newlib/include/opcode/sparc.h

/* Definitions for opcode table for the sparc.
   Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000, 2002,
   2003, 2005, 2010, 2011 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 3, 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 COPYING3.  If not, write to
   the Free Software Foundation, 51 Franklin Street - Fifth Floor,
   Boston, MA 02110-1301, 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.  */

typedef 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;
} sparc_opcode_arch;

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 (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.  */

typedef 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.  */
  unsigned int flags;
  unsigned int hwcaps;
  short architecture;	/* Bitmask of sparc_opcode_arch_val's.  */
} sparc_opcode;

/* FIXME: Add F_ANACHRONISTIC flag for v9.  */
#define	F_DELAYED	0x00000001 /* Delayed branch.  */
#define	F_ALIAS		0x00000002 /* Alias for a "real" instruction.  */
#define	F_UNBR		0x00000004 /* Unconditional branch.  */
#define	F_CONDBR	0x00000008 /* Conditional branch.  */
#define	F_JSR		0x00000010 /* Subroutine call.  */
#define F_FLOAT		0x00000020 /* Floating point instruction (not a branch).  */
#define F_FBR		0x00000040 /* Floating point branch.  */
#define F_PREFERRED	0x00000080 /* A preferred alias.  */

#define F_PREF_ALIAS	(F_ALIAS|F_PREFERRED)

/* These must match the HWCAP_* values precisely.  */
#define HWCAP_MUL32	0x00000001 /* umul/umulcc/smul/smulcc insns */
#define HWCAP_DIV32	0x00000002 /* udiv/udivcc/sdiv/sdivcc insns */
#define HWCAP_FSMULD	0x00000004 /* 'fsmuld' insn */
#define HWCAP_V8PLUS	0x00000008 /* v9 insns available to 32bit */
#define HWCAP_POPC	0x00000010 /* 'popc' insn */
#define HWCAP_VIS	0x00000020 /* VIS insns */
#define HWCAP_VIS2	0x00000040 /* VIS2 insns */
#define HWCAP_ASI_BLK_INIT	\
			0x00000080 /* block init ASIs */
#define HWCAP_FMAF	0x00000100 /* fused multiply-add */
#define HWCAP_VIS3	0x00000400 /* VIS3 insns */
#define HWCAP_HPC	0x00000800 /* HPC insns */
#define HWCAP_RANDOM	0x00001000 /* 'random' insn */
#define HWCAP_TRANS	0x00002000 /* transaction insns */
#define HWCAP_FJFMAU	0x00004000 /* unfused multiply-add */
#define HWCAP_IMA	0x00008000 /* integer multiply-add */
#define HWCAP_ASI_CACHE_SPARING \
			0x00010000 /* cache sparing ASIs */
#define HWCAP_AES	0x00020000 /* AES crypto insns */
#define HWCAP_DES	0x00040000 /* DES crypto insns */
#define HWCAP_KASUMI	0x00080000 /* KASUMI crypto insns */
#define HWCAP_CAMELLIA 	0x00100000 /* CAMELLIA crypto insns */
#define HWCAP_MD5	0x00200000 /* MD5 hashing insns */
#define HWCAP_SHA1	0x00400000 /* SHA1 hashing insns */
#define HWCAP_SHA256	0x00800000 /* SHA256 hashing insns */
#define HWCAP_SHA512	0x01000000 /* SHA512 hashing insns */
#define HWCAP_MPMUL	0x02000000 /* Multiple Precision Multiply */
#define HWCAP_MONT	0x04000000 /* Montgomery Mult/Sqrt */
#define HWCAP_PAUSE	0x08000000 /* Pause insn */
#define HWCAP_CBCOND	0x10000000 /* Compare and Branch insns */
#define HWCAP_CRC32C	0x20000000 /* CRC32C insn */

/* 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).
	4	frs3 floating point register.
	5	frs3 floating point register (doube/even).
	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)
	(	entire floating point state register (%efsr)
	)	5 bit immediate placed in RS3 field
	=	2+8 bit PC relative immediate. (v9)  */

#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 OPF_LOW4(x)	OPF ((x) & 0xf)      /* V9.  */
#define F3F(x, y, z)	(OP (x) | OP3 (y) | OPF (z)) /* Format3 float insns.  */
#define F3F4(x, y, z)	(OP (x) | OP3 (y) | OPF_LOW4 (z))
#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 RS3(x)		(((x) & 0x1f) << 9)  /* Rs3 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 (const char *);
extern const char *sparc_decode_asi (int);
extern int sparc_encode_membar (const char *);
extern const char *sparc_decode_membar (int);
extern int sparc_encode_prefetch (const char *);
extern const char *sparc_decode_prefetch (int);
extern int sparc_encode_sparclet_cpreg (const char *);
extern const char *sparc_decode_sparclet_cpreg (int);

/* Local Variables:
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   End: */