Annotation of qemu/cris-dis.c, revision 1.1.1.1

1.1       root        1: /* Disassembler code for CRIS.
                      2:    Copyright 2000, 2001, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
                      3:    Contributed by Axis Communications AB, Lund, Sweden.
                      4:    Written by Hans-Peter Nilsson.
                      5: 
                      6:    This file is part of the GNU binutils and GDB, the GNU debugger.
                      7: 
                      8:    This program is free software; you can redistribute it and/or modify it
                      9:    under the terms of the GNU General Public License as published by the
                     10:    Free Software Foundation; either version 2, or (at your option) any later
                     11:    version.
                     12: 
                     13:    This program is distributed in the hope that it will be useful, but WITHOUT
                     14:    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
                     15:    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
                     16:    more details.
                     17: 
                     18:    You should have received a copy of the GNU General Public License
                     19:    along with this program; if not, write to the Free Software
                     20:    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
                     21:    MA 02110-1301, USA.  */
                     22: 
                     23: #include "dis-asm.h"
                     24: //#include "sysdep.h"
                     25: #include "target-cris/opcode-cris.h"
                     26: //#include "libiberty.h"
                     27: 
                     28: 
                     29: #define FALSE 0
                     30: #define TRUE 1
                     31: #define CONST_STRNEQ(STR1,STR2) (strncmp ((STR1), (STR2), sizeof (STR2) - 1) == 0)
                     32: 
                     33: /* cris-opc.c -- Table of opcodes for the CRIS processor.
                     34:    Copyright 2000, 2001, 2004 Free Software Foundation, Inc.
                     35:    Contributed by Axis Communications AB, Lund, Sweden.
                     36:    Originally written for GAS 1.38.1 by Mikael Asker.
                     37:    Reorganized by Hans-Peter Nilsson.
                     38: 
                     39: This file is part of GAS, GDB and the GNU binutils.
                     40: 
                     41: GAS, GDB, and GNU binutils is free software; you can redistribute it
                     42: and/or modify it under the terms of the GNU General Public License as
                     43: published by the Free Software Foundation; either version 2, or (at your
                     44: option) any later version.
                     45: 
                     46: GAS, GDB, and GNU binutils are distributed in the hope that they will be
                     47: useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
                     48: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     49: GNU General Public License for more details.
                     50: 
                     51: You should have received a copy of the GNU General Public License
                     52: along with this program; if not, write to the Free Software
                     53: Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
                     54: 
                     55: #ifndef NULL
                     56: #define NULL (0)
                     57: #endif
                     58: 
                     59: /* This table isn't used for CRISv32 and the size of immediate operands.  */
                     60: const struct cris_spec_reg
                     61: cris_spec_regs[] =
                     62: {
                     63:   {"bz",  0,  1, cris_ver_v32p,           NULL},
                     64:   {"p0",  0,  1, 0,               NULL},
                     65:   {"vr",  1,  1, 0,               NULL},
                     66:   {"p1",  1,  1, 0,               NULL},
                     67:   {"pid", 2,  1, cris_ver_v32p,    NULL},
                     68:   {"p2",  2,  1, cris_ver_v32p,           NULL},
                     69:   {"p2",  2,  1, cris_ver_warning, NULL},
                     70:   {"srs", 3,  1, cris_ver_v32p,    NULL},
                     71:   {"p3",  3,  1, cris_ver_v32p,           NULL},
                     72:   {"p3",  3,  1, cris_ver_warning, NULL},
                     73:   {"wz",  4,  2, cris_ver_v32p,           NULL},
                     74:   {"p4",  4,  2, 0,               NULL},
                     75:   {"ccr", 5,  2, cris_ver_v0_10,   NULL},
                     76:   {"exs", 5,  4, cris_ver_v32p,           NULL},
                     77:   {"p5",  5,  2, cris_ver_v0_10,   NULL},
                     78:   {"p5",  5,  4, cris_ver_v32p,           NULL},
                     79:   {"dcr0",6,  2, cris_ver_v0_3,           NULL},
                     80:   {"eda", 6,  4, cris_ver_v32p,           NULL},
                     81:   {"p6",  6,  2, cris_ver_v0_3,           NULL},
                     82:   {"p6",  6,  4, cris_ver_v32p,           NULL},
                     83:   {"dcr1/mof", 7, 4, cris_ver_v10p,
                     84:    "Register `dcr1/mof' with ambiguous size specified.  Guessing 4 bytes"},
                     85:   {"dcr1/mof", 7, 2, cris_ver_v0_3,
                     86:    "Register `dcr1/mof' with ambiguous size specified.  Guessing 2 bytes"},
                     87:   {"mof", 7,  4, cris_ver_v10p,           NULL},
                     88:   {"dcr1",7,  2, cris_ver_v0_3,           NULL},
                     89:   {"p7",  7,  4, cris_ver_v10p,           NULL},
                     90:   {"p7",  7,  2, cris_ver_v0_3,           NULL},
                     91:   {"dz",  8,  4, cris_ver_v32p,           NULL},
                     92:   {"p8",  8,  4, 0,               NULL},
                     93:   {"ibr", 9,  4, cris_ver_v0_10,   NULL},
                     94:   {"ebp", 9,  4, cris_ver_v32p,           NULL},
                     95:   {"p9",  9,  4, 0,               NULL},
                     96:   {"irp", 10, 4, cris_ver_v0_10,   NULL},
                     97:   {"erp", 10, 4, cris_ver_v32p,           NULL},
                     98:   {"p10", 10, 4, 0,               NULL},
                     99:   {"srp", 11, 4, 0,               NULL},
                    100:   {"p11", 11, 4, 0,               NULL},
                    101:   /* For disassembly use only.  Accept at assembly with a warning.  */
                    102:   {"bar/dtp0", 12, 4, cris_ver_warning,
                    103:    "Ambiguous register `bar/dtp0' specified"},
                    104:   {"nrp", 12, 4, cris_ver_v32p,           NULL},
                    105:   {"bar", 12, 4, cris_ver_v8_10,   NULL},
                    106:   {"dtp0",12, 4, cris_ver_v0_3,           NULL},
                    107:   {"p12", 12, 4, 0,               NULL},
                    108:   /* For disassembly use only.  Accept at assembly with a warning.  */
                    109:   {"dccr/dtp1",13, 4, cris_ver_warning,
                    110:    "Ambiguous register `dccr/dtp1' specified"},
                    111:   {"ccs", 13, 4, cris_ver_v32p,           NULL},
                    112:   {"dccr",13, 4, cris_ver_v8_10,   NULL},
                    113:   {"dtp1",13, 4, cris_ver_v0_3,           NULL},
                    114:   {"p13", 13, 4, 0,               NULL},
                    115:   {"brp", 14, 4, cris_ver_v3_10,   NULL},
                    116:   {"usp", 14, 4, cris_ver_v32p,           NULL},
                    117:   {"p14", 14, 4, cris_ver_v3p,    NULL},
                    118:   {"usp", 15, 4, cris_ver_v10,    NULL},
                    119:   {"spc", 15, 4, cris_ver_v32p,           NULL},
                    120:   {"p15", 15, 4, cris_ver_v10p,           NULL},
                    121:   {NULL, 0, 0, cris_ver_version_all, NULL}
                    122: };
                    123: 
                    124: /* Add version specifiers to this table when necessary.
                    125:    The (now) regular coding of register names suggests a simpler
                    126:    implementation.  */
                    127: const struct cris_support_reg cris_support_regs[] =
                    128: {
                    129:   {"s0", 0},
                    130:   {"s1", 1},
                    131:   {"s2", 2},
                    132:   {"s3", 3},
                    133:   {"s4", 4},
                    134:   {"s5", 5},
                    135:   {"s6", 6},
                    136:   {"s7", 7},
                    137:   {"s8", 8},
                    138:   {"s9", 9},
                    139:   {"s10", 10},
                    140:   {"s11", 11},
                    141:   {"s12", 12},
                    142:   {"s13", 13},
                    143:   {"s14", 14},
                    144:   {"s15", 15},
                    145:   {NULL, 0}
                    146: };
                    147: 
                    148: /* All CRIS opcodes are 16 bits.
                    149: 
                    150:    - The match component is a mask saying which bits must match a
                    151:      particular opcode in order for an instruction to be an instance
                    152:      of that opcode.
                    153: 
                    154:    - The args component is a string containing characters symbolically
                    155:      matching the operands of an instruction.  Used for both assembly
                    156:      and disassembly.
                    157: 
                    158:      Operand-matching characters:
                    159:      [ ] , space
                    160:         Verbatim.
                    161:      A The string "ACR" (case-insensitive).
                    162:      B Not really an operand.  It causes a "BDAP -size,SP" prefix to be
                    163:        output for the PUSH alias-instructions and recognizes a push-
                    164:        prefix at disassembly.  This letter isn't recognized for v32.
                    165:        Must be followed by a R or P letter.
                    166:      ! Non-match pattern, will not match if there's a prefix insn.
                    167:      b Non-matching operand, used for branches with 16-bit
                    168:        displacement. Only recognized by the disassembler.
                    169:      c 5-bit unsigned immediate in bits <4:0>.
                    170:      C 4-bit unsigned immediate in bits <3:0>.
                    171:      d  At assembly, optionally (as in put other cases before this one)
                    172:        ".d" or ".D" at the start of the operands, followed by one space
                    173:        character.  At disassembly, nothing.
                    174:      D General register in bits <15:12> and <3:0>.
                    175:      f List of flags in bits <15:12> and <3:0>.
                    176:      i 6-bit signed immediate in bits <5:0>.
                    177:      I 6-bit unsigned immediate in bits <5:0>.
                    178:      M Size modifier (B, W or D) for CLEAR instructions.
                    179:      m Size modifier (B, W or D) in bits <5:4>
                    180:      N  A 32-bit dword, like in the difference between s and y.
                    181:         This has no effect on bits in the opcode.  Can also be expressed
                    182:        as "[pc+]" in input.
                    183:      n  As N, but PC-relative (to the start of the instruction).
                    184:      o [-128..127] word offset in bits <7:1> and <0>.  Used by 8-bit
                    185:        branch instructions.
                    186:      O [-128..127] offset in bits <7:0>.  Also matches a comma and a
                    187:        general register after the expression, in bits <15:12>.  Used
                    188:        only for the BDAP prefix insn (in v32 the ADDOQ insn; same opcode).
                    189:      P Special register in bits <15:12>.
                    190:      p Indicates that the insn is a prefix insn.  Must be first
                    191:        character.
                    192:      Q  As O, but don't relax; force an 8-bit offset.
                    193:      R General register in bits <15:12>.
                    194:      r General register in bits <3:0>.
                    195:      S Source operand in bit <10> and a prefix; a 3-operand prefix
                    196:        without side-effect.
                    197:      s Source operand in bits <10> and <3:0>, optionally with a
                    198:        side-effect prefix, except [pc] (the name, not R15 as in ACR)
                    199:        isn't allowed for v32 and higher.
                    200:      T  Support register in bits <15:12>.
                    201:      u  4-bit (PC-relative) unsigned immediate word offset in bits <3:0>.
                    202:      U  Relaxes to either u or n, instruction is assumed LAPCQ or LAPC.
                    203:        Not recognized at disassembly.
                    204:      x Register-dot-modifier, for example "r5.w" in bits <15:12> and <5:4>.
                    205:      y Like 's' but do not allow an integer at assembly.
                    206:      Y The difference s-y; only an integer is allowed.
                    207:      z Size modifier (B or W) in bit <4>.  */
                    208: 
                    209: 
                    210: /* Please note the order of the opcodes in this table is significant.
                    211:    The assembler requires that all instances of the same mnemonic must
                    212:    be consecutive.  If they aren't, the assembler might not recognize
                    213:    them, or may indicate an internal error.
                    214: 
                    215:    The disassembler should not normally care about the order of the
                    216:    opcodes, but will prefer an earlier alternative if the "match-score"
                    217:    (see cris-dis.c) is computed as equal.
                    218: 
                    219:    It should not be significant for proper execution that this table is
                    220:    in alphabetical order, but please follow that convention for an easy
                    221:    overview.  */
                    222: 
                    223: const struct cris_opcode
                    224: cris_opcodes[] =
                    225: {
                    226:   {"abs",     0x06B0, 0x0940,            "r,R",     0, SIZE_NONE,     0,
                    227:    cris_abs_op},
                    228: 
                    229:   {"add",     0x0600, 0x09c0,            "m r,R",   0, SIZE_NONE,     0,
                    230:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    231: 
                    232:   {"add",     0x0A00, 0x01c0,            "m s,R",   0, SIZE_FIELD,    0,
                    233:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    234: 
                    235:   {"add",     0x0A00, 0x01c0,            "m S,D",   0, SIZE_NONE,
                    236:    cris_ver_v0_10,
                    237:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    238: 
                    239:   {"add",     0x0a00, 0x05c0,            "m S,R,r", 0, SIZE_NONE,
                    240:    cris_ver_v0_10,
                    241:    cris_three_operand_add_sub_cmp_and_or_op},
                    242: 
                    243:   {"add",     0x0A00, 0x01c0,            "m s,R",   0, SIZE_FIELD,
                    244:    cris_ver_v32p,
                    245:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    246: 
                    247:   {"addc",    0x0570, 0x0A80,            "r,R",     0, SIZE_FIX_32,
                    248:    cris_ver_v32p,
                    249:    cris_not_implemented_op},
                    250: 
                    251:   {"addc",    0x09A0, 0x0250,            "s,R",     0, SIZE_FIX_32,
                    252:    cris_ver_v32p,
                    253:    cris_not_implemented_op},
                    254: 
                    255:   {"addi",    0x0540, 0x0A80,            "x,r,A",   0, SIZE_NONE,
                    256:    cris_ver_v32p,
                    257:    cris_addi_op},
                    258: 
                    259:   {"addi",    0x0500, 0x0Ac0,            "x,r",     0, SIZE_NONE,     0,
                    260:    cris_addi_op},
                    261: 
                    262:   /* This collates after "addo", but we want to disassemble as "addoq",
                    263:      not "addo".  */
                    264:   {"addoq",   0x0100, 0x0E00,            "Q,A",     0, SIZE_NONE,
                    265:    cris_ver_v32p,
                    266:    cris_not_implemented_op},
                    267: 
                    268:   {"addo",    0x0940, 0x0280,            "m s,R,A", 0, SIZE_FIELD_SIGNED,
                    269:    cris_ver_v32p,
                    270:    cris_not_implemented_op},
                    271: 
                    272:   /* This must be located after the insn above, lest we misinterpret
                    273:      "addo.b -1,r0,acr" as "addo .b-1,r0,acr".  FIXME: Sounds like a
                    274:      parser bug.  */
                    275:   {"addo",   0x0100, 0x0E00,             "O,A",     0, SIZE_NONE,
                    276:    cris_ver_v32p,
                    277:    cris_not_implemented_op},
                    278: 
                    279:   {"addq",    0x0200, 0x0Dc0,            "I,R",     0, SIZE_NONE,     0,
                    280:    cris_quick_mode_add_sub_op},
                    281: 
                    282:   {"adds",    0x0420, 0x0Bc0,            "z r,R",   0, SIZE_NONE,     0,
                    283:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    284: 
                    285:   /* FIXME: SIZE_FIELD_SIGNED and all necessary changes.  */
                    286:   {"adds",    0x0820, 0x03c0,            "z s,R",   0, SIZE_FIELD,    0,
                    287:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    288: 
                    289:   {"adds",    0x0820, 0x03c0,            "z S,D",   0, SIZE_NONE,
                    290:    cris_ver_v0_10,
                    291:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    292: 
                    293:   {"adds",    0x0820, 0x07c0,            "z S,R,r", 0, SIZE_NONE,
                    294:    cris_ver_v0_10,
                    295:    cris_three_operand_add_sub_cmp_and_or_op},
                    296: 
                    297:   {"addu",    0x0400, 0x0be0,            "z r,R",   0, SIZE_NONE,     0,
                    298:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    299: 
                    300:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                    301:   {"addu",    0x0800, 0x03e0,            "z s,R",   0, SIZE_FIELD,    0,
                    302:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    303: 
                    304:   {"addu",    0x0800, 0x03e0,            "z S,D",   0, SIZE_NONE,
                    305:    cris_ver_v0_10,
                    306:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    307: 
                    308:   {"addu",    0x0800, 0x07e0,            "z S,R,r", 0, SIZE_NONE,
                    309:    cris_ver_v0_10,
                    310:    cris_three_operand_add_sub_cmp_and_or_op},
                    311: 
                    312:   {"and",     0x0700, 0x08C0,            "m r,R",   0, SIZE_NONE,     0,
                    313:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    314: 
                    315:   {"and",     0x0B00, 0x00C0,            "m s,R",   0, SIZE_FIELD,    0,
                    316:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    317: 
                    318:   {"and",     0x0B00, 0x00C0,            "m S,D",   0, SIZE_NONE,
                    319:    cris_ver_v0_10,
                    320:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    321: 
                    322:   {"and",     0x0B00, 0x04C0,            "m S,R,r", 0, SIZE_NONE,
                    323:    cris_ver_v0_10,
                    324:    cris_three_operand_add_sub_cmp_and_or_op},
                    325: 
                    326:   {"andq",    0x0300, 0x0CC0,            "i,R",     0, SIZE_NONE,     0,
                    327:    cris_quick_mode_and_cmp_move_or_op},
                    328: 
                    329:   {"asr",     0x0780, 0x0840,            "m r,R",   0, SIZE_NONE,     0,
                    330:    cris_asr_op},
                    331: 
                    332:   {"asrq",    0x03a0, 0x0c40,            "c,R",     0, SIZE_NONE,     0,
                    333:    cris_asrq_op},
                    334: 
                    335:   {"ax",      0x15B0, 0xEA4F,            "",        0, SIZE_NONE,     0,
                    336:    cris_ax_ei_setf_op},
                    337: 
                    338:   /* FIXME: Should use branch #defines.  */
                    339:   {"b",              0x0dff, 0x0200,             "b",       1, SIZE_NONE,     0,
                    340:    cris_sixteen_bit_offset_branch_op},
                    341: 
                    342:   {"ba",
                    343:    BA_QUICK_OPCODE,
                    344:    0x0F00+(0xF-CC_A)*0x1000,             "o",       1, SIZE_NONE,     0,
                    345:    cris_eight_bit_offset_branch_op},
                    346: 
                    347:   /* Needs to come after the usual "ba o", which might be relaxed to
                    348:      this one.  */
                    349:   {"ba",     BA_DWORD_OPCODE,
                    350:    0xffff & (~BA_DWORD_OPCODE),                  "n",       0, SIZE_FIX_32,
                    351:    cris_ver_v32p,
                    352:    cris_none_reg_mode_jump_op},
                    353: 
                    354:   {"bas",     0x0EBF, 0x0140,            "n,P",     0, SIZE_FIX_32,
                    355:    cris_ver_v32p,
                    356:    cris_none_reg_mode_jump_op},
                    357: 
                    358:   {"basc",     0x0EFF, 0x0100,           "n,P",     0, SIZE_FIX_32,
                    359:    cris_ver_v32p,
                    360:    cris_none_reg_mode_jump_op},
                    361: 
                    362:   {"bcc",
                    363:    BRANCH_QUICK_OPCODE+CC_CC*0x1000,
                    364:    0x0f00+(0xF-CC_CC)*0x1000,            "o",       1, SIZE_NONE,     0,
                    365:    cris_eight_bit_offset_branch_op},
                    366: 
                    367:   {"bcs",
                    368:    BRANCH_QUICK_OPCODE+CC_CS*0x1000,
                    369:    0x0f00+(0xF-CC_CS)*0x1000,            "o",       1, SIZE_NONE,     0,
                    370:    cris_eight_bit_offset_branch_op},
                    371: 
                    372:   {"bdap",
                    373:    BDAP_INDIR_OPCODE, BDAP_INDIR_Z_BITS,  "pm s,R",  0, SIZE_FIELD_SIGNED,
                    374:    cris_ver_v0_10,
                    375:    cris_bdap_prefix},
                    376: 
                    377:   {"bdap",
                    378:    BDAP_QUICK_OPCODE, BDAP_QUICK_Z_BITS,  "pO",             0, SIZE_NONE,
                    379:    cris_ver_v0_10,
                    380:    cris_quick_mode_bdap_prefix},
                    381: 
                    382:   {"beq",
                    383:    BRANCH_QUICK_OPCODE+CC_EQ*0x1000,
                    384:    0x0f00+(0xF-CC_EQ)*0x1000,            "o",       1, SIZE_NONE,     0,
                    385:    cris_eight_bit_offset_branch_op},
                    386: 
                    387:   /* This is deliberately put before "bext" to trump it, even though not
                    388:      in alphabetical order, since we don't do excluding version checks
                    389:      for v0..v10.  */
                    390:   {"bwf",
                    391:    BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
                    392:    0x0f00+(0xF-CC_EXT)*0x1000,           "o",       1, SIZE_NONE,
                    393:    cris_ver_v10,
                    394:    cris_eight_bit_offset_branch_op},
                    395: 
                    396:   {"bext",
                    397:    BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
                    398:    0x0f00+(0xF-CC_EXT)*0x1000,           "o",       1, SIZE_NONE,
                    399:    cris_ver_v0_3,
                    400:    cris_eight_bit_offset_branch_op},
                    401: 
                    402:   {"bge",
                    403:    BRANCH_QUICK_OPCODE+CC_GE*0x1000,
                    404:    0x0f00+(0xF-CC_GE)*0x1000,            "o",       1, SIZE_NONE,     0,
                    405:    cris_eight_bit_offset_branch_op},
                    406: 
                    407:   {"bgt",
                    408:    BRANCH_QUICK_OPCODE+CC_GT*0x1000,
                    409:    0x0f00+(0xF-CC_GT)*0x1000,            "o",       1, SIZE_NONE,     0,
                    410:    cris_eight_bit_offset_branch_op},
                    411: 
                    412:   {"bhi",
                    413:    BRANCH_QUICK_OPCODE+CC_HI*0x1000,
                    414:    0x0f00+(0xF-CC_HI)*0x1000,            "o",       1, SIZE_NONE,     0,
                    415:    cris_eight_bit_offset_branch_op},
                    416: 
                    417:   {"bhs",
                    418:    BRANCH_QUICK_OPCODE+CC_HS*0x1000,
                    419:    0x0f00+(0xF-CC_HS)*0x1000,            "o",       1, SIZE_NONE,     0,
                    420:    cris_eight_bit_offset_branch_op},
                    421: 
                    422:   {"biap", BIAP_OPCODE, BIAP_Z_BITS,     "pm r,R",  0, SIZE_NONE,
                    423:    cris_ver_v0_10,
                    424:    cris_biap_prefix},
                    425: 
                    426:   {"ble",
                    427:    BRANCH_QUICK_OPCODE+CC_LE*0x1000,
                    428:    0x0f00+(0xF-CC_LE)*0x1000,            "o",       1, SIZE_NONE,     0,
                    429:    cris_eight_bit_offset_branch_op},
                    430: 
                    431:   {"blo",
                    432:    BRANCH_QUICK_OPCODE+CC_LO*0x1000,
                    433:    0x0f00+(0xF-CC_LO)*0x1000,            "o",       1, SIZE_NONE,     0,
                    434:    cris_eight_bit_offset_branch_op},
                    435: 
                    436:   {"bls",
                    437:    BRANCH_QUICK_OPCODE+CC_LS*0x1000,
                    438:    0x0f00+(0xF-CC_LS)*0x1000,            "o",       1, SIZE_NONE,     0,
                    439:    cris_eight_bit_offset_branch_op},
                    440: 
                    441:   {"blt",
                    442:    BRANCH_QUICK_OPCODE+CC_LT*0x1000,
                    443:    0x0f00+(0xF-CC_LT)*0x1000,            "o",       1, SIZE_NONE,     0,
                    444:    cris_eight_bit_offset_branch_op},
                    445: 
                    446:   {"bmi",
                    447:    BRANCH_QUICK_OPCODE+CC_MI*0x1000,
                    448:    0x0f00+(0xF-CC_MI)*0x1000,            "o",       1, SIZE_NONE,     0,
                    449:    cris_eight_bit_offset_branch_op},
                    450: 
                    451:   {"bmod",    0x0ab0, 0x0140,            "s,R",     0, SIZE_FIX_32,
                    452:    cris_ver_sim_v0_10,
                    453:    cris_not_implemented_op},
                    454: 
                    455:   {"bmod",    0x0ab0, 0x0140,            "S,D",     0, SIZE_NONE,
                    456:    cris_ver_sim_v0_10,
                    457:    cris_not_implemented_op},
                    458: 
                    459:   {"bmod",    0x0ab0, 0x0540,            "S,R,r",   0, SIZE_NONE,
                    460:    cris_ver_sim_v0_10,
                    461:    cris_not_implemented_op},
                    462: 
                    463:   {"bne",
                    464:    BRANCH_QUICK_OPCODE+CC_NE*0x1000,
                    465:    0x0f00+(0xF-CC_NE)*0x1000,            "o",       1, SIZE_NONE,     0,
                    466:    cris_eight_bit_offset_branch_op},
                    467: 
                    468:   {"bound",   0x05c0, 0x0A00,            "m r,R",   0, SIZE_NONE,     0,
                    469:    cris_two_operand_bound_op},
                    470:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                    471:   {"bound",   0x09c0, 0x0200,            "m s,R",   0, SIZE_FIELD,
                    472:    cris_ver_v0_10,
                    473:    cris_two_operand_bound_op},
                    474:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                    475:   {"bound",   0x0dcf, 0x0200,            "m Y,R",   0, SIZE_FIELD,    0,
                    476:    cris_two_operand_bound_op},
                    477:   {"bound",   0x09c0, 0x0200,            "m S,D",   0, SIZE_NONE,
                    478:    cris_ver_v0_10,
                    479:    cris_two_operand_bound_op},
                    480:   {"bound",   0x09c0, 0x0600,            "m S,R,r", 0, SIZE_NONE,
                    481:    cris_ver_v0_10,
                    482:    cris_three_operand_bound_op},
                    483: 
                    484:   {"bpl",
                    485:    BRANCH_QUICK_OPCODE+CC_PL*0x1000,
                    486:    0x0f00+(0xF-CC_PL)*0x1000,            "o",       1, SIZE_NONE,     0,
                    487:    cris_eight_bit_offset_branch_op},
                    488: 
                    489:   {"break",   0xe930, 0x16c0,            "C",       0, SIZE_NONE,
                    490:    cris_ver_v3p,
                    491:    cris_break_op},
                    492: 
                    493:   {"bsb",
                    494:    BRANCH_QUICK_OPCODE+CC_EXT*0x1000,
                    495:    0x0f00+(0xF-CC_EXT)*0x1000,           "o",       1, SIZE_NONE,
                    496:    cris_ver_v32p,
                    497:    cris_eight_bit_offset_branch_op},
                    498: 
                    499:   {"bsr",     0xBEBF, 0x4140,            "n",       0, SIZE_FIX_32,
                    500:    cris_ver_v32p,
                    501:    cris_none_reg_mode_jump_op},
                    502: 
                    503:   {"bsrc",     0xBEFF, 0x4100,           "n",       0, SIZE_FIX_32,
                    504:    cris_ver_v32p,
                    505:    cris_none_reg_mode_jump_op},
                    506: 
                    507:   {"bstore",  0x0af0, 0x0100,            "s,R",     0, SIZE_FIX_32,
                    508:    cris_ver_warning,
                    509:    cris_not_implemented_op},
                    510: 
                    511:   {"bstore",  0x0af0, 0x0100,            "S,D",     0, SIZE_NONE,
                    512:    cris_ver_warning,
                    513:    cris_not_implemented_op},
                    514: 
                    515:   {"bstore",  0x0af0, 0x0500,            "S,R,r",   0, SIZE_NONE,
                    516:    cris_ver_warning,
                    517:    cris_not_implemented_op},
                    518: 
                    519:   {"btst",    0x04F0, 0x0B00,            "r,R",     0, SIZE_NONE,     0,
                    520:    cris_btst_nop_op},
                    521:   {"btstq",   0x0380, 0x0C60,            "c,R",     0, SIZE_NONE,     0,
                    522:    cris_btst_nop_op},
                    523: 
                    524:   {"bvc",
                    525:    BRANCH_QUICK_OPCODE+CC_VC*0x1000,
                    526:    0x0f00+(0xF-CC_VC)*0x1000,            "o",       1, SIZE_NONE,     0,
                    527:    cris_eight_bit_offset_branch_op},
                    528: 
                    529:   {"bvs",
                    530:    BRANCH_QUICK_OPCODE+CC_VS*0x1000,
                    531:    0x0f00+(0xF-CC_VS)*0x1000,            "o",       1, SIZE_NONE,     0,
                    532:    cris_eight_bit_offset_branch_op},
                    533: 
                    534:   {"clear",   0x0670, 0x3980,            "M r",     0, SIZE_NONE,     0,
                    535:    cris_reg_mode_clear_op},
                    536: 
                    537:   {"clear",   0x0A70, 0x3180,            "M y",     0, SIZE_NONE,     0,
                    538:    cris_none_reg_mode_clear_test_op},
                    539: 
                    540:   {"clear",   0x0A70, 0x3180,            "M S",     0, SIZE_NONE,
                    541:    cris_ver_v0_10,
                    542:    cris_none_reg_mode_clear_test_op},
                    543: 
                    544:   {"clearf",  0x05F0, 0x0A00,            "f",       0, SIZE_NONE,     0,
                    545:    cris_clearf_di_op},
                    546: 
                    547:   {"cmp",     0x06C0, 0x0900,            "m r,R",   0, SIZE_NONE,     0,
                    548:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    549: 
                    550:   {"cmp",     0x0Ac0, 0x0100,            "m s,R",   0, SIZE_FIELD,    0,
                    551:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    552: 
                    553:   {"cmp",     0x0Ac0, 0x0100,            "m S,D",   0, SIZE_NONE,
                    554:    cris_ver_v0_10,
                    555:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    556: 
                    557:   {"cmpq",    0x02C0, 0x0D00,            "i,R",     0, SIZE_NONE,     0,
                    558:    cris_quick_mode_and_cmp_move_or_op},
                    559: 
                    560:   /* FIXME: SIZE_FIELD_SIGNED and all necessary changes.  */
                    561:   {"cmps",    0x08e0, 0x0300,            "z s,R",   0, SIZE_FIELD,    0,
                    562:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    563: 
                    564:   {"cmps",    0x08e0, 0x0300,            "z S,D",   0, SIZE_NONE,
                    565:    cris_ver_v0_10,
                    566:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    567: 
                    568:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                    569:   {"cmpu",    0x08c0, 0x0320,            "z s,R" ,  0, SIZE_FIELD,    0,
                    570:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    571: 
                    572:   {"cmpu",    0x08c0, 0x0320,            "z S,D",   0, SIZE_NONE,
                    573:    cris_ver_v0_10,
                    574:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    575: 
                    576:   {"di",      0x25F0, 0xDA0F,            "",        0, SIZE_NONE,     0,
                    577:    cris_clearf_di_op},
                    578: 
                    579:   {"dip",     DIP_OPCODE, DIP_Z_BITS,    "ps",      0, SIZE_FIX_32,
                    580:    cris_ver_v0_10,
                    581:    cris_dip_prefix},
                    582: 
                    583:   {"div",     0x0980, 0x0640,            "m R,r",   0, SIZE_FIELD,    0,
                    584:    cris_not_implemented_op},
                    585: 
                    586:   {"dstep",   0x06f0, 0x0900,            "r,R",     0, SIZE_NONE,     0,
                    587:    cris_dstep_logshift_mstep_neg_not_op},
                    588: 
                    589:   {"ei",      0x25B0, 0xDA4F,            "",        0, SIZE_NONE,     0,
                    590:    cris_ax_ei_setf_op},
                    591: 
                    592:   {"fidxd",    0x0ab0, 0xf540,           "[r]",     0, SIZE_NONE,
                    593:    cris_ver_v32p,
                    594:    cris_not_implemented_op},
                    595: 
                    596:   {"fidxi",    0x0d30, 0xF2C0,           "[r]",     0, SIZE_NONE,
                    597:    cris_ver_v32p,
                    598:    cris_not_implemented_op},
                    599: 
                    600:   {"ftagd",    0x1AB0, 0xE540,           "[r]",     0, SIZE_NONE,
                    601:    cris_ver_v32p,
                    602:    cris_not_implemented_op},
                    603: 
                    604:   {"ftagi",    0x1D30, 0xE2C0,           "[r]",     0, SIZE_NONE,
                    605:    cris_ver_v32p,
                    606:    cris_not_implemented_op},
                    607: 
                    608:   {"halt",    0xF930, 0x06CF,            "",        0, SIZE_NONE,
                    609:    cris_ver_v32p,
                    610:    cris_not_implemented_op},
                    611: 
                    612:   {"jas",    0x09B0, 0x0640,             "r,P",     0, SIZE_NONE,
                    613:    cris_ver_v32p,
                    614:    cris_reg_mode_jump_op},
                    615: 
                    616:   {"jas",    0x0DBF, 0x0240,             "N,P",     0, SIZE_FIX_32,
                    617:    cris_ver_v32p,
                    618:    cris_reg_mode_jump_op},
                    619: 
                    620:   {"jasc",    0x0B30, 0x04C0,            "r,P",     0, SIZE_NONE,
                    621:    cris_ver_v32p,
                    622:    cris_reg_mode_jump_op},
                    623: 
                    624:   {"jasc",    0x0F3F, 0x00C0,            "N,P",     0, SIZE_FIX_32,
                    625:    cris_ver_v32p,
                    626:    cris_reg_mode_jump_op},
                    627: 
                    628:   {"jbrc",    0x69b0, 0x9640,            "r",       0, SIZE_NONE,
                    629:    cris_ver_v8_10,
                    630:    cris_reg_mode_jump_op},
                    631: 
                    632:   {"jbrc",    0x6930, 0x92c0,            "s",       0, SIZE_FIX_32,
                    633:    cris_ver_v8_10,
                    634:    cris_none_reg_mode_jump_op},
                    635: 
                    636:   {"jbrc",    0x6930, 0x92c0,            "S",       0, SIZE_NONE,
                    637:    cris_ver_v8_10,
                    638:    cris_none_reg_mode_jump_op},
                    639: 
                    640:   {"jir",     0xA9b0, 0x5640,            "r",       0, SIZE_NONE,
                    641:    cris_ver_v8_10,
                    642:    cris_reg_mode_jump_op},
                    643: 
                    644:   {"jir",     0xA930, 0x52c0,            "s",       0, SIZE_FIX_32,
                    645:    cris_ver_v8_10,
                    646:    cris_none_reg_mode_jump_op},
                    647: 
                    648:   {"jir",     0xA930, 0x52c0,            "S",       0, SIZE_NONE,
                    649:    cris_ver_v8_10,
                    650:    cris_none_reg_mode_jump_op},
                    651: 
                    652:   {"jirc",    0x29b0, 0xd640,            "r",       0, SIZE_NONE,
                    653:    cris_ver_v8_10,
                    654:    cris_reg_mode_jump_op},
                    655: 
                    656:   {"jirc",    0x2930, 0xd2c0,            "s",       0, SIZE_FIX_32,
                    657:    cris_ver_v8_10,
                    658:    cris_none_reg_mode_jump_op},
                    659: 
                    660:   {"jirc",    0x2930, 0xd2c0,            "S",       0, SIZE_NONE,
                    661:    cris_ver_v8_10,
                    662:    cris_none_reg_mode_jump_op},
                    663: 
                    664:   {"jsr",     0xB9b0, 0x4640,            "r",       0, SIZE_NONE,     0,
                    665:    cris_reg_mode_jump_op},
                    666: 
                    667:   {"jsr",     0xB930, 0x42c0,            "s",       0, SIZE_FIX_32,
                    668:    cris_ver_v0_10,
                    669:    cris_none_reg_mode_jump_op},
                    670: 
                    671:   {"jsr",     0xBDBF, 0x4240,            "N",       0, SIZE_FIX_32,
                    672:    cris_ver_v32p,
                    673:    cris_none_reg_mode_jump_op},
                    674: 
                    675:   {"jsr",     0xB930, 0x42c0,            "S",       0, SIZE_NONE,
                    676:    cris_ver_v0_10,
                    677:    cris_none_reg_mode_jump_op},
                    678: 
                    679:   {"jsrc",    0x39b0, 0xc640,            "r",       0, SIZE_NONE,
                    680:    cris_ver_v8_10,
                    681:    cris_reg_mode_jump_op},
                    682: 
                    683:   {"jsrc",    0x3930, 0xc2c0,            "s",       0, SIZE_FIX_32,
                    684:    cris_ver_v8_10,
                    685:    cris_none_reg_mode_jump_op},
                    686: 
                    687:   {"jsrc",    0x3930, 0xc2c0,            "S",       0, SIZE_NONE,
                    688:    cris_ver_v8_10,
                    689:    cris_none_reg_mode_jump_op},
                    690: 
                    691:   {"jsrc",    0xBB30, 0x44C0,            "r",       0, SIZE_NONE,
                    692:    cris_ver_v32p,
                    693:    cris_reg_mode_jump_op},
                    694: 
                    695:   {"jsrc",    0xBF3F, 0x40C0,            "N",       0, SIZE_FIX_32,
                    696:    cris_ver_v32p,
                    697:    cris_reg_mode_jump_op},
                    698: 
                    699:   {"jump",    0x09b0, 0xF640,            "r",       0, SIZE_NONE,     0,
                    700:    cris_reg_mode_jump_op},
                    701: 
                    702:   {"jump",
                    703:    JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS,  "s",      0, SIZE_FIX_32,
                    704:    cris_ver_v0_10,
                    705:    cris_none_reg_mode_jump_op},
                    706: 
                    707:   {"jump",
                    708:    JUMP_INDIR_OPCODE, JUMP_INDIR_Z_BITS,  "S",      0, SIZE_NONE,
                    709:    cris_ver_v0_10,
                    710:    cris_none_reg_mode_jump_op},
                    711: 
                    712:   {"jump",    0x09F0, 0x060F,            "P",       0, SIZE_NONE,
                    713:    cris_ver_v32p,
                    714:    cris_none_reg_mode_jump_op},
                    715: 
                    716:   {"jump",
                    717:    JUMP_PC_INCR_OPCODE_V32,
                    718:    (0xffff & ~JUMP_PC_INCR_OPCODE_V32),          "N",       0, SIZE_FIX_32,
                    719:    cris_ver_v32p,
                    720:    cris_none_reg_mode_jump_op},
                    721: 
                    722:   {"jmpu",    0x8930, 0x72c0,            "s",       0, SIZE_FIX_32,
                    723:    cris_ver_v10,
                    724:    cris_none_reg_mode_jump_op},
                    725: 
                    726:   {"jmpu",    0x8930, 0x72c0,             "S",      0, SIZE_NONE,
                    727:    cris_ver_v10,
                    728:    cris_none_reg_mode_jump_op},
                    729: 
                    730:   {"lapc",    0x0970, 0x0680,            "U,R",    0, SIZE_NONE,
                    731:    cris_ver_v32p,
                    732:    cris_not_implemented_op},
                    733: 
                    734:   {"lapc",    0x0D7F, 0x0280,            "dn,R",    0, SIZE_FIX_32,
                    735:    cris_ver_v32p,
                    736:    cris_not_implemented_op},
                    737: 
                    738:   {"lapcq",   0x0970, 0x0680,            "u,R",     0, SIZE_NONE,
                    739:    cris_ver_v32p,
                    740:    cris_addi_op},
                    741: 
                    742:   {"lsl",     0x04C0, 0x0B00,            "m r,R",   0, SIZE_NONE,     0,
                    743:    cris_dstep_logshift_mstep_neg_not_op},
                    744: 
                    745:   {"lslq",    0x03c0, 0x0C20,            "c,R",     0, SIZE_NONE,     0,
                    746:    cris_dstep_logshift_mstep_neg_not_op},
                    747: 
                    748:   {"lsr",     0x07C0, 0x0800,            "m r,R",   0, SIZE_NONE,     0,
                    749:    cris_dstep_logshift_mstep_neg_not_op},
                    750: 
                    751:   {"lsrq",    0x03e0, 0x0C00,            "c,R",     0, SIZE_NONE,     0,
                    752:    cris_dstep_logshift_mstep_neg_not_op},
                    753: 
                    754:   {"lz",      0x0730, 0x08C0,            "r,R",     0, SIZE_NONE,
                    755:    cris_ver_v3p,
                    756:    cris_not_implemented_op},
                    757: 
                    758:   {"mcp",      0x07f0, 0x0800,           "P,r",     0, SIZE_NONE,
                    759:    cris_ver_v32p,
                    760:    cris_not_implemented_op},
                    761: 
                    762:   {"move",    0x0640, 0x0980,            "m r,R",   0, SIZE_NONE,     0,
                    763:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    764: 
                    765:   {"move",    0x0A40, 0x0180,            "m s,R",   0, SIZE_FIELD,    0,
                    766:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    767: 
                    768:   {"move",    0x0A40, 0x0180,            "m S,D",   0, SIZE_NONE,
                    769:    cris_ver_v0_10,
                    770:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    771: 
                    772:   {"move",    0x0630, 0x09c0,            "r,P",     0, SIZE_NONE,     0,
                    773:    cris_move_to_preg_op},
                    774: 
                    775:   {"move",    0x0670, 0x0980,            "P,r",     0, SIZE_NONE,     0,
                    776:    cris_reg_mode_move_from_preg_op},
                    777: 
                    778:   {"move",    0x0BC0, 0x0000,            "m R,y",   0, SIZE_FIELD,    0,
                    779:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    780: 
                    781:   {"move",    0x0BC0, 0x0000,            "m D,S",   0, SIZE_NONE,
                    782:    cris_ver_v0_10,
                    783:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    784: 
                    785:   {"move",
                    786:    MOVE_M_TO_PREG_OPCODE, MOVE_M_TO_PREG_ZBITS,
                    787:    "s,P",   0, SIZE_SPEC_REG, 0,
                    788:    cris_move_to_preg_op},
                    789: 
                    790:   {"move",    0x0A30, 0x01c0,            "S,P",     0, SIZE_NONE,
                    791:    cris_ver_v0_10,
                    792:    cris_move_to_preg_op},
                    793: 
                    794:   {"move",    0x0A70, 0x0180,            "P,y",     0, SIZE_SPEC_REG, 0,
                    795:    cris_none_reg_mode_move_from_preg_op},
                    796: 
                    797:   {"move",    0x0A70, 0x0180,            "P,S",     0, SIZE_NONE,
                    798:    cris_ver_v0_10,
                    799:    cris_none_reg_mode_move_from_preg_op},
                    800: 
                    801:   {"move",    0x0B70, 0x0480,            "r,T",     0, SIZE_NONE,
                    802:    cris_ver_v32p,
                    803:    cris_not_implemented_op},
                    804: 
                    805:   {"move",    0x0F70, 0x0080,            "T,r",     0, SIZE_NONE,
                    806:    cris_ver_v32p,
                    807:    cris_not_implemented_op},
                    808: 
                    809:   {"movem",   0x0BF0, 0x0000,            "R,y",     0, SIZE_FIX_32,   0,
                    810:    cris_move_reg_to_mem_movem_op},
                    811: 
                    812:   {"movem",   0x0BF0, 0x0000,            "D,S",     0, SIZE_NONE,
                    813:    cris_ver_v0_10,
                    814:    cris_move_reg_to_mem_movem_op},
                    815: 
                    816:   {"movem",   0x0BB0, 0x0040,            "s,R",     0, SIZE_FIX_32,   0,
                    817:    cris_move_mem_to_reg_movem_op},
                    818: 
                    819:   {"movem",   0x0BB0, 0x0040,            "S,D",     0, SIZE_NONE,
                    820:    cris_ver_v0_10,
                    821:    cris_move_mem_to_reg_movem_op},
                    822: 
                    823:   {"moveq",   0x0240, 0x0D80,            "i,R",     0, SIZE_NONE,     0,
                    824:    cris_quick_mode_and_cmp_move_or_op},
                    825: 
                    826:   {"movs",    0x0460, 0x0B80,            "z r,R",   0, SIZE_NONE,     0,
                    827:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    828: 
                    829:   /* FIXME: SIZE_FIELD_SIGNED and all necessary changes.  */
                    830:   {"movs",    0x0860, 0x0380,            "z s,R",   0, SIZE_FIELD,    0,
                    831:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    832: 
                    833:   {"movs",    0x0860, 0x0380,            "z S,D",   0, SIZE_NONE,
                    834:    cris_ver_v0_10,
                    835:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    836: 
                    837:   {"movu",    0x0440, 0x0Ba0,            "z r,R",   0, SIZE_NONE,     0,
                    838:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    839: 
                    840:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                    841:   {"movu",    0x0840, 0x03a0,            "z s,R",   0, SIZE_FIELD,    0,
                    842:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    843: 
                    844:   {"movu",    0x0840, 0x03a0,            "z S,D",   0, SIZE_NONE,
                    845:    cris_ver_v0_10,
                    846:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    847: 
                    848:   {"mstep",   0x07f0, 0x0800,            "r,R",     0, SIZE_NONE,
                    849:    cris_ver_v0_10,
                    850:    cris_dstep_logshift_mstep_neg_not_op},
                    851: 
                    852:   {"muls",    0x0d00, 0x02c0,            "m r,R",   0, SIZE_NONE,
                    853:    cris_ver_v10p,
                    854:    cris_muls_op},
                    855: 
                    856:   {"mulu",    0x0900, 0x06c0,            "m r,R",   0, SIZE_NONE,
                    857:    cris_ver_v10p,
                    858:    cris_mulu_op},
                    859: 
                    860:   {"neg",     0x0580, 0x0A40,            "m r,R",   0, SIZE_NONE,     0,
                    861:    cris_dstep_logshift_mstep_neg_not_op},
                    862: 
                    863:   {"nop",     NOP_OPCODE, NOP_Z_BITS,    "",        0, SIZE_NONE,
                    864:    cris_ver_v0_10,
                    865:    cris_btst_nop_op},
                    866: 
                    867:   {"nop",     NOP_OPCODE_V32, NOP_Z_BITS_V32, "",    0, SIZE_NONE,
                    868:    cris_ver_v32p,
                    869:    cris_btst_nop_op},
                    870: 
                    871:   {"not",     0x8770, 0x7880,            "r",       0, SIZE_NONE,     0,
                    872:    cris_dstep_logshift_mstep_neg_not_op},
                    873: 
                    874:   {"or",      0x0740, 0x0880,            "m r,R",   0, SIZE_NONE,     0,
                    875:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                    876: 
                    877:   {"or",      0x0B40, 0x0080,            "m s,R",   0, SIZE_FIELD,    0,
                    878:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    879: 
                    880:   {"or",      0x0B40, 0x0080,            "m S,D",   0, SIZE_NONE,
                    881:    cris_ver_v0_10,
                    882:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    883: 
                    884:   {"or",      0x0B40, 0x0480,            "m S,R,r", 0, SIZE_NONE,
                    885:    cris_ver_v0_10,
                    886:    cris_three_operand_add_sub_cmp_and_or_op},
                    887: 
                    888:   {"orq",     0x0340, 0x0C80,            "i,R",     0, SIZE_NONE,     0,
                    889:    cris_quick_mode_and_cmp_move_or_op},
                    890: 
                    891:   {"pop",     0x0E6E, 0x0191,            "!R",      0, SIZE_NONE,
                    892:    cris_ver_v0_10,
                    893:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    894: 
                    895:   {"pop",     0x0e3e, 0x01c1,            "!P",      0, SIZE_NONE,
                    896:    cris_ver_v0_10,
                    897:    cris_none_reg_mode_move_from_preg_op},
                    898: 
                    899:   {"push",    0x0FEE, 0x0011,            "BR",      0, SIZE_NONE,
                    900:    cris_ver_v0_10,
                    901:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                    902: 
                    903:   {"push",    0x0E7E, 0x0181,            "BP",      0, SIZE_NONE,
                    904:    cris_ver_v0_10,
                    905:    cris_move_to_preg_op},
                    906: 
                    907:   {"rbf",     0x3b30, 0xc0c0,            "y",       0, SIZE_NONE,
                    908:    cris_ver_v10,
                    909:    cris_not_implemented_op},
                    910: 
                    911:   {"rbf",     0x3b30, 0xc0c0,            "S",       0, SIZE_NONE,
                    912:    cris_ver_v10,
                    913:    cris_not_implemented_op},
                    914: 
                    915:   {"rfe",     0x2930, 0xD6CF,            "",        0, SIZE_NONE,
                    916:    cris_ver_v32p,
                    917:    cris_not_implemented_op},
                    918: 
                    919:   {"rfg",     0x4930, 0xB6CF,            "",        0, SIZE_NONE,
                    920:    cris_ver_v32p,
                    921:    cris_not_implemented_op},
                    922: 
                    923:   {"rfn",     0x5930, 0xA6CF,            "",        0, SIZE_NONE,
                    924:    cris_ver_v32p,
                    925:    cris_not_implemented_op},
                    926: 
                    927:   {"ret",     0xB67F, 0x4980,            "",        1, SIZE_NONE,
                    928:    cris_ver_v0_10,
                    929:    cris_reg_mode_move_from_preg_op},
                    930: 
                    931:   {"ret",     0xB9F0, 0x460F,            "",        1, SIZE_NONE,
                    932:    cris_ver_v32p,
                    933:    cris_reg_mode_move_from_preg_op},
                    934: 
                    935:   {"retb",    0xe67f, 0x1980,            "",        1, SIZE_NONE,
                    936:    cris_ver_v0_10,
                    937:    cris_reg_mode_move_from_preg_op},
                    938: 
                    939:   {"rete",     0xA9F0, 0x560F,           "",        1, SIZE_NONE,
                    940:    cris_ver_v32p,
                    941:    cris_reg_mode_move_from_preg_op},
                    942: 
                    943:   {"reti",    0xA67F, 0x5980,            "",        1, SIZE_NONE,
                    944:    cris_ver_v0_10,
                    945:    cris_reg_mode_move_from_preg_op},
                    946: 
                    947:   {"retn",     0xC9F0, 0x360F,           "",        1, SIZE_NONE,
                    948:    cris_ver_v32p,
                    949:    cris_reg_mode_move_from_preg_op},
                    950: 
                    951:   {"sbfs",    0x3b70, 0xc080,            "y",       0, SIZE_NONE,
                    952:    cris_ver_v10,
                    953:    cris_not_implemented_op},
                    954: 
                    955:   {"sbfs",    0x3b70, 0xc080,            "S",       0, SIZE_NONE,
                    956:    cris_ver_v10,
                    957:    cris_not_implemented_op},
                    958: 
                    959:   {"sa",
                    960:    0x0530+CC_A*0x1000,
                    961:    0x0AC0+(0xf-CC_A)*0x1000,             "r",       0, SIZE_NONE,     0,
                    962:    cris_scc_op},
                    963: 
                    964:   {"ssb",
                    965:    0x0530+CC_EXT*0x1000,
                    966:    0x0AC0+(0xf-CC_EXT)*0x1000,           "r",       0, SIZE_NONE,
                    967:    cris_ver_v32p,
                    968:    cris_scc_op},
                    969: 
                    970:   {"scc",
                    971:    0x0530+CC_CC*0x1000,
                    972:    0x0AC0+(0xf-CC_CC)*0x1000,            "r",       0, SIZE_NONE,     0,
                    973:    cris_scc_op},
                    974: 
                    975:   {"scs",
                    976:    0x0530+CC_CS*0x1000,
                    977:    0x0AC0+(0xf-CC_CS)*0x1000,            "r",       0, SIZE_NONE,     0,
                    978:    cris_scc_op},
                    979: 
                    980:   {"seq",
                    981:    0x0530+CC_EQ*0x1000,
                    982:    0x0AC0+(0xf-CC_EQ)*0x1000,            "r",       0, SIZE_NONE,     0,
                    983:    cris_scc_op},
                    984: 
                    985:   {"setf",    0x05b0, 0x0A40,            "f",       0, SIZE_NONE,     0,
                    986:    cris_ax_ei_setf_op},
                    987: 
                    988:   {"sfe",    0x3930, 0xC6CF,             "",        0, SIZE_NONE,
                    989:    cris_ver_v32p,
                    990:    cris_not_implemented_op},
                    991: 
                    992:   /* Need to have "swf" in front of "sext" so it is the one displayed in
                    993:      disassembly.  */
                    994:   {"swf",
                    995:    0x0530+CC_EXT*0x1000,
                    996:    0x0AC0+(0xf-CC_EXT)*0x1000,           "r",       0, SIZE_NONE,
                    997:    cris_ver_v10,
                    998:    cris_scc_op},
                    999: 
                   1000:   {"sext",
                   1001:    0x0530+CC_EXT*0x1000,
                   1002:    0x0AC0+(0xf-CC_EXT)*0x1000,           "r",       0, SIZE_NONE,
                   1003:    cris_ver_v0_3,
                   1004:    cris_scc_op},
                   1005: 
                   1006:   {"sge",
                   1007:    0x0530+CC_GE*0x1000,
                   1008:    0x0AC0+(0xf-CC_GE)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1009:    cris_scc_op},
                   1010: 
                   1011:   {"sgt",
                   1012:    0x0530+CC_GT*0x1000,
                   1013:    0x0AC0+(0xf-CC_GT)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1014:    cris_scc_op},
                   1015: 
                   1016:   {"shi",
                   1017:    0x0530+CC_HI*0x1000,
                   1018:    0x0AC0+(0xf-CC_HI)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1019:    cris_scc_op},
                   1020: 
                   1021:   {"shs",
                   1022:    0x0530+CC_HS*0x1000,
                   1023:    0x0AC0+(0xf-CC_HS)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1024:    cris_scc_op},
                   1025: 
                   1026:   {"sle",
                   1027:    0x0530+CC_LE*0x1000,
                   1028:    0x0AC0+(0xf-CC_LE)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1029:    cris_scc_op},
                   1030: 
                   1031:   {"slo",
                   1032:    0x0530+CC_LO*0x1000,
                   1033:    0x0AC0+(0xf-CC_LO)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1034:    cris_scc_op},
                   1035: 
                   1036:   {"sls",
                   1037:    0x0530+CC_LS*0x1000,
                   1038:    0x0AC0+(0xf-CC_LS)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1039:    cris_scc_op},
                   1040: 
                   1041:   {"slt",
                   1042:    0x0530+CC_LT*0x1000,
                   1043:    0x0AC0+(0xf-CC_LT)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1044:    cris_scc_op},
                   1045: 
                   1046:   {"smi",
                   1047:    0x0530+CC_MI*0x1000,
                   1048:    0x0AC0+(0xf-CC_MI)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1049:    cris_scc_op},
                   1050: 
                   1051:   {"sne",
                   1052:    0x0530+CC_NE*0x1000,
                   1053:    0x0AC0+(0xf-CC_NE)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1054:    cris_scc_op},
                   1055: 
                   1056:   {"spl",
                   1057:    0x0530+CC_PL*0x1000,
                   1058:    0x0AC0+(0xf-CC_PL)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1059:    cris_scc_op},
                   1060: 
                   1061:   {"sub",     0x0680, 0x0940,            "m r,R",   0, SIZE_NONE,     0,
                   1062:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                   1063: 
                   1064:   {"sub",     0x0a80, 0x0140,            "m s,R",   0, SIZE_FIELD,    0,
                   1065:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1066: 
                   1067:   {"sub",     0x0a80, 0x0140,            "m S,D",   0, SIZE_NONE,
                   1068:    cris_ver_v0_10,
                   1069:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1070: 
                   1071:   {"sub",     0x0a80, 0x0540,            "m S,R,r", 0, SIZE_NONE,
                   1072:    cris_ver_v0_10,
                   1073:    cris_three_operand_add_sub_cmp_and_or_op},
                   1074: 
                   1075:   {"subq",    0x0280, 0x0d40,            "I,R",     0, SIZE_NONE,     0,
                   1076:    cris_quick_mode_add_sub_op},
                   1077: 
                   1078:   {"subs",    0x04a0, 0x0b40,            "z r,R",   0, SIZE_NONE,     0,
                   1079:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                   1080: 
                   1081:   /* FIXME: SIZE_FIELD_SIGNED and all necessary changes.  */
                   1082:   {"subs",    0x08a0, 0x0340,            "z s,R",   0, SIZE_FIELD,    0,
                   1083:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1084: 
                   1085:   {"subs",    0x08a0, 0x0340,            "z S,D",   0, SIZE_NONE,
                   1086:    cris_ver_v0_10,
                   1087:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1088: 
                   1089:   {"subs",    0x08a0, 0x0740,            "z S,R,r", 0, SIZE_NONE,
                   1090:    cris_ver_v0_10,
                   1091:    cris_three_operand_add_sub_cmp_and_or_op},
                   1092: 
                   1093:   {"subu",    0x0480, 0x0b60,            "z r,R",   0, SIZE_NONE,     0,
                   1094:    cris_reg_mode_add_sub_cmp_and_or_move_op},
                   1095: 
                   1096:   /* FIXME: SIZE_FIELD_UNSIGNED and all necessary changes.  */
                   1097:   {"subu",    0x0880, 0x0360,            "z s,R",   0, SIZE_FIELD,    0,
                   1098:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1099: 
                   1100:   {"subu",    0x0880, 0x0360,            "z S,D",   0, SIZE_NONE,
                   1101:    cris_ver_v0_10,
                   1102:    cris_none_reg_mode_add_sub_cmp_and_or_move_op},
                   1103: 
                   1104:   {"subu",    0x0880, 0x0760,            "z S,R,r", 0, SIZE_NONE,
                   1105:    cris_ver_v0_10,
                   1106:    cris_three_operand_add_sub_cmp_and_or_op},
                   1107: 
                   1108:   {"svc",
                   1109:    0x0530+CC_VC*0x1000,
                   1110:    0x0AC0+(0xf-CC_VC)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1111:    cris_scc_op},
                   1112: 
                   1113:   {"svs",
                   1114:    0x0530+CC_VS*0x1000,
                   1115:    0x0AC0+(0xf-CC_VS)*0x1000,            "r",       0, SIZE_NONE,     0,
                   1116:    cris_scc_op},
                   1117: 
                   1118:   /* The insn "swapn" is the same as "not" and will be disassembled as
                   1119:      such, but the swap* family of mnmonics are generally v8-and-higher
                   1120:      only, so count it in.  */
                   1121:   {"swapn",   0x8770, 0x7880,            "r",       0, SIZE_NONE,
                   1122:    cris_ver_v8p,
                   1123:    cris_not_implemented_op},
                   1124: 
                   1125:   {"swapw",   0x4770, 0xb880,            "r",       0, SIZE_NONE,
                   1126:    cris_ver_v8p,
                   1127:    cris_not_implemented_op},
                   1128: 
                   1129:   {"swapnw",  0xc770, 0x3880,            "r",       0, SIZE_NONE,
                   1130:    cris_ver_v8p,
                   1131:    cris_not_implemented_op},
                   1132: 
                   1133:   {"swapb",   0x2770, 0xd880,            "r",       0, SIZE_NONE,
                   1134:    cris_ver_v8p,
                   1135:    cris_not_implemented_op},
                   1136: 
                   1137:   {"swapnb",  0xA770, 0x5880,            "r",       0, SIZE_NONE,
                   1138:    cris_ver_v8p,
                   1139:    cris_not_implemented_op},
                   1140: 
                   1141:   {"swapwb",  0x6770, 0x9880,            "r",       0, SIZE_NONE,
                   1142:    cris_ver_v8p,
                   1143:    cris_not_implemented_op},
                   1144: 
                   1145:   {"swapnwb", 0xE770, 0x1880,            "r",       0, SIZE_NONE,
                   1146:    cris_ver_v8p,
                   1147:    cris_not_implemented_op},
                   1148: 
                   1149:   {"swapr",   0x1770, 0xe880,            "r",       0, SIZE_NONE,
                   1150:    cris_ver_v8p,
                   1151:    cris_not_implemented_op},
                   1152: 
                   1153:   {"swapnr",  0x9770, 0x6880,            "r",       0, SIZE_NONE,
                   1154:    cris_ver_v8p,
                   1155:    cris_not_implemented_op},
                   1156: 
                   1157:   {"swapwr",  0x5770, 0xa880,            "r",       0, SIZE_NONE,
                   1158:    cris_ver_v8p,
                   1159:    cris_not_implemented_op},
                   1160: 
                   1161:   {"swapnwr", 0xd770, 0x2880,            "r",       0, SIZE_NONE,
                   1162:    cris_ver_v8p,
                   1163:    cris_not_implemented_op},
                   1164: 
                   1165:   {"swapbr",  0x3770, 0xc880,            "r",       0, SIZE_NONE,
                   1166:    cris_ver_v8p,
                   1167:    cris_not_implemented_op},
                   1168: 
                   1169:   {"swapnbr", 0xb770, 0x4880,            "r",       0, SIZE_NONE,
                   1170:    cris_ver_v8p,
                   1171:    cris_not_implemented_op},
                   1172: 
                   1173:   {"swapwbr", 0x7770, 0x8880,            "r",       0, SIZE_NONE,
                   1174:    cris_ver_v8p,
                   1175:    cris_not_implemented_op},
                   1176: 
                   1177:   {"swapnwbr", 0xf770, 0x0880,           "r",       0, SIZE_NONE,
                   1178:    cris_ver_v8p,
                   1179:    cris_not_implemented_op},
                   1180: 
                   1181:   {"test",    0x0640, 0x0980,            "m D",     0, SIZE_NONE,
                   1182:    cris_ver_v0_10,
                   1183:    cris_reg_mode_test_op},
                   1184: 
                   1185:   {"test",    0x0b80, 0xf040,            "m y",     0, SIZE_FIELD,    0,
                   1186:    cris_none_reg_mode_clear_test_op},
                   1187: 
                   1188:   {"test",    0x0b80, 0xf040,            "m S",     0, SIZE_NONE,
                   1189:    cris_ver_v0_10,
                   1190:    cris_none_reg_mode_clear_test_op},
                   1191: 
                   1192:   {"xor",     0x07B0, 0x0840,            "r,R",     0, SIZE_NONE,     0,
                   1193:    cris_xor_op},
                   1194: 
                   1195:   {NULL, 0, 0, NULL, 0, 0, 0, cris_not_implemented_op}
                   1196: };
                   1197: 
                   1198: /* Condition-names, indexed by the CC_* numbers as found in cris.h. */
                   1199: const char * const
                   1200: cris_cc_strings[] =
                   1201: {
                   1202:   "hs",
                   1203:   "lo",
                   1204:   "ne",
                   1205:   "eq",
                   1206:   "vc",
                   1207:   "vs",
                   1208:   "pl",
                   1209:   "mi",
                   1210:   "ls",
                   1211:   "hi",
                   1212:   "ge",
                   1213:   "lt",
                   1214:   "gt",
                   1215:   "le",
                   1216:   "a",
                   1217:   /* This is a placeholder.  In v0, this would be "ext".  In v32, this
                   1218:      is "sb".  See cris_conds15.  */
                   1219:   "wf"
                   1220: };
                   1221: 
                   1222: /* Different names and semantics for condition 1111 (0xf).  */
                   1223: const struct cris_cond15 cris_cond15s[] =
                   1224: {
                   1225:   /* FIXME: In what version did condition "ext" disappear?  */
                   1226:   {"ext", cris_ver_v0_3},
                   1227:   {"wf", cris_ver_v10},
                   1228:   {"sb", cris_ver_v32p},
                   1229:   {NULL, 0}
                   1230: };
                   1231: 
                   1232: 
                   1233: /*
                   1234:  * Local variables:
                   1235:  * eval: (c-set-style "gnu")
                   1236:  * indent-tabs-mode: t
                   1237:  * End:
                   1238:  */
                   1239: 
                   1240: 
                   1241: /* No instruction will be disassembled longer than this.  In theory, and
                   1242:    in silicon, address prefixes can be cascaded.  In practice, cascading
                   1243:    is not used by GCC, and not supported by the assembler.  */
                   1244: #ifndef MAX_BYTES_PER_CRIS_INSN
                   1245: #define MAX_BYTES_PER_CRIS_INSN 8
                   1246: #endif
                   1247: 
                   1248: /* Whether or not to decode prefixes, folding it into the following
                   1249:    instruction.  FIXME: Make this optional later.  */
                   1250: #ifndef PARSE_PREFIX
                   1251: #define PARSE_PREFIX 1
                   1252: #endif
                   1253: 
                   1254: /* Sometimes we prefix all registers with this character.  */
                   1255: #define REGISTER_PREFIX_CHAR '$'
                   1256: 
                   1257: /* Whether or not to trace the following sequence:
                   1258:    sub* X,r%d
                   1259:    bound* Y,r%d
                   1260:    adds.w [pc+r%d.w],pc
                   1261: 
                   1262:    This is the assembly form of a switch-statement in C.
                   1263:    The "sub is optional.  If there is none, then X will be zero.
                   1264:    X is the value of the first case,
                   1265:    Y is the number of cases (including default).
                   1266: 
                   1267:    This results in case offsets printed on the form:
                   1268:     case N: -> case_address
                   1269:    where N is an estimation on the corresponding 'case' operand in C,
                   1270:    and case_address is where execution of that case continues after the
                   1271:    sequence presented above.
                   1272: 
                   1273:    The old style of output was to print the offsets as instructions,
                   1274:    which made it hard to follow "case"-constructs in the disassembly,
                   1275:    and caused a lot of annoying warnings about undefined instructions.
                   1276: 
                   1277:    FIXME: Make this optional later.  */
                   1278: #ifndef TRACE_CASE
                   1279: #define TRACE_CASE (disdata->trace_case)
                   1280: #endif
                   1281: 
                   1282: enum cris_disass_family
                   1283:  { cris_dis_v0_v10, cris_dis_common_v10_v32, cris_dis_v32 };
                   1284: 
                   1285: /* Stored in the disasm_info->private_data member.  */
                   1286: struct cris_disasm_data
                   1287: {
                   1288:   /* Whether to print something less confusing if we find something
                   1289:      matching a switch-construct.  */
                   1290:   bfd_boolean trace_case;
                   1291: 
                   1292:   /* Whether this code is flagged as crisv32.  FIXME: Should be an enum
                   1293:      that includes "compatible".  */
                   1294:   enum cris_disass_family distype;
                   1295: };
                   1296: 
                   1297: /* Value of first element in switch.  */
                   1298: static long case_offset = 0;
                   1299: 
                   1300: /* How many more case-offsets to print.  */
                   1301: static long case_offset_counter = 0;
                   1302: 
                   1303: /* Number of case offsets.  */
                   1304: static long no_of_case_offsets = 0;
                   1305: 
                   1306: /* Candidate for next case_offset.  */
                   1307: static long last_immediate = 0;
                   1308: 
                   1309: static int cris_constraint
                   1310:   (const char *, unsigned, unsigned, struct cris_disasm_data *);
                   1311: 
                   1312: /* Parse disassembler options and store state in info.  FIXME: For the
                   1313:    time being, we abuse static variables.  */
                   1314: 
                   1315: static bfd_boolean
                   1316: cris_parse_disassembler_options (disassemble_info *info,
                   1317:                                 enum cris_disass_family distype)
                   1318: {
                   1319:   struct cris_disasm_data *disdata;
                   1320: 
                   1321:   info->private_data = calloc (1, sizeof (struct cris_disasm_data));
                   1322:   disdata = (struct cris_disasm_data *) info->private_data;
                   1323:   if (disdata == NULL)
                   1324:     return FALSE;
                   1325: 
                   1326:   /* Default true.  */
                   1327:   disdata->trace_case
                   1328:     = (info->disassembler_options == NULL
                   1329:        || (strcmp (info->disassembler_options, "nocase") != 0));
                   1330: 
                   1331:   disdata->distype = distype;
                   1332:   return TRUE;
                   1333: }
                   1334: 
                   1335: static const struct cris_spec_reg *
                   1336: spec_reg_info (unsigned int sreg, enum cris_disass_family distype)
                   1337: {
                   1338:   int i;
                   1339: 
                   1340:   for (i = 0; cris_spec_regs[i].name != NULL; i++)
                   1341:     {
                   1342:       if (cris_spec_regs[i].number == sreg)
                   1343:        {
                   1344:          if (distype == cris_dis_v32)
                   1345:            switch (cris_spec_regs[i].applicable_version)
                   1346:              {
                   1347:              case cris_ver_warning:
                   1348:              case cris_ver_version_all:
                   1349:              case cris_ver_v3p:
                   1350:              case cris_ver_v8p:
                   1351:              case cris_ver_v10p:
                   1352:              case cris_ver_v32p:
                   1353:                /* No ambiguous sizes or register names with CRISv32.  */
                   1354:                if (cris_spec_regs[i].warning == NULL)
                   1355:                  return &cris_spec_regs[i];
                   1356:              default:
                   1357:                ;
                   1358:              }
                   1359:          else if (cris_spec_regs[i].applicable_version != cris_ver_v32p)
                   1360:            return &cris_spec_regs[i];
                   1361:        }
                   1362:     }
                   1363: 
                   1364:   return NULL;
                   1365: }
                   1366: 
                   1367: /* Return the number of bits in the argument.  */
                   1368: 
                   1369: static int
                   1370: number_of_bits (unsigned int val)
                   1371: {
                   1372:   int bits;
                   1373: 
                   1374:   for (bits = 0; val != 0; val &= val - 1)
                   1375:     bits++;
                   1376: 
                   1377:   return bits;
                   1378: }
                   1379: 
                   1380: /* Get an entry in the opcode-table.  */
                   1381: 
                   1382: static const struct cris_opcode *
                   1383: get_opcode_entry (unsigned int insn,
                   1384:                  unsigned int prefix_insn,
                   1385:                  struct cris_disasm_data *disdata)
                   1386: {
                   1387:   /* For non-prefixed insns, we keep a table of pointers, indexed by the
                   1388:      insn code.  Each entry is initialized when found to be NULL.  */
                   1389:   static const struct cris_opcode **opc_table = NULL;
                   1390: 
                   1391:   const struct cris_opcode *max_matchedp = NULL;
                   1392:   const struct cris_opcode **prefix_opc_table = NULL;
                   1393: 
                   1394:   /* We hold a table for each prefix that need to be handled differently.  */
                   1395:   static const struct cris_opcode **dip_prefixes = NULL;
                   1396:   static const struct cris_opcode **bdapq_m1_prefixes = NULL;
                   1397:   static const struct cris_opcode **bdapq_m2_prefixes = NULL;
                   1398:   static const struct cris_opcode **bdapq_m4_prefixes = NULL;
                   1399:   static const struct cris_opcode **rest_prefixes = NULL;
                   1400: 
                   1401:   /* Allocate and clear the opcode-table.  */
                   1402:   if (opc_table == NULL)
                   1403:     {
                   1404:       opc_table = malloc (65536 * sizeof (opc_table[0]));
                   1405:       if (opc_table == NULL)
                   1406:        return NULL;
                   1407: 
                   1408:       memset (opc_table, 0, 65536 * sizeof (const struct cris_opcode *));
                   1409: 
                   1410:       dip_prefixes
                   1411:        = malloc (65536 * sizeof (const struct cris_opcode **));
                   1412:       if (dip_prefixes == NULL)
                   1413:        return NULL;
                   1414: 
                   1415:       memset (dip_prefixes, 0, 65536 * sizeof (dip_prefixes[0]));
                   1416: 
                   1417:       bdapq_m1_prefixes
                   1418:        = malloc (65536 * sizeof (const struct cris_opcode **));
                   1419:       if (bdapq_m1_prefixes == NULL)
                   1420:        return NULL;
                   1421: 
                   1422:       memset (bdapq_m1_prefixes, 0, 65536 * sizeof (bdapq_m1_prefixes[0]));
                   1423: 
                   1424:       bdapq_m2_prefixes
                   1425:        = malloc (65536 * sizeof (const struct cris_opcode **));
                   1426:       if (bdapq_m2_prefixes == NULL)
                   1427:        return NULL;
                   1428: 
                   1429:       memset (bdapq_m2_prefixes, 0, 65536 * sizeof (bdapq_m2_prefixes[0]));
                   1430: 
                   1431:       bdapq_m4_prefixes
                   1432:        = malloc (65536 * sizeof (const struct cris_opcode **));
                   1433:       if (bdapq_m4_prefixes == NULL)
                   1434:        return NULL;
                   1435: 
                   1436:       memset (bdapq_m4_prefixes, 0, 65536 * sizeof (bdapq_m4_prefixes[0]));
                   1437: 
                   1438:       rest_prefixes
                   1439:        = malloc (65536 * sizeof (const struct cris_opcode **));
                   1440:       if (rest_prefixes == NULL)
                   1441:        return NULL;
                   1442: 
                   1443:       memset (rest_prefixes, 0, 65536 * sizeof (rest_prefixes[0]));
                   1444:     }
                   1445: 
                   1446:   /* Get the right table if this is a prefix.
                   1447:      This code is connected to cris_constraints in that it knows what
                   1448:      prefixes play a role in recognition of patterns; the necessary
                   1449:      state is reflected by which table is used.  If constraints
                   1450:      involving match or non-match of prefix insns are changed, then this
                   1451:      probably needs changing too.  */
                   1452:   if (prefix_insn != NO_CRIS_PREFIX)
                   1453:     {
                   1454:       const struct cris_opcode *popcodep
                   1455:        = (opc_table[prefix_insn] != NULL
                   1456:           ? opc_table[prefix_insn]
                   1457:           : get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata));
                   1458: 
                   1459:       if (popcodep == NULL)
                   1460:        return NULL;
                   1461: 
                   1462:       if (popcodep->match == BDAP_QUICK_OPCODE)
                   1463:        {
                   1464:          /* Since some offsets are recognized with "push" macros, we
                   1465:             have to have different tables for them.  */
                   1466:          int offset = (prefix_insn & 255);
                   1467: 
                   1468:          if (offset > 127)
                   1469:            offset -= 256;
                   1470: 
                   1471:          switch (offset)
                   1472:            {
                   1473:            case -4:
                   1474:              prefix_opc_table = bdapq_m4_prefixes;
                   1475:              break;
                   1476: 
                   1477:            case -2:
                   1478:              prefix_opc_table = bdapq_m2_prefixes;
                   1479:              break;
                   1480: 
                   1481:            case -1:
                   1482:              prefix_opc_table = bdapq_m1_prefixes;
                   1483:              break;
                   1484: 
                   1485:            default:
                   1486:              prefix_opc_table = rest_prefixes;
                   1487:              break;
                   1488:            }
                   1489:        }
                   1490:       else if (popcodep->match == DIP_OPCODE)
                   1491:        /* We don't allow postincrement when the prefix is DIP, so use a
                   1492:           different table for DIP.  */
                   1493:        prefix_opc_table = dip_prefixes;
                   1494:       else
                   1495:        prefix_opc_table = rest_prefixes;
                   1496:     }
                   1497: 
                   1498:   if (prefix_insn != NO_CRIS_PREFIX
                   1499:       && prefix_opc_table[insn] != NULL)
                   1500:     max_matchedp = prefix_opc_table[insn];
                   1501:   else if (prefix_insn == NO_CRIS_PREFIX && opc_table[insn] != NULL)
                   1502:     max_matchedp = opc_table[insn];
                   1503:   else
                   1504:     {
                   1505:       const struct cris_opcode *opcodep;
                   1506:       int max_level_of_match = -1;
                   1507: 
                   1508:       for (opcodep = cris_opcodes;
                   1509:           opcodep->name != NULL;
                   1510:           opcodep++)
                   1511:        {
                   1512:          int level_of_match;
                   1513: 
                   1514:          if (disdata->distype == cris_dis_v32)
                   1515:            {
                   1516:              switch (opcodep->applicable_version)
                   1517:                {
                   1518:                case cris_ver_version_all:
                   1519:                  break;
                   1520: 
                   1521:                case cris_ver_v0_3:
                   1522:                case cris_ver_v0_10:
                   1523:                case cris_ver_v3_10:
                   1524:                case cris_ver_sim_v0_10:
                   1525:                case cris_ver_v8_10:
                   1526:                case cris_ver_v10:
                   1527:                case cris_ver_warning:
                   1528:                  continue;
                   1529: 
                   1530:                case cris_ver_v3p:
                   1531:                case cris_ver_v8p:
                   1532:                case cris_ver_v10p:
                   1533:                case cris_ver_v32p:
                   1534:                  break;
                   1535: 
                   1536:                case cris_ver_v8:
                   1537:                  abort ();
                   1538:                default:
                   1539:                  abort ();
                   1540:                }
                   1541:            }
                   1542:          else
                   1543:            {
                   1544:              switch (opcodep->applicable_version)
                   1545:                {
                   1546:                case cris_ver_version_all:
                   1547:                case cris_ver_v0_3:
                   1548:                case cris_ver_v3p:
                   1549:                case cris_ver_v0_10:
                   1550:                case cris_ver_v8p:
                   1551:                case cris_ver_v8_10:
                   1552:                case cris_ver_v10:
                   1553:                case cris_ver_sim_v0_10:
                   1554:                case cris_ver_v10p:
                   1555:                case cris_ver_warning:
                   1556:                  break;
                   1557: 
                   1558:                case cris_ver_v32p:
                   1559:                  continue;
                   1560: 
                   1561:                case cris_ver_v8:
                   1562:                  abort ();
                   1563:                default:
                   1564:                  abort ();
                   1565:                }
                   1566:            }
                   1567: 
                   1568:          /* We give a double lead for bits matching the template in
                   1569:             cris_opcodes.  Not even, because then "move p8,r10" would
                   1570:             be given 2 bits lead over "clear.d r10".  When there's a
                   1571:             tie, the first entry in the table wins.  This is
                   1572:             deliberate, to avoid a more complicated recognition
                   1573:             formula.  */
                   1574:          if ((opcodep->match & insn) == opcodep->match
                   1575:              && (opcodep->lose & insn) == 0
                   1576:              && ((level_of_match
                   1577:                   = cris_constraint (opcodep->args,
                   1578:                                      insn,
                   1579:                                      prefix_insn,
                   1580:                                      disdata))
                   1581:                  >= 0)
                   1582:              && ((level_of_match
                   1583:                   += 2 * number_of_bits (opcodep->match
                   1584:                                          | opcodep->lose))
                   1585:                          > max_level_of_match))
                   1586:                    {
                   1587:                      max_matchedp = opcodep;
                   1588:                      max_level_of_match = level_of_match;
                   1589: 
                   1590:                      /* If there was a full match, never mind looking
                   1591:                         further.  */
                   1592:                      if (level_of_match >= 2 * 16)
                   1593:                        break;
                   1594:                    }
                   1595:                }
                   1596:       /* Fill in the new entry.
                   1597: 
                   1598:         If there are changes to the opcode-table involving prefixes, and
                   1599:         disassembly then does not work correctly, try removing the
                   1600:         else-clause below that fills in the prefix-table.  If that
                   1601:         helps, you need to change the prefix_opc_table setting above, or
                   1602:         something related.  */
                   1603:       if (prefix_insn == NO_CRIS_PREFIX)
                   1604:        opc_table[insn] = max_matchedp;
                   1605:       else
                   1606:        prefix_opc_table[insn] = max_matchedp;
                   1607:     }
                   1608: 
                   1609:   return max_matchedp;
                   1610: }
                   1611: 
                   1612: /* Return -1 if the constraints of a bitwise-matched instruction say
                   1613:    that there is no match.  Otherwise return a nonnegative number
                   1614:    indicating the confidence in the match (higher is better).  */
                   1615: 
                   1616: static int
                   1617: cris_constraint (const char *cs,
                   1618:                 unsigned int insn,
                   1619:                 unsigned int prefix_insn,
                   1620:                 struct cris_disasm_data *disdata)
                   1621: {
                   1622:   int retval = 0;
                   1623:   int tmp;
                   1624:   int prefix_ok = 0;
                   1625:   const char *s;
                   1626: 
                   1627:   for (s = cs; *s; s++)
                   1628:     switch (*s)
                   1629:       {
                   1630:       case '!':
                   1631:        /* Do not recognize "pop" if there's a prefix and then only for
                   1632:            v0..v10.  */
                   1633:        if (prefix_insn != NO_CRIS_PREFIX
                   1634:            || disdata->distype != cris_dis_v0_v10)
                   1635:          return -1;
                   1636:        break;
                   1637: 
                   1638:       case 'U':
                   1639:        /* Not recognized at disassembly.  */
                   1640:        return -1;
                   1641: 
                   1642:       case 'M':
                   1643:        /* Size modifier for "clear", i.e. special register 0, 4 or 8.
                   1644:           Check that it is one of them.  Only special register 12 could
                   1645:           be mismatched, but checking for matches is more logical than
                   1646:           checking for mismatches when there are only a few cases.  */
                   1647:        tmp = ((insn >> 12) & 0xf);
                   1648:        if (tmp != 0 && tmp != 4 && tmp != 8)
                   1649:          return -1;
                   1650:        break;
                   1651: 
                   1652:       case 'm':
                   1653:        if ((insn & 0x30) == 0x30)
                   1654:          return -1;
                   1655:        break;
                   1656: 
                   1657:       case 'S':
                   1658:        /* A prefix operand without side-effect.  */
                   1659:        if (prefix_insn != NO_CRIS_PREFIX && (insn & 0x400) == 0)
                   1660:          {
                   1661:            prefix_ok = 1;
                   1662:            break;
                   1663:          }
                   1664:        else
                   1665:          return -1;
                   1666: 
                   1667:       case 's':
                   1668:       case 'y':
                   1669:       case 'Y':
                   1670:        /* If this is a prefixed insn with postincrement (side-effect),
                   1671:           the prefix must not be DIP.  */
                   1672:        if (prefix_insn != NO_CRIS_PREFIX)
                   1673:          {
                   1674:            if (insn & 0x400)
                   1675:              {
                   1676:                const struct cris_opcode *prefix_opcodep
                   1677:                  = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
                   1678: 
                   1679:                if (prefix_opcodep->match == DIP_OPCODE)
                   1680:                  return -1;
                   1681:              }
                   1682: 
                   1683:            prefix_ok = 1;
                   1684:          }
                   1685:        break;
                   1686: 
                   1687:       case 'B':
                   1688:        /* If we don't fall through, then the prefix is ok.  */
                   1689:        prefix_ok = 1;
                   1690: 
                   1691:        /* A "push" prefix.  Check for valid "push" size.
                   1692:           In case of special register, it may be != 4.  */
                   1693:        if (prefix_insn != NO_CRIS_PREFIX)
                   1694:          {
                   1695:            /* Match the prefix insn to BDAPQ.  */
                   1696:            const struct cris_opcode *prefix_opcodep
                   1697:              = get_opcode_entry (prefix_insn, NO_CRIS_PREFIX, disdata);
                   1698: 
                   1699:            if (prefix_opcodep->match == BDAP_QUICK_OPCODE)
                   1700:              {
                   1701:                int pushsize = (prefix_insn & 255);
                   1702: 
                   1703:                if (pushsize > 127)
                   1704:                  pushsize -= 256;
                   1705: 
                   1706:                if (s[1] == 'P')
                   1707:                  {
                   1708:                    unsigned int spec_reg = (insn >> 12) & 15;
                   1709:                    const struct cris_spec_reg *sregp
                   1710:                      = spec_reg_info (spec_reg, disdata->distype);
                   1711: 
                   1712:                    /* For a special-register, the "prefix size" must
                   1713:                       match the size of the register.  */
                   1714:                    if (sregp && sregp->reg_size == (unsigned int) -pushsize)
                   1715:                      break;
                   1716:                  }
                   1717:                else if (s[1] == 'R')
                   1718:                  {
                   1719:                    if ((insn & 0x30) == 0x20 && pushsize == -4)
                   1720:                      break;
                   1721:                  }
                   1722:                /* FIXME:  Should abort here; next constraint letter
                   1723:                   *must* be 'P' or 'R'.  */
                   1724:              }
                   1725:          }
                   1726:        return -1;
                   1727: 
                   1728:       case 'D':
                   1729:        retval = (((insn >> 12) & 15) == (insn & 15));
                   1730:        if (!retval)
                   1731:          return -1;
                   1732:        else
                   1733:          retval += 4;
                   1734:        break;
                   1735: 
                   1736:       case 'P':
                   1737:        {
                   1738:          const struct cris_spec_reg *sregp
                   1739:            = spec_reg_info ((insn >> 12) & 15, disdata->distype);
                   1740: 
                   1741:          /* Since we match four bits, we will give a value of 4-1 = 3
                   1742:             in a match.  If there is a corresponding exact match of a
                   1743:             special register in another pattern, it will get a value of
                   1744:             4, which will be higher.  This should be correct in that an
                   1745:             exact pattern would match better than a general pattern.
                   1746: 
                   1747:             Note that there is a reason for not returning zero; the
                   1748:             pattern for "clear" is partly  matched in the bit-pattern
                   1749:             (the two lower bits must be zero), while the bit-pattern
                   1750:             for a move from a special register is matched in the
                   1751:             register constraint.  */
                   1752: 
                   1753:          if (sregp != NULL)
                   1754:            {
                   1755:              retval += 3;
                   1756:              break;
                   1757:            }
                   1758:          else
                   1759:            return -1;
                   1760:        }
                   1761:       }
                   1762: 
                   1763:   if (prefix_insn != NO_CRIS_PREFIX && ! prefix_ok)
                   1764:     return -1;
                   1765: 
                   1766:   return retval;
                   1767: }
                   1768: 
                   1769: /* Format number as hex with a leading "0x" into outbuffer.  */
                   1770: 
                   1771: static char *
                   1772: format_hex (unsigned long number,
                   1773:            char *outbuffer,
                   1774:            struct cris_disasm_data *disdata)
                   1775: {
                   1776:   /* Truncate negative numbers on >32-bit hosts.  */
                   1777:   number &= 0xffffffff;
                   1778: 
                   1779:   sprintf (outbuffer, "0x%lx", number);
                   1780: 
                   1781:   /* Save this value for the "case" support.  */
                   1782:   if (TRACE_CASE)
                   1783:     last_immediate = number;
                   1784: 
                   1785:   return outbuffer + strlen (outbuffer);
                   1786: }
                   1787: 
                   1788: /* Format number as decimal into outbuffer.  Parameter signedp says
                   1789:    whether the number should be formatted as signed (!= 0) or
                   1790:    unsigned (== 0).  */
                   1791: 
                   1792: static char *
                   1793: format_dec (long number, char *outbuffer, int signedp)
                   1794: {
                   1795:   last_immediate = number;
                   1796:   sprintf (outbuffer, signedp ? "%ld" : "%lu", number);
                   1797: 
                   1798:   return outbuffer + strlen (outbuffer);
                   1799: }
                   1800: 
                   1801: /* Format the name of the general register regno into outbuffer.  */
                   1802: 
                   1803: static char *
                   1804: format_reg (struct cris_disasm_data *disdata,
                   1805:            int regno,
                   1806:            char *outbuffer_start,
                   1807:            bfd_boolean with_reg_prefix)
                   1808: {
                   1809:   char *outbuffer = outbuffer_start;
                   1810: 
                   1811:   if (with_reg_prefix)
                   1812:     *outbuffer++ = REGISTER_PREFIX_CHAR;
                   1813: 
                   1814:   switch (regno)
                   1815:     {
                   1816:     case 15:
                   1817:       /* For v32, there is no context in which we output PC.  */
                   1818:       if (disdata->distype == cris_dis_v32)
                   1819:        strcpy (outbuffer, "acr");
                   1820:       else
                   1821:        strcpy (outbuffer, "pc");
                   1822:       break;
                   1823: 
                   1824:     case 14:
                   1825:       strcpy (outbuffer, "sp");
                   1826:       break;
                   1827: 
                   1828:     default:
                   1829:       sprintf (outbuffer, "r%d", regno);
                   1830:       break;
                   1831:     }
                   1832: 
                   1833:   return outbuffer_start + strlen (outbuffer_start);
                   1834: }
                   1835: 
                   1836: /* Format the name of a support register into outbuffer.  */
                   1837: 
                   1838: static char *
                   1839: format_sup_reg (unsigned int regno,
                   1840:                char *outbuffer_start,
                   1841:                bfd_boolean with_reg_prefix)
                   1842: {
                   1843:   char *outbuffer = outbuffer_start;
                   1844:   int i;
                   1845: 
                   1846:   if (with_reg_prefix)
                   1847:     *outbuffer++ = REGISTER_PREFIX_CHAR;
                   1848: 
                   1849:   for (i = 0; cris_support_regs[i].name != NULL; i++)
                   1850:     if (cris_support_regs[i].number == regno)
                   1851:       {
                   1852:        sprintf (outbuffer, "%s", cris_support_regs[i].name);
                   1853:        return outbuffer_start + strlen (outbuffer_start);
                   1854:       }
                   1855: 
                   1856:   /* There's supposed to be register names covering all numbers, though
                   1857:      some may be generic names.  */
                   1858:   sprintf (outbuffer, "format_sup_reg-BUG");
                   1859:   return outbuffer_start + strlen (outbuffer_start);
                   1860: }
                   1861: 
                   1862: /* Return the length of an instruction.  */
                   1863: 
                   1864: static unsigned
                   1865: bytes_to_skip (unsigned int insn,
                   1866:               const struct cris_opcode *matchedp,
                   1867:               enum cris_disass_family distype,
                   1868:               const struct cris_opcode *prefix_matchedp)
                   1869: {
                   1870:   /* Each insn is a word plus "immediate" operands.  */
                   1871:   unsigned to_skip = 2;
                   1872:   const char *template = matchedp->args;
                   1873:   const char *s;
                   1874: 
                   1875:   for (s = template; *s; s++)
                   1876:     if ((*s == 's' || *s == 'N' || *s == 'Y')
                   1877:        && (insn & 0x400) && (insn & 15) == 15
                   1878:        && prefix_matchedp == NULL)
                   1879:       {
                   1880:        /* Immediate via [pc+], so we have to check the size of the
                   1881:           operand.  */
                   1882:        int mode_size = 1 << ((insn >> 4) & (*template == 'z' ? 1 : 3));
                   1883: 
                   1884:        if (matchedp->imm_oprnd_size == SIZE_FIX_32)
                   1885:          to_skip += 4;
                   1886:        else if (matchedp->imm_oprnd_size == SIZE_SPEC_REG)
                   1887:          {
                   1888:            const struct cris_spec_reg *sregp
                   1889:              = spec_reg_info ((insn >> 12) & 15, distype);
                   1890: 
                   1891:            /* FIXME: Improve error handling; should have been caught
                   1892:               earlier.  */
                   1893:            if (sregp == NULL)
                   1894:              return 2;
                   1895: 
                   1896:            /* PC is incremented by two, not one, for a byte.  Except on
                   1897:               CRISv32, where constants are always DWORD-size for
                   1898:               special registers.  */
                   1899:            to_skip +=
                   1900:              distype == cris_dis_v32 ? 4 : (sregp->reg_size + 1) & ~1;
                   1901:          }
                   1902:        else
                   1903:          to_skip += (mode_size + 1) & ~1;
                   1904:       }
                   1905:     else if (*s == 'n')
                   1906:       to_skip += 4;
                   1907:     else if (*s == 'b')
                   1908:       to_skip += 2;
                   1909: 
                   1910:   return to_skip;
                   1911: }
                   1912: 
                   1913: /* Print condition code flags.  */
                   1914: 
                   1915: static char *
                   1916: print_flags (struct cris_disasm_data *disdata, unsigned int insn, char *cp)
                   1917: {
                   1918:   /* Use the v8 (Etrax 100) flag definitions for disassembly.
                   1919:      The differences with v0 (Etrax 1..4) vs. Svinto are:
                   1920:       v0 'd' <=> v8 'm'
                   1921:       v0 'e' <=> v8 'b'.
                   1922:      FIXME: Emit v0..v3 flag names somehow.  */
                   1923:   static const char v8_fnames[] = "cvznxibm";
                   1924:   static const char v32_fnames[] = "cvznxiup";
                   1925:   const char *fnames
                   1926:     = disdata->distype == cris_dis_v32 ? v32_fnames : v8_fnames;
                   1927: 
                   1928:   unsigned char flagbits = (((insn >> 8) & 0xf0) | (insn & 15));
                   1929:   int i;
                   1930: 
                   1931:   for (i = 0; i < 8; i++)
                   1932:     if (flagbits & (1 << i))
                   1933:       *cp++ = fnames[i];
                   1934: 
                   1935:   return cp;
                   1936: }
                   1937: 
                   1938: /* Print out an insn with its operands, and update the info->insn_type
                   1939:    fields.  The prefix_opcodep and the rest hold a prefix insn that is
                   1940:    supposed to be output as an address mode.  */
                   1941: 
                   1942: static void
                   1943: print_with_operands (const struct cris_opcode *opcodep,
                   1944:                     unsigned int insn,
                   1945:                     unsigned char *buffer,
                   1946:                     bfd_vma addr,
                   1947:                     disassemble_info *info,
                   1948:                     /* If a prefix insn was before this insn (and is supposed
                   1949:                        to be output as an address), here is a description of
                   1950:                        it.  */
                   1951:                     const struct cris_opcode *prefix_opcodep,
                   1952:                     unsigned int prefix_insn,
                   1953:                     unsigned char *prefix_buffer,
                   1954:                     bfd_boolean with_reg_prefix)
                   1955: {
                   1956:   /* Get a buffer of somewhat reasonable size where we store
                   1957:      intermediate parts of the insn.  */
                   1958:   char temp[sizeof (".d [$r13=$r12-2147483648],$r10") * 2];
                   1959:   char *tp = temp;
                   1960:   static const char mode_char[] = "bwd?";
                   1961:   const char *s;
                   1962:   const char *cs;
                   1963:   struct cris_disasm_data *disdata
                   1964:     = (struct cris_disasm_data *) info->private_data;
                   1965: 
                   1966:   /* Print out the name first thing we do.  */
                   1967:   (*info->fprintf_func) (info->stream, "%s", opcodep->name);
                   1968: 
                   1969:   cs = opcodep->args;
                   1970:   s = cs;
                   1971: 
                   1972:   /* Ignore any prefix indicator.  */
                   1973:   if (*s == 'p')
                   1974:     s++;
                   1975: 
                   1976:   if (*s == 'm' || *s == 'M' || *s == 'z')
                   1977:     {
                   1978:       *tp++ = '.';
                   1979: 
                   1980:       /* Get the size-letter.  */
                   1981:       *tp++ = *s == 'M'
                   1982:        ? (insn & 0x8000 ? 'd'
                   1983:           : insn & 0x4000 ? 'w' : 'b')
                   1984:        : mode_char[(insn >> 4) & (*s == 'z' ? 1 : 3)];
                   1985: 
                   1986:       /* Ignore the size and the space character that follows.  */
                   1987:       s += 2;
                   1988:     }
                   1989: 
                   1990:   /* Add a space if this isn't a long-branch, because for those will add
                   1991:      the condition part of the name later.  */
                   1992:   if (opcodep->match != (BRANCH_PC_LOW + BRANCH_INCR_HIGH * 256))
                   1993:     *tp++ = ' ';
                   1994: 
                   1995:   /* Fill in the insn-type if deducible from the name (and there's no
                   1996:      better way).  */
                   1997:   if (opcodep->name[0] == 'j')
                   1998:     {
                   1999:       if (CONST_STRNEQ (opcodep->name, "jsr"))
                   2000:        /* It's "jsr" or "jsrc".  */
                   2001:        info->insn_type = dis_jsr;
                   2002:       else
                   2003:        /* Any other jump-type insn is considered a branch.  */
                   2004:        info->insn_type = dis_branch;
                   2005:     }
                   2006: 
                   2007:   /* We might know some more fields right now.  */
                   2008:   info->branch_delay_insns = opcodep->delayed;
                   2009: 
                   2010:   /* Handle operands.  */
                   2011:   for (; *s; s++)
                   2012:     {
                   2013:     switch (*s)
                   2014:       {
                   2015:       case 'T':
                   2016:        tp = format_sup_reg ((insn >> 12) & 15, tp, with_reg_prefix);
                   2017:        break;
                   2018: 
                   2019:       case 'A':
                   2020:        if (with_reg_prefix)
                   2021:          *tp++ = REGISTER_PREFIX_CHAR;
                   2022:        *tp++ = 'a';
                   2023:        *tp++ = 'c';
                   2024:        *tp++ = 'r';
                   2025:        break;
                   2026: 
                   2027:       case '[':
                   2028:       case ']':
                   2029:       case ',':
                   2030:        *tp++ = *s;
                   2031:        break;
                   2032: 
                   2033:       case '!':
                   2034:        /* Ignore at this point; used at earlier stages to avoid
                   2035:           recognition if there's a prefix at something that in other
                   2036:           ways looks like a "pop".  */
                   2037:        break;
                   2038: 
                   2039:       case 'd':
                   2040:        /* Ignore.  This is an optional ".d " on the large one of
                   2041:           relaxable insns.  */
                   2042:        break;
                   2043: 
                   2044:       case 'B':
                   2045:        /* This was the prefix that made this a "push".  We've already
                   2046:           handled it by recognizing it, so signal that the prefix is
                   2047:           handled by setting it to NULL.  */
                   2048:        prefix_opcodep = NULL;
                   2049:        break;
                   2050: 
                   2051:       case 'D':
                   2052:       case 'r':
                   2053:        tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
                   2054:        break;
                   2055: 
                   2056:       case 'R':
                   2057:        tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
                   2058:        break;
                   2059: 
                   2060:       case 'n':
                   2061:        {
                   2062:          /* Like N but pc-relative to the start of the insn.  */
                   2063:          unsigned long number
                   2064:            = (buffer[2] + buffer[3] * 256 + buffer[4] * 65536
                   2065:               + buffer[5] * 0x1000000 + addr);
                   2066: 
                   2067:          /* Finish off and output previous formatted bytes.  */
                   2068:          *tp = 0;
                   2069:          if (temp[0])
                   2070:            (*info->fprintf_func) (info->stream, "%s", temp);
                   2071:          tp = temp;
                   2072: 
                   2073:          (*info->print_address_func) ((bfd_vma) number, info);
                   2074:        }
                   2075:        break;
                   2076: 
                   2077:       case 'u':
                   2078:        {
                   2079:          /* Like n but the offset is bits <3:0> in the instruction.  */
                   2080:          unsigned long number = (buffer[0] & 0xf) * 2 + addr;
                   2081: 
                   2082:          /* Finish off and output previous formatted bytes.  */
                   2083:          *tp = 0;
                   2084:          if (temp[0])
                   2085:            (*info->fprintf_func) (info->stream, "%s", temp);
                   2086:          tp = temp;
                   2087: 
                   2088:          (*info->print_address_func) ((bfd_vma) number, info);
                   2089:        }
                   2090:        break;
                   2091: 
                   2092:       case 'N':
                   2093:       case 'y':
                   2094:       case 'Y':
                   2095:       case 'S':
                   2096:       case 's':
                   2097:        /* Any "normal" memory operand.  */
                   2098:        if ((insn & 0x400) && (insn & 15) == 15 && prefix_opcodep == NULL)
                   2099:          {
                   2100:            /* We're looking at [pc+], i.e. we need to output an immediate
                   2101:               number, where the size can depend on different things.  */
                   2102:            long number;
                   2103:            int signedp
                   2104:              = ((*cs == 'z' && (insn & 0x20))
                   2105:                 || opcodep->match == BDAP_QUICK_OPCODE);
                   2106:            int nbytes;
                   2107: 
                   2108:            if (opcodep->imm_oprnd_size == SIZE_FIX_32)
                   2109:              nbytes = 4;
                   2110:            else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
                   2111:              {
                   2112:                const struct cris_spec_reg *sregp
                   2113:                  = spec_reg_info ((insn >> 12) & 15, disdata->distype);
                   2114: 
                   2115:                /* A NULL return should have been as a non-match earlier,
                   2116:                   so catch it as an internal error in the error-case
                   2117:                   below.  */
                   2118:                if (sregp == NULL)
                   2119:                  /* Whatever non-valid size.  */
                   2120:                  nbytes = 42;
                   2121:                else
                   2122:                  /* PC is always incremented by a multiple of two.
                   2123:                     For CRISv32, immediates are always 4 bytes for
                   2124:                     special registers.  */
                   2125:                  nbytes = disdata->distype == cris_dis_v32
                   2126:                    ? 4 : (sregp->reg_size + 1) & ~1;
                   2127:              }
                   2128:            else
                   2129:              {
                   2130:                int mode_size = 1 << ((insn >> 4) & (*cs == 'z' ? 1 : 3));
                   2131: 
                   2132:                if (mode_size == 1)
                   2133:                  nbytes = 2;
                   2134:                else
                   2135:                  nbytes = mode_size;
                   2136:              }
                   2137: 
                   2138:            switch (nbytes)
                   2139:              {
                   2140:              case 1:
                   2141:                number = buffer[2];
                   2142:                if (signedp && number > 127)
                   2143:                  number -= 256;
                   2144:                break;
                   2145: 
                   2146:              case 2:
                   2147:                number = buffer[2] + buffer[3] * 256;
                   2148:                if (signedp && number > 32767)
                   2149:                  number -= 65536;
                   2150:                break;
                   2151: 
                   2152:              case 4:
                   2153:                number
                   2154:                  = buffer[2] + buffer[3] * 256 + buffer[4] * 65536
                   2155:                  + buffer[5] * 0x1000000;
                   2156:                break;
                   2157: 
                   2158:              default:
                   2159:                strcpy (tp, "bug");
                   2160:                tp += 3;
                   2161:                number = 42;
                   2162:              }
                   2163: 
                   2164:            if ((*cs == 'z' && (insn & 0x20))
                   2165:                || (opcodep->match == BDAP_QUICK_OPCODE
                   2166:                    && (nbytes <= 2 || buffer[1 + nbytes] == 0)))
                   2167:              tp = format_dec (number, tp, signedp);
                   2168:            else
                   2169:              {
                   2170:                unsigned int highbyte = (number >> 24) & 0xff;
                   2171: 
                   2172:                /* Either output this as an address or as a number.  If it's
                   2173:                   a dword with the same high-byte as the address of the
                   2174:                   insn, assume it's an address, and also if it's a non-zero
                   2175:                   non-0xff high-byte.  If this is a jsr or a jump, then
                   2176:                   it's definitely an address.  */
                   2177:                if (nbytes == 4
                   2178:                    && (highbyte == ((addr >> 24) & 0xff)
                   2179:                        || (highbyte != 0 && highbyte != 0xff)
                   2180:                        || info->insn_type == dis_branch
                   2181:                        || info->insn_type == dis_jsr))
                   2182:                  {
                   2183:                    /* Finish off and output previous formatted bytes.  */
                   2184:                    *tp = 0;
                   2185:                    tp = temp;
                   2186:                    if (temp[0])
                   2187:                      (*info->fprintf_func) (info->stream, "%s", temp);
                   2188: 
                   2189:                    (*info->print_address_func) ((bfd_vma) number, info);
                   2190: 
                   2191:                    info->target = number;
                   2192:                  }
                   2193:                else
                   2194:                  tp = format_hex (number, tp, disdata);
                   2195:              }
                   2196:          }
                   2197:        else
                   2198:          {
                   2199:            /* Not an immediate number.  Then this is a (possibly
                   2200:               prefixed) memory operand.  */
                   2201:            if (info->insn_type != dis_nonbranch)
                   2202:              {
                   2203:                int mode_size
                   2204:                  = 1 << ((insn >> 4)
                   2205:                          & (opcodep->args[0] == 'z' ? 1 : 3));
                   2206:                int size;
                   2207:                info->insn_type = dis_dref;
                   2208:                info->flags |= CRIS_DIS_FLAG_MEMREF;
                   2209: 
                   2210:                if (opcodep->imm_oprnd_size == SIZE_FIX_32)
                   2211:                  size = 4;
                   2212:                else if (opcodep->imm_oprnd_size == SIZE_SPEC_REG)
                   2213:                  {
                   2214:                    const struct cris_spec_reg *sregp
                   2215:                      = spec_reg_info ((insn >> 12) & 15, disdata->distype);
                   2216: 
                   2217:                    /* FIXME: Improve error handling; should have been caught
                   2218:                       earlier.  */
                   2219:                    if (sregp == NULL)
                   2220:                      size = 4;
                   2221:                    else
                   2222:                      size = sregp->reg_size;
                   2223:                  }
                   2224:                else
                   2225:                  size = mode_size;
                   2226: 
                   2227:                info->data_size = size;
                   2228:              }
                   2229: 
                   2230:            *tp++ = '[';
                   2231: 
                   2232:            if (prefix_opcodep
                   2233:                /* We don't match dip with a postincremented field
                   2234:                   as a side-effect address mode.  */
                   2235:                && ((insn & 0x400) == 0
                   2236:                    || prefix_opcodep->match != DIP_OPCODE))
                   2237:              {
                   2238:                if (insn & 0x400)
                   2239:                  {
                   2240:                    tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
                   2241:                    *tp++ = '=';
                   2242:                  }
                   2243: 
                   2244: 
                   2245:                /* We mainly ignore the prefix format string when the
                   2246:                   address-mode syntax is output.  */
                   2247:                switch (prefix_opcodep->match)
                   2248:                  {
                   2249:                  case DIP_OPCODE:
                   2250:                    /* It's [r], [r+] or [pc+].  */
                   2251:                    if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
                   2252:                      {
                   2253:                        /* It's [pc+].  This cannot possibly be anything
                   2254:                           but an address.  */
                   2255:                        unsigned long number
                   2256:                          = prefix_buffer[2] + prefix_buffer[3] * 256
                   2257:                          + prefix_buffer[4] * 65536
                   2258:                          + prefix_buffer[5] * 0x1000000;
                   2259: 
                   2260:                        info->target = (bfd_vma) number;
                   2261: 
                   2262:                        /* Finish off and output previous formatted
                   2263:                           data.  */
                   2264:                        *tp = 0;
                   2265:                        tp = temp;
                   2266:                        if (temp[0])
                   2267:                          (*info->fprintf_func) (info->stream, "%s", temp);
                   2268: 
                   2269:                        (*info->print_address_func) ((bfd_vma) number, info);
                   2270:                      }
                   2271:                    else
                   2272:                      {
                   2273:                        /* For a memref in an address, we use target2.
                   2274:                           In this case, target is zero.  */
                   2275:                        info->flags
                   2276:                          |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
                   2277:                              | CRIS_DIS_FLAG_MEM_TARGET2_MEM);
                   2278: 
                   2279:                        info->target2 = prefix_insn & 15;
                   2280: 
                   2281:                        *tp++ = '[';
                   2282:                        tp = format_reg (disdata, prefix_insn & 15, tp,
                   2283:                                         with_reg_prefix);
                   2284:                        if (prefix_insn & 0x400)
                   2285:                          *tp++ = '+';
                   2286:                        *tp++ = ']';
                   2287:                      }
                   2288:                    break;
                   2289: 
                   2290:                  case BDAP_QUICK_OPCODE:
                   2291:                    {
                   2292:                      int number;
                   2293: 
                   2294:                      number = prefix_buffer[0];
                   2295:                      if (number > 127)
                   2296:                        number -= 256;
                   2297: 
                   2298:                      /* Output "reg+num" or, if num < 0, "reg-num".  */
                   2299:                      tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
                   2300:                                       with_reg_prefix);
                   2301:                      if (number >= 0)
                   2302:                        *tp++ = '+';
                   2303:                      tp = format_dec (number, tp, 1);
                   2304: 
                   2305:                      info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
                   2306:                      info->target = (prefix_insn >> 12) & 15;
                   2307:                      info->target2 = (bfd_vma) number;
                   2308:                      break;
                   2309:                    }
                   2310: 
                   2311:                  case BIAP_OPCODE:
                   2312:                    /* Output "r+R.m".  */
                   2313:                    tp = format_reg (disdata, prefix_insn & 15, tp,
                   2314:                                     with_reg_prefix);
                   2315:                    *tp++ = '+';
                   2316:                    tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
                   2317:                                     with_reg_prefix);
                   2318:                    *tp++ = '.';
                   2319:                    *tp++ = mode_char[(prefix_insn >> 4) & 3];
                   2320: 
                   2321:                    info->flags
                   2322:                      |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
                   2323:                          | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
                   2324: 
                   2325:                          | ((prefix_insn & 0x8000)
                   2326:                             ? CRIS_DIS_FLAG_MEM_TARGET2_MULT4
                   2327:                             : ((prefix_insn & 0x8000)
                   2328:                                ? CRIS_DIS_FLAG_MEM_TARGET2_MULT2 : 0)));
                   2329: 
                   2330:                    /* Is it the casejump?  It's a "adds.w [pc+r%d.w],pc".  */
                   2331:                    if (insn == 0xf83f && (prefix_insn & ~0xf000) == 0x55f)
                   2332:                      /* Then start interpreting data as offsets.  */
                   2333:                      case_offset_counter = no_of_case_offsets;
                   2334:                    break;
                   2335: 
                   2336:                  case BDAP_INDIR_OPCODE:
                   2337:                    /* Output "r+s.m", or, if "s" is [pc+], "r+s" or
                   2338:                       "r-s".  */
                   2339:                    tp = format_reg (disdata, (prefix_insn >> 12) & 15, tp,
                   2340:                                     with_reg_prefix);
                   2341: 
                   2342:                    if ((prefix_insn & 0x400) && (prefix_insn & 15) == 15)
                   2343:                      {
                   2344:                        long number;
                   2345:                        unsigned int nbytes;
                   2346: 
                   2347:                        /* It's a value.  Get its size.  */
                   2348:                        int mode_size = 1 << ((prefix_insn >> 4) & 3);
                   2349: 
                   2350:                        if (mode_size == 1)
                   2351:                          nbytes = 2;
                   2352:                        else
                   2353:                          nbytes = mode_size;
                   2354: 
                   2355:                        switch (nbytes)
                   2356:                          {
                   2357:                          case 1:
                   2358:                            number = prefix_buffer[2];
                   2359:                            if (number > 127)
                   2360:                              number -= 256;
                   2361:                            break;
                   2362: 
                   2363:                          case 2:
                   2364:                            number = prefix_buffer[2] + prefix_buffer[3] * 256;
                   2365:                            if (number > 32767)
                   2366:                              number -= 65536;
                   2367:                            break;
                   2368: 
                   2369:                          case 4:
                   2370:                            number
                   2371:                              = prefix_buffer[2] + prefix_buffer[3] * 256
                   2372:                              + prefix_buffer[4] * 65536
                   2373:                              + prefix_buffer[5] * 0x1000000;
                   2374:                            break;
                   2375: 
                   2376:                          default:
                   2377:                            strcpy (tp, "bug");
                   2378:                            tp += 3;
                   2379:                            number = 42;
                   2380:                          }
                   2381: 
                   2382:                        info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
                   2383:                        info->target2 = (bfd_vma) number;
                   2384: 
                   2385:                        /* If the size is dword, then assume it's an
                   2386:                           address.  */
                   2387:                        if (nbytes == 4)
                   2388:                          {
                   2389:                            /* Finish off and output previous formatted
                   2390:                               bytes.  */
                   2391:                            *tp++ = '+';
                   2392:                            *tp = 0;
                   2393:                            tp = temp;
                   2394:                            (*info->fprintf_func) (info->stream, "%s", temp);
                   2395: 
                   2396:                            (*info->print_address_func) ((bfd_vma) number, info);
                   2397:                          }
                   2398:                        else
                   2399:                          {
                   2400:                            if (number >= 0)
                   2401:                              *tp++ = '+';
                   2402:                            tp = format_dec (number, tp, 1);
                   2403:                          }
                   2404:                      }
                   2405:                    else
                   2406:                      {
                   2407:                        /* Output "r+[R].m" or "r+[R+].m".  */
                   2408:                        *tp++ = '+';
                   2409:                        *tp++ = '[';
                   2410:                        tp = format_reg (disdata, prefix_insn & 15, tp,
                   2411:                                         with_reg_prefix);
                   2412:                        if (prefix_insn & 0x400)
                   2413:                          *tp++ = '+';
                   2414:                        *tp++ = ']';
                   2415:                        *tp++ = '.';
                   2416:                        *tp++ = mode_char[(prefix_insn >> 4) & 3];
                   2417: 
                   2418:                        info->flags
                   2419:                          |= (CRIS_DIS_FLAG_MEM_TARGET2_IS_REG
                   2420:                              | CRIS_DIS_FLAG_MEM_TARGET2_MEM
                   2421:                              | CRIS_DIS_FLAG_MEM_TARGET_IS_REG
                   2422: 
                   2423:                              | (((prefix_insn >> 4) == 2)
                   2424:                                 ? 0
                   2425:                                 : (((prefix_insn >> 4) & 3) == 1
                   2426:                                    ? CRIS_DIS_FLAG_MEM_TARGET2_MEM_WORD
                   2427:                                    : CRIS_DIS_FLAG_MEM_TARGET2_MEM_BYTE)));
                   2428:                      }
                   2429:                    break;
                   2430: 
                   2431:                  default:
                   2432:                    (*info->fprintf_func) (info->stream, "?prefix-bug");
                   2433:                  }
                   2434: 
                   2435:                /* To mark that the prefix is used, reset it.  */
                   2436:                prefix_opcodep = NULL;
                   2437:              }
                   2438:            else
                   2439:              {
                   2440:                tp = format_reg (disdata, insn & 15, tp, with_reg_prefix);
                   2441: 
                   2442:                info->flags |= CRIS_DIS_FLAG_MEM_TARGET_IS_REG;
                   2443:                info->target = insn & 15;
                   2444: 
                   2445:                if (insn & 0x400)
                   2446:                  *tp++ = '+';
                   2447:              }
                   2448:            *tp++ = ']';
                   2449:          }
                   2450:        break;
                   2451: 
                   2452:       case 'x':
                   2453:        tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
                   2454:        *tp++ = '.';
                   2455:        *tp++ = mode_char[(insn >> 4) & 3];
                   2456:        break;
                   2457: 
                   2458:       case 'I':
                   2459:        tp = format_dec (insn & 63, tp, 0);
                   2460:        break;
                   2461: 
                   2462:       case 'b':
                   2463:        {
                   2464:          int where = buffer[2] + buffer[3] * 256;
                   2465: 
                   2466:          if (where > 32767)
                   2467:            where -= 65536;
                   2468: 
                   2469:          where += addr + ((disdata->distype == cris_dis_v32) ? 0 : 4);
                   2470: 
                   2471:          if (insn == BA_PC_INCR_OPCODE)
                   2472:            info->insn_type = dis_branch;
                   2473:          else
                   2474:            info->insn_type = dis_condbranch;
                   2475: 
                   2476:          info->target = (bfd_vma) where;
                   2477: 
                   2478:          *tp = 0;
                   2479:          tp = temp;
                   2480:          (*info->fprintf_func) (info->stream, "%s%s ",
                   2481:                                 temp, cris_cc_strings[insn >> 12]);
                   2482: 
                   2483:          (*info->print_address_func) ((bfd_vma) where, info);
                   2484:        }
                   2485:       break;
                   2486: 
                   2487:     case 'c':
                   2488:       tp = format_dec (insn & 31, tp, 0);
                   2489:       break;
                   2490: 
                   2491:     case 'C':
                   2492:       tp = format_dec (insn & 15, tp, 0);
                   2493:       break;
                   2494: 
                   2495:     case 'o':
                   2496:       {
                   2497:        long offset = insn & 0xfe;
                   2498:        bfd_vma target;
                   2499: 
                   2500:        if (insn & 1)
                   2501:          offset |= ~0xff;
                   2502: 
                   2503:        if (opcodep->match == BA_QUICK_OPCODE)
                   2504:          info->insn_type = dis_branch;
                   2505:        else
                   2506:          info->insn_type = dis_condbranch;
                   2507: 
                   2508:        target = addr + ((disdata->distype == cris_dis_v32) ? 0 : 2) + offset;
                   2509:        info->target = target;
                   2510:        *tp = 0;
                   2511:        tp = temp;
                   2512:        (*info->fprintf_func) (info->stream, "%s", temp);
                   2513:        (*info->print_address_func) (target, info);
                   2514:       }
                   2515:       break;
                   2516: 
                   2517:     case 'Q':
                   2518:     case 'O':
                   2519:       {
                   2520:        long number = buffer[0];
                   2521: 
                   2522:        if (number > 127)
                   2523:          number = number - 256;
                   2524: 
                   2525:        tp = format_dec (number, tp, 1);
                   2526:        *tp++ = ',';
                   2527:        tp = format_reg (disdata, (insn >> 12) & 15, tp, with_reg_prefix);
                   2528:       }
                   2529:       break;
                   2530: 
                   2531:     case 'f':
                   2532:       tp = print_flags (disdata, insn, tp);
                   2533:       break;
                   2534: 
                   2535:     case 'i':
                   2536:       tp = format_dec ((insn & 32) ? (insn & 31) | ~31L : insn & 31, tp, 1);
                   2537:       break;
                   2538: 
                   2539:     case 'P':
                   2540:       {
                   2541:        const struct cris_spec_reg *sregp
                   2542:          = spec_reg_info ((insn >> 12) & 15, disdata->distype);
                   2543: 
                   2544:        if (sregp->name == NULL)
                   2545:          /* Should have been caught as a non-match eariler.  */
                   2546:          *tp++ = '?';
                   2547:        else
                   2548:          {
                   2549:            if (with_reg_prefix)
                   2550:              *tp++ = REGISTER_PREFIX_CHAR;
                   2551:            strcpy (tp, sregp->name);
                   2552:            tp += strlen (tp);
                   2553:          }
                   2554:       }
                   2555:       break;
                   2556: 
                   2557:     default:
                   2558:       strcpy (tp, "???");
                   2559:       tp += 3;
                   2560:     }
                   2561:   }
                   2562: 
                   2563:   *tp = 0;
                   2564: 
                   2565:   if (prefix_opcodep)
                   2566:     (*info->fprintf_func) (info->stream, " (OOPS unused prefix \"%s: %s\")",
                   2567:                           prefix_opcodep->name, prefix_opcodep->args);
                   2568: 
                   2569:   (*info->fprintf_func) (info->stream, "%s", temp);
                   2570: 
                   2571:   /* Get info for matching case-tables, if we don't have any active.
                   2572:      We assume that the last constant seen is used; either in the insn
                   2573:      itself or in a "move.d const,rN, sub.d rN,rM"-like sequence.  */
                   2574:   if (TRACE_CASE && case_offset_counter == 0)
                   2575:     {
                   2576:       if (CONST_STRNEQ (opcodep->name, "sub"))
                   2577:        case_offset = last_immediate;
                   2578: 
                   2579:       /* It could also be an "add", if there are negative case-values.  */
                   2580:       else if (CONST_STRNEQ (opcodep->name, "add"))
                   2581:        /* The first case is the negated operand to the add.  */
                   2582:        case_offset = -last_immediate;
                   2583: 
                   2584:       /* A bound insn will tell us the number of cases.  */
                   2585:       else if (CONST_STRNEQ (opcodep->name, "bound"))
                   2586:        no_of_case_offsets = last_immediate + 1;
                   2587: 
                   2588:       /* A jump or jsr or branch breaks the chain of insns for a
                   2589:         case-table, so assume default first-case again.  */
                   2590:       else if (info->insn_type == dis_jsr
                   2591:               || info->insn_type == dis_branch
                   2592:               || info->insn_type == dis_condbranch)
                   2593:        case_offset = 0;
                   2594:     }
                   2595: }
                   2596: 
                   2597: 
                   2598: /* Print the CRIS instruction at address memaddr on stream.  Returns
                   2599:    length of the instruction, in bytes.  Prefix register names with `$' if
                   2600:    WITH_REG_PREFIX.  */
                   2601: 
                   2602: static int
                   2603: print_insn_cris_generic (bfd_vma memaddr,
                   2604:                         disassemble_info *info,
                   2605:                         bfd_boolean with_reg_prefix)
                   2606: {
                   2607:   int nbytes;
                   2608:   unsigned int insn;
                   2609:   const struct cris_opcode *matchedp;
                   2610:   int advance = 0;
                   2611:   struct cris_disasm_data *disdata
                   2612:     = (struct cris_disasm_data *) info->private_data;
                   2613: 
                   2614:   /* No instruction will be disassembled as longer than this number of
                   2615:      bytes; stacked prefixes will not be expanded.  */
                   2616:   unsigned char buffer[MAX_BYTES_PER_CRIS_INSN];
                   2617:   unsigned char *bufp;
                   2618:   int status = 0;
                   2619:   bfd_vma addr;
                   2620: 
                   2621:   /* There will be an "out of range" error after the last instruction.
                   2622:      Reading pairs of bytes in decreasing number, we hope that we will get
                   2623:      at least the amount that we will consume.
                   2624: 
                   2625:      If we can't get any data, or we do not get enough data, we print
                   2626:      the error message.  */
                   2627: 
                   2628:   for (nbytes = MAX_BYTES_PER_CRIS_INSN; nbytes > 0; nbytes -= 2)
                   2629:     {
                   2630:       status = (*info->read_memory_func) (memaddr, buffer, nbytes, info);
                   2631:       if (status == 0)
                   2632:        break;
                   2633:     }
                   2634: 
                   2635:   /* If we did not get all we asked for, then clear the rest.
                   2636:      Hopefully this makes a reproducible result in case of errors.  */
                   2637:   if (nbytes != MAX_BYTES_PER_CRIS_INSN)
                   2638:     memset (buffer + nbytes, 0, MAX_BYTES_PER_CRIS_INSN - nbytes);
                   2639: 
                   2640:   addr = memaddr;
                   2641:   bufp = buffer;
                   2642: 
                   2643:   /* Set some defaults for the insn info.  */
                   2644:   info->insn_info_valid = 1;
                   2645:   info->branch_delay_insns = 0;
                   2646:   info->data_size = 0;
                   2647:   info->insn_type = dis_nonbranch;
                   2648:   info->flags = 0;
                   2649:   info->target = 0;
                   2650:   info->target2 = 0;
                   2651: 
                   2652:   /* If we got any data, disassemble it.  */
                   2653:   if (nbytes != 0)
                   2654:     {
                   2655:       matchedp = NULL;
                   2656: 
                   2657:       insn = bufp[0] + bufp[1] * 256;
                   2658: 
                   2659:       /* If we're in a case-table, don't disassemble the offsets.  */
                   2660:       if (TRACE_CASE && case_offset_counter != 0)
                   2661:        {
                   2662:          info->insn_type = dis_noninsn;
                   2663:          advance += 2;
                   2664: 
                   2665:          /* If to print data as offsets, then shortcut here.  */
                   2666:          (*info->fprintf_func) (info->stream, "case %ld%s: -> ",
                   2667:                                 case_offset + no_of_case_offsets
                   2668:                                 - case_offset_counter,
                   2669:                                 case_offset_counter == 1 ? "/default" :
                   2670:                                 "");
                   2671: 
                   2672:          (*info->print_address_func) ((bfd_vma)
                   2673:                                       ((short) (insn)
                   2674:                                        + (long) (addr
                   2675:                                                  - (no_of_case_offsets
                   2676:                                                     - case_offset_counter)
                   2677:                                                  * 2)), info);
                   2678:          case_offset_counter--;
                   2679: 
                   2680:          /* The default case start (without a "sub" or "add") must be
                   2681:             zero.  */
                   2682:          if (case_offset_counter == 0)
                   2683:            case_offset = 0;
                   2684:        }
                   2685:       else if (insn == 0)
                   2686:        {
                   2687:          /* We're often called to disassemble zeroes.  While this is a
                   2688:             valid "bcc .+2" insn, it is also useless enough and enough
                   2689:             of a nuiscance that we will just output "bcc .+2" for it
                   2690:             and signal it as a noninsn.  */
                   2691:          (*info->fprintf_func) (info->stream,
                   2692:                                 disdata->distype == cris_dis_v32
                   2693:                                 ? "bcc ." : "bcc .+2");
                   2694:          info->insn_type = dis_noninsn;
                   2695:          advance += 2;
                   2696:        }
                   2697:       else
                   2698:        {
                   2699:          const struct cris_opcode *prefix_opcodep = NULL;
                   2700:          unsigned char *prefix_buffer = bufp;
                   2701:          unsigned int prefix_insn = insn;
                   2702:          int prefix_size = 0;
                   2703: 
                   2704:          matchedp = get_opcode_entry (insn, NO_CRIS_PREFIX, disdata);
                   2705: 
                   2706:          /* Check if we're supposed to write out prefixes as address
                   2707:             modes and if this was a prefix.  */
                   2708:          if (matchedp != NULL && PARSE_PREFIX && matchedp->args[0] == 'p')
                   2709:            {
                   2710:              /* If it's a prefix, put it into the prefix vars and get the
                   2711:                 main insn.  */
                   2712:              prefix_size = bytes_to_skip (prefix_insn, matchedp,
                   2713:                                           disdata->distype, NULL);
                   2714:              prefix_opcodep = matchedp;
                   2715: 
                   2716:              insn = bufp[prefix_size] + bufp[prefix_size + 1] * 256;
                   2717:              matchedp = get_opcode_entry (insn, prefix_insn, disdata);
                   2718: 
                   2719:              if (matchedp != NULL)
                   2720:                {
                   2721:                  addr += prefix_size;
                   2722:                  bufp += prefix_size;
                   2723:                  advance += prefix_size;
                   2724:                }
                   2725:              else
                   2726:                {
                   2727:                  /* The "main" insn wasn't valid, at least not when
                   2728:                     prefixed.  Put back things enough to output the
                   2729:                     prefix insn only, as a normal insn.  */
                   2730:                  matchedp = prefix_opcodep;
                   2731:                  insn = prefix_insn;
                   2732:                  prefix_opcodep = NULL;
                   2733:                }
                   2734:            }
                   2735: 
                   2736:          if (matchedp == NULL)
                   2737:            {
                   2738:              (*info->fprintf_func) (info->stream, "??0x%x", insn);
                   2739:              advance += 2;
                   2740: 
                   2741:              info->insn_type = dis_noninsn;
                   2742:            }
                   2743:          else
                   2744:            {
                   2745:              advance
                   2746:                += bytes_to_skip (insn, matchedp, disdata->distype,
                   2747:                                  prefix_opcodep);
                   2748: 
                   2749:              /* The info_type and assorted fields will be set according
                   2750:                 to the operands.   */
                   2751:              print_with_operands (matchedp, insn, bufp, addr, info,
                   2752:                                   prefix_opcodep, prefix_insn,
                   2753:                                   prefix_buffer, with_reg_prefix);
                   2754:            }
                   2755:        }
                   2756:     }
                   2757:   else
                   2758:     info->insn_type = dis_noninsn;
                   2759: 
                   2760:   /* If we read less than MAX_BYTES_PER_CRIS_INSN, i.e. we got an error
                   2761:      status when reading that much, and the insn decoding indicated a
                   2762:      length exceeding what we read, there is an error.  */
                   2763:   if (status != 0 && (nbytes == 0 || advance > nbytes))
                   2764:     {
                   2765:       (*info->memory_error_func) (status, memaddr, info);
                   2766:       return -1;
                   2767:     }
                   2768: 
                   2769:   /* Max supported insn size with one folded prefix insn.  */
                   2770:   info->bytes_per_line = MAX_BYTES_PER_CRIS_INSN;
                   2771: 
                   2772:   /* I would like to set this to a fixed value larger than the actual
                   2773:      number of bytes to print in order to avoid spaces between bytes,
                   2774:      but objdump.c (2.9.1) does not like that, so we print 16-bit
                   2775:      chunks, which is the next choice.  */
                   2776:   info->bytes_per_chunk = 2;
                   2777: 
                   2778:   /* Printing bytes in order of increasing addresses makes sense,
                   2779:      especially on a little-endian target.
                   2780:      This is completely the opposite of what you think; setting this to
                   2781:      BFD_ENDIAN_LITTLE will print bytes in order N..0 rather than the 0..N
                   2782:      we want.  */
                   2783:   info->display_endian = BFD_ENDIAN_BIG;
                   2784: 
                   2785:   return advance;
                   2786: }
                   2787: 
                   2788: /* Disassemble, prefixing register names with `$'.  CRIS v0..v10.  */
                   2789: #if 0
                   2790: static int
                   2791: print_insn_cris_with_register_prefix (bfd_vma vma,
                   2792:                                      disassemble_info *info)
                   2793: {
                   2794:   if (info->private_data == NULL
                   2795:       && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
                   2796:     return -1;
                   2797:   return print_insn_cris_generic (vma, info, TRUE);
                   2798: }
                   2799: #endif
                   2800: /* Disassemble, prefixing register names with `$'.  CRIS v32.  */
                   2801: 
                   2802: static int
                   2803: print_insn_crisv32_with_register_prefix (bfd_vma vma,
                   2804:                                         disassemble_info *info)
                   2805: {
                   2806:   if (info->private_data == NULL
                   2807:       && !cris_parse_disassembler_options (info, cris_dis_v32))
                   2808:     return -1;
                   2809:   return print_insn_cris_generic (vma, info, TRUE);
                   2810: }
                   2811: 
                   2812: #if 0
                   2813: /* Disassemble, prefixing register names with `$'.
                   2814:    Common v10 and v32 subset.  */
                   2815: 
                   2816: static int
                   2817: print_insn_crisv10_v32_with_register_prefix (bfd_vma vma,
                   2818:                                             disassemble_info *info)
                   2819: {
                   2820:   if (info->private_data == NULL
                   2821:       && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
                   2822:     return -1;
                   2823:   return print_insn_cris_generic (vma, info, TRUE);
                   2824: }
                   2825: 
                   2826: /* Disassemble, no prefixes on register names.  CRIS v0..v10.  */
                   2827: 
                   2828: static int
                   2829: print_insn_cris_without_register_prefix (bfd_vma vma,
                   2830:                                         disassemble_info *info)
                   2831: {
                   2832:   if (info->private_data == NULL
                   2833:       && !cris_parse_disassembler_options (info, cris_dis_v0_v10))
                   2834:     return -1;
                   2835:   return print_insn_cris_generic (vma, info, FALSE);
                   2836: }
                   2837: 
                   2838: /* Disassemble, no prefixes on register names.  CRIS v32.  */
                   2839: 
                   2840: static int
                   2841: print_insn_crisv32_without_register_prefix (bfd_vma vma,
                   2842:                                            disassemble_info *info)
                   2843: {
                   2844:   if (info->private_data == NULL
                   2845:       && !cris_parse_disassembler_options (info, cris_dis_v32))
                   2846:     return -1;
                   2847:   return print_insn_cris_generic (vma, info, FALSE);
                   2848: }
                   2849: 
                   2850: /* Disassemble, no prefixes on register names.
                   2851:    Common v10 and v32 subset.  */
                   2852: 
                   2853: static int
                   2854: print_insn_crisv10_v32_without_register_prefix (bfd_vma vma,
                   2855:                                                disassemble_info *info)
                   2856: {
                   2857:   if (info->private_data == NULL
                   2858:       && !cris_parse_disassembler_options (info, cris_dis_common_v10_v32))
                   2859:     return -1;
                   2860:   return print_insn_cris_generic (vma, info, FALSE);
                   2861: }
                   2862: #endif
                   2863: 
                   2864: int
                   2865: print_insn_crisv32 (bfd_vma vma,
                   2866:                    disassemble_info *info)
                   2867: {
                   2868:   return print_insn_crisv32_with_register_prefix(vma, info);
                   2869: }
                   2870: 
                   2871: /* Return a disassembler-function that prints registers with a `$' prefix,
                   2872:    or one that prints registers without a prefix.
                   2873:    FIXME: We should improve the solution to avoid the multitude of
                   2874:    functions seen above.  */
                   2875: #if 0
                   2876: disassembler_ftype
                   2877: cris_get_disassembler (bfd *abfd)
                   2878: {
                   2879:   /* If there's no bfd in sight, we return what is valid as input in all
                   2880:      contexts if fed back to the assembler: disassembly *with* register
                   2881:      prefix.  Unfortunately this will be totally wrong for v32.  */
                   2882:   if (abfd == NULL)
                   2883:     return print_insn_cris_with_register_prefix;
                   2884: 
                   2885:   if (bfd_get_symbol_leading_char (abfd) == 0)
                   2886:     {
                   2887:       if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
                   2888:        return print_insn_crisv32_with_register_prefix;
                   2889:       if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
                   2890:        return print_insn_crisv10_v32_with_register_prefix;
                   2891: 
                   2892:       /* We default to v10.  This may be specifically specified in the
                   2893:         bfd mach, but is also the default setting.  */
                   2894:       return print_insn_cris_with_register_prefix;
                   2895:     }
                   2896: 
                   2897:   if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
                   2898:     return print_insn_crisv32_without_register_prefix;
                   2899:   if (bfd_get_mach (abfd) == bfd_mach_cris_v10_v32)
                   2900:     return print_insn_crisv10_v32_without_register_prefix;
                   2901:   return print_insn_cris_without_register_prefix;
                   2902: }
                   2903: #endif
                   2904: /* Local variables:
                   2905:    eval: (c-set-style "gnu")
                   2906:    indent-tabs-mode: t
                   2907:    End:  */

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