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/* Disassembler code for CR16.
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/* Disassembler code for CR16.
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Copyright 2007 Free Software Foundation, Inc.
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Copyright 2007, 2008, 2009 Free Software Foundation, Inc.
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Contributed by M R Swami Reddy (MR.Swami.Reddy@nsc.com).
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Contributed by M R Swami Reddy (MR.Swami.Reddy@nsc.com).
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This file is part of GAS, GDB and the GNU binutils.
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This file is part of GAS, GDB and the GNU binutils.
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This program is free software; you can redistribute it and/or modify it
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This program is free software; you can redistribute it and/or modify it
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Line 305... |
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static unsigned long
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static unsigned long
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build_mask (void)
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build_mask (void)
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{
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{
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unsigned long mask = SBM (instruction->match_bits);
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unsigned long mask = SBM (instruction->match_bits);
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/* Adjust mask for bcond with 32-bit size instruction. */
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if ((IS_INSN_MNEMONIC("b") && instruction->size == 2))
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mask = 0xff0f0000;
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return mask;
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return mask;
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}
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}
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/* Search for a matching opcode. Return 1 for success, 0 for failure. */
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/* Search for a matching opcode. Return 1 for success, 0 for failure. */
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static int
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static int
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match_opcode (void)
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match_opcode (void)
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{
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{
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unsigned long mask;
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unsigned long mask;
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/* The instruction 'constant' opcode doewsn't exceed 32 bits. */
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/* The instruction 'constant' opcode doewsn't exceed 32 bits. */
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unsigned long doubleWord = words[1] + (words[0] << 16);
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unsigned long doubleWord = (words[1] + (words[0] << 16)) & 0xffffffff;
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/* Start searching from end of instruction table. */
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/* Start searching from end of instruction table. */
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instruction = &cr16_instruction[NUMOPCODES - 2];
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instruction = &cr16_instruction[NUMOPCODES - 2];
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/* Loop over instruction table until a full match is found. */
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/* Loop over instruction table until a full match is found. */
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while (instruction >= cr16_instruction)
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while (instruction >= cr16_instruction)
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{
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{
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mask = build_mask ();
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mask = build_mask ();
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/* Adjust mask for bcond with 32-bit size instruction */
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if ((IS_INSN_MNEMONIC("b") && instruction->size == 2))
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mask = 0xff0f0000;
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if ((doubleWord & mask) == BIN (instruction->match,
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if ((doubleWord & mask) == BIN (instruction->match,
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instruction->match_bits))
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instruction->match_bits))
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return 1;
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return 1;
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else
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else
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instruction--;
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instruction--;
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Line 676... |
a->constant = 2 * a->constant + 2;
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a->constant = 2 * a->constant + 2;
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if ((!IS_INSN_TYPE (CSTBIT_INS)) && (!IS_INSN_TYPE (LD_STOR_INS)))
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if ((!IS_INSN_TYPE (CSTBIT_INS)) && (!IS_INSN_TYPE (LD_STOR_INS)))
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(sign_flag) ? func (stream, "%s", "*-"): func (stream, "%s","*+");
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(sign_flag) ? func (stream, "%s", "*-"): func (stream, "%s","*+");
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/* PR 10173: Avoid printing the 0x prefix twice. */
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if (info->num_symbols > 0)
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func (stream, "%s", "0x");
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func (stream, "%s", "0x");
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number = ((relative ? memaddr : 0) +
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number = ((relative ? memaddr : 0) +
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(sign_flag ? ((- a->constant) & 0xffffffe) : a->constant));
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(sign_flag ? ((- a->constant) & 0xffffffe) : a->constant));
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(*info->print_address_func) ((number & ((1 << 24) - 1)), info);
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(*info->print_address_func) ((number & ((1 << 24) - 1)), info);
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