
extern const char *sparc_decode_prefetch PARAMS ((int));
|
|
extern int sparc_encode_sparclet_cpreg PARAMS ((const char *));
|
|
extern const char *sparc_decode_sparclet_cpreg PARAMS ((int));
|
|
|
|
/*
|
|
* Local Variables:
|
|
* fill-column: 131
|
|
* comment-column: 0
|
|
* End:
|
|
*/
|
|
|
|
/* end of sparc.h */
|