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f41078422a
Bit manipulation instructions which are not normally generated by the assembler, should nevertheless be decoded by the disassembler. opcodes/ * s12z-dis.c: BM_RESERVED1 to behave like BM_OPR_REG, and BM_RESERVED0 like BM_REG_IMM.
2674 lines
68 KiB
C
2674 lines
68 KiB
C
/* s12z-dis.c -- Freescale S12Z disassembly
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Copyright (C) 2018 Free Software Foundation, Inc.
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This file is part of the GNU opcodes library.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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It 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
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <assert.h>
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#include "opcode/s12z.h"
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#include "bfd.h"
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#include "dis-asm.h"
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#include "disassemble.h"
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static int
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read_memory (bfd_vma memaddr, bfd_byte* buffer, int size,
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struct disassemble_info* info)
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{
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int status = (*info->read_memory_func) (memaddr, buffer, size, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return -1;
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}
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return 0;
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}
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typedef int (* insn_bytes_f) (bfd_vma memaddr,
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struct disassemble_info* info);
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typedef void (*operands_f) (bfd_vma memaddr, struct disassemble_info* info);
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enum OPR_MODE
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{
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OPR_IMMe4,
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OPR_REG,
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OPR_OFXYS,
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OPR_XY_PRE_INC,
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OPR_XY_POST_INC,
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OPR_XY_PRE_DEC,
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OPR_XY_POST_DEC,
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OPR_S_PRE_DEC,
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OPR_S_POST_INC,
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OPR_REG_DIRECT,
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OPR_REG_INDIRECT,
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OPR_IDX_DIRECT,
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OPR_IDX_INDIRECT,
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OPR_EXT1,
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OPR_IDX2_REG,
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OPR_IDX3_DIRECT,
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OPR_IDX3_INDIRECT,
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OPR_EXT18,
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OPR_IDX3_DIRECT_REG,
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OPR_EXT3_DIRECT,
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OPR_EXT3_INDIRECT
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};
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struct opr_pb
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{
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uint8_t mask;
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uint8_t value;
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int n_operands;
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enum OPR_MODE mode;
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};
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static const struct opr_pb opr_pb[] = {
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{0xF0, 0x70, 1, OPR_IMMe4},
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{0xF8, 0xB8, 1, OPR_REG},
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{0xC0, 0x40, 1, OPR_OFXYS},
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{0xEF, 0xE3, 1, OPR_XY_PRE_INC},
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{0xEF, 0xE7, 1, OPR_XY_POST_INC},
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{0xEF, 0xC3, 1, OPR_XY_PRE_DEC},
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{0xEF, 0xC7, 1, OPR_XY_POST_DEC},
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{0xFF, 0xFB, 1, OPR_S_PRE_DEC},
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{0xFF, 0xFF, 1, OPR_S_POST_INC},
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{0xC8, 0x88, 1, OPR_REG_DIRECT},
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{0xE8, 0xC8, 1, OPR_REG_INDIRECT},
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{0xCE, 0xC0, 2, OPR_IDX_DIRECT},
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{0xCE, 0xC4, 2, OPR_IDX_INDIRECT},
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{0xC0, 0x00, 2, OPR_EXT1},
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{0xC8, 0x80, 3, OPR_IDX2_REG},
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{0xFA, 0xF8, 3, OPR_EXT18},
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{0xCF, 0xC2, 4, OPR_IDX3_DIRECT},
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{0xCF, 0xC6, 4, OPR_IDX3_INDIRECT},
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{0xF8, 0xE8, 4, OPR_IDX3_DIRECT_REG},
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{0xFF, 0xFA, 4, OPR_EXT3_DIRECT},
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{0xFF, 0xFE, 4, OPR_EXT3_INDIRECT},
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};
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/* Return the number of bytes in a OPR operand, including the XB postbyte.
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It does not include any preceeding opcodes. */
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static int
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opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
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{
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bfd_byte xb;
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int status = read_memory (memaddr, &xb, 1, info);
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if (status < 0)
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return status;
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size_t i;
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for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i)
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{
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const struct opr_pb *pb = opr_pb + i;
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if ((xb & pb->mask) == pb->value)
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{
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return pb->n_operands;
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}
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}
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return 1;
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}
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static int
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opr_n_bytes_p1 (bfd_vma memaddr, struct disassemble_info* info)
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{
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return 1 + opr_n_bytes (memaddr, info);
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}
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static int
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opr_n_bytes2 (bfd_vma memaddr, struct disassemble_info* info)
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{
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int s = opr_n_bytes (memaddr, info);
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s += opr_n_bytes (memaddr + s, info);
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return s + 1;
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}
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enum BB_MODE
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{
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BB_REG_REG_REG,
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BB_REG_REG_IMM,
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BB_REG_OPR_REG,
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BB_OPR_REG_REG,
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BB_REG_OPR_IMM,
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BB_OPR_REG_IMM
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};
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struct opr_bb
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{
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uint8_t mask;
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uint8_t value;
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int n_operands;
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bool opr;
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enum BB_MODE mode;
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};
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static const struct opr_bb bb_modes[] =
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{
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{0x60, 0x00, 2, false, BB_REG_REG_REG},
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{0x60, 0x20, 3, false, BB_REG_REG_IMM},
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{0x70, 0x40, 2, true, BB_REG_OPR_REG},
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{0x70, 0x50, 2, true, BB_OPR_REG_REG},
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{0x70, 0x60, 3, true, BB_REG_OPR_IMM},
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{0x70, 0x70, 3, true, BB_OPR_REG_IMM}
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};
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static int
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bfextins_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
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{
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bfd_byte bb;
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int status = read_memory (memaddr, &bb, 1, info);
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if (status < 0)
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return status;
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size_t i;
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const struct opr_bb *bbs = 0;
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for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i)
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{
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bbs = bb_modes + i;
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if ((bb & bbs->mask) == bbs->value)
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{
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break;
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}
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}
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int n = bbs->n_operands;
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if (bbs->opr)
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n += opr_n_bytes (memaddr + n - 1, info);
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return n;
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}
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static int
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single (bfd_vma memaddr ATTRIBUTE_UNUSED,
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struct disassemble_info* info ATTRIBUTE_UNUSED)
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{
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return 1;
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}
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static int
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two (bfd_vma memaddr ATTRIBUTE_UNUSED,
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struct disassemble_info* info ATTRIBUTE_UNUSED)
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{
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return 2;
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}
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static int
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three (bfd_vma memaddr ATTRIBUTE_UNUSED,
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struct disassemble_info* info ATTRIBUTE_UNUSED)
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{
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return 3;
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}
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static int
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four (bfd_vma memaddr ATTRIBUTE_UNUSED,
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struct disassemble_info* info ATTRIBUTE_UNUSED)
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{
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return 4;
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}
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static int
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five (bfd_vma memaddr ATTRIBUTE_UNUSED,
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struct disassemble_info* info ATTRIBUTE_UNUSED)
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{
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return 5;
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}
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static int
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pcrel_15bit (bfd_vma memaddr, struct disassemble_info* info)
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{
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bfd_byte byte;
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int status = read_memory (memaddr, &byte, 1, info);
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if (status < 0)
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return status;
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return (byte & 0x80) ? 3 : 2;
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}
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static void
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operand_separator (struct disassemble_info *info)
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{
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if ((info->flags & 0x2))
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{
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(*info->fprintf_func) (info->stream, ", ");
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}
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else
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{
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(*info->fprintf_func) (info->stream, " ");
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}
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info->flags |= 0x2;
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}
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static void
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imm1 (bfd_vma memaddr, struct disassemble_info* info)
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{
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bfd_byte byte;
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int status = read_memory (memaddr, &byte, 1, info);
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if (status < 0)
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return;
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operand_separator (info);
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(*info->fprintf_func) (info->stream, "#%d", byte);
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}
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static void
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trap_decode (bfd_vma memaddr, struct disassemble_info* info)
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{
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imm1 (memaddr - 1, info);
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}
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const struct reg registers[S12Z_N_REGISTERS] =
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{
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{"d2", 2},
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{"d3", 2},
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{"d4", 2},
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{"d5", 2},
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{"d0", 1},
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{"d1", 1},
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{"d6", 4},
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{"d7", 4},
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{"x", 3},
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{"y", 3},
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{"s", 3},
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{"p", 3},
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{"cch", 1},
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{"ccl", 1},
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{"ccw", 2}
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};
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static char *
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xys_from_postbyte (uint8_t postbyte)
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{
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char *reg = "?";
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switch ((postbyte & 0x30) >> 4)
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{
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case 0:
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reg = "x";
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break;
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case 1:
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reg = "y";
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break;
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case 2:
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reg = "s";
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break;
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default:
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reg = "?";
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break;
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}
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return reg;
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}
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static char *
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xysp_from_postbyte (uint8_t postbyte)
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{
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char *reg = "?";
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switch ((postbyte & 0x30) >> 4)
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{
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case 0:
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reg = "x";
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break;
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case 1:
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reg = "y";
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break;
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case 2:
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reg = "s";
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break;
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default:
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reg = "p";
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break;
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}
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return reg;
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}
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/* Render the symbol name whose value is ADDR or the adddress itself if there is
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no symbol. */
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static void
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decode_possible_symbol (bfd_vma addr, struct disassemble_info *info)
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{
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if (!info->symbol_at_address_func (addr, info))
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{
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(*info->fprintf_func) (info->stream, "%" BFD_VMA_FMT "d", addr);
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}
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else
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{
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asymbol *sym = NULL;
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int j;
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for (j = 0; j < info->symtab_size; ++j)
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{
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sym = info->symtab[j];
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if (bfd_asymbol_value (sym) == addr)
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{
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break;
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}
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}
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if (j < info->symtab_size)
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(*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym));
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}
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}
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static void ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info);
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static void
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ext24_decode (bfd_vma memaddr, struct disassemble_info* info)
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{
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uint8_t buffer[3];
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int status = read_memory (memaddr, buffer, 3, info);
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if (status < 0)
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return;
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int i;
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uint32_t addr = 0;
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for (i = 0; i < 3; ++i)
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{
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addr <<= 8;
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addr |= buffer[i];
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}
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operand_separator (info);
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decode_possible_symbol (addr, info);
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}
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static uint32_t
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decode_signed_value (bfd_vma memaddr, struct disassemble_info* info, short size)
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{
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assert (size >0);
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assert (size <= 4);
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bfd_byte buffer[4];
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if (0 > read_memory (memaddr, buffer, size, info))
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{
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return 0;
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}
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int i;
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uint32_t value = 0;
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for (i = 0; i < size; ++i)
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{
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value |= buffer[i] << (8 * (size - i - 1));
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}
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if (buffer[0] & 0x80)
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{
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/* Deal with negative values */
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value -= 0x1UL << (size * 8);
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}
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return value;
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}
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static void
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opr_decode (bfd_vma memaddr, struct disassemble_info* info)
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{
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bfd_byte postbyte;
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int status = read_memory (memaddr, &postbyte, 1, info);
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if (status < 0)
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return;
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enum OPR_MODE mode = -1;
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size_t i;
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for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i)
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{
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const struct opr_pb *pb = opr_pb + i;
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if ((postbyte & pb->mask) == pb->value)
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{
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mode = pb->mode;
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break;
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}
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}
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operand_separator (info);
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switch (mode)
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{
|
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case OPR_IMMe4:
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{
|
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int n;
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uint8_t x = (postbyte & 0x0F);
|
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if (x == 0)
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n = -1;
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else
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n = x;
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(*info->fprintf_func) (info->stream, "#%d", n);
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break;
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}
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case OPR_REG:
|
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{
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uint8_t x = (postbyte & 0x07);
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(*info->fprintf_func) (info->stream, "%s", registers[x].name);
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break;
|
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}
|
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case OPR_OFXYS:
|
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{
|
||
const char *reg = xys_from_postbyte (postbyte);
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(*info->fprintf_func) (info->stream, "(%d,%s)", postbyte & 0x0F, reg);
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break;
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}
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case OPR_REG_DIRECT:
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{
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(*info->fprintf_func) (info->stream, "(%s,%s)", registers[postbyte & 0x07].name,
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xys_from_postbyte (postbyte));
|
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break;
|
||
}
|
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case OPR_REG_INDIRECT:
|
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{
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(*info->fprintf_func) (info->stream, "[%s,%s]", registers[postbyte & 0x07].name,
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(postbyte & 0x10) ? "y": "x");
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break;
|
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}
|
||
|
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case OPR_IDX_INDIRECT:
|
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{
|
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uint8_t x1;
|
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read_memory (memaddr + 1, &x1, 1, info);
|
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int idx = x1;
|
||
|
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if (postbyte & 0x01)
|
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{
|
||
/* Deal with negative values */
|
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idx -= 0x1UL << 8;
|
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}
|
||
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||
(*info->fprintf_func) (info->stream, "[%d,%s]", idx,
|
||
xysp_from_postbyte (postbyte));
|
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break;
|
||
}
|
||
|
||
case OPR_IDX3_DIRECT:
|
||
{
|
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uint8_t x[3];
|
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read_memory (memaddr + 1, x, 3, info);
|
||
int idx = x[0] << 16 | x[1] << 8 | x[2];
|
||
|
||
if (x[0] & 0x80)
|
||
{
|
||
/* Deal with negative values */
|
||
idx -= 0x1UL << 24;
|
||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "(%d,%s)", idx,
|
||
xysp_from_postbyte (postbyte));
|
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break;
|
||
}
|
||
|
||
case OPR_IDX3_DIRECT_REG:
|
||
{
|
||
uint8_t x[3];
|
||
read_memory (memaddr + 1, x, 3, info);
|
||
int idx = x[0] << 16 | x[1] << 8 | x[2];
|
||
|
||
if (x[0] & 0x80)
|
||
{
|
||
/* Deal with negative values */
|
||
idx -= 0x1UL << 24;
|
||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "(%d,%s)", idx,
|
||
registers[postbyte & 0x07].name);
|
||
break;
|
||
}
|
||
|
||
case OPR_IDX3_INDIRECT:
|
||
{
|
||
uint8_t x[3];
|
||
read_memory (memaddr + 1, x, 3, info);
|
||
int idx = x[0] << 16 | x[1] << 8 | x[2];
|
||
|
||
if (x[0] & 0x80)
|
||
{
|
||
/* Deal with negative values */
|
||
idx -= 0x1UL << 24;
|
||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "[%d,%s]", idx,
|
||
xysp_from_postbyte (postbyte));
|
||
break;
|
||
}
|
||
|
||
case OPR_IDX_DIRECT:
|
||
{
|
||
uint8_t x1;
|
||
read_memory (memaddr + 1, &x1, 1, info);
|
||
int idx = x1;
|
||
|
||
if (postbyte & 0x01)
|
||
{
|
||
/* Deal with negative values */
|
||
idx -= 0x1UL << 8;
|
||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "(%d,%s)", idx,
|
||
xysp_from_postbyte (postbyte));
|
||
break;
|
||
}
|
||
|
||
case OPR_IDX2_REG:
|
||
{
|
||
uint8_t x[2];
|
||
read_memory (memaddr + 1, x, 2, info);
|
||
uint32_t offset = x[1] | x[0] << 8 ;
|
||
offset |= (postbyte & 0x30) << 12;
|
||
|
||
(*info->fprintf_func) (info->stream, "(%d,%s)", offset,
|
||
registers[postbyte & 0x07].name);
|
||
break;
|
||
}
|
||
|
||
case OPR_XY_PRE_INC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(+%s)",
|
||
(postbyte & 0x10) ? "y": "x");
|
||
|
||
break;
|
||
}
|
||
case OPR_XY_POST_INC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(%s+)",
|
||
(postbyte & 0x10) ? "y": "x");
|
||
|
||
break;
|
||
}
|
||
case OPR_XY_PRE_DEC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(-%s)",
|
||
(postbyte & 0x10) ? "y": "x");
|
||
|
||
break;
|
||
}
|
||
case OPR_XY_POST_DEC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(%s-)",
|
||
(postbyte & 0x10) ? "y": "x");
|
||
|
||
break;
|
||
}
|
||
case OPR_S_PRE_DEC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(-s)");
|
||
break;
|
||
}
|
||
case OPR_S_POST_INC:
|
||
{
|
||
(*info->fprintf_func) (info->stream, "(s+)");
|
||
break;
|
||
}
|
||
|
||
case OPR_EXT18:
|
||
{
|
||
const size_t size = 2;
|
||
bfd_byte buffer[4];
|
||
status = read_memory (memaddr + 1, buffer, size, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
uint32_t ext18 = 0;
|
||
for (i = 0; i < size; ++i)
|
||
{
|
||
ext18 <<= 8;
|
||
ext18 |= buffer[i];
|
||
}
|
||
|
||
ext18 |= (postbyte & 0x01) << 16;
|
||
ext18 |= (postbyte & 0x04) << 15;
|
||
|
||
decode_possible_symbol (ext18, info);
|
||
break;
|
||
}
|
||
|
||
case OPR_EXT1:
|
||
{
|
||
uint8_t x1 = 0;
|
||
read_memory (memaddr + 1, &x1, 1, info);
|
||
int16_t addr;
|
||
addr = x1;
|
||
addr |= (postbyte & 0x3f) << 8;
|
||
|
||
decode_possible_symbol (addr, info);
|
||
break;
|
||
}
|
||
|
||
case OPR_EXT3_DIRECT:
|
||
{
|
||
const size_t size = 3;
|
||
bfd_byte buffer[4];
|
||
status = read_memory (memaddr + 1, buffer, size, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
uint32_t ext24 = 0;
|
||
for (i = 0; i < size; ++i)
|
||
{
|
||
ext24 |= buffer[i] << (8 * (size - i - 1));
|
||
}
|
||
|
||
decode_possible_symbol (ext24, info);
|
||
break;
|
||
}
|
||
|
||
case OPR_EXT3_INDIRECT:
|
||
{
|
||
const size_t size = 3;
|
||
bfd_byte buffer[4];
|
||
status = read_memory (memaddr + 1, buffer, size, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
uint32_t ext24 = 0;
|
||
for (i = 0; i < size; ++i)
|
||
{
|
||
ext24 |= buffer[i] << (8 * (size - i - 1));
|
||
}
|
||
|
||
(*info->fprintf_func) (info->stream, "[%d]", ext24);
|
||
|
||
break;
|
||
}
|
||
|
||
default:
|
||
(*info->fprintf_func) (info->stream, "Unknown OPR mode #0x%x (%d)", postbyte, mode);
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
opr_decode2 (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
int n = opr_n_bytes (memaddr, info);
|
||
opr_decode (memaddr, info);
|
||
opr_decode (memaddr + n, info);
|
||
}
|
||
|
||
static void
|
||
imm1234 (bfd_vma memaddr, struct disassemble_info* info, int base)
|
||
{
|
||
bfd_byte opcode;
|
||
int status = read_memory (memaddr - 1, &opcode, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
opcode -= base;
|
||
|
||
int size = registers[opcode & 0xF].bytes;
|
||
|
||
uint32_t imm = decode_signed_value (memaddr, info, size);
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
}
|
||
|
||
|
||
/* Special case of LD and CMP with register S and IMM operand */
|
||
static void
|
||
reg_s_imm (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "s");
|
||
|
||
uint32_t imm = decode_signed_value (memaddr, info, 3);
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
}
|
||
|
||
/* Special case of LD, CMP and ST with register S and OPR operand */
|
||
static void
|
||
reg_s_opr (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "s");
|
||
|
||
opr_decode (memaddr, info);
|
||
}
|
||
|
||
static void
|
||
imm1234_8base (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
imm1234 (memaddr, info, 8);
|
||
}
|
||
|
||
static void
|
||
imm1234_0base (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
imm1234 (memaddr, info, 0);
|
||
}
|
||
|
||
static void
|
||
tfr (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s, %s",
|
||
registers[byte >> 4].name,
|
||
registers[byte & 0xF].name);
|
||
}
|
||
|
||
|
||
static void
|
||
reg (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[byte & 0x07].name);
|
||
}
|
||
|
||
static void
|
||
reg_xy (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", (byte & 0x01) ? "y" : "x");
|
||
}
|
||
|
||
static void
|
||
lea_reg_xys_opr (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
char *reg_xys = NULL;
|
||
switch (byte & 0x03)
|
||
{
|
||
case 0x00:
|
||
reg_xys = "x";
|
||
break;
|
||
case 0x01:
|
||
reg_xys = "y";
|
||
break;
|
||
case 0x02:
|
||
reg_xys = "s";
|
||
break;
|
||
}
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", reg_xys);
|
||
opr_decode (memaddr, info);
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
lea_reg_xys (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
char *reg_xys = NULL;
|
||
switch (byte & 0x03)
|
||
{
|
||
case 0x00:
|
||
reg_xys = "x";
|
||
break;
|
||
case 0x01:
|
||
reg_xys = "y";
|
||
break;
|
||
case 0x02:
|
||
reg_xys = "s";
|
||
break;
|
||
}
|
||
|
||
status = read_memory (memaddr, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
int8_t v = byte;
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s, (%d,%s)", reg_xys, v, reg_xys);
|
||
}
|
||
|
||
|
||
/* PC Relative offsets of size 15 or 7 bits */
|
||
static void
|
||
rel_15_7 (bfd_vma memaddr, struct disassemble_info* info, int offset)
|
||
{
|
||
bfd_byte upper;
|
||
int status = read_memory (memaddr, &upper, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
bool rel_size = (upper & 0x80);
|
||
|
||
int16_t addr = upper;
|
||
if (rel_size)
|
||
{
|
||
/* 15 bits. Get the next byte */
|
||
bfd_byte lower;
|
||
status = read_memory (memaddr + 1, &lower, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
addr <<= 8;
|
||
addr |= lower;
|
||
addr &= 0x7FFF;
|
||
|
||
bool negative = (addr & 0x4000);
|
||
addr &= 0x3FFF;
|
||
if (negative)
|
||
addr = addr - 0x4000;
|
||
}
|
||
else
|
||
{
|
||
/* 7 bits. */
|
||
bool negative = (addr & 0x40);
|
||
addr &= 0x3F;
|
||
if (negative)
|
||
addr = addr - 0x40;
|
||
}
|
||
|
||
operand_separator (info);
|
||
if (!info->symbol_at_address_func (addr + memaddr - offset, info))
|
||
{
|
||
(*info->fprintf_func) (info->stream, "*%+d", addr);
|
||
}
|
||
else
|
||
{
|
||
asymbol *sym = NULL;
|
||
int i;
|
||
for (i = 0; i < info->symtab_size; ++i)
|
||
{
|
||
sym = info->symtab[i];
|
||
if (bfd_asymbol_value (sym) == addr + memaddr - offset)
|
||
{
|
||
break;
|
||
}
|
||
}
|
||
if (i < info->symtab_size)
|
||
(*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym));
|
||
}
|
||
}
|
||
|
||
|
||
/* PC Relative offsets of size 15 or 7 bits */
|
||
static void
|
||
decode_rel_15_7 (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
rel_15_7 (memaddr, info, 1);
|
||
}
|
||
|
||
struct opcode
|
||
{
|
||
const char *mnemonic;
|
||
insn_bytes_f insn_bytes;
|
||
operands_f operands;
|
||
operands_f operands2;
|
||
};
|
||
|
||
static int shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static int mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static int loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static void mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info);
|
||
static void bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info);
|
||
static int bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static int mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static void mul_decode (bfd_vma memaddr, struct disassemble_info* info);
|
||
static int bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
|
||
static void bm_decode (bfd_vma memaddr, struct disassemble_info* info);
|
||
|
||
static void
|
||
cmp_xy (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "x, y");
|
||
}
|
||
|
||
static void
|
||
sub_d6_x_y (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "d6, x, y");
|
||
}
|
||
|
||
static void
|
||
sub_d6_y_x (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "d6, y, x");
|
||
}
|
||
|
||
static const char shift_size_table[] = {
|
||
'b', 'w', 'p', 'l'
|
||
};
|
||
|
||
static const struct opcode page2[] =
|
||
{
|
||
[0x00] = {"ld", opr_n_bytes_p1, 0, reg_s_opr},
|
||
[0x01] = {"st", opr_n_bytes_p1, 0, reg_s_opr},
|
||
[0x02] = {"cmp", opr_n_bytes_p1, 0, reg_s_opr},
|
||
[0x03] = {"ld", four, 0, reg_s_imm},
|
||
[0x04] = {"cmp", four, 0, reg_s_imm},
|
||
[0x05] = {"stop", single, 0, 0},
|
||
[0x06] = {"wai", single, 0, 0},
|
||
[0x07] = {"sys", single, 0, 0},
|
||
[0x08] = {NULL, bfextins_n_bytes, 0, 0}, /* BFEXT / BFINS */
|
||
[0x09] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0a] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0b] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0c] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0d] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0e] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x0f] = {NULL, bfextins_n_bytes, 0, 0},
|
||
[0x10] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x11] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x12] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x13] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x14] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x15] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x16] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x17] = {"minu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x18] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x19] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1a] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1b] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1c] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1d] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1e] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x1f] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x20] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x21] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x22] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x23] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x24] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x25] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x26] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x27] = {"mins", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x28] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x29] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2a] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2b] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2c] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2d] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2e] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x2f] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x30] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x31] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x32] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x33] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x34] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x35] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x36] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x37] = {"div", mul_n_bytes, mul_decode, 0},
|
||
[0x38] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x39] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3a] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3b] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3c] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3d] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3e] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x3f] = {"mod", mul_n_bytes, mul_decode, 0},
|
||
[0x40] = {"abs", single, reg, 0},
|
||
[0x41] = {"abs", single, reg, 0},
|
||
[0x42] = {"abs", single, reg, 0},
|
||
[0x43] = {"abs", single, reg, 0},
|
||
[0x44] = {"abs", single, reg, 0},
|
||
[0x45] = {"abs", single, reg, 0},
|
||
[0x46] = {"abs", single, reg, 0},
|
||
[0x47] = {"abs", single, reg, 0},
|
||
[0x48] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x49] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4a] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4b] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4c] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4d] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4e] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x4f] = {"mac", mul_n_bytes, mul_decode, 0},
|
||
[0x50] = {"adc", three, reg, imm1234_0base},
|
||
[0x51] = {"adc", three, reg, imm1234_0base},
|
||
[0x52] = {"adc", three, reg, imm1234_0base},
|
||
[0x53] = {"adc", three, reg, imm1234_0base},
|
||
[0x54] = {"adc", two, reg, imm1234_0base},
|
||
[0x55] = {"adc", two, reg, imm1234_0base},
|
||
[0x56] = {"adc", five, reg, imm1234_0base},
|
||
[0x57] = {"adc", five, reg, imm1234_0base},
|
||
[0x58] = {"bit", three, reg, imm1234_8base},
|
||
[0x59] = {"bit", three, reg, imm1234_8base},
|
||
[0x5a] = {"bit", three, reg, imm1234_8base},
|
||
[0x5b] = {"bit", three, reg, imm1234_8base},
|
||
[0x5c] = {"bit", two, reg, imm1234_8base},
|
||
[0x5d] = {"bit", two, reg, imm1234_8base},
|
||
[0x5e] = {"bit", five, reg, imm1234_8base},
|
||
[0x5f] = {"bit", five, reg, imm1234_8base},
|
||
[0x60] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x61] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x62] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x63] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x64] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x65] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x66] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x67] = {"adc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x68] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x69] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6a] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6b] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6c] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6d] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6e] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6f] = {"bit", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x70] = {"sbc", three, reg, imm1234_0base},
|
||
[0x71] = {"sbc", three, reg, imm1234_0base},
|
||
[0x72] = {"sbc", three, reg, imm1234_0base},
|
||
[0x73] = {"sbc", three, reg, imm1234_0base},
|
||
[0x74] = {"sbc", two, reg, imm1234_0base},
|
||
[0x75] = {"sbc", two, reg, imm1234_0base},
|
||
[0x76] = {"sbc", five, reg, imm1234_0base},
|
||
[0x77] = {"sbc", five, reg, imm1234_0base},
|
||
[0x78] = {"eor", three, reg, imm1234_8base},
|
||
[0x79] = {"eor", three, reg, imm1234_8base},
|
||
[0x7a] = {"eor", three, reg, imm1234_8base},
|
||
[0x7b] = {"eor", three, reg, imm1234_8base},
|
||
[0x7c] = {"eor", two, reg, imm1234_8base},
|
||
[0x7d] = {"eor", two, reg, imm1234_8base},
|
||
[0x7e] = {"eor", five, reg, imm1234_8base},
|
||
[0x7f] = {"eor", five, reg, imm1234_8base},
|
||
[0x80] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x81] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x82] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x83] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x84] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x85] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x86] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x87] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x88] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x89] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8a] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8b] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8c] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8d] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8e] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8f] = {"eor", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x90] = {"rti", single, 0, 0},
|
||
[0x91] = {"clb", two, tfr, 0},
|
||
[0x92] = {"trap", single, trap_decode, 0},
|
||
[0x93] = {"trap", single, trap_decode, 0},
|
||
[0x94] = {"trap", single, trap_decode, 0},
|
||
[0x95] = {"trap", single, trap_decode, 0},
|
||
[0x96] = {"trap", single, trap_decode, 0},
|
||
[0x97] = {"trap", single, trap_decode, 0},
|
||
[0x98] = {"trap", single, trap_decode, 0},
|
||
[0x99] = {"trap", single, trap_decode, 0},
|
||
[0x9a] = {"trap", single, trap_decode, 0},
|
||
[0x9b] = {"trap", single, trap_decode, 0},
|
||
[0x9c] = {"trap", single, trap_decode, 0},
|
||
[0x9d] = {"trap", single, trap_decode, 0},
|
||
[0x9e] = {"trap", single, trap_decode, 0},
|
||
[0x9f] = {"trap", single, trap_decode, 0},
|
||
[0xa0] = {"sat", single, reg, 0},
|
||
[0xa1] = {"sat", single, reg, 0},
|
||
[0xa2] = {"sat", single, reg, 0},
|
||
[0xa3] = {"sat", single, reg, 0},
|
||
[0xa4] = {"sat", single, reg, 0},
|
||
[0xa5] = {"sat", single, reg, 0},
|
||
[0xa6] = {"sat", single, reg, 0},
|
||
[0xa7] = {"sat", single, reg, 0},
|
||
[0xa8] = {"trap", single, trap_decode, 0},
|
||
[0xa9] = {"trap", single, trap_decode, 0},
|
||
[0xaa] = {"trap", single, trap_decode, 0},
|
||
[0xab] = {"trap", single, trap_decode, 0},
|
||
[0xac] = {"trap", single, trap_decode, 0},
|
||
[0xad] = {"trap", single, trap_decode, 0},
|
||
[0xae] = {"trap", single, trap_decode, 0},
|
||
[0xaf] = {"trap", single, trap_decode, 0},
|
||
[0xb0] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb1] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb2] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb3] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb4] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb5] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb6] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb7] = {"qmul", mul_n_bytes, mul_decode, 0},
|
||
[0xb8] = {"trap", single, trap_decode, 0},
|
||
[0xb9] = {"trap", single, trap_decode, 0},
|
||
[0xba] = {"trap", single, trap_decode, 0},
|
||
[0xbb] = {"trap", single, trap_decode, 0},
|
||
[0xbc] = {"trap", single, trap_decode, 0},
|
||
[0xbd] = {"trap", single, trap_decode, 0},
|
||
[0xbe] = {"trap", single, trap_decode, 0},
|
||
[0xbf] = {"trap", single, trap_decode, 0},
|
||
[0xc0] = {"trap", single, trap_decode, 0},
|
||
[0xc1] = {"trap", single, trap_decode, 0},
|
||
[0xc2] = {"trap", single, trap_decode, 0},
|
||
[0xc3] = {"trap", single, trap_decode, 0},
|
||
[0xc4] = {"trap", single, trap_decode, 0},
|
||
[0xc5] = {"trap", single, trap_decode, 0},
|
||
[0xc6] = {"trap", single, trap_decode, 0},
|
||
[0xc7] = {"trap", single, trap_decode, 0},
|
||
[0xc8] = {"trap", single, trap_decode, 0},
|
||
[0xc9] = {"trap", single, trap_decode, 0},
|
||
[0xca] = {"trap", single, trap_decode, 0},
|
||
[0xcb] = {"trap", single, trap_decode, 0},
|
||
[0xcc] = {"trap", single, trap_decode, 0},
|
||
[0xcd] = {"trap", single, trap_decode, 0},
|
||
[0xce] = {"trap", single, trap_decode, 0},
|
||
[0xcf] = {"trap", single, trap_decode, 0},
|
||
[0xd0] = {"trap", single, trap_decode, 0},
|
||
[0xd1] = {"trap", single, trap_decode, 0},
|
||
[0xd2] = {"trap", single, trap_decode, 0},
|
||
[0xd3] = {"trap", single, trap_decode, 0},
|
||
[0xd4] = {"trap", single, trap_decode, 0},
|
||
[0xd5] = {"trap", single, trap_decode, 0},
|
||
[0xd6] = {"trap", single, trap_decode, 0},
|
||
[0xd7] = {"trap", single, trap_decode, 0},
|
||
[0xd8] = {"trap", single, trap_decode, 0},
|
||
[0xd9] = {"trap", single, trap_decode, 0},
|
||
[0xda] = {"trap", single, trap_decode, 0},
|
||
[0xdb] = {"trap", single, trap_decode, 0},
|
||
[0xdc] = {"trap", single, trap_decode, 0},
|
||
[0xdd] = {"trap", single, trap_decode, 0},
|
||
[0xde] = {"trap", single, trap_decode, 0},
|
||
[0xdf] = {"trap", single, trap_decode, 0},
|
||
[0xe0] = {"trap", single, trap_decode, 0},
|
||
[0xe1] = {"trap", single, trap_decode, 0},
|
||
[0xe2] = {"trap", single, trap_decode, 0},
|
||
[0xe3] = {"trap", single, trap_decode, 0},
|
||
[0xe4] = {"trap", single, trap_decode, 0},
|
||
[0xe5] = {"trap", single, trap_decode, 0},
|
||
[0xe6] = {"trap", single, trap_decode, 0},
|
||
[0xe7] = {"trap", single, trap_decode, 0},
|
||
[0xe8] = {"trap", single, trap_decode, 0},
|
||
[0xe9] = {"trap", single, trap_decode, 0},
|
||
[0xea] = {"trap", single, trap_decode, 0},
|
||
[0xeb] = {"trap", single, trap_decode, 0},
|
||
[0xec] = {"trap", single, trap_decode, 0},
|
||
[0xed] = {"trap", single, trap_decode, 0},
|
||
[0xee] = {"trap", single, trap_decode, 0},
|
||
[0xef] = {"trap", single, trap_decode, 0},
|
||
[0xf0] = {"trap", single, trap_decode, 0},
|
||
[0xf1] = {"trap", single, trap_decode, 0},
|
||
[0xf2] = {"trap", single, trap_decode, 0},
|
||
[0xf3] = {"trap", single, trap_decode, 0},
|
||
[0xf4] = {"trap", single, trap_decode, 0},
|
||
[0xf5] = {"trap", single, trap_decode, 0},
|
||
[0xf6] = {"trap", single, trap_decode, 0},
|
||
[0xf7] = {"trap", single, trap_decode, 0},
|
||
[0xf8] = {"trap", single, trap_decode, 0},
|
||
[0xf9] = {"trap", single, trap_decode, 0},
|
||
[0xfa] = {"trap", single, trap_decode, 0},
|
||
[0xfb] = {"trap", single, trap_decode, 0},
|
||
[0xfc] = {"trap", single, trap_decode, 0},
|
||
[0xfd] = {"trap", single, trap_decode, 0},
|
||
[0xfe] = {"trap", single, trap_decode, 0},
|
||
[0xff] = {"trap", single, trap_decode, 0},
|
||
};
|
||
|
||
static const struct opcode page1[] =
|
||
{
|
||
[0x00] = {"bgnd", single, 0, 0},
|
||
[0x01] = {"nop", single, 0, 0},
|
||
[0x02] = {"brclr", bm_rel_n_bytes, bm_rel_decode, 0},
|
||
[0x03] = {"brset", bm_rel_n_bytes, bm_rel_decode, 0},
|
||
[0x04] = {NULL, two, 0, 0}, /* psh/pul */
|
||
[0x05] = {"rts", single, 0, 0},
|
||
[0x06] = {"lea", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x07] = {"lea", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x08] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
|
||
[0x09] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
|
||
[0x0a] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
|
||
[0x0b] = {NULL, loop_prim_n_bytes, 0, 0}, /* Loop primitives TBcc / DBcc */
|
||
[0x0c] = {"mov.b", mov_imm_opr_n_bytes, mov_imm_opr, 0},
|
||
[0x0d] = {"mov.w", mov_imm_opr_n_bytes, mov_imm_opr, 0},
|
||
[0x0e] = {"mov.p", mov_imm_opr_n_bytes, mov_imm_opr, 0},
|
||
[0x0f] = {"mov.l", mov_imm_opr_n_bytes, mov_imm_opr, 0},
|
||
[0x10] = {NULL, shift_n_bytes, 0, 0}, /* lsr/lsl/asl/asr/rol/ror */
|
||
[0x11] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x12] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x13] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x14] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x15] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x16] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x17] = {NULL, shift_n_bytes, 0, 0},
|
||
[0x18] = {"lea", two, lea_reg_xys, NULL},
|
||
[0x19] = {"lea", two, lea_reg_xys, NULL},
|
||
[0x1a] = {"lea", two, lea_reg_xys, NULL},
|
||
/* 0x1b PG2 */
|
||
[0x1c] = {"mov.b", opr_n_bytes2, 0, opr_decode2},
|
||
[0x1d] = {"mov.w", opr_n_bytes2, 0, opr_decode2},
|
||
[0x1e] = {"mov.p", opr_n_bytes2, 0, opr_decode2},
|
||
[0x1f] = {"mov.l", opr_n_bytes2, 0, opr_decode2},
|
||
[0x20] = {"bra", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x21] = {"bsr", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x22] = {"bhi", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x23] = {"bls", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x24] = {"bcc", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x25] = {"bcs", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x26] = {"bne", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x27] = {"beq", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x28] = {"bvc", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x29] = {"bvs", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2a] = {"bpl", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2b] = {"bmi", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2c] = {"bge", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2d] = {"blt", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2e] = {"bgt", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x2f] = {"ble", pcrel_15bit, decode_rel_15_7, 0},
|
||
[0x30] = {"inc", single, reg, 0},
|
||
[0x31] = {"inc", single, reg, 0},
|
||
[0x32] = {"inc", single, reg, 0},
|
||
[0x33] = {"inc", single, reg, 0},
|
||
[0x34] = {"inc", single, reg, 0},
|
||
[0x35] = {"inc", single, reg, 0},
|
||
[0x36] = {"inc", single, reg, 0},
|
||
[0x37] = {"inc", single, reg, 0},
|
||
[0x38] = {"clr", single, reg, 0},
|
||
[0x39] = {"clr", single, reg, 0},
|
||
[0x3a] = {"clr", single, reg, 0},
|
||
[0x3b] = {"clr", single, reg, 0},
|
||
[0x3c] = {"clr", single, reg, 0},
|
||
[0x3d] = {"clr", single, reg, 0},
|
||
[0x3e] = {"clr", single, reg, 0},
|
||
[0x3f] = {"clr", single, reg, 0},
|
||
[0x40] = {"dec", single, reg, 0},
|
||
[0x41] = {"dec", single, reg, 0},
|
||
[0x42] = {"dec", single, reg, 0},
|
||
[0x43] = {"dec", single, reg, 0},
|
||
[0x44] = {"dec", single, reg, 0},
|
||
[0x45] = {"dec", single, reg, 0},
|
||
[0x46] = {"dec", single, reg, 0},
|
||
[0x47] = {"dec", single, reg, 0},
|
||
[0x48] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x49] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4a] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4b] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4c] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4d] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4e] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x4f] = {"mul", mul_n_bytes, mul_decode, 0},
|
||
[0x50] = {"add", three, reg, imm1234_0base},
|
||
[0x51] = {"add", three, reg, imm1234_0base},
|
||
[0x52] = {"add", three, reg, imm1234_0base},
|
||
[0x53] = {"add", three, reg, imm1234_0base},
|
||
[0x54] = {"add", two, reg, imm1234_0base},
|
||
[0x55] = {"add", two, reg, imm1234_0base},
|
||
[0x56] = {"add", five, reg, imm1234_0base},
|
||
[0x57] = {"add", five, reg, imm1234_0base},
|
||
[0x58] = {"and", three, reg, imm1234_8base},
|
||
[0x59] = {"and", three, reg, imm1234_8base},
|
||
[0x5a] = {"and", three, reg, imm1234_8base},
|
||
[0x5b] = {"and", three, reg, imm1234_8base},
|
||
[0x5c] = {"and", two, reg, imm1234_8base},
|
||
[0x5d] = {"and", two, reg, imm1234_8base},
|
||
[0x5e] = {"and", five, reg, imm1234_8base},
|
||
[0x5f] = {"and", five, reg, imm1234_8base},
|
||
[0x60] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x61] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x62] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x63] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x64] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x65] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x66] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x67] = {"add", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x68] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x69] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6a] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6b] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6c] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6d] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6e] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x6f] = {"and", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x70] = {"sub", three, reg, imm1234_0base},
|
||
[0x71] = {"sub", three, reg, imm1234_0base},
|
||
[0x72] = {"sub", three, reg, imm1234_0base},
|
||
[0x73] = {"sub", three, reg, imm1234_0base},
|
||
[0x74] = {"sub", two, reg, imm1234_0base},
|
||
[0x75] = {"sub", two, reg, imm1234_0base},
|
||
[0x76] = {"sub", five, reg, imm1234_0base},
|
||
[0x77] = {"sub", five, reg, imm1234_0base},
|
||
[0x78] = {"or", three, reg, imm1234_8base},
|
||
[0x79] = {"or", three, reg, imm1234_8base},
|
||
[0x7a] = {"or", three, reg, imm1234_8base},
|
||
[0x7b] = {"or", three, reg, imm1234_8base},
|
||
[0x7c] = {"or", two, reg, imm1234_8base},
|
||
[0x7d] = {"or", two, reg, imm1234_8base},
|
||
[0x7e] = {"or", five, reg, imm1234_8base},
|
||
[0x7f] = {"or", five, reg, imm1234_8base},
|
||
[0x80] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x81] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x82] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x83] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x84] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x85] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x86] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x87] = {"sub", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x88] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x89] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8a] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8b] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8c] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8d] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8e] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x8f] = {"or", opr_n_bytes_p1, reg, opr_decode},
|
||
[0x90] = {"ld", three, reg, imm1234_0base},
|
||
[0x91] = {"ld", three, reg, imm1234_0base},
|
||
[0x92] = {"ld", three, reg, imm1234_0base},
|
||
[0x93] = {"ld", three, reg, imm1234_0base},
|
||
[0x94] = {"ld", two, reg, imm1234_0base},
|
||
[0x95] = {"ld", two, reg, imm1234_0base},
|
||
[0x96] = {"ld", five, reg, imm1234_0base},
|
||
[0x97] = {"ld", five, reg, imm1234_0base},
|
||
[0x98] = {"ld", four, reg_xy, imm1234_0base},
|
||
[0x99] = {"ld", four, reg_xy, imm1234_0base},
|
||
[0x9a] = {"clr", single, reg_xy, 0},
|
||
[0x9b] = {"clr", single, reg_xy, 0},
|
||
[0x9c] = {"inc.b", opr_n_bytes_p1, 0, opr_decode},
|
||
[0x9d] = {"inc.w", opr_n_bytes_p1, 0, opr_decode},
|
||
[0x9e] = {"tfr", two, tfr, NULL},
|
||
[0x9f] = {"inc.l", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xa0] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa1] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa2] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa3] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa4] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa5] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa6] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa7] = {"ld", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xa8] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xa9] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xaa] = {"jmp", opr_n_bytes_p1, opr_decode, 0},
|
||
[0xab] = {"jsr", opr_n_bytes_p1, opr_decode, 0},
|
||
[0xac] = {"dec.b", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xad] = {"dec.w", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xae] = {NULL, two, 0, 0}, /* EXG / SEX */
|
||
[0xaf] = {"dec.l", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xb0] = {"ld", four, reg, ext24_decode},
|
||
[0xb1] = {"ld", four, reg, ext24_decode},
|
||
[0xb2] = {"ld", four, reg, ext24_decode},
|
||
[0xb3] = {"ld", four, reg, ext24_decode},
|
||
[0xb4] = {"ld", four, reg, ext24_decode},
|
||
[0xb5] = {"ld", four, reg, ext24_decode},
|
||
[0xb6] = {"ld", four, reg, ext24_decode},
|
||
[0xb7] = {"ld", four, reg, ext24_decode},
|
||
[0xb8] = {"ld", four, reg_xy, ext24_decode},
|
||
[0xb9] = {"ld", four, reg_xy, ext24_decode},
|
||
[0xba] = {"jmp", four, ext24_decode, 0},
|
||
[0xbb] = {"jsr", four, ext24_decode, 0},
|
||
[0xbc] = {"clr.b", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xbd] = {"clr.w", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xbe] = {"clr.p", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xbf] = {"clr.l", opr_n_bytes_p1, 0, opr_decode},
|
||
[0xc0] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc1] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc2] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc3] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc4] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc5] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc6] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc7] = {"st", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xc8] = {"st", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xc9] = {"st", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xca] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xcb] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xcc] = {"com.b", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xcd] = {"com.w", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xce] = {"andcc", two, imm1, 0},
|
||
[0xcf] = {"com.l", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xd0] = {"st", four, reg, ext24_decode},
|
||
[0xd1] = {"st", four, reg, ext24_decode},
|
||
[0xd2] = {"st", four, reg, ext24_decode},
|
||
[0xd3] = {"st", four, reg, ext24_decode},
|
||
[0xd4] = {"st", four, reg, ext24_decode},
|
||
[0xd5] = {"st", four, reg, ext24_decode},
|
||
[0xd6] = {"st", four, reg, ext24_decode},
|
||
[0xd7] = {"st", four, reg, ext24_decode},
|
||
[0xd8] = {"st", four, reg_xy, ext24_decode},
|
||
[0xd9] = {"st", four, reg_xy, ext24_decode},
|
||
[0xda] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xdb] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xdc] = {"neg.b", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xdd] = {"neg.w", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xde] = {"orcc", two, imm1, 0},
|
||
[0xdf] = {"neg.l", opr_n_bytes_p1, NULL, opr_decode},
|
||
[0xe0] = {"cmp", three, reg, imm1234_0base},
|
||
[0xe1] = {"cmp", three, reg, imm1234_0base},
|
||
[0xe2] = {"cmp", three, reg, imm1234_0base},
|
||
[0xe3] = {"cmp", three, reg, imm1234_0base},
|
||
[0xe4] = {"cmp", two, reg, imm1234_0base},
|
||
[0xe5] = {"cmp", two, reg, imm1234_0base},
|
||
[0xe6] = {"cmp", five, reg, imm1234_0base},
|
||
[0xe7] = {"cmp", five, reg, imm1234_0base},
|
||
[0xe8] = {"cmp", four, reg_xy, imm1234_0base},
|
||
[0xe9] = {"cmp", four, reg_xy, imm1234_0base},
|
||
[0xea] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xeb] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xec] = {"bclr", bm_n_bytes, bm_decode, 0},
|
||
[0xed] = {"bset", bm_n_bytes, bm_decode, 0},
|
||
[0xee] = {"btgl", bm_n_bytes, bm_decode, 0},
|
||
[0xef] = {"!!invalid!!", NULL, NULL, NULL}, /* SPARE */
|
||
[0xf0] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf1] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf2] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf3] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf4] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf5] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf6] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf7] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
|
||
[0xf8] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xf9] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode},
|
||
[0xfa] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xfb] = {"ld", three, reg_xy, ld_18bit_decode},
|
||
[0xfc] = {"cmp", single, cmp_xy, 0},
|
||
[0xfd] = {"sub", single, sub_d6_x_y, 0},
|
||
[0xfe] = {"sub", single, sub_d6_y_x, 0},
|
||
[0xff] = {"swi", single, 0, 0}
|
||
};
|
||
|
||
|
||
static const char *oprregs1[] =
|
||
{
|
||
"d3", "d2", "d1", "d0", "ccl", "cch"
|
||
};
|
||
|
||
static const char *oprregs2[] =
|
||
{
|
||
"y", "x", "d7", "d6", "d5", "d4"
|
||
};
|
||
|
||
|
||
|
||
|
||
enum MUL_MODE
|
||
{
|
||
MUL_REG_REG,
|
||
MUL_REG_OPR,
|
||
MUL_REG_IMM,
|
||
MUL_OPR_OPR
|
||
};
|
||
|
||
struct mb
|
||
{
|
||
uint8_t mask;
|
||
uint8_t value;
|
||
enum MUL_MODE mode;
|
||
};
|
||
|
||
static const struct mb mul_table[] = {
|
||
{0x40, 0x00, MUL_REG_REG},
|
||
|
||
{0x47, 0x40, MUL_REG_OPR},
|
||
{0x47, 0x41, MUL_REG_OPR},
|
||
{0x47, 0x43, MUL_REG_OPR},
|
||
|
||
{0x47, 0x44, MUL_REG_IMM},
|
||
{0x47, 0x45, MUL_REG_IMM},
|
||
{0x47, 0x47, MUL_REG_IMM},
|
||
|
||
{0x43, 0x42, MUL_OPR_OPR},
|
||
};
|
||
|
||
static void
|
||
mul_decode (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
uint8_t mb;
|
||
int status = read_memory (memaddr, &mb, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
|
||
uint8_t byte;
|
||
status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
(*info->fprintf_func) (info->stream, "%c", (mb & 0x80) ? 's' : 'u');
|
||
|
||
enum MUL_MODE mode = -1;
|
||
size_t i;
|
||
for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i)
|
||
{
|
||
const struct mb *mm = mul_table + i;
|
||
if ((mb & mm->mask) == mm->value)
|
||
{
|
||
mode = mm->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case MUL_REG_REG:
|
||
break;
|
||
case MUL_OPR_OPR:
|
||
{
|
||
int size1 = (mb & 0x30) >> 4;
|
||
int size2 = (mb & 0x0c) >> 2;
|
||
(*info->fprintf_func) (info->stream, ".%c%c",
|
||
shift_size_table [size1],
|
||
shift_size_table [size2]);
|
||
}
|
||
break;
|
||
default:
|
||
{
|
||
int size = (mb & 0x3);
|
||
(*info->fprintf_func) (info->stream, ".%c", shift_size_table [size]);
|
||
}
|
||
break;
|
||
}
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name);
|
||
|
||
switch (mode)
|
||
{
|
||
case MUL_REG_REG:
|
||
case MUL_REG_IMM:
|
||
case MUL_REG_OPR:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[(mb & 0x38) >> 3].name);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case MUL_REG_IMM:
|
||
operand_separator (info);
|
||
int size = (mb & 0x3);
|
||
uint32_t imm = decode_signed_value (memaddr + 1, info, size + 1);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
break;
|
||
case MUL_REG_REG:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[mb & 0x07].name);
|
||
break;
|
||
case MUL_REG_OPR:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case MUL_OPR_OPR:
|
||
{
|
||
int first = opr_n_bytes (memaddr + 1, info);
|
||
opr_decode (memaddr + 1, info);
|
||
opr_decode (memaddr + first + 1, info);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
static int
|
||
mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
int nx = 2;
|
||
uint8_t mb;
|
||
int status = read_memory (memaddr, &mb, 1, info);
|
||
if (status < 0)
|
||
return 0;
|
||
|
||
enum MUL_MODE mode = -1;
|
||
size_t i;
|
||
for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i)
|
||
{
|
||
const struct mb *mm = mul_table + i;
|
||
if ((mb & mm->mask) == mm->value)
|
||
{
|
||
mode = mm->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
int size = (mb & 0x3) + 1;
|
||
|
||
switch (mode)
|
||
{
|
||
case MUL_REG_IMM:
|
||
nx += size;
|
||
break;
|
||
case MUL_REG_REG:
|
||
break;
|
||
case MUL_REG_OPR:
|
||
nx += opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
case MUL_OPR_OPR:
|
||
{
|
||
int first = opr_n_bytes (memaddr + nx - 1, info);
|
||
nx += first;
|
||
int second = opr_n_bytes (memaddr + nx - 1, info);
|
||
nx += second;
|
||
}
|
||
break;
|
||
}
|
||
|
||
return nx;
|
||
}
|
||
|
||
|
||
/* The NXP documentation is vague about BM_RESERVED0 and BM_RESERVED1,
|
||
and contains obvious typos.
|
||
However the Freescale tools and experiments with the chip itself
|
||
seem to indicate that they behave like BM_REG_IMM and BM_OPR_REG
|
||
respectively. */
|
||
|
||
enum BM_MODE {
|
||
BM_REG_IMM,
|
||
BM_RESERVED0,
|
||
BM_OPR_B,
|
||
BM_OPR_W,
|
||
BM_OPR_L,
|
||
BM_OPR_REG,
|
||
BM_RESERVED1
|
||
};
|
||
|
||
struct bm
|
||
{
|
||
uint8_t mask;
|
||
uint8_t value;
|
||
enum BM_MODE mode;
|
||
};
|
||
|
||
static const struct bm bm_table[] = {
|
||
{ 0xC6, 0x04, BM_REG_IMM},
|
||
{ 0x84, 0x00, BM_REG_IMM},
|
||
{ 0x06, 0x06, BM_REG_IMM},
|
||
{ 0xC6, 0x44, BM_RESERVED0},
|
||
// 00
|
||
{ 0x8F, 0x80, BM_OPR_B},
|
||
{ 0x8E, 0x82, BM_OPR_W},
|
||
{ 0x8C, 0x88, BM_OPR_L},
|
||
|
||
{ 0x83, 0x81, BM_OPR_REG},
|
||
{ 0x87, 0x84, BM_RESERVED1},
|
||
};
|
||
|
||
static void
|
||
bm_decode (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
uint8_t bm;
|
||
int status = read_memory (memaddr, &bm, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
size_t i;
|
||
enum BM_MODE mode = -1;
|
||
for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
|
||
{
|
||
const struct bm *bme = bm_table + i;
|
||
if ((bm & bme->mask) == bme->value)
|
||
{
|
||
mode = bme->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case BM_REG_IMM:
|
||
case BM_RESERVED0:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name);
|
||
break;
|
||
case BM_OPR_B:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'b');
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case BM_OPR_W:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'w');
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case BM_OPR_L:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'l');
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
{
|
||
uint8_t xb;
|
||
read_memory (memaddr + 1, &xb, 1, info);
|
||
/* Don't emit a size suffix for register operands */
|
||
if ((xb & 0xF8) != 0xB8)
|
||
(*info->fprintf_func) (info->stream, ".%c", shift_size_table[(bm & 0x0c) >> 2]);
|
||
opr_decode (memaddr + 1, info);
|
||
}
|
||
break;
|
||
}
|
||
|
||
uint8_t imm = 0;
|
||
operand_separator (info);
|
||
switch (mode)
|
||
{
|
||
case BM_REG_IMM:
|
||
{
|
||
imm = (bm & 0x38) >> 3;
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
}
|
||
break;
|
||
case BM_OPR_L:
|
||
imm |= (bm & 0x03) << 3;
|
||
/* fallthrough */
|
||
case BM_OPR_W:
|
||
imm |= (bm & 0x01) << 3;
|
||
/* fallthrough */
|
||
case BM_OPR_B:
|
||
imm |= (bm & 0x70) >> 4;
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
(*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name);
|
||
break;
|
||
case BM_RESERVED0:
|
||
assert (0);
|
||
break;
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
uint8_t bm;
|
||
int status = read_memory (memaddr, &bm, 1, info);
|
||
if (status < 0)
|
||
return;
|
||
|
||
size_t i;
|
||
enum BM_MODE mode = -1;
|
||
for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
|
||
{
|
||
const struct bm *bme = bm_table + i;
|
||
if ((bm & bme->mask) == bme->value)
|
||
{
|
||
mode = bme->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case BM_REG_IMM:
|
||
case BM_RESERVED0:
|
||
break;
|
||
case BM_OPR_B:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'b');
|
||
break;
|
||
case BM_OPR_W:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'w');
|
||
break;
|
||
case BM_OPR_L:
|
||
(*info->fprintf_func) (info->stream, ".%c", 'l');
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
{
|
||
uint8_t xb;
|
||
read_memory (memaddr + 1, &xb, 1, info);
|
||
/* Don't emit a size suffix for register operands */
|
||
if ((xb & 0xF8) != 0xB8)
|
||
(*info->fprintf_func) (info->stream, ".%c",
|
||
shift_size_table[(bm & 0x0C) >> 2]);
|
||
}
|
||
break;
|
||
}
|
||
|
||
int n = 1;
|
||
switch (mode)
|
||
{
|
||
case BM_REG_IMM:
|
||
case BM_RESERVED0:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name);
|
||
break;
|
||
case BM_OPR_B:
|
||
case BM_OPR_W:
|
||
case BM_OPR_L:
|
||
opr_decode (memaddr + 1, info);
|
||
n = 1 + opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
}
|
||
|
||
|
||
int imm = 0;
|
||
operand_separator (info);
|
||
switch (mode)
|
||
{
|
||
case BM_OPR_L:
|
||
imm |= (bm & 0x02) << 3;
|
||
/* fall through */
|
||
case BM_OPR_W:
|
||
imm |= (bm & 0x01) << 3;
|
||
/* fall through */
|
||
case BM_OPR_B:
|
||
imm |= (bm & 0x70) >> 4;
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
break;
|
||
case BM_RESERVED0:
|
||
imm = (bm & 0x38) >> 3;
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
break;
|
||
case BM_REG_IMM:
|
||
imm = (bm & 0xF8) >> 3;
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
(*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name);
|
||
n += opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
}
|
||
|
||
rel_15_7 (memaddr + n, info, n + 1);
|
||
}
|
||
|
||
static int
|
||
bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
uint8_t bm;
|
||
int status = read_memory (memaddr, &bm, 1, info);
|
||
if (status < 0)
|
||
return status;
|
||
|
||
size_t i;
|
||
enum BM_MODE mode = -1;
|
||
for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
|
||
{
|
||
const struct bm *bme = bm_table + i;
|
||
if ((bm & bme->mask) == bme->value)
|
||
{
|
||
mode = bme->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
int n = 2;
|
||
switch (mode)
|
||
{
|
||
case BM_REG_IMM:
|
||
case BM_RESERVED0:
|
||
break;
|
||
|
||
case BM_OPR_B:
|
||
case BM_OPR_W:
|
||
case BM_OPR_L:
|
||
n += opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
case BM_OPR_REG:
|
||
case BM_RESERVED1:
|
||
n += opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
}
|
||
|
||
return n;
|
||
}
|
||
|
||
static int
|
||
bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
int n = 1 + bm_n_bytes (memaddr, info);
|
||
|
||
bfd_byte rb;
|
||
int status = read_memory (memaddr + n - 2, &rb, 1, info);
|
||
if (status != 0)
|
||
return status;
|
||
|
||
if (rb & 0x80)
|
||
n++;
|
||
|
||
return n;
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/* shift direction */
|
||
enum SB_DIR
|
||
{
|
||
SB_LEFT,
|
||
SB_RIGHT
|
||
};
|
||
|
||
enum SB_TYPE
|
||
{
|
||
SB_ARITHMETIC,
|
||
SB_LOGICAL
|
||
};
|
||
|
||
|
||
enum SB_MODE
|
||
{
|
||
SB_REG_REG_N_EFF,
|
||
SB_REG_REG_N,
|
||
SB_REG_OPR_EFF,
|
||
SB_ROT,
|
||
SB_REG_OPR_OPR,
|
||
SB_OPR_N
|
||
};
|
||
|
||
struct sb
|
||
{
|
||
uint8_t mask;
|
||
uint8_t value;
|
||
enum SB_MODE mode;
|
||
};
|
||
|
||
static const struct sb sb_table[] = {
|
||
{0x30, 0x00, SB_REG_REG_N_EFF},
|
||
{0x30, 0x10, SB_REG_REG_N},
|
||
{0x34, 0x20, SB_REG_OPR_EFF},
|
||
{0x34, 0x24, SB_ROT},
|
||
{0x34, 0x30, SB_REG_OPR_OPR},
|
||
{0x34, 0x34, SB_OPR_N},
|
||
};
|
||
|
||
static int
|
||
shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte sb;
|
||
int status = read_memory (memaddr++, &sb, 1, info);
|
||
if (status != 0)
|
||
return status;
|
||
|
||
size_t i;
|
||
enum SB_MODE mode = -1;
|
||
for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i)
|
||
{
|
||
const struct sb *sbe = sb_table + i;
|
||
if ((sb & sbe->mask) == sbe->value)
|
||
mode = sbe->mode;
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case SB_REG_REG_N_EFF:
|
||
return 2;
|
||
break;
|
||
case SB_REG_OPR_EFF:
|
||
case SB_ROT:
|
||
return 2 + opr_n_bytes (memaddr, info);
|
||
break;
|
||
case SB_REG_OPR_OPR:
|
||
{
|
||
int opr1 = opr_n_bytes (memaddr, info);
|
||
int opr2 = 0;
|
||
if ((sb & 0x30) != 0x20)
|
||
opr2 = opr_n_bytes (memaddr + opr1, info);
|
||
return 2 + opr1 + opr2;
|
||
}
|
||
break;
|
||
default:
|
||
return 3;
|
||
}
|
||
|
||
/* not reached */
|
||
return -1;
|
||
}
|
||
|
||
|
||
static int
|
||
mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return status;
|
||
|
||
int size = byte - 0x0c + 1;
|
||
|
||
return size + opr_n_bytes (memaddr + size, info) + 1;
|
||
}
|
||
|
||
static void
|
||
mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr - 1, &byte, 1, info);
|
||
if (status < 0)
|
||
return ;
|
||
|
||
int size = byte - 0x0c + 1;
|
||
uint32_t imm = decode_signed_value (memaddr, info, size);
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
opr_decode (memaddr + size, info);
|
||
}
|
||
|
||
|
||
|
||
static void
|
||
ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
size_t size = 3;
|
||
bfd_byte buffer[3];
|
||
int status = read_memory (memaddr, buffer + 1, 2, info);
|
||
if (status < 0)
|
||
return ;
|
||
|
||
|
||
status = read_memory (memaddr - 1, buffer, 1, info);
|
||
if (status < 0)
|
||
return ;
|
||
|
||
buffer[0] = (buffer[0] & 0x30) >> 4;
|
||
|
||
size_t i;
|
||
uint32_t imm = 0;
|
||
for (i = 0; i < size; ++i)
|
||
{
|
||
imm |= buffer[i] << (8 * (size - i - 1));
|
||
}
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
}
|
||
|
||
|
||
|
||
/* Loop Primitives */
|
||
|
||
enum LP_MODE {
|
||
LP_REG,
|
||
LP_XY,
|
||
LP_OPR
|
||
};
|
||
|
||
struct lp
|
||
{
|
||
uint8_t mask;
|
||
uint8_t value;
|
||
enum LP_MODE mode;
|
||
};
|
||
|
||
static const struct lp lp_mode[] = {
|
||
{0x08, 0x00, LP_REG},
|
||
{0x0C, 0x08, LP_XY},
|
||
{0x0C, 0x0C, LP_OPR},
|
||
};
|
||
|
||
|
||
static const char *lb_condition[] =
|
||
{
|
||
"ne", "eq", "pl", "mi", "gt", "le",
|
||
"??", "??"
|
||
};
|
||
|
||
static int
|
||
loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
int mx = 0;
|
||
uint8_t lb;
|
||
read_memory (memaddr + mx++, &lb, 1, info);
|
||
|
||
enum LP_MODE mode = -1;
|
||
size_t i;
|
||
for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i)
|
||
{
|
||
const struct lp *pb = lp_mode + i;
|
||
if ((lb & pb->mask) == pb->value)
|
||
{
|
||
mode = pb->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (mode == LP_OPR)
|
||
{
|
||
mx += opr_n_bytes (memaddr + mx, info) ;
|
||
}
|
||
|
||
uint8_t rb;
|
||
read_memory (memaddr + mx++, &rb, 1, info);
|
||
if (rb & 0x80)
|
||
mx++;
|
||
|
||
return mx + 1;
|
||
}
|
||
|
||
|
||
|
||
|
||
static int
|
||
print_insn_exg_sex (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
uint8_t eb;
|
||
int status = read_memory (memaddr, &eb, 1, info);
|
||
if (status < 0)
|
||
return -1;
|
||
|
||
const struct reg *first = ®isters[(eb & 0xf0) >> 4];
|
||
const struct reg *second = ®isters[(eb & 0xf)];
|
||
|
||
if (first->bytes < second->bytes)
|
||
(*info->fprintf_func) (info->stream, "sex");
|
||
else
|
||
(*info->fprintf_func) (info->stream, "exg");
|
||
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", first->name);
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", second->name);
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
static int
|
||
print_insn_loop_primitive (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
int offs = 1;
|
||
uint8_t lb;
|
||
int status = read_memory (memaddr, &lb, 1, info);
|
||
|
||
char mnemonic[7];
|
||
int x = 0;
|
||
mnemonic[x++] = (lb & 0x80) ? 'd' : 't';
|
||
mnemonic[x++] = 'b';
|
||
stpcpy (mnemonic + x, lb_condition [(lb & 0x70) >> 4]);
|
||
x += 2;
|
||
|
||
const char *reg_dxy = NULL;
|
||
enum LP_MODE mode = -1;
|
||
size_t i;
|
||
for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i)
|
||
{
|
||
const struct lp *pb = lp_mode + i;
|
||
if ((lb & pb->mask) == pb->value)
|
||
{
|
||
mode = pb->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case LP_REG:
|
||
reg_dxy = registers [lb & 0x07].name;
|
||
break;
|
||
case LP_XY:
|
||
reg_dxy = (lb & 0x1) ? "y" : "x";
|
||
break;
|
||
case LP_OPR:
|
||
mnemonic[x++] = '.';
|
||
mnemonic[x++] = shift_size_table [lb & 0x03];
|
||
offs += opr_n_bytes (memaddr + 1, info);
|
||
break;
|
||
}
|
||
|
||
mnemonic[x++] = '\0';
|
||
|
||
(*info->fprintf_func) (info->stream, "%s", mnemonic);
|
||
|
||
if (mode == LP_OPR)
|
||
opr_decode (memaddr + 1, info);
|
||
else
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", reg_dxy);
|
||
}
|
||
|
||
rel_15_7 (memaddr + offs, info, offs + 1);
|
||
|
||
return status;
|
||
}
|
||
|
||
|
||
static int
|
||
print_insn_shift (bfd_vma memaddr, struct disassemble_info* info, uint8_t byte)
|
||
{
|
||
size_t i;
|
||
uint8_t sb;
|
||
int status = read_memory (memaddr, &sb, 1, info);
|
||
if (status < 0)
|
||
return status;
|
||
|
||
enum SB_DIR dir = (sb & 0x40) ? SB_LEFT : SB_RIGHT;
|
||
enum SB_TYPE type = (sb & 0x80) ? SB_ARITHMETIC : SB_LOGICAL;
|
||
enum SB_MODE mode = -1;
|
||
for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i)
|
||
{
|
||
const struct sb *sbe = sb_table + i;
|
||
if ((sb & sbe->mask) == sbe->value)
|
||
mode = sbe->mode;
|
||
}
|
||
|
||
char mnemonic[6];
|
||
int x = 0;
|
||
if (mode == SB_ROT)
|
||
{
|
||
mnemonic[x++] = 'r';
|
||
mnemonic[x++] = 'o';
|
||
}
|
||
else
|
||
{
|
||
mnemonic[x++] = (type == SB_LOGICAL) ? 'l' : 'a';
|
||
mnemonic[x++] = 's';
|
||
}
|
||
|
||
mnemonic[x++] = (dir == SB_LEFT) ? 'l' : 'r';
|
||
|
||
switch (mode)
|
||
{
|
||
case SB_REG_OPR_EFF:
|
||
case SB_ROT:
|
||
case SB_REG_OPR_OPR:
|
||
mnemonic[x++] = '.';
|
||
mnemonic[x++] = shift_size_table[sb & 0x03];
|
||
break;
|
||
case SB_OPR_N:
|
||
{
|
||
uint8_t xb;
|
||
read_memory (memaddr + 1, &xb, 1, info);
|
||
/* The size suffix is not printed if the OPR operand refers
|
||
directly to a register, because the size is implied by the
|
||
size of that register. */
|
||
if ((xb & 0xF8) != 0xB8)
|
||
{
|
||
mnemonic[x++] = '.';
|
||
mnemonic[x++] = shift_size_table[sb & 0x03];
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
};
|
||
|
||
mnemonic[x++] = '\0';
|
||
|
||
(*info->fprintf_func) (info->stream, "%s", mnemonic);
|
||
|
||
/* Destination register */
|
||
switch (mode)
|
||
{
|
||
case SB_REG_REG_N_EFF:
|
||
case SB_REG_REG_N:
|
||
case SB_REG_OPR_EFF:
|
||
case SB_REG_OPR_OPR:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name);
|
||
break;
|
||
|
||
case SB_ROT:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* Source register */
|
||
switch (mode)
|
||
{
|
||
case SB_REG_REG_N_EFF:
|
||
case SB_REG_REG_N:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", registers[sb & 0x7].name);
|
||
break;
|
||
|
||
case SB_REG_OPR_OPR:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
/* 3rd arg */
|
||
switch (mode)
|
||
{
|
||
case SB_REG_OPR_EFF:
|
||
case SB_OPR_N:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
|
||
case SB_REG_REG_N:
|
||
if (sb & 0x08)
|
||
{
|
||
operand_separator (info);
|
||
if (byte & 0x10)
|
||
{
|
||
uint8_t xb;
|
||
read_memory (memaddr + 1, &xb, 1, info);
|
||
int shift = ((sb & 0x08) >> 3) | ((xb & 0x0f) << 1);
|
||
(*info->fprintf_func) (info->stream, "#%d", shift);
|
||
}
|
||
else
|
||
{
|
||
(*info->fprintf_func) (info->stream, "%s:%d", __FILE__, __LINE__);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
opr_decode (memaddr + 1, info);
|
||
}
|
||
break;
|
||
case SB_REG_OPR_OPR:
|
||
{
|
||
uint8_t xb;
|
||
int n = opr_n_bytes (memaddr + 1, info);
|
||
read_memory (memaddr + 1 + n, &xb, 1, info);
|
||
|
||
if ((xb & 0xF0) == 0x70)
|
||
{
|
||
int imm = xb & 0x0F;
|
||
imm <<= 1;
|
||
imm |= (sb & 0x08) >> 3;
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d", imm);
|
||
}
|
||
else
|
||
{
|
||
opr_decode (memaddr + 1 + n, info);
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case SB_REG_REG_N_EFF:
|
||
case SB_REG_OPR_EFF:
|
||
case SB_OPR_N:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "#%d",
|
||
(sb & 0x08) ? 2 : 1);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
print_insn_s12z (bfd_vma memaddr, struct disassemble_info* info)
|
||
{
|
||
bfd_byte byte;
|
||
int status = read_memory (memaddr++, &byte, 1, info);
|
||
if (status != 0)
|
||
return status;
|
||
|
||
const struct opcode *opc2 = NULL;
|
||
const struct opcode *opc = page1 + byte;
|
||
if (opc->mnemonic)
|
||
{
|
||
(*info->fprintf_func) (info->stream, "%s", opc->mnemonic);
|
||
}
|
||
else
|
||
{
|
||
/* The special cases ... */
|
||
switch (byte)
|
||
{
|
||
case PAGE2_PREBYTE:
|
||
{
|
||
bfd_byte byte2;
|
||
read_memory (memaddr++, &byte2, 1, info);
|
||
opc2 = page2 + byte2;
|
||
if (opc2->mnemonic)
|
||
{
|
||
(*info->fprintf_func) (info->stream, "%s", opc2->mnemonic);
|
||
|
||
if (opc2->operands)
|
||
{
|
||
opc2->operands (memaddr, info);
|
||
}
|
||
|
||
if (opc2->operands2)
|
||
{
|
||
opc2->operands2 (memaddr, info);
|
||
}
|
||
}
|
||
else if (byte2 >= 0x08 && byte2 <= 0x1F)
|
||
{
|
||
bfd_byte bb;
|
||
read_memory (memaddr, &bb, 1, info);
|
||
if (bb & 0x80)
|
||
(*info->fprintf_func) (info->stream, "bfins");
|
||
else
|
||
(*info->fprintf_func) (info->stream, "bfext");
|
||
|
||
enum BB_MODE mode = -1;
|
||
size_t i;
|
||
const struct opr_bb *bbs = 0;
|
||
for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i)
|
||
{
|
||
bbs = bb_modes + i;
|
||
if ((bb & bbs->mask) == bbs->value)
|
||
{
|
||
mode = bbs->mode;
|
||
break;
|
||
}
|
||
}
|
||
|
||
switch (mode)
|
||
{
|
||
case BB_REG_OPR_REG:
|
||
case BB_REG_OPR_IMM:
|
||
case BB_OPR_REG_REG:
|
||
case BB_OPR_REG_IMM:
|
||
{
|
||
int size = (bb >> 2) & 0x03;
|
||
(*info->fprintf_func) (info->stream, ".%c",
|
||
shift_size_table [size]);
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
int reg1 = byte2 & 0x07;
|
||
/* First operand */
|
||
switch (mode)
|
||
{
|
||
case BB_REG_REG_REG:
|
||
case BB_REG_REG_IMM:
|
||
case BB_REG_OPR_REG:
|
||
case BB_REG_OPR_IMM:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s",
|
||
registers[reg1].name);
|
||
break;
|
||
case BB_OPR_REG_REG:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case BB_OPR_REG_IMM:
|
||
opr_decode (memaddr + 2, info);
|
||
break;
|
||
}
|
||
|
||
/* Second operand */
|
||
switch (mode)
|
||
{
|
||
case BB_REG_REG_REG:
|
||
case BB_REG_REG_IMM:
|
||
{
|
||
int reg_src = (bb >> 2) & 0x07;
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s",
|
||
registers[reg_src].name);
|
||
}
|
||
break;
|
||
case BB_OPR_REG_REG:
|
||
case BB_OPR_REG_IMM:
|
||
{
|
||
int reg_src = (byte2 & 0x07);
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s",
|
||
registers[reg_src].name);
|
||
}
|
||
break;
|
||
case BB_REG_OPR_REG:
|
||
opr_decode (memaddr + 1, info);
|
||
break;
|
||
case BB_REG_OPR_IMM:
|
||
opr_decode (memaddr + 2, info);
|
||
break;
|
||
}
|
||
|
||
/* Third operand */
|
||
operand_separator (info);
|
||
switch (mode)
|
||
{
|
||
case BB_REG_REG_REG:
|
||
case BB_OPR_REG_REG:
|
||
case BB_REG_OPR_REG:
|
||
{
|
||
int reg_parm = bb & 0x03;
|
||
(*info->fprintf_func) (info->stream, "%s",
|
||
registers[reg_parm].name);
|
||
}
|
||
break;
|
||
case BB_REG_REG_IMM:
|
||
case BB_OPR_REG_IMM:
|
||
case BB_REG_OPR_IMM:
|
||
{
|
||
bfd_byte i1;
|
||
read_memory (memaddr + 1, &i1, 1, info);
|
||
int offset = i1 & 0x1f;
|
||
int width = bb & 0x03;
|
||
width <<= 3;
|
||
width |= i1 >> 5;
|
||
(*info->fprintf_func) (info->stream, "#%d:%d", width, offset);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case 0xae: /* EXG / SEX */
|
||
status = print_insn_exg_sex (memaddr, info);
|
||
break;
|
||
case 0x0b: /* Loop Primitives TBcc and DBcc */
|
||
status = print_insn_loop_primitive (memaddr, info);
|
||
break;
|
||
case 0x10: /* shift */
|
||
case 0x11: /* shift */
|
||
case 0x12: /* shift */
|
||
case 0x13: /* shift */
|
||
case 0x14: /* shift */
|
||
case 0x15: /* shift */
|
||
case 0x16: /* shift */
|
||
case 0x17: /* shift */
|
||
status = print_insn_shift (memaddr, info, byte);
|
||
break;
|
||
case 0x04: /* psh / pul */
|
||
{
|
||
read_memory (memaddr, &byte, 1, info);
|
||
(*info->fprintf_func) (info->stream, (byte & 0x80) ? "pul" : "psh");
|
||
int bit;
|
||
if (byte & 0x40)
|
||
{
|
||
if ((byte & 0x3F) == 0)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", "ALL16b");
|
||
}
|
||
else
|
||
for (bit = 5; bit >= 0; --bit)
|
||
{
|
||
if (byte & (0x1 << bit))
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", oprregs2[bit]);
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if ((byte & 0x3F) == 0)
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", "ALL");
|
||
}
|
||
else
|
||
for (bit = 5; bit >= 0; --bit)
|
||
{
|
||
if (byte & (0x1 << bit))
|
||
{
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "%s", oprregs1[bit]);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
operand_separator (info);
|
||
(*info->fprintf_func) (info->stream, "???");
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (opc2 == NULL)
|
||
{
|
||
if (opc->operands)
|
||
{
|
||
opc->operands (memaddr, info);
|
||
}
|
||
|
||
if (opc->operands2)
|
||
{
|
||
opc->operands2 (memaddr, info);
|
||
}
|
||
}
|
||
|
||
int n = 0;
|
||
|
||
/* Opcodes in page2 have an additional byte */
|
||
if (opc2)
|
||
n++;
|
||
|
||
if (opc2 && opc2->insn_bytes == 0)
|
||
return n;
|
||
|
||
if (!opc2 && opc->insn_bytes == 0)
|
||
return n;
|
||
|
||
if (opc2)
|
||
n += opc2->insn_bytes (memaddr, info);
|
||
else
|
||
n += opc->insn_bytes (memaddr, info);
|
||
|
||
return n;
|
||
}
|