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/* Disassembler code for CRIS.
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Copyright 2000, 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
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Contributed by Axis Communications AB, Lund, Sweden.
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Written by Hans-Peter Nilsson.
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This file is part of the GNU binutils and GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "dis-asm.h" |
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//#include "sysdep.h"
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#include "target-cris/opcode-cris.h" |
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//#include "libiberty.h"
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void *qemu_malloc(size_t len); /* can't include qemu-common.h here */ |
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#define FALSE 0 |
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#define TRUE 1 |
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#define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0) |
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/* cris-opc.c -- Table of opcodes for the CRIS processor.
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Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
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Contributed by Axis Communications AB, Lund, Sweden.
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Originally written for GAS 1.38.1 by Mikael Asker.
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Reorganized by Hans-Peter Nilsson.
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This file is part of GAS, GDB and the GNU binutils.
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GAS, GDB, and GNU binutils is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at your
|
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option) any later version.
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GAS, GDB, and GNU binutils are distributed in the hope that they will be
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useful, 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 this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef NULL |
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#define NULL (0) |
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#endif
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/* This table isn't used for CRISv32 and the size of immediate operands. */
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const struct cris_spec_reg |
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cris_spec_regs[] = |
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{ |
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{"bz", 0, 1, cris_ver_v32p, NULL}, |
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{"p0", 0, 1, 0, NULL}, |
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{"vr", 1, 1, 0, NULL}, |
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{"p1", 1, 1, 0, NULL}, |
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{"pid", 2, 1, cris_ver_v32p, NULL}, |
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{"p2", 2, 1, cris_ver_v32p, NULL}, |
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{"p2", 2, 1, cris_ver_warning, NULL}, |
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{"srs", 3, 1, cris_ver_v32p, NULL}, |
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{"p3", 3, 1, cris_ver_v32p, NULL}, |
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{"p3", 3, 1, cris_ver_warning, NULL}, |
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{"wz", 4, 2, cris_ver_v32p, NULL}, |
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{"p4", 4, 2, 0, NULL}, |
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{"ccr", 5, 2, cris_ver_v0_10, NULL}, |
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{"exs", 5, 4, cris_ver_v32p, NULL}, |
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{"p5", 5, 2, cris_ver_v0_10, NULL}, |
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{"p5", 5, 4, cris_ver_v32p, NULL}, |
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{"dcr0",6, 2, cris_ver_v0_3, NULL}, |
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{"eda", 6, 4, cris_ver_v32p, NULL}, |
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{"p6", 6, 2, cris_ver_v0_3, NULL}, |
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{"p6", 6, 4, cris_ver_v32p, NULL}, |
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{"dcr1/mof", 7, 4, cris_ver_v10p, |
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"Register `dcr1/mof' with ambiguous size specified. Guessing 4 bytes"},
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{"dcr1/mof", 7, 2, cris_ver_v0_3, |
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"Register `dcr1/mof' with ambiguous size specified. Guessing 2 bytes"},
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{"mof", 7, 4, cris_ver_v10p, NULL}, |
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{"dcr1",7, 2, cris_ver_v0_3, NULL}, |
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{"p7", 7, 4, cris_ver_v10p, NULL}, |
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{"p7", 7, 2, cris_ver_v0_3, NULL}, |
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{"dz", 8, 4, cris_ver_v32p, NULL}, |
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{"p8", 8, 4, 0, NULL}, |
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{"ibr", 9, 4, cris_ver_v0_10, NULL}, |
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{"ebp", 9, 4, cris_ver_v32p, NULL}, |
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{"p9", 9, 4, 0, NULL}, |
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{"irp", 10, 4, cris_ver_v0_10, NULL}, |
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{"erp", 10, 4, cris_ver_v32p, NULL}, |
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{"p10", 10, 4, 0, NULL}, |
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{"srp", 11, 4, 0, NULL}, |
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{"p11", 11, 4, 0, NULL}, |
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/* For disassembly use only. Accept at assembly with a warning. */
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{"bar/dtp0", 12, 4, cris_ver_warning, |
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"Ambiguous register `bar/dtp0' specified"},
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{"nrp", 12, 4, cris_ver_v32p, NULL}, |
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{"bar", 12, 4, cris_ver_v8_10, NULL}, |
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{"dtp0",12, 4, cris_ver_v0_3, NULL}, |
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{"p12", 12, 4, 0, NULL}, |
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/* For disassembly use only. Accept at assembly with a warning. */
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{"dccr/dtp1",13, 4, cris_ver_warning, |
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"Ambiguous register `dccr/dtp1' specified"},
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{"ccs", 13, 4, cris_ver_v32p, NULL}, |
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{"dccr",13, 4, cris_ver_v8_10, NULL}, |
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{"dtp1",13, 4, cris_ver_v0_3, NULL}, |
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{"p13", 13, 4, 0, NULL}, |
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{"brp", 14, 4, cris_ver_v3_10, NULL}, |
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{"usp", 14, 4, cris_ver_v32p, NULL}, |
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{"p14", 14, 4, cris_ver_v3p, NULL}, |
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{"usp", 15, 4, cris_ver_v10, NULL}, |
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{"spc", 15, 4, cris_ver_v32p, NULL}, |
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{"p15", 15, 4, cris_ver_v10p, NULL}, |
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{NULL, 0, 0, cris_ver_version_all, NULL} |
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}; |
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/* Add version specifiers to this table when necessary.
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The (now) regular coding of register names suggests a simpler
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implementation. */
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const struct cris_support_reg cris_support_regs[] = |
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{ |
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{"s0", 0}, |
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{"s1", 1}, |
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{"s2", 2}, |
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{"s3", 3}, |
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{"s4", 4}, |
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{"s5", 5}, |
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{"s6", 6}, |
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{"s7", 7}, |
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{"s8", 8}, |
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{"s9", 9}, |
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{"s10", 10}, |
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{"s11", 11}, |
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{"s12", 12}, |
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{"s13", 13}, |
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{"s14", 14}, |
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{"s15", 15}, |
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{NULL, 0} |
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}; |
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/* All CRIS opcodes are 16 bits.
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- The match component is a mask saying which bits must match a
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particular opcode in order for an instruction to be an instance
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of that opcode.
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- The args component is a string containing characters symbolically
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matching the operands of an instruction. Used for both assembly
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and disassembly.
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Operand-matching characters:
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[ ] , space
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Verbatim.
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A The string "ACR" (case-insensitive).
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B Not really an operand. It causes a "BDAP -size,SP" prefix to be
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output for the PUSH alias-instructions and recognizes a push-
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prefix at disassembly. This letter isn't recognized for v32.
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Must be followed by a R or P letter.
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! Non-match pattern, will not match if there's a prefix insn.
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b Non-matching operand, used for branches with 16-bit
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displacement. Only recognized by the disassembler.
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c 5-bit unsigned immediate in bits <4:0>.
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C 4-bit unsigned immediate in bits <3:0>.
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d At assembly, optionally (as in put other cases before this one)
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".d" or ".D" at the start of the operands, followed by one space
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character. At disassembly, nothing.
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D General register in bits <15:12> and <3:0>.
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f List of flags in bits <15:12> and <3:0>.
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i 6-bit signed immediate in bits <5:0>.
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I 6-bit unsigned immediate in bits <5:0>.
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M Size modifier (B, W or D) for CLEAR instructions.
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m Size modifier (B, W or D) in bits <5:4>
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N A 32-bit dword, like in the difference between s and y.
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This has no effect on bits in the opcode. Can also be expressed
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as "[pc+]" in input.
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n As N, but PC-relative (to the start of the instruction).
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o [-128..127] word offset in bits <7:1> and <0>. Used by 8-bit
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branch instructions.
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O [-128..127] offset in bits <7:0>. Also matches a comma and a
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general register after the expression, in bits <15:12>. Used
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only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
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P Special register in bits <15:12>.
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p Indicates that the insn is a prefix insn. Must be first
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character.
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Q As O, but don't relax; force an 8-bit offset.
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R General register in bits <15:12>.
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r General register in bits <3:0>.
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S Source operand in bit <10> and a prefix; a 3-operand prefix
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without side-effect.
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s Source operand in bits <10> and <3:0>, optionally with a
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side-effect prefix, except [pc] (the name, not R15 as in ACR)
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isn't allowed for v32 and higher.
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T Support register in bits <15:12>.
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u 4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
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U Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
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Not recognized at disassembly.
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x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
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y Like 's' but do not allow an integer at assembly.
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Y The difference s-y; only an integer is allowed.
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z Size modifier (B or W) in bit <4>. */
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/* Please note the order of the opcodes in this table is significant.
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The assembler requires that all instances of the same mnemonic must
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be consecutive. If they aren't, the assembler might not recognize
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them, or may indicate an internal error.
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The disassembler should not normally care about the order of the
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opcodes, but will prefer an earlier alternative if the "match-score"
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(see cris-dis.c) is computed as equal.
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It should not be significant for proper execution that this table is
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in alphabetical order, but please follow that convention for an easy
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overview. */
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const struct cris_opcode |
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cris_opcodes[] = |
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{ |
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{"abs", 0x06B0, 0x0940, "r,R", 0, SIZE_NONE, 0, |
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cris_abs_op}, |
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{"add", 0x0600, 0x09c0, "m r,R", 0, SIZE_NONE, 0, |
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cris_reg_mode_add_sub_cmp_and_or_move_op}, |
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{"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, 0, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
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{"add", 0x0A00, 0x01c0, "m S,D", 0, SIZE_NONE, |
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cris_ver_v0_10, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
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{"add", 0x0a00, 0x05c0, "m S,R,r", 0, SIZE_NONE, |
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cris_ver_v0_10, |
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cris_three_operand_add_sub_cmp_and_or_op}, |
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{"add", 0x0A00, 0x01c0, "m s,R", 0, SIZE_FIELD, |
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cris_ver_v32p, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
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{"addc", 0x0570, 0x0A80, "r,R", 0, SIZE_FIX_32, |
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cris_ver_v32p, |
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cris_not_implemented_op}, |
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|
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{"addc", 0x09A0, 0x0250, "s,R", 0, SIZE_FIX_32, |
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cris_ver_v32p, |
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cris_not_implemented_op}, |
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|
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{"addi", 0x0540, 0x0A80, "x,r,A", 0, SIZE_NONE, |
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cris_ver_v32p, |
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cris_addi_op}, |
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{"addi", 0x0500, 0x0Ac0, "x,r", 0, SIZE_NONE, 0, |
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cris_addi_op}, |
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|
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/* This collates after "addo", but we want to disassemble as "addoq",
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not "addo". */
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{"addoq", 0x0100, 0x0E00, "Q,A", 0, SIZE_NONE, |
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cris_ver_v32p, |
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cris_not_implemented_op}, |
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|
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{"addo", 0x0940, 0x0280, "m s,R,A", 0, SIZE_FIELD_SIGNED, |
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cris_ver_v32p, |
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cris_not_implemented_op}, |
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|
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/* This must be located after the insn above, lest we misinterpret
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"addo.b -1,r0,acr" as "addo .b-1,r0,acr". FIXME: Sounds like a
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parser bug. */
|
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{"addo", 0x0100, 0x0E00, "O,A", 0, SIZE_NONE, |
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cris_ver_v32p, |
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cris_not_implemented_op}, |
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|
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{"addq", 0x0200, 0x0Dc0, "I,R", 0, SIZE_NONE, 0, |
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cris_quick_mode_add_sub_op}, |
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|
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{"adds", 0x0420, 0x0Bc0, "z r,R", 0, SIZE_NONE, 0, |
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cris_reg_mode_add_sub_cmp_and_or_move_op}, |
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|
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/* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
|
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{"adds", 0x0820, 0x03c0, "z s,R", 0, SIZE_FIELD, 0, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
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|
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{"adds", 0x0820, 0x03c0, "z S,D", 0, SIZE_NONE, |
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cris_ver_v0_10, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
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|
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{"adds", 0x0820, 0x07c0, "z S,R,r", 0, SIZE_NONE, |
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cris_ver_v0_10, |
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cris_three_operand_add_sub_cmp_and_or_op}, |
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|
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{"addu", 0x0400, 0x0be0, "z r,R", 0, SIZE_NONE, 0, |
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cris_reg_mode_add_sub_cmp_and_or_move_op}, |
301 |
|
302 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
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{"addu", 0x0800, 0x03e0, "z s,R", 0, SIZE_FIELD, 0, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
305 |
|
306 |
{"addu", 0x0800, 0x03e0, "z S,D", 0, SIZE_NONE, |
307 |
cris_ver_v0_10, |
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cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
309 |
|
310 |
{"addu", 0x0800, 0x07e0, "z S,R,r", 0, SIZE_NONE, |
311 |
cris_ver_v0_10, |
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cris_three_operand_add_sub_cmp_and_or_op}, |
313 |
|
314 |
{"and", 0x0700, 0x08C0, "m r,R", 0, SIZE_NONE, 0, |
315 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
316 |
|
317 |
{"and", 0x0B00, 0x00C0, "m s,R", 0, SIZE_FIELD, 0, |
318 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
319 |
|
320 |
{"and", 0x0B00, 0x00C0, "m S,D", 0, SIZE_NONE, |
321 |
cris_ver_v0_10, |
322 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
323 |
|
324 |
{"and", 0x0B00, 0x04C0, "m S,R,r", 0, SIZE_NONE, |
325 |
cris_ver_v0_10, |
326 |
cris_three_operand_add_sub_cmp_and_or_op}, |
327 |
|
328 |
{"andq", 0x0300, 0x0CC0, "i,R", 0, SIZE_NONE, 0, |
329 |
cris_quick_mode_and_cmp_move_or_op}, |
330 |
|
331 |
{"asr", 0x0780, 0x0840, "m r,R", 0, SIZE_NONE, 0, |
332 |
cris_asr_op}, |
333 |
|
334 |
{"asrq", 0x03a0, 0x0c40, "c,R", 0, SIZE_NONE, 0, |
335 |
cris_asrq_op}, |
336 |
|
337 |
{"ax", 0x15B0, 0xEA4F, "", 0, SIZE_NONE, 0, |
338 |
cris_ax_ei_setf_op}, |
339 |
|
340 |
/* FIXME: Should use branch #defines. */
|
341 |
{"b", 0x0dff, 0x0200, "b", 1, SIZE_NONE, 0, |
342 |
cris_sixteen_bit_offset_branch_op}, |
343 |
|
344 |
{"ba",
|
345 |
BA_QUICK_OPCODE, |
346 |
0x0F00+(0xF-CC_A)*0x1000, "o", 1, SIZE_NONE, 0, |
347 |
cris_eight_bit_offset_branch_op}, |
348 |
|
349 |
/* Needs to come after the usual "ba o", which might be relaxed to
|
350 |
this one. */
|
351 |
{"ba", BA_DWORD_OPCODE,
|
352 |
0xffff & (~BA_DWORD_OPCODE), "n", 0, SIZE_FIX_32, |
353 |
cris_ver_v32p, |
354 |
cris_none_reg_mode_jump_op}, |
355 |
|
356 |
{"bas", 0x0EBF, 0x0140, "n,P", 0, SIZE_FIX_32, |
357 |
cris_ver_v32p, |
358 |
cris_none_reg_mode_jump_op}, |
359 |
|
360 |
{"basc", 0x0EFF, 0x0100, "n,P", 0, SIZE_FIX_32, |
361 |
cris_ver_v32p, |
362 |
cris_none_reg_mode_jump_op}, |
363 |
|
364 |
{"bcc",
|
365 |
BRANCH_QUICK_OPCODE+CC_CC*0x1000,
|
366 |
0x0f00+(0xF-CC_CC)*0x1000, "o", 1, SIZE_NONE, 0, |
367 |
cris_eight_bit_offset_branch_op}, |
368 |
|
369 |
{"bcs",
|
370 |
BRANCH_QUICK_OPCODE+CC_CS*0x1000,
|
371 |
0x0f00+(0xF-CC_CS)*0x1000, "o", 1, SIZE_NONE, 0, |
372 |
cris_eight_bit_offset_branch_op}, |
373 |
|
374 |
{"bdap",
|
375 |
BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS, "pm s,R", 0, SIZE_FIELD_SIGNED, |
376 |
cris_ver_v0_10, |
377 |
cris_bdap_prefix}, |
378 |
|
379 |
{"bdap",
|
380 |
BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS, "pO", 0, SIZE_NONE, |
381 |
cris_ver_v0_10, |
382 |
cris_quick_mode_bdap_prefix}, |
383 |
|
384 |
{"beq",
|
385 |
BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
|
386 |
0x0f00+(0xF-CC_EQ)*0x1000, "o", 1, SIZE_NONE, 0, |
387 |
cris_eight_bit_offset_branch_op}, |
388 |
|
389 |
/* This is deliberately put before "bext" to trump it, even though not
|
390 |
in alphabetical order, since we don't do excluding version checks
|
391 |
for v0..v10. */
|
392 |
{"bwf",
|
393 |
BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
|
394 |
0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE, |
395 |
cris_ver_v10, |
396 |
cris_eight_bit_offset_branch_op}, |
397 |
|
398 |
{"bext",
|
399 |
BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
|
400 |
0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE, |
401 |
cris_ver_v0_3, |
402 |
cris_eight_bit_offset_branch_op}, |
403 |
|
404 |
{"bge",
|
405 |
BRANCH_QUICK_OPCODE+CC_GE*0x1000,
|
406 |
0x0f00+(0xF-CC_GE)*0x1000, "o", 1, SIZE_NONE, 0, |
407 |
cris_eight_bit_offset_branch_op}, |
408 |
|
409 |
{"bgt",
|
410 |
BRANCH_QUICK_OPCODE+CC_GT*0x1000,
|
411 |
0x0f00+(0xF-CC_GT)*0x1000, "o", 1, SIZE_NONE, 0, |
412 |
cris_eight_bit_offset_branch_op}, |
413 |
|
414 |
{"bhi",
|
415 |
BRANCH_QUICK_OPCODE+CC_HI*0x1000,
|
416 |
0x0f00+(0xF-CC_HI)*0x1000, "o", 1, SIZE_NONE, 0, |
417 |
cris_eight_bit_offset_branch_op}, |
418 |
|
419 |
{"bhs",
|
420 |
BRANCH_QUICK_OPCODE+CC_HS*0x1000,
|
421 |
0x0f00+(0xF-CC_HS)*0x1000, "o", 1, SIZE_NONE, 0, |
422 |
cris_eight_bit_offset_branch_op}, |
423 |
|
424 |
{"biap", BIAP_OPCODE, BIAP_Z_BITS, "pm r,R", 0, SIZE_NONE, |
425 |
cris_ver_v0_10, |
426 |
cris_biap_prefix}, |
427 |
|
428 |
{"ble",
|
429 |
BRANCH_QUICK_OPCODE+CC_LE*0x1000,
|
430 |
0x0f00+(0xF-CC_LE)*0x1000, "o", 1, SIZE_NONE, 0, |
431 |
cris_eight_bit_offset_branch_op}, |
432 |
|
433 |
{"blo",
|
434 |
BRANCH_QUICK_OPCODE+CC_LO*0x1000,
|
435 |
0x0f00+(0xF-CC_LO)*0x1000, "o", 1, SIZE_NONE, 0, |
436 |
cris_eight_bit_offset_branch_op}, |
437 |
|
438 |
{"bls",
|
439 |
BRANCH_QUICK_OPCODE+CC_LS*0x1000,
|
440 |
0x0f00+(0xF-CC_LS)*0x1000, "o", 1, SIZE_NONE, 0, |
441 |
cris_eight_bit_offset_branch_op}, |
442 |
|
443 |
{"blt",
|
444 |
BRANCH_QUICK_OPCODE+CC_LT*0x1000,
|
445 |
0x0f00+(0xF-CC_LT)*0x1000, "o", 1, SIZE_NONE, 0, |
446 |
cris_eight_bit_offset_branch_op}, |
447 |
|
448 |
{"bmi",
|
449 |
BRANCH_QUICK_OPCODE+CC_MI*0x1000,
|
450 |
0x0f00+(0xF-CC_MI)*0x1000, "o", 1, SIZE_NONE, 0, |
451 |
cris_eight_bit_offset_branch_op}, |
452 |
|
453 |
{"bmod", 0x0ab0, 0x0140, "s,R", 0, SIZE_FIX_32, |
454 |
cris_ver_sim_v0_10, |
455 |
cris_not_implemented_op}, |
456 |
|
457 |
{"bmod", 0x0ab0, 0x0140, "S,D", 0, SIZE_NONE, |
458 |
cris_ver_sim_v0_10, |
459 |
cris_not_implemented_op}, |
460 |
|
461 |
{"bmod", 0x0ab0, 0x0540, "S,R,r", 0, SIZE_NONE, |
462 |
cris_ver_sim_v0_10, |
463 |
cris_not_implemented_op}, |
464 |
|
465 |
{"bne",
|
466 |
BRANCH_QUICK_OPCODE+CC_NE*0x1000,
|
467 |
0x0f00+(0xF-CC_NE)*0x1000, "o", 1, SIZE_NONE, 0, |
468 |
cris_eight_bit_offset_branch_op}, |
469 |
|
470 |
{"bound", 0x05c0, 0x0A00, "m r,R", 0, SIZE_NONE, 0, |
471 |
cris_two_operand_bound_op}, |
472 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
473 |
{"bound", 0x09c0, 0x0200, "m s,R", 0, SIZE_FIELD, |
474 |
cris_ver_v0_10, |
475 |
cris_two_operand_bound_op}, |
476 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
477 |
{"bound", 0x0dcf, 0x0200, "m Y,R", 0, SIZE_FIELD, 0, |
478 |
cris_two_operand_bound_op}, |
479 |
{"bound", 0x09c0, 0x0200, "m S,D", 0, SIZE_NONE, |
480 |
cris_ver_v0_10, |
481 |
cris_two_operand_bound_op}, |
482 |
{"bound", 0x09c0, 0x0600, "m S,R,r", 0, SIZE_NONE, |
483 |
cris_ver_v0_10, |
484 |
cris_three_operand_bound_op}, |
485 |
|
486 |
{"bpl",
|
487 |
BRANCH_QUICK_OPCODE+CC_PL*0x1000,
|
488 |
0x0f00+(0xF-CC_PL)*0x1000, "o", 1, SIZE_NONE, 0, |
489 |
cris_eight_bit_offset_branch_op}, |
490 |
|
491 |
{"break", 0xe930, 0x16c0, "C", 0, SIZE_NONE, |
492 |
cris_ver_v3p, |
493 |
cris_break_op}, |
494 |
|
495 |
{"bsb",
|
496 |
BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
|
497 |
0x0f00+(0xF-CC_EXT)*0x1000, "o", 1, SIZE_NONE, |
498 |
cris_ver_v32p, |
499 |
cris_eight_bit_offset_branch_op}, |
500 |
|
501 |
{"bsr", 0xBEBF, 0x4140, "n", 0, SIZE_FIX_32, |
502 |
cris_ver_v32p, |
503 |
cris_none_reg_mode_jump_op}, |
504 |
|
505 |
{"bsrc", 0xBEFF, 0x4100, "n", 0, SIZE_FIX_32, |
506 |
cris_ver_v32p, |
507 |
cris_none_reg_mode_jump_op}, |
508 |
|
509 |
{"bstore", 0x0af0, 0x0100, "s,R", 0, SIZE_FIX_32, |
510 |
cris_ver_warning, |
511 |
cris_not_implemented_op}, |
512 |
|
513 |
{"bstore", 0x0af0, 0x0100, "S,D", 0, SIZE_NONE, |
514 |
cris_ver_warning, |
515 |
cris_not_implemented_op}, |
516 |
|
517 |
{"bstore", 0x0af0, 0x0500, "S,R,r", 0, SIZE_NONE, |
518 |
cris_ver_warning, |
519 |
cris_not_implemented_op}, |
520 |
|
521 |
{"btst", 0x04F0, 0x0B00, "r,R", 0, SIZE_NONE, 0, |
522 |
cris_btst_nop_op}, |
523 |
{"btstq", 0x0380, 0x0C60, "c,R", 0, SIZE_NONE, 0, |
524 |
cris_btst_nop_op}, |
525 |
|
526 |
{"bvc",
|
527 |
BRANCH_QUICK_OPCODE+CC_VC*0x1000,
|
528 |
0x0f00+(0xF-CC_VC)*0x1000, "o", 1, SIZE_NONE, 0, |
529 |
cris_eight_bit_offset_branch_op}, |
530 |
|
531 |
{"bvs",
|
532 |
BRANCH_QUICK_OPCODE+CC_VS*0x1000,
|
533 |
0x0f00+(0xF-CC_VS)*0x1000, "o", 1, SIZE_NONE, 0, |
534 |
cris_eight_bit_offset_branch_op}, |
535 |
|
536 |
{"clear", 0x0670, 0x3980, "M r", 0, SIZE_NONE, 0, |
537 |
cris_reg_mode_clear_op}, |
538 |
|
539 |
{"clear", 0x0A70, 0x3180, "M y", 0, SIZE_NONE, 0, |
540 |
cris_none_reg_mode_clear_test_op}, |
541 |
|
542 |
{"clear", 0x0A70, 0x3180, "M S", 0, SIZE_NONE, |
543 |
cris_ver_v0_10, |
544 |
cris_none_reg_mode_clear_test_op}, |
545 |
|
546 |
{"clearf", 0x05F0, 0x0A00, "f", 0, SIZE_NONE, 0, |
547 |
cris_clearf_di_op}, |
548 |
|
549 |
{"cmp", 0x06C0, 0x0900, "m r,R", 0, SIZE_NONE, 0, |
550 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
551 |
|
552 |
{"cmp", 0x0Ac0, 0x0100, "m s,R", 0, SIZE_FIELD, 0, |
553 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
554 |
|
555 |
{"cmp", 0x0Ac0, 0x0100, "m S,D", 0, SIZE_NONE, |
556 |
cris_ver_v0_10, |
557 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
558 |
|
559 |
{"cmpq", 0x02C0, 0x0D00, "i,R", 0, SIZE_NONE, 0, |
560 |
cris_quick_mode_and_cmp_move_or_op}, |
561 |
|
562 |
/* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
|
563 |
{"cmps", 0x08e0, 0x0300, "z s,R", 0, SIZE_FIELD, 0, |
564 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
565 |
|
566 |
{"cmps", 0x08e0, 0x0300, "z S,D", 0, SIZE_NONE, |
567 |
cris_ver_v0_10, |
568 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
569 |
|
570 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
571 |
{"cmpu", 0x08c0, 0x0320, "z s,R" , 0, SIZE_FIELD, 0, |
572 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
573 |
|
574 |
{"cmpu", 0x08c0, 0x0320, "z S,D", 0, SIZE_NONE, |
575 |
cris_ver_v0_10, |
576 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
577 |
|
578 |
{"di", 0x25F0, 0xDA0F, "", 0, SIZE_NONE, 0, |
579 |
cris_clearf_di_op}, |
580 |
|
581 |
{"dip", DIP_OPCODE, DIP_Z_BITS, "ps", 0, SIZE_FIX_32, |
582 |
cris_ver_v0_10, |
583 |
cris_dip_prefix}, |
584 |
|
585 |
{"div", 0x0980, 0x0640, "m R,r", 0, SIZE_FIELD, 0, |
586 |
cris_not_implemented_op}, |
587 |
|
588 |
{"dstep", 0x06f0, 0x0900, "r,R", 0, SIZE_NONE, 0, |
589 |
cris_dstep_logshift_mstep_neg_not_op}, |
590 |
|
591 |
{"ei", 0x25B0, 0xDA4F, "", 0, SIZE_NONE, 0, |
592 |
cris_ax_ei_setf_op}, |
593 |
|
594 |
{"fidxd", 0x0ab0, 0xf540, "[r]", 0, SIZE_NONE, |
595 |
cris_ver_v32p, |
596 |
cris_not_implemented_op}, |
597 |
|
598 |
{"fidxi", 0x0d30, 0xF2C0, "[r]", 0, SIZE_NONE, |
599 |
cris_ver_v32p, |
600 |
cris_not_implemented_op}, |
601 |
|
602 |
{"ftagd", 0x1AB0, 0xE540, "[r]", 0, SIZE_NONE, |
603 |
cris_ver_v32p, |
604 |
cris_not_implemented_op}, |
605 |
|
606 |
{"ftagi", 0x1D30, 0xE2C0, "[r]", 0, SIZE_NONE, |
607 |
cris_ver_v32p, |
608 |
cris_not_implemented_op}, |
609 |
|
610 |
{"halt", 0xF930, 0x06CF, "", 0, SIZE_NONE, |
611 |
cris_ver_v32p, |
612 |
cris_not_implemented_op}, |
613 |
|
614 |
{"jas", 0x09B0, 0x0640, "r,P", 0, SIZE_NONE, |
615 |
cris_ver_v32p, |
616 |
cris_reg_mode_jump_op}, |
617 |
|
618 |
{"jas", 0x0DBF, 0x0240, "N,P", 0, SIZE_FIX_32, |
619 |
cris_ver_v32p, |
620 |
cris_reg_mode_jump_op}, |
621 |
|
622 |
{"jasc", 0x0B30, 0x04C0, "r,P", 0, SIZE_NONE, |
623 |
cris_ver_v32p, |
624 |
cris_reg_mode_jump_op}, |
625 |
|
626 |
{"jasc", 0x0F3F, 0x00C0, "N,P", 0, SIZE_FIX_32, |
627 |
cris_ver_v32p, |
628 |
cris_reg_mode_jump_op}, |
629 |
|
630 |
{"jbrc", 0x69b0, 0x9640, "r", 0, SIZE_NONE, |
631 |
cris_ver_v8_10, |
632 |
cris_reg_mode_jump_op}, |
633 |
|
634 |
{"jbrc", 0x6930, 0x92c0, "s", 0, SIZE_FIX_32, |
635 |
cris_ver_v8_10, |
636 |
cris_none_reg_mode_jump_op}, |
637 |
|
638 |
{"jbrc", 0x6930, 0x92c0, "S", 0, SIZE_NONE, |
639 |
cris_ver_v8_10, |
640 |
cris_none_reg_mode_jump_op}, |
641 |
|
642 |
{"jir", 0xA9b0, 0x5640, "r", 0, SIZE_NONE, |
643 |
cris_ver_v8_10, |
644 |
cris_reg_mode_jump_op}, |
645 |
|
646 |
{"jir", 0xA930, 0x52c0, "s", 0, SIZE_FIX_32, |
647 |
cris_ver_v8_10, |
648 |
cris_none_reg_mode_jump_op}, |
649 |
|
650 |
{"jir", 0xA930, 0x52c0, "S", 0, SIZE_NONE, |
651 |
cris_ver_v8_10, |
652 |
cris_none_reg_mode_jump_op}, |
653 |
|
654 |
{"jirc", 0x29b0, 0xd640, "r", 0, SIZE_NONE, |
655 |
cris_ver_v8_10, |
656 |
cris_reg_mode_jump_op}, |
657 |
|
658 |
{"jirc", 0x2930, 0xd2c0, "s", 0, SIZE_FIX_32, |
659 |
cris_ver_v8_10, |
660 |
cris_none_reg_mode_jump_op}, |
661 |
|
662 |
{"jirc", 0x2930, 0xd2c0, "S", 0, SIZE_NONE, |
663 |
cris_ver_v8_10, |
664 |
cris_none_reg_mode_jump_op}, |
665 |
|
666 |
{"jsr", 0xB9b0, 0x4640, "r", 0, SIZE_NONE, 0, |
667 |
cris_reg_mode_jump_op}, |
668 |
|
669 |
{"jsr", 0xB930, 0x42c0, "s", 0, SIZE_FIX_32, |
670 |
cris_ver_v0_10, |
671 |
cris_none_reg_mode_jump_op}, |
672 |
|
673 |
{"jsr", 0xBDBF, 0x4240, "N", 0, SIZE_FIX_32, |
674 |
cris_ver_v32p, |
675 |
cris_none_reg_mode_jump_op}, |
676 |
|
677 |
{"jsr", 0xB930, 0x42c0, "S", 0, SIZE_NONE, |
678 |
cris_ver_v0_10, |
679 |
cris_none_reg_mode_jump_op}, |
680 |
|
681 |
{"jsrc", 0x39b0, 0xc640, "r", 0, SIZE_NONE, |
682 |
cris_ver_v8_10, |
683 |
cris_reg_mode_jump_op}, |
684 |
|
685 |
{"jsrc", 0x3930, 0xc2c0, "s", 0, SIZE_FIX_32, |
686 |
cris_ver_v8_10, |
687 |
cris_none_reg_mode_jump_op}, |
688 |
|
689 |
{"jsrc", 0x3930, 0xc2c0, "S", 0, SIZE_NONE, |
690 |
cris_ver_v8_10, |
691 |
cris_none_reg_mode_jump_op}, |
692 |
|
693 |
{"jsrc", 0xBB30, 0x44C0, "r", 0, SIZE_NONE, |
694 |
cris_ver_v32p, |
695 |
cris_reg_mode_jump_op}, |
696 |
|
697 |
{"jsrc", 0xBF3F, 0x40C0, "N", 0, SIZE_FIX_32, |
698 |
cris_ver_v32p, |
699 |
cris_reg_mode_jump_op}, |
700 |
|
701 |
{"jump", 0x09b0, 0xF640, "r", 0, SIZE_NONE, 0, |
702 |
cris_reg_mode_jump_op}, |
703 |
|
704 |
{"jump",
|
705 |
JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "s", 0, SIZE_FIX_32, |
706 |
cris_ver_v0_10, |
707 |
cris_none_reg_mode_jump_op}, |
708 |
|
709 |
{"jump",
|
710 |
JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS, "S", 0, SIZE_NONE, |
711 |
cris_ver_v0_10, |
712 |
cris_none_reg_mode_jump_op}, |
713 |
|
714 |
{"jump", 0x09F0, 0x060F, "P", 0, SIZE_NONE, |
715 |
cris_ver_v32p, |
716 |
cris_none_reg_mode_jump_op}, |
717 |
|
718 |
{"jump",
|
719 |
JUMP_PC_INCR_OPCODE_V32, |
720 |
(0xffff & ~JUMP_PC_INCR_OPCODE_V32), "N", 0, SIZE_FIX_32, |
721 |
cris_ver_v32p, |
722 |
cris_none_reg_mode_jump_op}, |
723 |
|
724 |
{"jmpu", 0x8930, 0x72c0, "s", 0, SIZE_FIX_32, |
725 |
cris_ver_v10, |
726 |
cris_none_reg_mode_jump_op}, |
727 |
|
728 |
{"jmpu", 0x8930, 0x72c0, "S", 0, SIZE_NONE, |
729 |
cris_ver_v10, |
730 |
cris_none_reg_mode_jump_op}, |
731 |
|
732 |
{"lapc", 0x0970, 0x0680, "U,R", 0, SIZE_NONE, |
733 |
cris_ver_v32p, |
734 |
cris_not_implemented_op}, |
735 |
|
736 |
{"lapc", 0x0D7F, 0x0280, "dn,R", 0, SIZE_FIX_32, |
737 |
cris_ver_v32p, |
738 |
cris_not_implemented_op}, |
739 |
|
740 |
{"lapcq", 0x0970, 0x0680, "u,R", 0, SIZE_NONE, |
741 |
cris_ver_v32p, |
742 |
cris_addi_op}, |
743 |
|
744 |
{"lsl", 0x04C0, 0x0B00, "m r,R", 0, SIZE_NONE, 0, |
745 |
cris_dstep_logshift_mstep_neg_not_op}, |
746 |
|
747 |
{"lslq", 0x03c0, 0x0C20, "c,R", 0, SIZE_NONE, 0, |
748 |
cris_dstep_logshift_mstep_neg_not_op}, |
749 |
|
750 |
{"lsr", 0x07C0, 0x0800, "m r,R", 0, SIZE_NONE, 0, |
751 |
cris_dstep_logshift_mstep_neg_not_op}, |
752 |
|
753 |
{"lsrq", 0x03e0, 0x0C00, "c,R", 0, SIZE_NONE, 0, |
754 |
cris_dstep_logshift_mstep_neg_not_op}, |
755 |
|
756 |
{"lz", 0x0730, 0x08C0, "r,R", 0, SIZE_NONE, |
757 |
cris_ver_v3p, |
758 |
cris_not_implemented_op}, |
759 |
|
760 |
{"mcp", 0x07f0, 0x0800, "P,r", 0, SIZE_NONE, |
761 |
cris_ver_v32p, |
762 |
cris_not_implemented_op}, |
763 |
|
764 |
{"move", 0x0640, 0x0980, "m r,R", 0, SIZE_NONE, 0, |
765 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
766 |
|
767 |
{"move", 0x0A40, 0x0180, "m s,R", 0, SIZE_FIELD, 0, |
768 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
769 |
|
770 |
{"move", 0x0A40, 0x0180, "m S,D", 0, SIZE_NONE, |
771 |
cris_ver_v0_10, |
772 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
773 |
|
774 |
{"move", 0x0630, 0x09c0, "r,P", 0, SIZE_NONE, 0, |
775 |
cris_move_to_preg_op}, |
776 |
|
777 |
{"move", 0x0670, 0x0980, "P,r", 0, SIZE_NONE, 0, |
778 |
cris_reg_mode_move_from_preg_op}, |
779 |
|
780 |
{"move", 0x0BC0, 0x0000, "m R,y", 0, SIZE_FIELD, 0, |
781 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
782 |
|
783 |
{"move", 0x0BC0, 0x0000, "m D,S", 0, SIZE_NONE, |
784 |
cris_ver_v0_10, |
785 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
786 |
|
787 |
{"move",
|
788 |
MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS, |
789 |
"s,P", 0, SIZE_SPEC_REG, 0, |
790 |
cris_move_to_preg_op}, |
791 |
|
792 |
{"move", 0x0A30, 0x01c0, "S,P", 0, SIZE_NONE, |
793 |
cris_ver_v0_10, |
794 |
cris_move_to_preg_op}, |
795 |
|
796 |
{"move", 0x0A70, 0x0180, "P,y", 0, SIZE_SPEC_REG, 0, |
797 |
cris_none_reg_mode_move_from_preg_op}, |
798 |
|
799 |
{"move", 0x0A70, 0x0180, "P,S", 0, SIZE_NONE, |
800 |
cris_ver_v0_10, |
801 |
cris_none_reg_mode_move_from_preg_op}, |
802 |
|
803 |
{"move", 0x0B70, 0x0480, "r,T", 0, SIZE_NONE, |
804 |
cris_ver_v32p, |
805 |
cris_not_implemented_op}, |
806 |
|
807 |
{"move", 0x0F70, 0x0080, "T,r", 0, SIZE_NONE, |
808 |
cris_ver_v32p, |
809 |
cris_not_implemented_op}, |
810 |
|
811 |
{"movem", 0x0BF0, 0x0000, "R,y", 0, SIZE_FIX_32, 0, |
812 |
cris_move_reg_to_mem_movem_op}, |
813 |
|
814 |
{"movem", 0x0BF0, 0x0000, "D,S", 0, SIZE_NONE, |
815 |
cris_ver_v0_10, |
816 |
cris_move_reg_to_mem_movem_op}, |
817 |
|
818 |
{"movem", 0x0BB0, 0x0040, "s,R", 0, SIZE_FIX_32, 0, |
819 |
cris_move_mem_to_reg_movem_op}, |
820 |
|
821 |
{"movem", 0x0BB0, 0x0040, "S,D", 0, SIZE_NONE, |
822 |
cris_ver_v0_10, |
823 |
cris_move_mem_to_reg_movem_op}, |
824 |
|
825 |
{"moveq", 0x0240, 0x0D80, "i,R", 0, SIZE_NONE, 0, |
826 |
cris_quick_mode_and_cmp_move_or_op}, |
827 |
|
828 |
{"movs", 0x0460, 0x0B80, "z r,R", 0, SIZE_NONE, 0, |
829 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
830 |
|
831 |
/* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
|
832 |
{"movs", 0x0860, 0x0380, "z s,R", 0, SIZE_FIELD, 0, |
833 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
834 |
|
835 |
{"movs", 0x0860, 0x0380, "z S,D", 0, SIZE_NONE, |
836 |
cris_ver_v0_10, |
837 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
838 |
|
839 |
{"movu", 0x0440, 0x0Ba0, "z r,R", 0, SIZE_NONE, 0, |
840 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
841 |
|
842 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
843 |
{"movu", 0x0840, 0x03a0, "z s,R", 0, SIZE_FIELD, 0, |
844 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
845 |
|
846 |
{"movu", 0x0840, 0x03a0, "z S,D", 0, SIZE_NONE, |
847 |
cris_ver_v0_10, |
848 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
849 |
|
850 |
{"mstep", 0x07f0, 0x0800, "r,R", 0, SIZE_NONE, |
851 |
cris_ver_v0_10, |
852 |
cris_dstep_logshift_mstep_neg_not_op}, |
853 |
|
854 |
{"muls", 0x0d00, 0x02c0, "m r,R", 0, SIZE_NONE, |
855 |
cris_ver_v10p, |
856 |
cris_muls_op}, |
857 |
|
858 |
{"mulu", 0x0900, 0x06c0, "m r,R", 0, SIZE_NONE, |
859 |
cris_ver_v10p, |
860 |
cris_mulu_op}, |
861 |
|
862 |
{"neg", 0x0580, 0x0A40, "m r,R", 0, SIZE_NONE, 0, |
863 |
cris_dstep_logshift_mstep_neg_not_op}, |
864 |
|
865 |
{"nop", NOP_OPCODE, NOP_Z_BITS, "", 0, SIZE_NONE, |
866 |
cris_ver_v0_10, |
867 |
cris_btst_nop_op}, |
868 |
|
869 |
{"nop", NOP_OPCODE_V32, NOP_Z_BITS_V32, "", 0, SIZE_NONE, |
870 |
cris_ver_v32p, |
871 |
cris_btst_nop_op}, |
872 |
|
873 |
{"not", 0x8770, 0x7880, "r", 0, SIZE_NONE, 0, |
874 |
cris_dstep_logshift_mstep_neg_not_op}, |
875 |
|
876 |
{"or", 0x0740, 0x0880, "m r,R", 0, SIZE_NONE, 0, |
877 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
878 |
|
879 |
{"or", 0x0B40, 0x0080, "m s,R", 0, SIZE_FIELD, 0, |
880 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
881 |
|
882 |
{"or", 0x0B40, 0x0080, "m S,D", 0, SIZE_NONE, |
883 |
cris_ver_v0_10, |
884 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
885 |
|
886 |
{"or", 0x0B40, 0x0480, "m S,R,r", 0, SIZE_NONE, |
887 |
cris_ver_v0_10, |
888 |
cris_three_operand_add_sub_cmp_and_or_op}, |
889 |
|
890 |
{"orq", 0x0340, 0x0C80, "i,R", 0, SIZE_NONE, 0, |
891 |
cris_quick_mode_and_cmp_move_or_op}, |
892 |
|
893 |
{"pop", 0x0E6E, 0x0191, "!R", 0, SIZE_NONE, |
894 |
cris_ver_v0_10, |
895 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
896 |
|
897 |
{"pop", 0x0e3e, 0x01c1, "!P", 0, SIZE_NONE, |
898 |
cris_ver_v0_10, |
899 |
cris_none_reg_mode_move_from_preg_op}, |
900 |
|
901 |
{"push", 0x0FEE, 0x0011, "BR", 0, SIZE_NONE, |
902 |
cris_ver_v0_10, |
903 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
904 |
|
905 |
{"push", 0x0E7E, 0x0181, "BP", 0, SIZE_NONE, |
906 |
cris_ver_v0_10, |
907 |
cris_move_to_preg_op}, |
908 |
|
909 |
{"rbf", 0x3b30, 0xc0c0, "y", 0, SIZE_NONE, |
910 |
cris_ver_v10, |
911 |
cris_not_implemented_op}, |
912 |
|
913 |
{"rbf", 0x3b30, 0xc0c0, "S", 0, SIZE_NONE, |
914 |
cris_ver_v10, |
915 |
cris_not_implemented_op}, |
916 |
|
917 |
{"rfe", 0x2930, 0xD6CF, "", 0, SIZE_NONE, |
918 |
cris_ver_v32p, |
919 |
cris_not_implemented_op}, |
920 |
|
921 |
{"rfg", 0x4930, 0xB6CF, "", 0, SIZE_NONE, |
922 |
cris_ver_v32p, |
923 |
cris_not_implemented_op}, |
924 |
|
925 |
{"rfn", 0x5930, 0xA6CF, "", 0, SIZE_NONE, |
926 |
cris_ver_v32p, |
927 |
cris_not_implemented_op}, |
928 |
|
929 |
{"ret", 0xB67F, 0x4980, "", 1, SIZE_NONE, |
930 |
cris_ver_v0_10, |
931 |
cris_reg_mode_move_from_preg_op}, |
932 |
|
933 |
{"ret", 0xB9F0, 0x460F, "", 1, SIZE_NONE, |
934 |
cris_ver_v32p, |
935 |
cris_reg_mode_move_from_preg_op}, |
936 |
|
937 |
{"retb", 0xe67f, 0x1980, "", 1, SIZE_NONE, |
938 |
cris_ver_v0_10, |
939 |
cris_reg_mode_move_from_preg_op}, |
940 |
|
941 |
{"rete", 0xA9F0, 0x560F, "", 1, SIZE_NONE, |
942 |
cris_ver_v32p, |
943 |
cris_reg_mode_move_from_preg_op}, |
944 |
|
945 |
{"reti", 0xA67F, 0x5980, "", 1, SIZE_NONE, |
946 |
cris_ver_v0_10, |
947 |
cris_reg_mode_move_from_preg_op}, |
948 |
|
949 |
{"retn", 0xC9F0, 0x360F, "", 1, SIZE_NONE, |
950 |
cris_ver_v32p, |
951 |
cris_reg_mode_move_from_preg_op}, |
952 |
|
953 |
{"sbfs", 0x3b70, 0xc080, "y", 0, SIZE_NONE, |
954 |
cris_ver_v10, |
955 |
cris_not_implemented_op}, |
956 |
|
957 |
{"sbfs", 0x3b70, 0xc080, "S", 0, SIZE_NONE, |
958 |
cris_ver_v10, |
959 |
cris_not_implemented_op}, |
960 |
|
961 |
{"sa",
|
962 |
0x0530+CC_A*0x1000, |
963 |
0x0AC0+(0xf-CC_A)*0x1000, "r", 0, SIZE_NONE, 0, |
964 |
cris_scc_op}, |
965 |
|
966 |
{"ssb",
|
967 |
0x0530+CC_EXT*0x1000, |
968 |
0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE, |
969 |
cris_ver_v32p, |
970 |
cris_scc_op}, |
971 |
|
972 |
{"scc",
|
973 |
0x0530+CC_CC*0x1000, |
974 |
0x0AC0+(0xf-CC_CC)*0x1000, "r", 0, SIZE_NONE, 0, |
975 |
cris_scc_op}, |
976 |
|
977 |
{"scs",
|
978 |
0x0530+CC_CS*0x1000, |
979 |
0x0AC0+(0xf-CC_CS)*0x1000, "r", 0, SIZE_NONE, 0, |
980 |
cris_scc_op}, |
981 |
|
982 |
{"seq",
|
983 |
0x0530+CC_EQ*0x1000, |
984 |
0x0AC0+(0xf-CC_EQ)*0x1000, "r", 0, SIZE_NONE, 0, |
985 |
cris_scc_op}, |
986 |
|
987 |
{"setf", 0x05b0, 0x0A40, "f", 0, SIZE_NONE, 0, |
988 |
cris_ax_ei_setf_op}, |
989 |
|
990 |
{"sfe", 0x3930, 0xC6CF, "", 0, SIZE_NONE, |
991 |
cris_ver_v32p, |
992 |
cris_not_implemented_op}, |
993 |
|
994 |
/* Need to have "swf" in front of "sext" so it is the one displayed in
|
995 |
disassembly. */
|
996 |
{"swf",
|
997 |
0x0530+CC_EXT*0x1000, |
998 |
0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE, |
999 |
cris_ver_v10, |
1000 |
cris_scc_op}, |
1001 |
|
1002 |
{"sext",
|
1003 |
0x0530+CC_EXT*0x1000, |
1004 |
0x0AC0+(0xf-CC_EXT)*0x1000, "r", 0, SIZE_NONE, |
1005 |
cris_ver_v0_3, |
1006 |
cris_scc_op}, |
1007 |
|
1008 |
{"sge",
|
1009 |
0x0530+CC_GE*0x1000, |
1010 |
0x0AC0+(0xf-CC_GE)*0x1000, "r", 0, SIZE_NONE, 0, |
1011 |
cris_scc_op}, |
1012 |
|
1013 |
{"sgt",
|
1014 |
0x0530+CC_GT*0x1000, |
1015 |
0x0AC0+(0xf-CC_GT)*0x1000, "r", 0, SIZE_NONE, 0, |
1016 |
cris_scc_op}, |
1017 |
|
1018 |
{"shi",
|
1019 |
0x0530+CC_HI*0x1000, |
1020 |
0x0AC0+(0xf-CC_HI)*0x1000, "r", 0, SIZE_NONE, 0, |
1021 |
cris_scc_op}, |
1022 |
|
1023 |
{"shs",
|
1024 |
0x0530+CC_HS*0x1000, |
1025 |
0x0AC0+(0xf-CC_HS)*0x1000, "r", 0, SIZE_NONE, 0, |
1026 |
cris_scc_op}, |
1027 |
|
1028 |
{"sle",
|
1029 |
0x0530+CC_LE*0x1000, |
1030 |
0x0AC0+(0xf-CC_LE)*0x1000, "r", 0, SIZE_NONE, 0, |
1031 |
cris_scc_op}, |
1032 |
|
1033 |
{"slo",
|
1034 |
0x0530+CC_LO*0x1000, |
1035 |
0x0AC0+(0xf-CC_LO)*0x1000, "r", 0, SIZE_NONE, 0, |
1036 |
cris_scc_op}, |
1037 |
|
1038 |
{"sls",
|
1039 |
0x0530+CC_LS*0x1000, |
1040 |
0x0AC0+(0xf-CC_LS)*0x1000, "r", 0, SIZE_NONE, 0, |
1041 |
cris_scc_op}, |
1042 |
|
1043 |
{"slt",
|
1044 |
0x0530+CC_LT*0x1000, |
1045 |
0x0AC0+(0xf-CC_LT)*0x1000, "r", 0, SIZE_NONE, 0, |
1046 |
cris_scc_op}, |
1047 |
|
1048 |
{"smi",
|
1049 |
0x0530+CC_MI*0x1000, |
1050 |
0x0AC0+(0xf-CC_MI)*0x1000, "r", 0, SIZE_NONE, 0, |
1051 |
cris_scc_op}, |
1052 |
|
1053 |
{"sne",
|
1054 |
0x0530+CC_NE*0x1000, |
1055 |
0x0AC0+(0xf-CC_NE)*0x1000, "r", 0, SIZE_NONE, 0, |
1056 |
cris_scc_op}, |
1057 |
|
1058 |
{"spl",
|
1059 |
0x0530+CC_PL*0x1000, |
1060 |
0x0AC0+(0xf-CC_PL)*0x1000, "r", 0, SIZE_NONE, 0, |
1061 |
cris_scc_op}, |
1062 |
|
1063 |
{"sub", 0x0680, 0x0940, "m r,R", 0, SIZE_NONE, 0, |
1064 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
1065 |
|
1066 |
{"sub", 0x0a80, 0x0140, "m s,R", 0, SIZE_FIELD, 0, |
1067 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1068 |
|
1069 |
{"sub", 0x0a80, 0x0140, "m S,D", 0, SIZE_NONE, |
1070 |
cris_ver_v0_10, |
1071 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1072 |
|
1073 |
{"sub", 0x0a80, 0x0540, "m S,R,r", 0, SIZE_NONE, |
1074 |
cris_ver_v0_10, |
1075 |
cris_three_operand_add_sub_cmp_and_or_op}, |
1076 |
|
1077 |
{"subq", 0x0280, 0x0d40, "I,R", 0, SIZE_NONE, 0, |
1078 |
cris_quick_mode_add_sub_op}, |
1079 |
|
1080 |
{"subs", 0x04a0, 0x0b40, "z r,R", 0, SIZE_NONE, 0, |
1081 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
1082 |
|
1083 |
/* FIXME: SIZE_FIELD_SIGNED and all necessary changes. */
|
1084 |
{"subs", 0x08a0, 0x0340, "z s,R", 0, SIZE_FIELD, 0, |
1085 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1086 |
|
1087 |
{"subs", 0x08a0, 0x0340, "z S,D", 0, SIZE_NONE, |
1088 |
cris_ver_v0_10, |
1089 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1090 |
|
1091 |
{"subs", 0x08a0, 0x0740, "z S,R,r", 0, SIZE_NONE, |
1092 |
cris_ver_v0_10, |
1093 |
cris_three_operand_add_sub_cmp_and_or_op}, |
1094 |
|
1095 |
{"subu", 0x0480, 0x0b60, "z r,R", 0, SIZE_NONE, 0, |
1096 |
cris_reg_mode_add_sub_cmp_and_or_move_op}, |
1097 |
|
1098 |
/* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes. */
|
1099 |
{"subu", 0x0880, 0x0360, "z s,R", 0, SIZE_FIELD, 0, |
1100 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1101 |
|
1102 |
{"subu", 0x0880, 0x0360, "z S,D", 0, SIZE_NONE, |
1103 |
cris_ver_v0_10, |
1104 |
cris_none_reg_mode_add_sub_cmp_and_or_move_op}, |
1105 |
|
1106 |
{"subu", 0x0880, 0x0760, "z S,R,r", 0, SIZE_NONE, |
1107 |
cris_ver_v0_10, |
1108 |
cris_three_operand_add_sub_cmp_and_or_op}, |
1109 |
|
1110 |
{"svc",
|
1111 |
0x0530+CC_VC*0x1000, |
1112 |
0x0AC0+(0xf-CC_VC)*0x1000, "r", 0, SIZE_NONE, 0, |
1113 |
cris_scc_op}, |
1114 |
|
1115 |
{"svs",
|
1116 |
0x0530+CC_VS*0x1000, |
1117 |
0x0AC0+(0xf-CC_VS)*0x1000, "r", 0, SIZE_NONE, 0, |
1118 |
cris_scc_op}, |
1119 |
|
1120 |
/* The insn "swapn" is the same as "not" and will be disassembled as
|
1121 |
such, but the swap* family of mnmonics are generally v8-and-higher
|
1122 |
only, so count it in. */
|
1123 |
{"swapn", 0x8770, 0x7880, "r", 0, SIZE_NONE, |
1124 |
cris_ver_v8p, |
1125 |
cris_not_implemented_op}, |
1126 |
|
1127 |
{"swapw", 0x4770, 0xb880, "r", 0, SIZE_NONE, |
1128 |
cris_ver_v8p, |
1129 |
cris_not_implemented_op}, |
1130 |
|
1131 |
{"swapnw", 0xc770, 0x3880, "r", 0, SIZE_NONE, |
1132 |
cris_ver_v8p, |
1133 |
cris_not_implemented_op}, |
1134 |
|
1135 |
{"swapb", 0x2770, 0xd880, "r", 0, SIZE_NONE, |
1136 |
cris_ver_v8p, |
1137 |
cris_not_implemented_op}, |
1138 |
|
1139 |
{"swapnb", 0xA770, 0x5880, "r", 0, SIZE_NONE, |
1140 |
cris_ver_v8p, |
1141 |
cris_not_implemented_op}, |
1142 |
|
1143 |
{"swapwb", 0x6770, 0x9880, "r", 0, SIZE_NONE, |
1144 |
cris_ver_v8p, |
1145 |
cris_not_implemented_op}, |
1146 |
|
1147 |
{"swapnwb", 0xE770, 0x1880, "r", 0, SIZE_NONE, |
1148 |
cris_ver_v8p, |
1149 |
cris_not_implemented_op}, |
1150 |
|
1151 |
{"swapr", 0x1770, 0xe880, "r", 0, SIZE_NONE, |
1152 |
cris_ver_v8p, |
1153 |
cris_not_implemented_op}, |
1154 |
|
1155 |
{"swapnr", 0x9770, 0x6880, "r", 0, SIZE_NONE, |
1156 |
cris_ver_v8p, |
1157 |
cris_not_implemented_op}, |
1158 |
|
1159 |
{"swapwr", 0x5770, 0xa880, "r", 0, SIZE_NONE, |
1160 |
cris_ver_v8p, |
1161 |
cris_not_implemented_op}, |
1162 |
|
1163 |
{"swapnwr", 0xd770, 0x2880, "r", 0, SIZE_NONE, |
1164 |
cris_ver_v8p, |
1165 |
cris_not_implemented_op}, |
1166 |
|
1167 |
{"swapbr", 0x3770, 0xc880, "r", 0, SIZE_NONE, |
1168 |
cris_ver_v8p, |
1169 |
cris_not_implemented_op}, |
1170 |
|
1171 |
{"swapnbr", 0xb770, 0x4880, "r", 0, SIZE_NONE, |
1172 |
cris_ver_v8p, |
1173 |
cris_not_implemented_op}, |
1174 |
|
1175 |
{"swapwbr", 0x7770, 0x8880, "r", 0, SIZE_NONE, |
1176 |
cris_ver_v8p, |
1177 |
cris_not_implemented_op}, |
1178 |
|
1179 |
{"swapnwbr", 0xf770, 0x0880, "r", 0, SIZE_NONE, |
1180 |
cris_ver_v8p, |
1181 |
cris_not_implemented_op}, |
1182 |
|
1183 |
{"test", 0x0640, 0x0980, "m D", 0, SIZE_NONE, |
1184 |
cris_ver_v0_10, |
1185 |
cris_reg_mode_test_op}, |
1186 |
|
1187 |
{"test", 0x0b80, 0xf040, "m y", 0, SIZE_FIELD, 0, |
1188 |
cris_none_reg_mode_clear_test_op}, |
1189 |
|
1190 |
{"test", 0x0b80, 0xf040, "m S", 0, SIZE_NONE, |
1191 |
cris_ver_v0_10, |
1192 |
cris_none_reg_mode_clear_test_op}, |
1193 |
|
1194 |
{"xor", 0x07B0, 0x0840, "r,R", 0, SIZE_NONE, 0, |
1195 |
cris_xor_op}, |
1196 |
|
1197 |
{NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op} |
1198 |
}; |
1199 |
|
1200 |
/* Condition-names, indexed by the CC_* numbers as found in cris.h. */
|
1201 |
const char * const |
1202 |
cris_cc_strings[] = |
1203 |
{ |
1204 |
"hs",
|
1205 |
"lo",
|
1206 |
"ne",
|
1207 |
"eq",
|
1208 |
"vc",
|
1209 |
"vs",
|
1210 |
"pl",
|
1211 |
"mi",
|
1212 |
"ls",
|
1213 |
"hi",
|
1214 |
"ge",
|
1215 |
"lt",
|
1216 |
"gt",
|
1217 |
"le",
|
1218 |
"a",
|
1219 |
/* This is a placeholder. In v0, this would be "ext". In v32, this
|
1220 |
is "sb". See cris_conds15. */
|
1221 |
"wf"
|
1222 |
}; |
1223 |
|
1224 |
/* Different names and semantics for condition 1111 (0xf). */
|
1225 |
const struct cris_cond15 cris_cond15s[] = |
1226 |
{ |
1227 |
/* FIXME: In what version did condition "ext" disappear? */
|
1228 |
{"ext", cris_ver_v0_3},
|
1229 |
{"wf", cris_ver_v10},
|
1230 |
{"sb", cris_ver_v32p},
|
1231 |
{NULL, 0} |
1232 |
}; |
1233 |
|
1234 |
|
1235 |
/*
|
1236 |
* Local variables:
|
1237 |
* eval: (c-set-style "gnu")
|
1238 |
* indent-tabs-mode: t
|
1239 |
* End:
|
1240 |
*/
|
1241 |
|
1242 |
|
1243 |
/* No instruction will be disassembled longer than this. In theory, and
|
1244 |
in silicon, address prefixes can be cascaded. In practice, cascading
|
1245 |
is not used by GCC, and not supported by the assembler. */
|
1246 |
#ifndef MAX_BYTES_PER_CRIS_INSN
|
1247 |
#define MAX_BYTES_PER_CRIS_INSN 8 |
1248 |
#endif
|
1249 |
|
1250 |
/* Whether or not to decode prefixes, folding it into the following
|
1251 |
instruction. FIXME: Make this optional later. */
|
1252 |
#ifndef PARSE_PREFIX
|
1253 |
#define PARSE_PREFIX 1 |
1254 |
#endif
|
1255 |
|
1256 |
/* Sometimes we prefix all registers with this character. */
|
1257 |
#define REGISTER_PREFIX_CHAR '$' |
1258 |
|
1259 |
/* Whether or not to trace the following sequence:
|
1260 |
sub* X,r%d
|
1261 |
bound* Y,r%d
|
1262 |
adds.w [pc+r%d.w],pc
|
1263 |
|
1264 |
This is the assembly form of a switch-statement in C.
|
1265 |
The "sub is optional. If there is none, then X will be zero.
|
1266 |
X is the value of the first case,
|
1267 |
Y is the number of cases (including default).
|
1268 |
|
1269 |
This results in case offsets printed on the form:
|
1270 |
case N: -> case_address
|
1271 |
where N is an estimation on the corresponding 'case' operand in C,
|
1272 |
and case_address is where execution of that case continues after the
|
1273 |
sequence presented above.
|
1274 |
|
1275 |
The old style of output was to print the offsets as instructions,
|
1276 |
which made it hard to follow "case"-constructs in the disassembly,
|
1277 |
and caused a lot of annoying warnings about undefined instructions.
|
1278 |
|
1279 |
FIXME: Make this optional later. */
|
1280 |
#ifndef TRACE_CASE
|
1281 |
#define TRACE_CASE (disdata->trace_case)
|
1282 |
#endif
|
1283 |
|
1284 |
enum cris_disass_family
|
1285 |
{ cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 }; |
1286 |
|
1287 |
/* Stored in the disasm_info->private_data member. */
|
1288 |
struct cris_disasm_data
|
1289 |
{ |
1290 |
/* Whether to print something less confusing if we find something
|
1291 |
matching a switch-construct. */
|
1292 |
bfd_boolean trace_case; |
1293 |
|
1294 |
/* Whether this code is flagged as crisv32. FIXME: Should be an enum
|
1295 |
that includes "compatible". */
|
1296 |
enum cris_disass_family distype;
|
1297 |
}; |
1298 |
|
1299 |
/* Value of first element in switch. */
|
1300 |
static long case_offset = 0; |
1301 |
|
1302 |
/* How many more case-offsets to print. */
|
1303 |
static long case_offset_counter = 0; |
1304 |
|
1305 |
/* Number of case offsets. */
|
1306 |
static long no_of_case_offsets = 0; |
1307 |
|
1308 |
/* Candidate for next case_offset. */
|
1309 |
static long last_immediate = 0; |
1310 |
|
1311 |
static int cris_constraint |
1312 |
(const char *, unsigned, unsigned, struct cris_disasm_data *); |
1313 |
|
1314 |
/* Parse disassembler options and store state in info. FIXME: For the
|
1315 |
time being, we abuse static variables. */
|
1316 |
|
1317 |
static bfd_boolean
|
1318 |
cris_parse_disassembler_options (disassemble_info *info, |
1319 |
enum cris_disass_family distype)
|
1320 |
{ |
1321 |
struct cris_disasm_data *disdata;
|
1322 |
|
1323 |
info->private_data = calloc (1, sizeof (struct cris_disasm_data)); |
1324 |
disdata = (struct cris_disasm_data *) info->private_data;
|
1325 |
if (disdata == NULL) |
1326 |
return FALSE;
|
1327 |
|
1328 |
/* Default true. */
|
1329 |
disdata->trace_case |
1330 |
= (info->disassembler_options == NULL
|
1331 |
|| (strcmp (info->disassembler_options, "nocase") != 0)); |
1332 |
|
1333 |
disdata->distype = distype; |
1334 |
return TRUE;
|
1335 |
} |
1336 |
|
1337 |
static const struct cris_spec_reg * |
1338 |
spec_reg_info (unsigned int sreg, enum cris_disass_family distype) |
1339 |
{ |
1340 |
int i;
|
1341 |
|
1342 |
for (i = 0; cris_spec_regs[i].name != NULL; i++) |
1343 |
{ |
1344 |
if (cris_spec_regs[i].number == sreg)
|
1345 |
{ |
1346 |
if (distype == cris_dis_v32)
|
1347 |
switch (cris_spec_regs[i].applicable_version)
|
1348 |
{ |
1349 |
case cris_ver_warning:
|
1350 |
case cris_ver_version_all:
|
1351 |
case cris_ver_v3p:
|
1352 |
case cris_ver_v8p:
|
1353 |
case cris_ver_v10p:
|
1354 |
case cris_ver_v32p:
|
1355 |
/* No ambiguous sizes or register names with CRISv32. */
|
1356 |
if (cris_spec_regs[i].warning == NULL) |
1357 |
return &cris_spec_regs[i];
|
1358 |
default:
|
1359 |
; |
1360 |
} |
1361 |
else if (cris_spec_regs[i].applicable_version != cris_ver_v32p) |
1362 |
return &cris_spec_regs[i];
|
1363 |
} |
1364 |
} |
1365 |
|
1366 |
return NULL; |
1367 |
} |
1368 |
|
1369 |
/* Return the number of bits in the argument. */
|
1370 |
|
1371 |
static int |
1372 |
number_of_bits (unsigned int val) |
1373 |
{ |
1374 |
int bits;
|
1375 |
|
1376 |
for (bits = 0; val != 0; val &= val - 1) |
1377 |
bits++; |
1378 |
|
1379 |
return bits;
|
1380 |
} |
1381 |
|
1382 |
/* Get an entry in the opcode-table. */
|
1383 |
|
1384 |
static const struct cris_opcode * |
1385 |
get_opcode_entry (unsigned int insn, |
1386 |
unsigned int prefix_insn, |
1387 |
struct cris_disasm_data *disdata)
|
1388 |
{ |
1389 |
/* For non-prefixed insns, we keep a table of pointers, indexed by the
|
1390 |
insn code. Each entry is initialized when found to be NULL. */
|
1391 |
static const struct cris_opcode **opc_table = NULL; |
1392 |
|
1393 |
const struct cris_opcode *max_matchedp = NULL; |
1394 |
const struct cris_opcode **prefix_opc_table = NULL; |
1395 |
|
1396 |
/* We hold a table for each prefix that need to be handled differently. */
|
1397 |
static const struct cris_opcode **dip_prefixes = NULL; |
1398 |
static const struct cris_opcode **bdapq_m1_prefixes = NULL; |
1399 |
static const struct cris_opcode **bdapq_m2_prefixes = NULL; |
1400 |
static const struct cris_opcode **bdapq_m4_prefixes = NULL; |
1401 |
static const struct cris_opcode **rest_prefixes = NULL; |
1402 |
|
1403 |
/* Allocate and clear the opcode-table. */
|
1404 |
if (opc_table == NULL) |
1405 |
{ |
1406 |
opc_table = qemu_malloc (65536 * sizeof (opc_table[0])); |
1407 |
|
1408 |
memset (opc_table, 0, 65536 * sizeof (const struct cris_opcode *)); |
1409 |
|
1410 |
dip_prefixes |
1411 |
= qemu_malloc (65536 * sizeof (const struct cris_opcode **)); |
1412 |
|
1413 |
memset (dip_prefixes, 0, 65536 * sizeof (dip_prefixes[0])); |
1414 |
|
1415 |
bdapq_m1_prefixes |
1416 |
= qemu_malloc (65536 * sizeof (const struct cris_opcode **)); |
1417 |
|
1418 |
memset (bdapq_m1_prefixes, 0, 65536 * sizeof (bdapq_m1_prefixes[0])); |
1419 |
|
1420 |
bdapq_m2_prefixes |
1421 |
= qemu_malloc (65536 * sizeof (const struct cris_opcode **)); |
1422 |
|
1423 |
memset (bdapq_m2_prefixes, 0, 65536 * sizeof (bdapq_m2_prefixes[0])); |
1424 |
|
1425 |
bdapq_m4_prefixes |
1426 |
= qemu_malloc (65536 * sizeof (const struct cris_opcode **)); |
1427 |
|
1428 |
memset (bdapq_m4_prefixes, 0, 65536 * sizeof (bdapq_m4_prefixes[0])); |
1429 |
|
1430 |
rest_prefixes |
1431 |
= qemu_malloc (65536 * sizeof (const struct cris_opcode **)); |
1432 |
|
1433 |
memset (rest_prefixes, 0, 65536 * sizeof (rest_prefixes[0])); |
1434 |
} |
1435 |
|
1436 |
/* Get the right table if this is a prefix.
|
1437 |
This code is connected to cris_constraints in that it knows what
|
1438 |
prefixes play a role in recognition of patterns; the necessary
|
1439 |
state is reflected by which table is used. If constraints
|
1440 |
involving match or non-match of prefix insns are changed, then this
|
1441 |
probably needs changing too. */
|
1442 |
if (prefix_insn != NO_CRIS_PREFIX)
|
1443 |
{ |
1444 |
const struct cris_opcode *popcodep |
1445 |
= (opc_table[prefix_insn] != NULL
|
1446 |
? opc_table[prefix_insn] |
1447 |
: get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata)); |
1448 |
|
1449 |
if (popcodep == NULL) |
1450 |
return NULL; |
1451 |
|
1452 |
if (popcodep->match == BDAP_QUICK_OPCODE)
|
1453 |
{ |
1454 |
/* Since some offsets are recognized with "push" macros, we
|
1455 |
have to have different tables for them. */
|
1456 |
int offset = (prefix_insn & 255); |
1457 |
|
1458 |
if (offset > 127) |
1459 |
offset -= 256;
|
1460 |
|
1461 |
switch (offset)
|
1462 |
{ |
1463 |
case -4: |
1464 |
prefix_opc_table = bdapq_m4_prefixes; |
1465 |
break;
|
1466 |
|
1467 |
case -2: |
1468 |
prefix_opc_table = bdapq_m2_prefixes; |
1469 |
break;
|
1470 |
|
1471 |
case -1: |
1472 |
prefix_opc_table = bdapq_m1_prefixes; |
1473 |
break;
|
1474 |
|
1475 |
default:
|
1476 |
prefix_opc_table = rest_prefixes; |
1477 |
break;
|
1478 |
} |
1479 |
} |
1480 |
else if (popcodep->match == DIP_OPCODE) |
1481 |
/* We don't allow postincrement when the prefix is DIP, so use a
|
1482 |
different table for DIP. */
|
1483 |
prefix_opc_table = dip_prefixes; |
1484 |
else
|
1485 |
prefix_opc_table = rest_prefixes; |
1486 |
} |
1487 |
|
1488 |
if (prefix_insn != NO_CRIS_PREFIX
|
1489 |
&& prefix_opc_table[insn] != NULL)
|
1490 |
max_matchedp = prefix_opc_table[insn]; |
1491 |
else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL) |
1492 |
max_matchedp = opc_table[insn]; |
1493 |
else
|
1494 |
{ |
1495 |
const struct cris_opcode *opcodep; |
1496 |
int max_level_of_match = -1; |
1497 |
|
1498 |
for (opcodep = cris_opcodes;
|
1499 |
opcodep->name != NULL;
|
1500 |
opcodep++) |
1501 |
{ |
1502 |
int level_of_match;
|
1503 |
|
1504 |
if (disdata->distype == cris_dis_v32)
|
1505 |
{ |
1506 |
switch (opcodep->applicable_version)
|
1507 |
{ |
1508 |
case cris_ver_version_all:
|
1509 |
break;
|
1510 |
|
1511 |
case cris_ver_v0_3:
|
1512 |
case cris_ver_v0_10:
|
1513 |
case cris_ver_v3_10:
|
1514 |
case cris_ver_sim_v0_10:
|
1515 |
case cris_ver_v8_10:
|
1516 |
case cris_ver_v10:
|
1517 |
case cris_ver_warning:
|
1518 |
continue;
|
1519 |
|
1520 |
case cris_ver_v3p:
|
1521 |
case cris_ver_v8p:
|
1522 |
case cris_ver_v10p:
|
1523 |
case cris_ver_v32p:
|
1524 |
break;
|
1525 |
|
1526 |
case cris_ver_v8:
|
1527 |
abort (); |
1528 |
default:
|
1529 |
abort (); |
1530 |
} |
1531 |
} |
1532 |
else
|
1533 |
{ |
1534 |
switch (opcodep->applicable_version)
|
1535 |
{ |
1536 |
case cris_ver_version_all:
|
1537 |
case cris_ver_v0_3:
|
1538 |
case cris_ver_v3p:
|
1539 |
case cris_ver_v0_10:
|
1540 |
case cris_ver_v8p:
|
1541 |
case cris_ver_v8_10:
|
1542 |
case cris_ver_v10:
|
1543 |
case cris_ver_sim_v0_10:
|
1544 |
case cris_ver_v10p:
|
1545 |
case cris_ver_warning:
|
1546 |
break;
|
1547 |
|
1548 |
case cris_ver_v32p:
|
1549 |
continue;
|
1550 |
|
1551 |
case cris_ver_v8:
|
1552 |
abort (); |
1553 |
default:
|
1554 |
abort (); |
1555 |
} |
1556 |
} |
1557 |
|
1558 |
/* We give a double lead for bits matching the template in
|
1559 |
cris_opcodes. Not even, because then "move p8,r10" would
|
1560 |
be given 2 bits lead over "clear.d r10". When there's a
|
1561 |
tie, the first entry in the table wins. This is
|
1562 |
deliberate, to avoid a more complicated recognition
|
1563 |
formula. */
|
1564 |
if ((opcodep->match & insn) == opcodep->match
|
1565 |
&& (opcodep->lose & insn) == 0
|
1566 |
&& ((level_of_match |
1567 |
= cris_constraint (opcodep->args, |
1568 |
insn, |
1569 |
prefix_insn, |
1570 |
disdata)) |
1571 |
>= 0)
|
1572 |
&& ((level_of_match |
1573 |
+= 2 * number_of_bits (opcodep->match
|
1574 |
| opcodep->lose)) |
1575 |
> max_level_of_match)) |
1576 |
{ |
1577 |
max_matchedp = opcodep; |
1578 |
max_level_of_match = level_of_match; |
1579 |
|
1580 |
/* If there was a full match, never mind looking
|
1581 |
further. */
|
1582 |
if (level_of_match >= 2 * 16) |
1583 |
break;
|
1584 |
} |
1585 |
} |
1586 |
/* Fill in the new entry.
|
1587 |
|
1588 |
If there are changes to the opcode-table involving prefixes, and
|
1589 |
disassembly then does not work correctly, try removing the
|
1590 |
else-clause below that fills in the prefix-table. If that
|
1591 |
helps, you need to change the prefix_opc_table setting above, or
|
1592 |
something related. */
|
1593 |
if (prefix_insn == NO_CRIS_PREFIX)
|
1594 |
opc_table[insn] = max_matchedp; |
1595 |
else
|
1596 |
prefix_opc_table[insn] = max_matchedp; |
1597 |
} |
1598 |
|
1599 |
return max_matchedp;
|
1600 |
} |
1601 |
|
1602 |
/* Return -1 if the constraints of a bitwise-matched instruction say
|
1603 |
that there is no match. Otherwise return a nonnegative number
|
1604 |
indicating the confidence in the match (higher is better). */
|
1605 |
|
1606 |
static int |
1607 |
cris_constraint (const char *cs, |
1608 |
unsigned int insn, |
1609 |
unsigned int prefix_insn, |
1610 |
struct cris_disasm_data *disdata)
|
1611 |
{ |
1612 |
int retval = 0; |
1613 |
int tmp;
|
1614 |
int prefix_ok = 0; |
1615 |
const char *s; |
1616 |
|
1617 |
for (s = cs; *s; s++)
|
1618 |
switch (*s)
|
1619 |
{ |
1620 |
case '!': |
1621 |
/* Do not recognize "pop" if there's a prefix and then only for
|
1622 |
v0..v10. */
|
1623 |
if (prefix_insn != NO_CRIS_PREFIX
|
1624 |
|| disdata->distype != cris_dis_v0_v10) |
1625 |
return -1; |
1626 |
break;
|
1627 |
|
1628 |
case 'U': |
1629 |
/* Not recognized at disassembly. */
|
1630 |
return -1; |
1631 |
|
1632 |
case 'M': |
1633 |
/* Size modifier for "clear", i.e. special register 0, 4 or 8.
|
1634 |
Check that it is one of them. Only special register 12 could
|
1635 |
be mismatched, but checking for matches is more logical than
|
1636 |
checking for mismatches when there are only a few cases. */
|
1637 |
tmp = ((insn >> 12) & 0xf); |
1638 |
if (tmp != 0 && tmp != 4 && tmp != 8) |
1639 |
return -1; |
1640 |
break;
|
1641 |
|
1642 |
case 'm': |
1643 |
if ((insn & 0x30) == 0x30) |
1644 |
return -1; |
1645 |
break;
|
1646 |
|
1647 |
case 'S': |
1648 |
/* A prefix operand without side-effect. */
|
1649 |
if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0) |
1650 |
{ |
1651 |
prefix_ok = 1;
|
1652 |
break;
|
1653 |
} |
1654 |
else
|
1655 |
return -1; |
1656 |
|
1657 |
case 's': |
1658 |
case 'y': |
1659 |
case 'Y': |
1660 |
/* If this is a prefixed insn with postincrement (side-effect),
|
1661 |
the prefix must not be DIP. */
|
1662 |
if (prefix_insn != NO_CRIS_PREFIX)
|
1663 |
{ |
1664 |
if (insn & 0x400) |
1665 |
{ |
1666 |
const struct cris_opcode *prefix_opcodep |
1667 |
= get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata); |
1668 |
|
1669 |
if (prefix_opcodep->match == DIP_OPCODE)
|
1670 |
return -1; |
1671 |
} |
1672 |
|
1673 |
prefix_ok = 1;
|
1674 |
} |
1675 |
break;
|
1676 |
|
1677 |
case 'B': |
1678 |
/* If we don't fall through, then the prefix is ok. */
|
1679 |
prefix_ok = 1;
|
1680 |
|
1681 |
/* A "push" prefix. Check for valid "push" size.
|
1682 |
In case of special register, it may be != 4. */
|
1683 |
if (prefix_insn != NO_CRIS_PREFIX)
|
1684 |
{ |
1685 |
/* Match the prefix insn to BDAPQ. */
|
1686 |
const struct cris_opcode *prefix_opcodep |
1687 |
= get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata); |
1688 |
|
1689 |
if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
|
1690 |
{ |
1691 |
int pushsize = (prefix_insn & 255); |
1692 |
|
1693 |
if (pushsize > 127) |
1694 |
pushsize -= 256;
|
1695 |
|
1696 |
if (s[1] == 'P') |
1697 |
{ |
1698 |
unsigned int spec_reg = (insn >> 12) & 15; |
1699 |
const struct cris_spec_reg *sregp |
1700 |
= spec_reg_info (spec_reg, disdata->distype); |
1701 |
|
1702 |
/* For a special-register, the "prefix size" must
|
1703 |
match the size of the register. */
|
1704 |
if (sregp && sregp->reg_size == (unsigned int) -pushsize) |
1705 |
break;
|
1706 |
} |
1707 |
else if (s[1] == 'R') |
1708 |
{ |
1709 |
if ((insn & 0x30) == 0x20 && pushsize == -4) |
1710 |
break;
|
1711 |
} |
1712 |
/* FIXME: Should abort here; next constraint letter
|
1713 |
*must* be 'P' or 'R'. */
|
1714 |
} |
1715 |
} |
1716 |
return -1; |
1717 |
|
1718 |
case 'D': |
1719 |
retval = (((insn >> 12) & 15) == (insn & 15)); |
1720 |
if (!retval)
|
1721 |
return -1; |
1722 |
else
|
1723 |
retval += 4;
|
1724 |
break;
|
1725 |
|
1726 |
case 'P': |
1727 |
{ |
1728 |
const struct cris_spec_reg *sregp |
1729 |
= spec_reg_info ((insn >> 12) & 15, disdata->distype); |
1730 |
|
1731 |
/* Since we match four bits, we will give a value of 4-1 = 3
|
1732 |
in a match. If there is a corresponding exact match of a
|
1733 |
special register in another pattern, it will get a value of
|
1734 |
4, which will be higher. This should be correct in that an
|
1735 |
exact pattern would match better than a general pattern.
|
1736 |
|
1737 |
Note that there is a reason for not returning zero; the
|
1738 |
pattern for "clear" is partly matched in the bit-pattern
|
1739 |
(the two lower bits must be zero), while the bit-pattern
|
1740 |
for a move from a special register is matched in the
|
1741 |
register constraint. */
|
1742 |
|
1743 |
if (sregp != NULL) |
1744 |
{ |
1745 |
retval += 3;
|
1746 |
break;
|
1747 |
} |
1748 |
else
|
1749 |
return -1; |
1750 |
} |
1751 |
} |
1752 |
|
1753 |
if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
|
1754 |
return -1; |
1755 |
|
1756 |
return retval;
|
1757 |
} |
1758 |
|
1759 |
/* Format number as hex with a leading "0x" into outbuffer. */
|
1760 |
|
1761 |
static char * |
1762 |
format_hex (unsigned long number, |
1763 |
char *outbuffer,
|
1764 |
struct cris_disasm_data *disdata)
|
1765 |
{ |
1766 |
/* Truncate negative numbers on >32-bit hosts. */
|
1767 |
number &= 0xffffffff;
|
1768 |
|
1769 |
sprintf (outbuffer, "0x%lx", number);
|
1770 |
|
1771 |
/* Save this value for the "case" support. */
|
1772 |
if (TRACE_CASE)
|
1773 |
last_immediate = number; |
1774 |
|
1775 |
return outbuffer + strlen (outbuffer);
|
1776 |
} |
1777 |
|
1778 |
/* Format number as decimal into outbuffer. Parameter signedp says
|
1779 |
whether the number should be formatted as signed (!= 0) or
|
1780 |
unsigned (== 0). */
|
1781 |
|
1782 |
static char * |
1783 |
format_dec (long number, char *outbuffer, int signedp) |
1784 |
{ |
1785 |
last_immediate = number; |
1786 |
sprintf (outbuffer, signedp ? "%ld" : "%lu", number); |
1787 |
|
1788 |
return outbuffer + strlen (outbuffer);
|
1789 |
} |
1790 |
|
1791 |
/* Format the name of the general register regno into outbuffer. */
|
1792 |
|
1793 |
static char * |
1794 |
format_reg (struct cris_disasm_data *disdata,
|
1795 |
int regno,
|
1796 |
char *outbuffer_start,
|
1797 |
bfd_boolean with_reg_prefix) |
1798 |
{ |
1799 |
char *outbuffer = outbuffer_start;
|
1800 |
|
1801 |
if (with_reg_prefix)
|
1802 |
*outbuffer++ = REGISTER_PREFIX_CHAR; |
1803 |
|
1804 |
switch (regno)
|
1805 |
{ |
1806 |
case 15: |
1807 |
/* For v32, there is no context in which we output PC. */
|
1808 |
if (disdata->distype == cris_dis_v32)
|
1809 |
strcpy (outbuffer, "acr");
|
1810 |
else
|
1811 |
strcpy (outbuffer, "pc");
|
1812 |
break;
|
1813 |
|
1814 |
case 14: |
1815 |
strcpy (outbuffer, "sp");
|
1816 |
break;
|
1817 |
|
1818 |
default:
|
1819 |
sprintf (outbuffer, "r%d", regno);
|
1820 |
break;
|
1821 |
} |
1822 |
|
1823 |
return outbuffer_start + strlen (outbuffer_start);
|
1824 |
} |
1825 |
|
1826 |
/* Format the name of a support register into outbuffer. */
|
1827 |
|
1828 |
static char * |
1829 |
format_sup_reg (unsigned int regno, |
1830 |
char *outbuffer_start,
|
1831 |
bfd_boolean with_reg_prefix) |
1832 |
{ |
1833 |
char *outbuffer = outbuffer_start;
|
1834 |
int i;
|
1835 |
|
1836 |
if (with_reg_prefix)
|
1837 |
*outbuffer++ = REGISTER_PREFIX_CHAR; |
1838 |
|
1839 |
for (i = 0; cris_support_regs[i].name != NULL; i++) |
1840 |
if (cris_support_regs[i].number == regno)
|
1841 |
{ |
1842 |
sprintf (outbuffer, "%s", cris_support_regs[i].name);
|
1843 |
return outbuffer_start + strlen (outbuffer_start);
|
1844 |
} |
1845 |
|
1846 |
/* There's supposed to be register names covering all numbers, though
|
1847 |
some may be generic names. */
|
1848 |
sprintf (outbuffer, "format_sup_reg-BUG");
|
1849 |
return outbuffer_start + strlen (outbuffer_start);
|
1850 |
} |
1851 |
|
1852 |
/* Return the length of an instruction. */
|
1853 |
|
1854 |
static unsigned |
1855 |
bytes_to_skip (unsigned int insn, |
1856 |
const struct cris_opcode *matchedp, |
1857 |
enum cris_disass_family distype,
|
1858 |
const struct cris_opcode *prefix_matchedp) |
1859 |
{ |
1860 |
/* Each insn is a word plus "immediate" operands. */
|
1861 |
unsigned to_skip = 2; |
1862 |
const char *template = matchedp->args; |
1863 |
const char *s; |
1864 |
|
1865 |
for (s = template; *s; s++)
|
1866 |
if ((*s == 's' || *s == 'N' || *s == 'Y') |
1867 |
&& (insn & 0x400) && (insn & 15) == 15 |
1868 |
&& prefix_matchedp == NULL)
|
1869 |
{ |
1870 |
/* Immediate via [pc+], so we have to check the size of the
|
1871 |
operand. */
|
1872 |
int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3)); |
1873 |
|
1874 |
if (matchedp->imm_oprnd_size == SIZE_FIX_32)
|
1875 |
to_skip += 4;
|
1876 |
else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG) |
1877 |
{ |
1878 |
const struct cris_spec_reg *sregp |
1879 |
= spec_reg_info ((insn >> 12) & 15, distype); |
1880 |
|
1881 |
/* FIXME: Improve error handling; should have been caught
|
1882 |
earlier. */
|
1883 |
if (sregp == NULL) |
1884 |
return 2; |
1885 |
|
1886 |
/* PC is incremented by two, not one, for a byte. Except on
|
1887 |
CRISv32, where constants are always DWORD-size for
|
1888 |
special registers. */
|
1889 |
to_skip += |
1890 |
distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1; |
1891 |
} |
1892 |
else
|
1893 |
to_skip += (mode_size + 1) & ~1; |
1894 |
} |
1895 |
else if (*s == 'n') |
1896 |
to_skip += 4;
|
1897 |
else if (*s == 'b') |
1898 |
to_skip += 2;
|
1899 |
|
1900 |
return to_skip;
|
1901 |
} |
1902 |
|
1903 |
/* Print condition code flags. */
|
1904 |
|
1905 |
static char * |
1906 |
print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp) |
1907 |
{ |
1908 |
/* Use the v8 (Etrax 100) flag definitions for disassembly.
|
1909 |
The differences with v0 (Etrax 1..4) vs. Svinto are:
|
1910 |
v0 'd' <=> v8 'm'
|
1911 |
v0 'e' <=> v8 'b'.
|
1912 |
FIXME: Emit v0..v3 flag names somehow. */
|
1913 |
static const char v8_fnames[] = "cvznxibm"; |
1914 |
static const char v32_fnames[] = "cvznxiup"; |
1915 |
const char *fnames |
1916 |
= disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames; |
1917 |
|
1918 |
unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15)); |
1919 |
int i;
|
1920 |
|
1921 |
for (i = 0; i < 8; i++) |
1922 |
if (flagbits & (1 << i)) |
1923 |
*cp++ = fnames[i]; |
1924 |
|
1925 |
return cp;
|
1926 |
} |
1927 |
|
1928 |
/* Print out an insn with its operands, and update the info->insn_type
|
1929 |
fields. The prefix_opcodep and the rest hold a prefix insn that is
|
1930 |
supposed to be output as an address mode. */
|
1931 |
|
1932 |
static void |
1933 |
print_with_operands (const struct cris_opcode *opcodep, |
1934 |
unsigned int insn, |
1935 |
unsigned char *buffer, |
1936 |
bfd_vma addr, |
1937 |
disassemble_info *info, |
1938 |
/* If a prefix insn was before this insn (and is supposed
|
1939 |
to be output as an address), here is a description of
|
1940 |
it. */
|
1941 |
const struct cris_opcode *prefix_opcodep, |
1942 |
unsigned int prefix_insn, |
1943 |
unsigned char *prefix_buffer, |
1944 |
bfd_boolean with_reg_prefix) |
1945 |
{ |
1946 |
/* Get a buffer of somewhat reasonable size where we store
|
1947 |
intermediate parts of the insn. */
|
1948 |
char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2]; |
1949 |
char *tp = temp;
|
1950 |
static const char mode_char[] = "bwd?"; |
1951 |
const char *s; |
1952 |
const char *cs; |
1953 |
struct cris_disasm_data *disdata
|
1954 |
= (struct cris_disasm_data *) info->private_data;
|
1955 |
|
1956 |
/* Print out the name first thing we do. */
|
1957 |
(*info->fprintf_func) (info->stream, "%s", opcodep->name);
|
1958 |
|
1959 |
cs = opcodep->args; |
1960 |
s = cs; |
1961 |
|
1962 |
/* Ignore any prefix indicator. */
|
1963 |
if (*s == 'p') |
1964 |
s++; |
1965 |
|
1966 |
if (*s == 'm' || *s == 'M' || *s == 'z') |
1967 |
{ |
1968 |
*tp++ = '.';
|
1969 |
|
1970 |
/* Get the size-letter. */
|
1971 |
*tp++ = *s == 'M'
|
1972 |
? (insn & 0x8000 ? 'd' |
1973 |
: insn & 0x4000 ? 'w' : 'b') |
1974 |
: mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)]; |
1975 |
|
1976 |
/* Ignore the size and the space character that follows. */
|
1977 |
s += 2;
|
1978 |
} |
1979 |
|
1980 |
/* Add a space if this isn't a long-branch, because for those will add
|
1981 |
the condition part of the name later. */
|
1982 |
if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256)) |
1983 |
*tp++ = ' ';
|
1984 |
|
1985 |
/* Fill in the insn-type if deducible from the name (and there's no
|
1986 |
better way). */
|
1987 |
if (opcodep->name[0] == 'j') |
1988 |
{ |
1989 |
if (CONST_STRNEQ (opcodep->name, "jsr")) |
1990 |
/* It's "jsr" or "jsrc". */
|
1991 |
info->insn_type = dis_jsr; |
1992 |
else
|
1993 |
/* Any other jump-type insn is considered a branch. */
|
1994 |
info->insn_type = dis_branch; |
1995 |
} |
1996 |
|
1997 |
/* We might know some more fields right now. */
|
1998 |
info->branch_delay_insns = opcodep->delayed; |
1999 |
|
2000 |
/* Handle operands. */
|
2001 |
for (; *s; s++)
|
2002 |
{ |
2003 |
switch (*s)
|
2004 |
{ |
2005 |
case 'T': |
2006 |
tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix); |
2007 |
break;
|
2008 |
|
2009 |
case 'A': |
2010 |
if (with_reg_prefix)
|
2011 |
*tp++ = REGISTER_PREFIX_CHAR; |
2012 |
*tp++ = 'a';
|
2013 |
*tp++ = 'c';
|
2014 |
*tp++ = 'r';
|
2015 |
break;
|
2016 |
|
2017 |
case '[': |
2018 |
case ']': |
2019 |
case ',': |
2020 |
*tp++ = *s; |
2021 |
break;
|
2022 |
|
2023 |
case '!': |
2024 |
/* Ignore at this point; used at earlier stages to avoid
|
2025 |
recognition if there's a prefix at something that in other
|
2026 |
ways looks like a "pop". */
|
2027 |
break;
|
2028 |
|
2029 |
case 'd': |
2030 |
/* Ignore. This is an optional ".d " on the large one of
|
2031 |
relaxable insns. */
|
2032 |
break;
|
2033 |
|
2034 |
case 'B': |
2035 |
/* This was the prefix that made this a "push". We've already
|
2036 |
handled it by recognizing it, so signal that the prefix is
|
2037 |
handled by setting it to NULL. */
|
2038 |
prefix_opcodep = NULL;
|
2039 |
break;
|
2040 |
|
2041 |
case 'D': |
2042 |
case 'r': |
2043 |
tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
|
2044 |
break;
|
2045 |
|
2046 |
case 'R': |
2047 |
tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
2048 |
break;
|
2049 |
|
2050 |
case 'n': |
2051 |
{ |
2052 |
/* Like N but pc-relative to the start of the insn. */
|
2053 |
unsigned long number |
2054 |
= (buffer[2] + buffer[3] * 256 + buffer[4] * 65536 |
2055 |
+ buffer[5] * 0x1000000 + addr); |
2056 |
|
2057 |
/* Finish off and output previous formatted bytes. */
|
2058 |
*tp = 0;
|
2059 |
if (temp[0]) |
2060 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2061 |
tp = temp; |
2062 |
|
2063 |
(*info->print_address_func) ((bfd_vma) number, info); |
2064 |
} |
2065 |
break;
|
2066 |
|
2067 |
case 'u': |
2068 |
{ |
2069 |
/* Like n but the offset is bits <3:0> in the instruction. */
|
2070 |
unsigned long number = (buffer[0] & 0xf) * 2 + addr; |
2071 |
|
2072 |
/* Finish off and output previous formatted bytes. */
|
2073 |
*tp = 0;
|
2074 |
if (temp[0]) |
2075 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2076 |
tp = temp; |
2077 |
|
2078 |
(*info->print_address_func) ((bfd_vma) number, info); |
2079 |
} |
2080 |
break;
|
2081 |
|
2082 |
case 'N': |
2083 |
case 'y': |
2084 |
case 'Y': |
2085 |
case 'S': |
2086 |
case 's': |
2087 |
/* Any "normal" memory operand. */
|
2088 |
if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL) |
2089 |
{ |
2090 |
/* We're looking at [pc+], i.e. we need to output an immediate
|
2091 |
number, where the size can depend on different things. */
|
2092 |
long number;
|
2093 |
int signedp
|
2094 |
= ((*cs == 'z' && (insn & 0x20)) |
2095 |
|| opcodep->match == BDAP_QUICK_OPCODE); |
2096 |
int nbytes;
|
2097 |
|
2098 |
if (opcodep->imm_oprnd_size == SIZE_FIX_32)
|
2099 |
nbytes = 4;
|
2100 |
else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG) |
2101 |
{ |
2102 |
const struct cris_spec_reg *sregp |
2103 |
= spec_reg_info ((insn >> 12) & 15, disdata->distype); |
2104 |
|
2105 |
/* A NULL return should have been as a non-match earlier,
|
2106 |
so catch it as an internal error in the error-case
|
2107 |
below. */
|
2108 |
if (sregp == NULL) |
2109 |
/* Whatever non-valid size. */
|
2110 |
nbytes = 42;
|
2111 |
else
|
2112 |
/* PC is always incremented by a multiple of two.
|
2113 |
For CRISv32, immediates are always 4 bytes for
|
2114 |
special registers. */
|
2115 |
nbytes = disdata->distype == cris_dis_v32 |
2116 |
? 4 : (sregp->reg_size + 1) & ~1; |
2117 |
} |
2118 |
else
|
2119 |
{ |
2120 |
int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3)); |
2121 |
|
2122 |
if (mode_size == 1) |
2123 |
nbytes = 2;
|
2124 |
else
|
2125 |
nbytes = mode_size; |
2126 |
} |
2127 |
|
2128 |
switch (nbytes)
|
2129 |
{ |
2130 |
case 1: |
2131 |
number = buffer[2];
|
2132 |
if (signedp && number > 127) |
2133 |
number -= 256;
|
2134 |
break;
|
2135 |
|
2136 |
case 2: |
2137 |
number = buffer[2] + buffer[3] * 256; |
2138 |
if (signedp && number > 32767) |
2139 |
number -= 65536;
|
2140 |
break;
|
2141 |
|
2142 |
case 4: |
2143 |
number |
2144 |
= buffer[2] + buffer[3] * 256 + buffer[4] * 65536 |
2145 |
+ buffer[5] * 0x1000000; |
2146 |
break;
|
2147 |
|
2148 |
default:
|
2149 |
strcpy (tp, "bug");
|
2150 |
tp += 3;
|
2151 |
number = 42;
|
2152 |
} |
2153 |
|
2154 |
if ((*cs == 'z' && (insn & 0x20)) |
2155 |
|| (opcodep->match == BDAP_QUICK_OPCODE |
2156 |
&& (nbytes <= 2 || buffer[1 + nbytes] == 0))) |
2157 |
tp = format_dec (number, tp, signedp); |
2158 |
else
|
2159 |
{ |
2160 |
unsigned int highbyte = (number >> 24) & 0xff; |
2161 |
|
2162 |
/* Either output this as an address or as a number. If it's
|
2163 |
a dword with the same high-byte as the address of the
|
2164 |
insn, assume it's an address, and also if it's a non-zero
|
2165 |
non-0xff high-byte. If this is a jsr or a jump, then
|
2166 |
it's definitely an address. */
|
2167 |
if (nbytes == 4 |
2168 |
&& (highbyte == ((addr >> 24) & 0xff) |
2169 |
|| (highbyte != 0 && highbyte != 0xff) |
2170 |
|| info->insn_type == dis_branch |
2171 |
|| info->insn_type == dis_jsr)) |
2172 |
{ |
2173 |
/* Finish off and output previous formatted bytes. */
|
2174 |
*tp = 0;
|
2175 |
tp = temp; |
2176 |
if (temp[0]) |
2177 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2178 |
|
2179 |
(*info->print_address_func) ((bfd_vma) number, info); |
2180 |
|
2181 |
info->target = number; |
2182 |
} |
2183 |
else
|
2184 |
tp = format_hex (number, tp, disdata); |
2185 |
} |
2186 |
} |
2187 |
else
|
2188 |
{ |
2189 |
/* Not an immediate number. Then this is a (possibly
|
2190 |
prefixed) memory operand. */
|
2191 |
if (info->insn_type != dis_nonbranch)
|
2192 |
{ |
2193 |
int mode_size
|
2194 |
= 1 << ((insn >> 4) |
2195 |
& (opcodep->args[0] == 'z' ? 1 : 3)); |
2196 |
int size;
|
2197 |
info->insn_type = dis_dref; |
2198 |
info->flags |= CRIS_DIS_FLAG_MEMREF; |
2199 |
|
2200 |
if (opcodep->imm_oprnd_size == SIZE_FIX_32)
|
2201 |
size = 4;
|
2202 |
else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG) |
2203 |
{ |
2204 |
const struct cris_spec_reg *sregp |
2205 |
= spec_reg_info ((insn >> 12) & 15, disdata->distype); |
2206 |
|
2207 |
/* FIXME: Improve error handling; should have been caught
|
2208 |
earlier. */
|
2209 |
if (sregp == NULL) |
2210 |
size = 4;
|
2211 |
else
|
2212 |
size = sregp->reg_size; |
2213 |
} |
2214 |
else
|
2215 |
size = mode_size; |
2216 |
|
2217 |
info->data_size = size; |
2218 |
} |
2219 |
|
2220 |
*tp++ = '[';
|
2221 |
|
2222 |
if (prefix_opcodep
|
2223 |
/* We don't match dip with a postincremented field
|
2224 |
as a side-effect address mode. */
|
2225 |
&& ((insn & 0x400) == 0 |
2226 |
|| prefix_opcodep->match != DIP_OPCODE)) |
2227 |
{ |
2228 |
if (insn & 0x400) |
2229 |
{ |
2230 |
tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
|
2231 |
*tp++ = '=';
|
2232 |
} |
2233 |
|
2234 |
|
2235 |
/* We mainly ignore the prefix format string when the
|
2236 |
address-mode syntax is output. */
|
2237 |
switch (prefix_opcodep->match)
|
2238 |
{ |
2239 |
case DIP_OPCODE:
|
2240 |
/* It's [r], [r+] or [pc+]. */
|
2241 |
if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15) |
2242 |
{ |
2243 |
/* It's [pc+]. This cannot possibly be anything
|
2244 |
but an address. */
|
2245 |
unsigned long number |
2246 |
= prefix_buffer[2] + prefix_buffer[3] * 256 |
2247 |
+ prefix_buffer[4] * 65536 |
2248 |
+ prefix_buffer[5] * 0x1000000; |
2249 |
|
2250 |
info->target = (bfd_vma) number; |
2251 |
|
2252 |
/* Finish off and output previous formatted
|
2253 |
data. */
|
2254 |
*tp = 0;
|
2255 |
tp = temp; |
2256 |
if (temp[0]) |
2257 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2258 |
|
2259 |
(*info->print_address_func) ((bfd_vma) number, info); |
2260 |
} |
2261 |
else
|
2262 |
{ |
2263 |
/* For a memref in an address, we use target2.
|
2264 |
In this case, target is zero. */
|
2265 |
info->flags |
2266 |
|= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG |
2267 |
| CRIS_DIS_FLAG_MEM_TARGET2_MEM); |
2268 |
|
2269 |
info->target2 = prefix_insn & 15;
|
2270 |
|
2271 |
*tp++ = '[';
|
2272 |
tp = format_reg (disdata, prefix_insn & 15, tp,
|
2273 |
with_reg_prefix); |
2274 |
if (prefix_insn & 0x400) |
2275 |
*tp++ = '+';
|
2276 |
*tp++ = ']';
|
2277 |
} |
2278 |
break;
|
2279 |
|
2280 |
case BDAP_QUICK_OPCODE:
|
2281 |
{ |
2282 |
int number;
|
2283 |
|
2284 |
number = prefix_buffer[0];
|
2285 |
if (number > 127) |
2286 |
number -= 256;
|
2287 |
|
2288 |
/* Output "reg+num" or, if num < 0, "reg-num". */
|
2289 |
tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
2290 |
with_reg_prefix); |
2291 |
if (number >= 0) |
2292 |
*tp++ = '+';
|
2293 |
tp = format_dec (number, tp, 1);
|
2294 |
|
2295 |
info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; |
2296 |
info->target = (prefix_insn >> 12) & 15; |
2297 |
info->target2 = (bfd_vma) number; |
2298 |
break;
|
2299 |
} |
2300 |
|
2301 |
case BIAP_OPCODE:
|
2302 |
/* Output "r+R.m". */
|
2303 |
tp = format_reg (disdata, prefix_insn & 15, tp,
|
2304 |
with_reg_prefix); |
2305 |
*tp++ = '+';
|
2306 |
tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
2307 |
with_reg_prefix); |
2308 |
*tp++ = '.';
|
2309 |
*tp++ = mode_char[(prefix_insn >> 4) & 3]; |
2310 |
|
2311 |
info->flags |
2312 |
|= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG |
2313 |
| CRIS_DIS_FLAG_MEM_TARGET_IS_REG |
2314 |
|
2315 |
| ((prefix_insn & 0x8000)
|
2316 |
? CRIS_DIS_FLAG_MEM_TARGET2_MULT4 |
2317 |
: ((prefix_insn & 0x8000)
|
2318 |
? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
|
2319 |
|
2320 |
/* Is it the casejump? It's a "adds.w [pc+r%d.w],pc". */
|
2321 |
if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f) |
2322 |
/* Then start interpreting data as offsets. */
|
2323 |
case_offset_counter = no_of_case_offsets; |
2324 |
break;
|
2325 |
|
2326 |
case BDAP_INDIR_OPCODE:
|
2327 |
/* Output "r+s.m", or, if "s" is [pc+], "r+s" or
|
2328 |
"r-s". */
|
2329 |
tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp, |
2330 |
with_reg_prefix); |
2331 |
|
2332 |
if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15) |
2333 |
{ |
2334 |
long number;
|
2335 |
unsigned int nbytes; |
2336 |
|
2337 |
/* It's a value. Get its size. */
|
2338 |
int mode_size = 1 << ((prefix_insn >> 4) & 3); |
2339 |
|
2340 |
if (mode_size == 1) |
2341 |
nbytes = 2;
|
2342 |
else
|
2343 |
nbytes = mode_size; |
2344 |
|
2345 |
switch (nbytes)
|
2346 |
{ |
2347 |
case 1: |
2348 |
number = prefix_buffer[2];
|
2349 |
if (number > 127) |
2350 |
number -= 256;
|
2351 |
break;
|
2352 |
|
2353 |
case 2: |
2354 |
number = prefix_buffer[2] + prefix_buffer[3] * 256; |
2355 |
if (number > 32767) |
2356 |
number -= 65536;
|
2357 |
break;
|
2358 |
|
2359 |
case 4: |
2360 |
number |
2361 |
= prefix_buffer[2] + prefix_buffer[3] * 256 |
2362 |
+ prefix_buffer[4] * 65536 |
2363 |
+ prefix_buffer[5] * 0x1000000; |
2364 |
break;
|
2365 |
|
2366 |
default:
|
2367 |
strcpy (tp, "bug");
|
2368 |
tp += 3;
|
2369 |
number = 42;
|
2370 |
} |
2371 |
|
2372 |
info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; |
2373 |
info->target2 = (bfd_vma) number; |
2374 |
|
2375 |
/* If the size is dword, then assume it's an
|
2376 |
address. */
|
2377 |
if (nbytes == 4) |
2378 |
{ |
2379 |
/* Finish off and output previous formatted
|
2380 |
bytes. */
|
2381 |
*tp++ = '+';
|
2382 |
*tp = 0;
|
2383 |
tp = temp; |
2384 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2385 |
|
2386 |
(*info->print_address_func) ((bfd_vma) number, info); |
2387 |
} |
2388 |
else
|
2389 |
{ |
2390 |
if (number >= 0) |
2391 |
*tp++ = '+';
|
2392 |
tp = format_dec (number, tp, 1);
|
2393 |
} |
2394 |
} |
2395 |
else
|
2396 |
{ |
2397 |
/* Output "r+[R].m" or "r+[R+].m". */
|
2398 |
*tp++ = '+';
|
2399 |
*tp++ = '[';
|
2400 |
tp = format_reg (disdata, prefix_insn & 15, tp,
|
2401 |
with_reg_prefix); |
2402 |
if (prefix_insn & 0x400) |
2403 |
*tp++ = '+';
|
2404 |
*tp++ = ']';
|
2405 |
*tp++ = '.';
|
2406 |
*tp++ = mode_char[(prefix_insn >> 4) & 3]; |
2407 |
|
2408 |
info->flags |
2409 |
|= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG |
2410 |
| CRIS_DIS_FLAG_MEM_TARGET2_MEM |
2411 |
| CRIS_DIS_FLAG_MEM_TARGET_IS_REG |
2412 |
|
2413 |
| (((prefix_insn >> 4) == 2) |
2414 |
? 0
|
2415 |
: (((prefix_insn >> 4) & 3) == 1 |
2416 |
? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD |
2417 |
: CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE))); |
2418 |
} |
2419 |
break;
|
2420 |
|
2421 |
default:
|
2422 |
(*info->fprintf_func) (info->stream, "?prefix-bug");
|
2423 |
} |
2424 |
|
2425 |
/* To mark that the prefix is used, reset it. */
|
2426 |
prefix_opcodep = NULL;
|
2427 |
} |
2428 |
else
|
2429 |
{ |
2430 |
tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
|
2431 |
|
2432 |
info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG; |
2433 |
info->target = insn & 15;
|
2434 |
|
2435 |
if (insn & 0x400) |
2436 |
*tp++ = '+';
|
2437 |
} |
2438 |
*tp++ = ']';
|
2439 |
} |
2440 |
break;
|
2441 |
|
2442 |
case 'x': |
2443 |
tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
2444 |
*tp++ = '.';
|
2445 |
*tp++ = mode_char[(insn >> 4) & 3]; |
2446 |
break;
|
2447 |
|
2448 |
case 'I': |
2449 |
tp = format_dec (insn & 63, tp, 0); |
2450 |
break;
|
2451 |
|
2452 |
case 'b': |
2453 |
{ |
2454 |
int where = buffer[2] + buffer[3] * 256; |
2455 |
|
2456 |
if (where > 32767) |
2457 |
where -= 65536;
|
2458 |
|
2459 |
where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4); |
2460 |
|
2461 |
if (insn == BA_PC_INCR_OPCODE)
|
2462 |
info->insn_type = dis_branch; |
2463 |
else
|
2464 |
info->insn_type = dis_condbranch; |
2465 |
|
2466 |
info->target = (bfd_vma) where; |
2467 |
|
2468 |
*tp = 0;
|
2469 |
tp = temp; |
2470 |
(*info->fprintf_func) (info->stream, "%s%s ",
|
2471 |
temp, cris_cc_strings[insn >> 12]);
|
2472 |
|
2473 |
(*info->print_address_func) ((bfd_vma) where, info); |
2474 |
} |
2475 |
break;
|
2476 |
|
2477 |
case 'c': |
2478 |
tp = format_dec (insn & 31, tp, 0); |
2479 |
break;
|
2480 |
|
2481 |
case 'C': |
2482 |
tp = format_dec (insn & 15, tp, 0); |
2483 |
break;
|
2484 |
|
2485 |
case 'o': |
2486 |
{ |
2487 |
long offset = insn & 0xfe; |
2488 |
bfd_vma target; |
2489 |
|
2490 |
if (insn & 1) |
2491 |
offset |= ~0xff;
|
2492 |
|
2493 |
if (opcodep->match == BA_QUICK_OPCODE)
|
2494 |
info->insn_type = dis_branch; |
2495 |
else
|
2496 |
info->insn_type = dis_condbranch; |
2497 |
|
2498 |
target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset; |
2499 |
info->target = target; |
2500 |
*tp = 0;
|
2501 |
tp = temp; |
2502 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2503 |
(*info->print_address_func) (target, info); |
2504 |
} |
2505 |
break;
|
2506 |
|
2507 |
case 'Q': |
2508 |
case 'O': |
2509 |
{ |
2510 |
long number = buffer[0]; |
2511 |
|
2512 |
if (number > 127) |
2513 |
number = number - 256;
|
2514 |
|
2515 |
tp = format_dec (number, tp, 1);
|
2516 |
*tp++ = ',';
|
2517 |
tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix); |
2518 |
} |
2519 |
break;
|
2520 |
|
2521 |
case 'f': |
2522 |
tp = print_flags (disdata, insn, tp); |
2523 |
break;
|
2524 |
|
2525 |
case 'i': |
2526 |
tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1); |
2527 |
break;
|
2528 |
|
2529 |
case 'P': |
2530 |
{ |
2531 |
const struct cris_spec_reg *sregp |
2532 |
= spec_reg_info ((insn >> 12) & 15, disdata->distype); |
2533 |
|
2534 |
if (sregp->name == NULL) |
2535 |
/* Should have been caught as a non-match eariler. */
|
2536 |
*tp++ = '?';
|
2537 |
else
|
2538 |
{ |
2539 |
if (with_reg_prefix)
|
2540 |
*tp++ = REGISTER_PREFIX_CHAR; |
2541 |
strcpy (tp, sregp->name); |
2542 |
tp += strlen (tp); |
2543 |
} |
2544 |
} |
2545 |
break;
|
2546 |
|
2547 |
default:
|
2548 |
strcpy (tp, "???");
|
2549 |
tp += 3;
|
2550 |
} |
2551 |
} |
2552 |
|
2553 |
*tp = 0;
|
2554 |
|
2555 |
if (prefix_opcodep)
|
2556 |
(*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
|
2557 |
prefix_opcodep->name, prefix_opcodep->args); |
2558 |
|
2559 |
(*info->fprintf_func) (info->stream, "%s", temp);
|
2560 |
|
2561 |
/* Get info for matching case-tables, if we don't have any active.
|
2562 |
We assume that the last constant seen is used; either in the insn
|
2563 |
itself or in a "move.d const,rN, sub.d rN,rM"-like sequence. */
|
2564 |
if (TRACE_CASE && case_offset_counter == 0) |
2565 |
{ |
2566 |
if (CONST_STRNEQ (opcodep->name, "sub")) |
2567 |
case_offset = last_immediate; |
2568 |
|
2569 |
/* It could also be an "add", if there are negative case-values. */
|
2570 |
else if (CONST_STRNEQ (opcodep->name, "add")) |
2571 |
/* The first case is the negated operand to the add. */
|
2572 |
case_offset = -last_immediate; |
2573 |
|
2574 |
/* A bound insn will tell us the number of cases. */
|
2575 |
else if (CONST_STRNEQ (opcodep->name, "bound")) |
2576 |
no_of_case_offsets = last_immediate + 1;
|
2577 |
|
2578 |
/* A jump or jsr or branch breaks the chain of insns for a
|
2579 |
case-table, so assume default first-case again. */
|
2580 |
else if (info->insn_type == dis_jsr |
2581 |
|| info->insn_type == dis_branch |
2582 |
|| info->insn_type == dis_condbranch) |
2583 |
case_offset = 0;
|
2584 |
} |
2585 |
} |
2586 |
|
2587 |
|
2588 |
/* Print the CRIS instruction at address memaddr on stream. Returns
|
2589 |
length of the instruction, in bytes. Prefix register names with `$' if
|
2590 |
WITH_REG_PREFIX. */
|
2591 |
|
2592 |
static int |
2593 |
print_insn_cris_generic (bfd_vma memaddr, |
2594 |
disassemble_info *info, |
2595 |
bfd_boolean with_reg_prefix) |
2596 |
{ |
2597 |
int nbytes;
|
2598 |
unsigned int insn; |
2599 |
const struct cris_opcode *matchedp; |
2600 |
int advance = 0; |
2601 |
struct cris_disasm_data *disdata
|
2602 |
= (struct cris_disasm_data *) info->private_data;
|
2603 |
|
2604 |
/* No instruction will be disassembled as longer than this number of
|
2605 |
bytes; stacked prefixes will not be expanded. */
|
2606 |
unsigned char buffer[MAX_BYTES_PER_CRIS_INSN]; |
2607 |
unsigned char *bufp; |
2608 |
int status = 0; |
2609 |
bfd_vma addr; |
2610 |
|
2611 |
/* There will be an "out of range" error after the last instruction.
|
2612 |
Reading pairs of bytes in decreasing number, we hope that we will get
|
2613 |
at least the amount that we will consume.
|
2614 |
|
2615 |
If we can't get any data, or we do not get enough data, we print
|
2616 |
the error message. */
|
2617 |
|
2618 |
nbytes = info->buffer_length; |
2619 |
if (nbytes > MAX_BYTES_PER_CRIS_INSN)
|
2620 |
nbytes = MAX_BYTES_PER_CRIS_INSN; |
2621 |
status = (*info->read_memory_func) (memaddr, buffer, nbytes, info); |
2622 |
|
2623 |
/* If we did not get all we asked for, then clear the rest.
|
2624 |
Hopefully this makes a reproducible result in case of errors. */
|
2625 |
if (nbytes != MAX_BYTES_PER_CRIS_INSN)
|
2626 |
memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
|
2627 |
|
2628 |
addr = memaddr; |
2629 |
bufp = buffer; |
2630 |
|
2631 |
/* Set some defaults for the insn info. */
|
2632 |
info->insn_info_valid = 1;
|
2633 |
info->branch_delay_insns = 0;
|
2634 |
info->data_size = 0;
|
2635 |
info->insn_type = dis_nonbranch; |
2636 |
info->flags = 0;
|
2637 |
info->target = 0;
|
2638 |
info->target2 = 0;
|
2639 |
|
2640 |
/* If we got any data, disassemble it. */
|
2641 |
if (nbytes != 0) |
2642 |
{ |
2643 |
matchedp = NULL;
|
2644 |
|
2645 |
insn = bufp[0] + bufp[1] * 256; |
2646 |
|
2647 |
/* If we're in a case-table, don't disassemble the offsets. */
|
2648 |
if (TRACE_CASE && case_offset_counter != 0) |
2649 |
{ |
2650 |
info->insn_type = dis_noninsn; |
2651 |
advance += 2;
|
2652 |
|
2653 |
/* If to print data as offsets, then shortcut here. */
|
2654 |
(*info->fprintf_func) (info->stream, "case %ld%s: -> ",
|
2655 |
case_offset + no_of_case_offsets |
2656 |
- case_offset_counter, |
2657 |
case_offset_counter == 1 ? "/default" : |
2658 |
"");
|
2659 |
|
2660 |
(*info->print_address_func) ((bfd_vma) |
2661 |
((short) (insn)
|
2662 |
+ (long) (addr
|
2663 |
- (no_of_case_offsets |
2664 |
- case_offset_counter) |
2665 |
* 2)), info);
|
2666 |
case_offset_counter--; |
2667 |
|
2668 |
/* The default case start (without a "sub" or "add") must be
|
2669 |
zero. */
|
2670 |
if (case_offset_counter == 0) |
2671 |
case_offset = 0;
|
2672 |
} |
2673 |
else if (insn == 0) |
2674 |
{ |
2675 |
/* We're often called to disassemble zeroes. While this is a
|
2676 |
valid "bcc .+2" insn, it is also useless enough and enough
|
2677 |
of a nuiscance that we will just output "bcc .+2" for it
|
2678 |
and signal it as a noninsn. */
|
2679 |
(*info->fprintf_func) (info->stream, |
2680 |
disdata->distype == cris_dis_v32 |
2681 |
? "bcc ." : "bcc .+2"); |
2682 |
info->insn_type = dis_noninsn; |
2683 |
advance += 2;
|
2684 |
} |
2685 |
else
|
2686 |
{ |
2687 |
const struct cris_opcode *prefix_opcodep = NULL; |
2688 |
unsigned char *prefix_buffer = bufp; |
2689 |
unsigned int prefix_insn = insn; |
2690 |
int prefix_size = 0; |
2691 |
|
2692 |
matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata); |
2693 |
|
2694 |
/* Check if we're supposed to write out prefixes as address
|
2695 |
modes and if this was a prefix. */
|
2696 |
if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p') |
2697 |
{ |
2698 |
/* If it's a prefix, put it into the prefix vars and get the
|
2699 |
main insn. */
|
2700 |
prefix_size = bytes_to_skip (prefix_insn, matchedp, |
2701 |
disdata->distype, NULL);
|
2702 |
prefix_opcodep = matchedp; |
2703 |
|
2704 |
insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256; |
2705 |
matchedp = get_opcode_entry (insn, prefix_insn, disdata); |
2706 |
|
2707 |
if (matchedp != NULL) |
2708 |
{ |
2709 |
addr += prefix_size; |
2710 |
bufp += prefix_size; |
2711 |
advance += prefix_size; |
2712 |
} |
2713 |
else
|
2714 |
{ |
2715 |
/* The "main" insn wasn't valid, at least not when
|
2716 |
prefixed. Put back things enough to output the
|
2717 |
prefix insn only, as a normal insn. */
|
2718 |
matchedp = prefix_opcodep; |
2719 |
insn = prefix_insn; |
2720 |
prefix_opcodep = NULL;
|
2721 |
} |
2722 |
} |
2723 |
|
2724 |
if (matchedp == NULL) |
2725 |
{ |
2726 |
(*info->fprintf_func) (info->stream, "??0x%x", insn);
|
2727 |
advance += 2;
|
2728 |
|
2729 |
info->insn_type = dis_noninsn; |
2730 |
} |
2731 |
else
|
2732 |
{ |
2733 |
advance |
2734 |
+= bytes_to_skip (insn, matchedp, disdata->distype, |
2735 |
prefix_opcodep); |
2736 |
|
2737 |
/* The info_type and assorted fields will be set according
|
2738 |
to the operands. */
|
2739 |
print_with_operands (matchedp, insn, bufp, addr, info, |
2740 |
prefix_opcodep, prefix_insn, |
2741 |
prefix_buffer, with_reg_prefix); |
2742 |
} |
2743 |
} |
2744 |
} |
2745 |
else
|
2746 |
info->insn_type = dis_noninsn; |
2747 |
|
2748 |
/* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
|
2749 |
status when reading that much, and the insn decoding indicated a
|
2750 |
length exceeding what we read, there is an error. */
|
2751 |
if (status != 0 && (nbytes == 0 || advance > nbytes)) |
2752 |
{ |
2753 |
(*info->memory_error_func) (status, memaddr, info); |
2754 |
return -1; |
2755 |
} |
2756 |
|
2757 |
/* Max supported insn size with one folded prefix insn. */
|
2758 |
info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN; |
2759 |
|
2760 |
/* I would like to set this to a fixed value larger than the actual
|
2761 |
number of bytes to print in order to avoid spaces between bytes,
|
2762 |
but objdump.c (2.9.1) does not like that, so we print 16-bit
|
2763 |
chunks, which is the next choice. */
|
2764 |
info->bytes_per_chunk = 2;
|
2765 |
|
2766 |
/* Printing bytes in order of increasing addresses makes sense,
|
2767 |
especially on a little-endian target.
|
2768 |
This is completely the opposite of what you think; setting this to
|
2769 |
BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
|
2770 |
we want. */
|
2771 |
info->display_endian = BFD_ENDIAN_BIG; |
2772 |
|
2773 |
return advance;
|
2774 |
} |
2775 |
|
2776 |
/* Disassemble, prefixing register names with `$'. CRIS v0..v10. */
|
2777 |
#if 0
|
2778 |
static int
|
2779 |
print_insn_cris_with_register_prefix (bfd_vma vma,
|
2780 |
disassemble_info *info)
|
2781 |
{
|
2782 |
if (info->private_data == NULL
|
2783 |
&& !cris_parse_disassembler_options (info, cris_dis_v0_v10))
|
2784 |
return -1;
|
2785 |
return print_insn_cris_generic (vma, info, TRUE);
|
2786 |
}
|
2787 |
#endif
|
2788 |
/* Disassemble, prefixing register names with `$'. CRIS v32. */
|
2789 |
|
2790 |
static int |
2791 |
print_insn_crisv32_with_register_prefix (bfd_vma vma, |
2792 |
disassemble_info *info) |
2793 |
{ |
2794 |
if (info->private_data == NULL |
2795 |
&& !cris_parse_disassembler_options (info, cris_dis_v32)) |
2796 |
return -1; |
2797 |
return print_insn_cris_generic (vma, info, TRUE);
|
2798 |
} |
2799 |
|
2800 |
#if 0
|
2801 |
/* Disassemble, prefixing register names with `$'.
|
2802 |
Common v10 and v32 subset. */
|
2803 |
|
2804 |
static int
|
2805 |
print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
|
2806 |
disassemble_info *info)
|
2807 |
{
|
2808 |
if (info->private_data == NULL
|
2809 |
&& !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
|
2810 |
return -1;
|
2811 |
return print_insn_cris_generic (vma, info, TRUE);
|
2812 |
}
|
2813 |
|
2814 |
/* Disassemble, no prefixes on register names. CRIS v0..v10. */
|
2815 |
|
2816 |
static int
|
2817 |
print_insn_cris_without_register_prefix (bfd_vma vma,
|
2818 |
disassemble_info *info)
|
2819 |
{
|
2820 |
if (info->private_data == NULL
|
2821 |
&& !cris_parse_disassembler_options (info, cris_dis_v0_v10))
|
2822 |
return -1;
|
2823 |
return print_insn_cris_generic (vma, info, FALSE);
|
2824 |
}
|
2825 |
|
2826 |
/* Disassemble, no prefixes on register names. CRIS v32. */
|
2827 |
|
2828 |
static int
|
2829 |
print_insn_crisv32_without_register_prefix (bfd_vma vma,
|
2830 |
disassemble_info *info)
|
2831 |
{
|
2832 |
if (info->private_data == NULL
|
2833 |
&& !cris_parse_disassembler_options (info, cris_dis_v32))
|
2834 |
return -1;
|
2835 |
return print_insn_cris_generic (vma, info, FALSE);
|
2836 |
}
|
2837 |
|
2838 |
/* Disassemble, no prefixes on register names.
|
2839 |
Common v10 and v32 subset. */
|
2840 |
|
2841 |
static int
|
2842 |
print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
|
2843 |
disassemble_info *info)
|
2844 |
{
|
2845 |
if (info->private_data == NULL
|
2846 |
&& !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
|
2847 |
return -1;
|
2848 |
return print_insn_cris_generic (vma, info, FALSE);
|
2849 |
}
|
2850 |
#endif
|
2851 |
|
2852 |
int
|
2853 |
print_insn_crisv32 (bfd_vma vma, |
2854 |
disassemble_info *info) |
2855 |
{ |
2856 |
return print_insn_crisv32_with_register_prefix(vma, info);
|
2857 |
} |
2858 |
|
2859 |
/* Return a disassembler-function that prints registers with a `$' prefix,
|
2860 |
or one that prints registers without a prefix.
|
2861 |
FIXME: We should improve the solution to avoid the multitude of
|
2862 |
functions seen above. */
|
2863 |
#if 0
|
2864 |
disassembler_ftype
|
2865 |
cris_get_disassembler (bfd *abfd)
|
2866 |
{
|
2867 |
/* If there's no bfd in sight, we return what is valid as input in all
|
2868 |
contexts if fed back to the assembler: disassembly *with* register
|
2869 |
prefix. Unfortunately this will be totally wrong for v32. */
|
2870 |
if (abfd == NULL)
|
2871 |
return print_insn_cris_with_register_prefix;
|
2872 |
|
2873 |
if (bfd_get_symbol_leading_char (abfd) == 0)
|
2874 |
{
|
2875 |
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
2876 |
return print_insn_crisv32_with_register_prefix;
|
2877 |
if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
|
2878 |
return print_insn_crisv10_v32_with_register_prefix;
|
2879 |
|
2880 |
/* We default to v10. This may be specifically specified in the
|
2881 |
bfd mach, but is also the default setting. */
|
2882 |
return print_insn_cris_with_register_prefix;
|
2883 |
}
|
2884 |
|
2885 |
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
2886 |
return print_insn_crisv32_without_register_prefix;
|
2887 |
if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
|
2888 |
return print_insn_crisv10_v32_without_register_prefix;
|
2889 |
return print_insn_cris_without_register_prefix;
|
2890 |
}
|
2891 |
#endif
|
2892 |
/* Local variables:
|
2893 |
eval: (c-set-style "gnu")
|
2894 |
indent-tabs-mode: t
|
2895 |
End: */
|