241 lines
8.3 KiB
C
241 lines
8.3 KiB
C
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/* Definitions for opcode table for the sparc.
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Copyright (C) 1989, 91, 92, 93, 94, 95, 96, 1997
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Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler, GDB, the GNU debugger, and
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the GNU Binutils.
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GAS/GDB is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GAS/GDB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS or GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <ansidecl.h>
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/* The SPARC opcode table (and other related data) is defined in
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the opcodes library in sparc-opc.c. If you change anything here, make
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sure you fix up that file, and vice versa. */
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/* FIXME-someday: perhaps the ,a's and such should be embedded in the
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instruction's name rather than the args. This would make gas faster, pinsn
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slower, but would mess up some macros a bit. xoxorich. */
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/* List of instruction sets variations.
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These values are such that each element is either a superset of a
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preceding each one or they conflict in which case SPARC_OPCODE_CONFLICT_P
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returns non-zero.
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The values are indices into `sparc_opcode_archs' defined in sparc-opc.c.
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Don't change this without updating sparc-opc.c. */
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enum sparc_opcode_arch_val {
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SPARC_OPCODE_ARCH_V6 = 0,
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SPARC_OPCODE_ARCH_V7,
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SPARC_OPCODE_ARCH_V8,
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SPARC_OPCODE_ARCH_SPARCLET,
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SPARC_OPCODE_ARCH_SPARCLITE,
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/* v9 variants must appear last */
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SPARC_OPCODE_ARCH_V9,
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SPARC_OPCODE_ARCH_V9A, /* v9 with ultrasparc additions */
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SPARC_OPCODE_ARCH_BAD /* error return from sparc_opcode_lookup_arch */
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};
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/* The highest architecture in the table. */
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#define SPARC_OPCODE_ARCH_MAX (SPARC_OPCODE_ARCH_BAD - 1)
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/* Given an enum sparc_opcode_arch_val, return the bitmask to use in
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insn encoding/decoding. */
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#define SPARC_OPCODE_ARCH_MASK(arch) (1 << (arch))
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/* Given a valid sparc_opcode_arch_val, return non-zero if it's v9. */
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#define SPARC_OPCODE_ARCH_V9_P(arch) ((arch) >= SPARC_OPCODE_ARCH_V9)
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/* Table of cpu variants. */
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struct sparc_opcode_arch {
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const char *name;
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/* Mask of sparc_opcode_arch_val's supported.
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EG: For v7 this would be
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(SPARC_OPCODE_ARCH_MASK (..._V6) | SPARC_OPCODE_ARCH_MASK (..._V7)).
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These are short's because sparc_opcode.architecture is. */
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short supported;
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};
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extern const struct sparc_opcode_arch sparc_opcode_archs[];
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/* Given architecture name, look up it's sparc_opcode_arch_val value. */
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extern enum sparc_opcode_arch_val sparc_opcode_lookup_arch
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PARAMS ((const char *));
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/* Return the bitmask of supported architectures for ARCH. */
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#define SPARC_OPCODE_SUPPORTED(ARCH) (sparc_opcode_archs[ARCH].supported)
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/* Non-zero if ARCH1 conflicts with ARCH2.
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IE: ARCH1 as a supported bit set that ARCH2 doesn't, and vice versa. */
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#define SPARC_OPCODE_CONFLICT_P(ARCH1, ARCH2) \
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(((SPARC_OPCODE_SUPPORTED (ARCH1) & SPARC_OPCODE_SUPPORTED (ARCH2)) \
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!= SPARC_OPCODE_SUPPORTED (ARCH1)) \
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&& ((SPARC_OPCODE_SUPPORTED (ARCH1) & SPARC_OPCODE_SUPPORTED (ARCH2)) \
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!= SPARC_OPCODE_SUPPORTED (ARCH2)))
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/* Structure of an opcode table entry. */
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struct sparc_opcode {
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const char *name;
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unsigned long match; /* Bits that must be set. */
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unsigned long lose; /* Bits that must not be set. */
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const char *args;
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/* This was called "delayed" in versions before the flags. */
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char flags;
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short architecture; /* Bitmask of sparc_opcode_arch_val's. */
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};
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#define F_DELAYED 1 /* Delayed branch */
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#define F_ALIAS 2 /* Alias for a "real" instruction */
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#define F_UNBR 4 /* Unconditional branch */
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#define F_CONDBR 8 /* Conditional branch */
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#define F_JSR 16 /* Subroutine call */
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#define F_FLOAT 32 /* Floating point instruction (not a branch) */
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#define F_FBR 64 /* Floating point branch */
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/* FIXME: Add F_ANACHRONISTIC flag for v9. */
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/*
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All sparc opcodes are 32 bits, except for the `set' instruction (really a
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macro), which is 64 bits. It is handled as a special case.
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The match component is a mask saying which bits must match a particular
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opcode in order for an instruction to be an instance of that opcode.
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The args component is a string containing one character for each operand of the
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instruction.
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Kinds of operands:
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# Number used by optimizer. It is ignored.
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1 rs1 register.
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2 rs2 register.
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d rd register.
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e frs1 floating point register.
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v frs1 floating point register (double/even).
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V frs1 floating point register (quad/multiple of 4).
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f frs2 floating point register.
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B frs2 floating point register (double/even).
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R frs2 floating point register (quad/multiple of 4).
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g frsd floating point register.
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H frsd floating point register (double/even).
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J frsd floating point register (quad/multiple of 4).
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b crs1 coprocessor register
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c crs2 coprocessor register
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D crsd coprocessor register
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m alternate space register (asr) in rd
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M alternate space register (asr) in rs1
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h 22 high bits.
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X 5 bit unsigned immediate
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Y 6 bit unsigned immediate
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K MEMBAR mask (7 bits). (v9)
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j 10 bit Immediate. (v9)
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I 11 bit Immediate. (v9)
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i 13 bit Immediate.
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n 22 bit immediate.
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k 2+14 bit PC relative immediate. (v9)
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G 19 bit PC relative immediate. (v9)
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l 22 bit PC relative immediate.
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L 30 bit PC relative immediate.
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a Annul. The annul bit is set.
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A Alternate address space. Stored as 8 bits.
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C Coprocessor state register.
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F floating point state register.
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p Processor state register.
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N Branch predict clear ",pn" (v9)
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T Branch predict set ",pt" (v9)
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z %icc. (v9)
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Z %xcc. (v9)
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q Floating point queue.
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r Single register that is both rs1 and rd.
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O Single register that is both rs2 and rd.
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Q Coprocessor queue.
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S Special case.
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t Trap base register.
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w Window invalid mask register.
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y Y register.
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u sparclet coprocessor registers in rd position
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U sparclet coprocessor registers in rs1 position
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E %ccr. (v9)
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s %fprs. (v9)
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P %pc. (v9)
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W %tick. (v9)
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o %asi. (v9)
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6 %fcc0. (v9)
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7 %fcc1. (v9)
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8 %fcc2. (v9)
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9 %fcc3. (v9)
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! Privileged Register in rd (v9)
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? Privileged Register in rs1 (v9)
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* Prefetch function constant. (v9)
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x OPF field (v9 impdep).
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0 32/64 bit immediate for set or setx (v9) insns
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_ Ancillary state register in rd (v9a)
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/ Ancillary state register in rs1 (v9a)
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The following chars are unused: (note: ,[] are used as punctuation)
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[345]
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*/
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#define OP2(x) (((x)&0x7) << 22) /* op2 field of format2 insns */
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#define OP3(x) (((x)&0x3f) << 19) /* op3 field of format3 insns */
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#define OP(x) ((unsigned)((x)&0x3) << 30) /* op field of all insns */
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#define OPF(x) (((x)&0x1ff) << 5) /* opf field of float insns */
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#define OPF_LOW5(x) OPF((x)&0x1f) /* v9 */
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#define F3F(x, y, z) (OP(x) | OP3(y) | OPF(z)) /* format3 float insns */
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#define F3I(x) (((x)&0x1) << 13) /* immediate field of format 3 insns */
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#define F2(x, y) (OP(x) | OP2(y)) /* format 2 insns */
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#define F3(x, y, z) (OP(x) | OP3(y) | F3I(z)) /* format3 insns */
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#define F1(x) (OP(x))
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#define DISP30(x) ((x)&0x3fffffff)
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#define ASI(x) (((x)&0xff) << 5) /* asi field of format3 insns */
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#define RS2(x) ((x)&0x1f) /* rs2 field */
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#define SIMM13(x) ((x)&0x1fff) /* simm13 field */
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#define RD(x) (((x)&0x1f) << 25) /* destination register field */
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#define RS1(x) (((x)&0x1f) << 14) /* rs1 field */
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#define ASI_RS2(x) (SIMM13(x))
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#define MEMBAR(x) ((x)&0x7f)
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#define SLCPOP(x) (((x)&0x7f) << 6) /* sparclet cpop */
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#define ANNUL (1<<29)
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#define BPRED (1<<19) /* v9 */
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#define IMMED F3I(1)
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#define RD_G0 RD(~0)
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#define RS1_G0 RS1(~0)
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#define RS2_G0 RS2(~0)
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extern const struct sparc_opcode sparc_opcodes[];
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extern const int sparc_num_opcodes;
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extern int sparc_encode_asi PARAMS ((const char *));
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extern const char *sparc_decode_asi PARAMS ((int));
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extern int sparc_encode_membar PARAMS ((const char *));
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extern const char *sparc_decode_membar PARAMS ((int));
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extern int sparc_encode_prefetch PARAMS ((const char *));
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extern const char *sparc_decode_prefetch PARAMS ((int));
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extern int sparc_encode_sparclet_cpreg PARAMS ((const char *));
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extern const char *sparc_decode_sparclet_cpreg PARAMS ((int));
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/*
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* Local Variables:
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* fill-column: 131
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* comment-column: 0
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* End:
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*/
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/* end of sparc.h */
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