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Diffstat (limited to 'include/opcode/sparc.h')
| -rw-r--r-- | include/opcode/sparc.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/include/opcode/sparc.h b/include/opcode/sparc.h new file mode 100644 index 000000000..4f159bd89 --- /dev/null +++ b/include/opcode/sparc.h @@ -0,0 +1,240 @@ +/* Definitions for opcode table for the sparc. + Copyright (C) 1989, 91, 92, 93, 94, 95, 96, 1997 + 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_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 + 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) +[345] + +*/ + +#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 */ |