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diff --git a/arch/powerpc/xmon/ppc-dis.c b/arch/powerpc/xmon/ppc-dis.c
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+/* ppc-dis.c -- Disassemble PowerPC instructions
+ Copyright (C) 1994-2016 Free Software Foundation, Inc.
+ Written by Ian Lance Taylor, Cygnus Support
+
+This file is part of GDB, GAS, and the GNU binutils.
+
+GDB, GAS, and the GNU binutils are free software; you can redistribute
+them and/or modify them under the terms of the GNU General Public
+License as published by the Free Software Foundation; either version
+2, or (at your option) any later version.
+
+GDB, GAS, and the GNU binutils are distributed in the hope that they
+will be useful, but WITHOUT ANY WARRANTY; without even the implied
+warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this file; see the file COPYING. If not, write to the Free
+Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <asm/cputable.h>
+#include <asm/cpu_has_feature.h>
+#include "nonstdio.h"
+#include "ansidecl.h"
+#include "ppc.h"
+#include "dis-asm.h"
+
+/* This file provides several disassembler functions, all of which use
+ the disassembler interface defined in dis-asm.h. Several functions
+ are provided because this file handles disassembly for the PowerPC
+ in both big and little endian mode and also for the POWER (RS/6000)
+ chip. */
+
+/* Extract the operand value from the PowerPC or POWER instruction. */
+
+static long
+operand_value_powerpc (const struct powerpc_operand *operand,
+ unsigned long insn, ppc_cpu_t dialect)
+{
+ long value;
+ int invalid;
+ /* Extract the value from the instruction. */
+ if (operand->extract)
+ value = (*operand->extract) (insn, dialect, &invalid);
+ else
+ {
+ if (operand->shift >= 0)
+ value = (insn >> operand->shift) & operand->bitm;
+ else
+ value = (insn << -operand->shift) & operand->bitm;
+ if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
+ {
+ /* BITM is always some number of zeros followed by some
+ number of ones, followed by some number of zeros. */
+ unsigned long top = operand->bitm;
+ /* top & -top gives the rightmost 1 bit, so this
+ fills in any trailing zeros. */
+ top |= (top & -top) - 1;
+ top &= ~(top >> 1);
+ value = (value ^ top) - top;
+ }
+ }
+
+ return value;
+}
+
+/* Determine whether the optional operand(s) should be printed. */
+
+static int
+skip_optional_operands (const unsigned char *opindex,
+ unsigned long insn, ppc_cpu_t dialect)
+{
+ const struct powerpc_operand *operand;
+
+ for (; *opindex != 0; opindex++)
+ {
+ operand = &powerpc_operands[*opindex];
+ if ((operand->flags & PPC_OPERAND_NEXT) != 0
+ || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
+ && operand_value_powerpc (operand, insn, dialect) !=
+ ppc_optional_operand_value (operand)))
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Find a match for INSN in the opcode table, given machine DIALECT.
+ A DIALECT of -1 is special, matching all machine opcode variations. */
+
+static const struct powerpc_opcode *
+lookup_powerpc (unsigned long insn, ppc_cpu_t dialect)
+{
+ const struct powerpc_opcode *opcode;
+ const struct powerpc_opcode *opcode_end;
+
+ opcode_end = powerpc_opcodes + powerpc_num_opcodes;
+ /* Find the first match in the opcode table for this major opcode. */
+ for (opcode = powerpc_opcodes; opcode < opcode_end; ++opcode)
+ {
+ const unsigned char *opindex;
+ const struct powerpc_operand *operand;
+ int invalid;
+
+ if ((insn & opcode->mask) != opcode->opcode
+ || (dialect != (ppc_cpu_t) -1
+ && ((opcode->flags & dialect) == 0
+ || (opcode->deprecated & dialect) != 0)))
+ continue;
+
+ /* Check validity of operands. */
+ invalid = 0;
+ for (opindex = opcode->operands; *opindex != 0; opindex++)
+ {
+ operand = powerpc_operands + *opindex;
+ if (operand->extract)
+ (*operand->extract) (insn, dialect, &invalid);
+ }
+ if (invalid)
+ continue;
+
+ return opcode;
+ }
+
+ return NULL;
+}
+
+/* Print a PowerPC or POWER instruction. */
+
+int print_insn_powerpc (unsigned long insn, unsigned long memaddr)
+{
+ const struct powerpc_opcode *opcode;
+ bool insn_is_short;
+ ppc_cpu_t dialect;
+
+ dialect = PPC_OPCODE_PPC | PPC_OPCODE_COMMON
+ | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_ALTIVEC;
+
+ if (cpu_has_feature(CPU_FTRS_POWER5))
+ dialect |= PPC_OPCODE_POWER5;
+
+ if (cpu_has_feature(CPU_FTRS_CELL))
+ dialect |= (PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC);
+
+ if (cpu_has_feature(CPU_FTRS_POWER6))
+ dialect |= (PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_ALTIVEC);
+
+ if (cpu_has_feature(CPU_FTRS_POWER7))
+ dialect |= (PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7
+ | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX);
+
+ if (cpu_has_feature(CPU_FTRS_POWER8))
+ dialect |= (PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7
+ | PPC_OPCODE_POWER8 | PPC_OPCODE_HTM
+ | PPC_OPCODE_ALTIVEC | PPC_OPCODE_ALTIVEC2 | PPC_OPCODE_VSX);
+
+ if (cpu_has_feature(CPU_FTRS_POWER9))
+ dialect |= (PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7
+ | PPC_OPCODE_POWER8 | PPC_OPCODE_POWER9 | PPC_OPCODE_HTM
+ | PPC_OPCODE_ALTIVEC | PPC_OPCODE_ALTIVEC2
+ | PPC_OPCODE_VSX | PPC_OPCODE_VSX3);
+
+ /* Get the major opcode of the insn. */
+ opcode = NULL;
+ insn_is_short = false;
+
+ if (opcode == NULL)
+ opcode = lookup_powerpc (insn, dialect);
+ if (opcode == NULL && (dialect & PPC_OPCODE_ANY) != 0)
+ opcode = lookup_powerpc (insn, (ppc_cpu_t) -1);
+
+ if (opcode != NULL)
+ {
+ const unsigned char *opindex;
+ const struct powerpc_operand *operand;
+ int need_comma;
+ int need_paren;
+ int skip_optional;
+
+ if (opcode->operands[0] != 0)
+ printf("%-7s ", opcode->name);
+ else
+ printf("%s", opcode->name);
+
+ if (insn_is_short)
+ /* The operands will be fetched out of the 16-bit instruction. */
+ insn >>= 16;
+
+ /* Now extract and print the operands. */
+ need_comma = 0;
+ need_paren = 0;
+ skip_optional = -1;
+ for (opindex = opcode->operands; *opindex != 0; opindex++)
+ {
+ long value;
+
+ operand = powerpc_operands + *opindex;
+
+ /* Operands that are marked FAKE are simply ignored. We
+ already made sure that the extract function considered
+ the instruction to be valid. */
+ if ((operand->flags & PPC_OPERAND_FAKE) != 0)
+ continue;
+
+ /* If all of the optional operands have the value zero,
+ then don't print any of them. */
+ if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
+ {
+ if (skip_optional < 0)
+ skip_optional = skip_optional_operands (opindex, insn,
+ dialect);
+ if (skip_optional)
+ continue;
+ }
+
+ value = operand_value_powerpc (operand, insn, dialect);
+
+ if (need_comma)
+ {
+ printf(",");
+ need_comma = 0;
+ }
+
+ /* Print the operand as directed by the flags. */
+ if ((operand->flags & PPC_OPERAND_GPR) != 0
+ || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
+ printf("r%ld", value);
+ else if ((operand->flags & PPC_OPERAND_FPR) != 0)
+ printf("f%ld", value);
+ else if ((operand->flags & PPC_OPERAND_VR) != 0)
+ printf("v%ld", value);
+ else if ((operand->flags & PPC_OPERAND_VSR) != 0)
+ printf("vs%ld", value);
+ else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
+ print_address(memaddr + value);
+ else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
+ print_address(value & 0xffffffff);
+ else if ((operand->flags & PPC_OPERAND_FSL) != 0)
+ printf("fsl%ld", value);
+ else if ((operand->flags & PPC_OPERAND_FCR) != 0)
+ printf("fcr%ld", value);
+ else if ((operand->flags & PPC_OPERAND_UDI) != 0)
+ printf("%ld", value);
+ else if ((operand->flags & PPC_OPERAND_CR_REG) != 0
+ && (((dialect & PPC_OPCODE_PPC) != 0)
+ || ((dialect & PPC_OPCODE_VLE) != 0)))
+ printf("cr%ld", value);
+ else if (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
+ && (((dialect & PPC_OPCODE_PPC) != 0)
+ || ((dialect & PPC_OPCODE_VLE) != 0)))
+ {
+ static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
+ int cr;
+ int cc;
+
+ cr = value >> 2;
+ if (cr != 0)
+ printf("4*cr%d+", cr);
+ cc = value & 3;
+ printf("%s", cbnames[cc]);
+ }
+ else
+ printf("%d", (int) value);
+
+ if (need_paren)
+ {
+ printf(")");
+ need_paren = 0;
+ }
+
+ if ((operand->flags & PPC_OPERAND_PARENS) == 0)
+ need_comma = 1;
+ else
+ {
+ printf("(");
+ need_paren = 1;
+ }
+ }
+
+ /* We have found and printed an instruction.
+ If it was a short VLE instruction we have more to do. */
+ if (insn_is_short)
+ {
+ memaddr += 2;
+ return 2;
+ }
+ else
+ /* Otherwise, return. */
+ return 4;
+ }
+
+ /* We could not find a match. */
+ printf(".long 0x%lx", insn);
+
+ return 4;
+}
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