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c2d551ff5a
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1416 c046a42c-6fe2-441c-8c8c-71466251a162
1681 lines
55 KiB
C
1681 lines
55 KiB
C
/* Instruction printing code for the ARM
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
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Free Software Foundation, Inc.
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Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
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Modification by James G. Smith (jsmith@cygnus.co.uk)
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This file is part of libopcodes.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "dis-asm.h"
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struct arm_opcode {
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unsigned long value, mask; /* recognise instruction if (op&mask)==value */
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char *assembler; /* how to disassemble this instruction */
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};
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struct thumb_opcode
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{
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unsigned short value, mask; /* recognise instruction if (op&mask)==value */
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char * assembler; /* how to disassemble this instruction */
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};
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/* format of the assembler string :
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%% %
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%<bitfield>d print the bitfield in decimal
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%<bitfield>x print the bitfield in hex
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%<bitfield>X print the bitfield as 1 hex digit without leading "0x"
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%<bitfield>r print as an ARM register
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%<bitfield>f print a floating point constant if >7 else a
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floating point register
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%<code>y print a single precision VFP reg.
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Codes: 0=>Sm, 1=>Sd, 2=>Sn, 3=>multi-list, 4=>Sm pair
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%<code>z print a double precision VFP reg
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Codes: 0=>Dm, 1=>Dd, 2=>Dn, 3=>multi-list
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%c print condition code (always bits 28-31)
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%P print floating point precision in arithmetic insn
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%Q print floating point precision in ldf/stf insn
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%R print floating point rounding mode
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%<bitnum>'c print specified char iff bit is one
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%<bitnum>`c print specified char iff bit is zero
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%<bitnum>?ab print a if bit is one else print b
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%p print 'p' iff bits 12-15 are 15
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%t print 't' iff bit 21 set and bit 24 clear
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%o print operand2 (immediate or register + shift)
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%a print address for ldr/str instruction
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%s print address for ldr/str halfword/signextend instruction
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%b print branch destination
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%B print arm BLX(1) destination
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%A print address for ldc/stc/ldf/stf instruction
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%m print register mask for ldm/stm instruction
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%C print the PSR sub type.
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%F print the COUNT field of a LFM/SFM instruction.
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Thumb specific format options:
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%D print Thumb register (bits 0..2 as high number if bit 7 set)
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%S print Thumb register (bits 3..5 as high number if bit 6 set)
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%<bitfield>I print bitfield as a signed decimal
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(top bit of range being the sign bit)
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%M print Thumb register mask
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%N print Thumb register mask (with LR)
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%O print Thumb register mask (with PC)
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%T print Thumb condition code (always bits 8-11)
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%I print cirrus signed shift immediate: bits 0..3|4..6
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%<bitfield>B print Thumb branch destination (signed displacement)
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%<bitfield>W print (bitfield * 4) as a decimal
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%<bitfield>H print (bitfield * 2) as a decimal
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%<bitfield>a print (bitfield * 4) as a pc-rel offset + decoded symbol
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*/
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/* Note: There is a partial ordering in this table - it must be searched from
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the top to obtain a correct match. */
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static struct arm_opcode arm_opcodes[] =
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{
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/* ARM instructions. */
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{0xe1a00000, 0xffffffff, "nop\t\t\t(mov r0,r0)"},
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{0x012FFF10, 0x0ffffff0, "bx%c\t%0-3r"},
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{0x00000090, 0x0fe000f0, "mul%c%20's\t%16-19r, %0-3r, %8-11r"},
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{0x00200090, 0x0fe000f0, "mla%c%20's\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x01000090, 0x0fb00ff0, "swp%c%22'b\t%12-15r, %0-3r, [%16-19r]"},
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{0x00800090, 0x0fa000f0, "%22?sumull%c%20's\t%12-15r, %16-19r, %0-3r, %8-11r"},
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{0x00a00090, 0x0fa000f0, "%22?sumlal%c%20's\t%12-15r, %16-19r, %0-3r, %8-11r"},
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/* V5J instruction. */
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{0x012fff20, 0x0ffffff0, "bxj%c\t%0-3r"},
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/* XScale instructions. */
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{0x0e200010, 0x0fff0ff0, "mia%c\tacc0, %0-3r, %12-15r"},
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{0x0e280010, 0x0fff0ff0, "miaph%c\tacc0, %0-3r, %12-15r"},
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{0x0e2c0010, 0x0ffc0ff0, "mia%17'T%17`B%16'T%16`B%c\tacc0, %0-3r, %12-15r"},
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{0x0c400000, 0x0ff00fff, "mar%c\tacc0, %12-15r, %16-19r"},
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{0x0c500000, 0x0ff00fff, "mra%c\t%12-15r, %16-19r, acc0"},
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{0xf450f000, 0xfc70f000, "pld\t%a"},
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/* V5 Instructions. */
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{0xe1200070, 0xfff000f0, "bkpt\t0x%16-19X%12-15X%8-11X%0-3X"},
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{0xfa000000, 0xfe000000, "blx\t%B"},
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{0x012fff30, 0x0ffffff0, "blx%c\t%0-3r"},
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{0x016f0f10, 0x0fff0ff0, "clz%c\t%12-15r, %0-3r"},
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{0xfc100000, 0xfe100000, "ldc2%22'l\t%8-11d, cr%12-15d, %A"},
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{0xfc000000, 0xfe100000, "stc2%22'l\t%8-11d, cr%12-15d, %A"},
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{0xfe000000, 0xff000010, "cdp2\t%8-11d, %20-23d, cr%12-15d, cr%16-19d, cr%0-3d, {%5-7d}"},
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{0xfe000010, 0xff100010, "mcr2\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
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{0xfe100010, 0xff100010, "mrc2\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
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/* V5E "El Segundo" Instructions. */
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{0x000000d0, 0x0e1000f0, "ldr%cd\t%12-15r, %s"},
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{0x000000f0, 0x0e1000f0, "str%cd\t%12-15r, %s"},
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{0x01000080, 0x0ff000f0, "smlabb%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x010000a0, 0x0ff000f0, "smlatb%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x010000c0, 0x0ff000f0, "smlabt%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x010000e0, 0x0ff000f0, "smlatt%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x01200080, 0x0ff000f0, "smlawb%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x012000c0, 0x0ff000f0, "smlawt%c\t%16-19r, %0-3r, %8-11r, %12-15r"},
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{0x01400080, 0x0ff000f0, "smlalbb%c\t%12-15r, %16-19r, %0-3r, %8-11r"},
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{0x014000a0, 0x0ff000f0, "smlaltb%c\t%12-15r, %16-19r, %0-3r, %8-11r"},
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{0x014000c0, 0x0ff000f0, "smlalbt%c\t%12-15r, %16-19r, %0-3r, %8-11r"},
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{0x014000e0, 0x0ff000f0, "smlaltt%c\t%12-15r, %16-19r, %0-3r, %8-11r"},
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{0x01600080, 0x0ff0f0f0, "smulbb%c\t%16-19r, %0-3r, %8-11r"},
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{0x016000a0, 0x0ff0f0f0, "smultb%c\t%16-19r, %0-3r, %8-11r"},
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{0x016000c0, 0x0ff0f0f0, "smulbt%c\t%16-19r, %0-3r, %8-11r"},
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{0x016000e0, 0x0ff0f0f0, "smultt%c\t%16-19r, %0-3r, %8-11r"},
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{0x012000a0, 0x0ff0f0f0, "smulwb%c\t%16-19r, %0-3r, %8-11r"},
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{0x012000e0, 0x0ff0f0f0, "smulwt%c\t%16-19r, %0-3r, %8-11r"},
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{0x01000050, 0x0ff00ff0, "qadd%c\t%12-15r, %0-3r, %16-19r"},
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{0x01400050, 0x0ff00ff0, "qdadd%c\t%12-15r, %0-3r, %16-19r"},
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{0x01200050, 0x0ff00ff0, "qsub%c\t%12-15r, %0-3r, %16-19r"},
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{0x01600050, 0x0ff00ff0, "qdsub%c\t%12-15r, %0-3r, %16-19r"},
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{0x0c400000, 0x0ff00000, "mcrr%c\t%8-11d, %4-7d, %12-15r, %16-19r, cr%0-3d"},
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{0x0c500000, 0x0ff00000, "mrrc%c\t%8-11d, %4-7d, %12-15r, %16-19r, cr%0-3d"},
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/* ARM Instructions. */
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{0x00000090, 0x0e100090, "str%c%6's%5?hb\t%12-15r, %s"},
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{0x00100090, 0x0e100090, "ldr%c%6's%5?hb\t%12-15r, %s"},
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{0x00000000, 0x0de00000, "and%c%20's\t%12-15r, %16-19r, %o"},
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{0x00200000, 0x0de00000, "eor%c%20's\t%12-15r, %16-19r, %o"},
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{0x00400000, 0x0de00000, "sub%c%20's\t%12-15r, %16-19r, %o"},
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{0x00600000, 0x0de00000, "rsb%c%20's\t%12-15r, %16-19r, %o"},
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{0x00800000, 0x0de00000, "add%c%20's\t%12-15r, %16-19r, %o"},
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{0x00a00000, 0x0de00000, "adc%c%20's\t%12-15r, %16-19r, %o"},
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{0x00c00000, 0x0de00000, "sbc%c%20's\t%12-15r, %16-19r, %o"},
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{0x00e00000, 0x0de00000, "rsc%c%20's\t%12-15r, %16-19r, %o"},
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{0x0120f000, 0x0db0f000, "msr%c\t%22?SCPSR%C, %o"},
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{0x010f0000, 0x0fbf0fff, "mrs%c\t%12-15r, %22?SCPSR"},
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{0x01000000, 0x0de00000, "tst%c%p\t%16-19r, %o"},
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{0x01200000, 0x0de00000, "teq%c%p\t%16-19r, %o"},
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{0x01400000, 0x0de00000, "cmp%c%p\t%16-19r, %o"},
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{0x01600000, 0x0de00000, "cmn%c%p\t%16-19r, %o"},
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{0x01800000, 0x0de00000, "orr%c%20's\t%12-15r, %16-19r, %o"},
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{0x01a00000, 0x0de00000, "mov%c%20's\t%12-15r, %o"},
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{0x01c00000, 0x0de00000, "bic%c%20's\t%12-15r, %16-19r, %o"},
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{0x01e00000, 0x0de00000, "mvn%c%20's\t%12-15r, %o"},
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{0x04000000, 0x0e100000, "str%c%22'b%t\t%12-15r, %a"},
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{0x06000000, 0x0e100ff0, "str%c%22'b%t\t%12-15r, %a"},
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{0x04000000, 0x0c100010, "str%c%22'b%t\t%12-15r, %a"},
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{0x06000010, 0x0e000010, "undefined"},
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{0x04100000, 0x0c100000, "ldr%c%22'b%t\t%12-15r, %a"},
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{0x08000000, 0x0e100000, "stm%c%23?id%24?ba\t%16-19r%21'!, %m%22'^"},
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{0x08100000, 0x0e100000, "ldm%c%23?id%24?ba\t%16-19r%21'!, %m%22'^"},
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{0x0a000000, 0x0e000000, "b%24'l%c\t%b"},
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{0x0f000000, 0x0f000000, "swi%c\t%0-23x"},
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/* Floating point coprocessor (FPA) instructions */
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{0x0e000100, 0x0ff08f10, "adf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e100100, 0x0ff08f10, "muf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e200100, 0x0ff08f10, "suf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e300100, 0x0ff08f10, "rsf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e400100, 0x0ff08f10, "dvf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e500100, 0x0ff08f10, "rdf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e600100, 0x0ff08f10, "pow%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e700100, 0x0ff08f10, "rpw%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e800100, 0x0ff08f10, "rmf%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e900100, 0x0ff08f10, "fml%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0ea00100, 0x0ff08f10, "fdv%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0eb00100, 0x0ff08f10, "frd%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0ec00100, 0x0ff08f10, "pol%c%P%R\t%12-14f, %16-18f, %0-3f"},
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{0x0e008100, 0x0ff08f10, "mvf%c%P%R\t%12-14f, %0-3f"},
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{0x0e108100, 0x0ff08f10, "mnf%c%P%R\t%12-14f, %0-3f"},
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{0x0e208100, 0x0ff08f10, "abs%c%P%R\t%12-14f, %0-3f"},
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{0x0e308100, 0x0ff08f10, "rnd%c%P%R\t%12-14f, %0-3f"},
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{0x0e408100, 0x0ff08f10, "sqt%c%P%R\t%12-14f, %0-3f"},
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{0x0e508100, 0x0ff08f10, "log%c%P%R\t%12-14f, %0-3f"},
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{0x0e608100, 0x0ff08f10, "lgn%c%P%R\t%12-14f, %0-3f"},
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{0x0e708100, 0x0ff08f10, "exp%c%P%R\t%12-14f, %0-3f"},
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||
{0x0e808100, 0x0ff08f10, "sin%c%P%R\t%12-14f, %0-3f"},
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{0x0e908100, 0x0ff08f10, "cos%c%P%R\t%12-14f, %0-3f"},
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{0x0ea08100, 0x0ff08f10, "tan%c%P%R\t%12-14f, %0-3f"},
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{0x0eb08100, 0x0ff08f10, "asn%c%P%R\t%12-14f, %0-3f"},
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||
{0x0ec08100, 0x0ff08f10, "acs%c%P%R\t%12-14f, %0-3f"},
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||
{0x0ed08100, 0x0ff08f10, "atn%c%P%R\t%12-14f, %0-3f"},
|
||
{0x0ee08100, 0x0ff08f10, "urd%c%P%R\t%12-14f, %0-3f"},
|
||
{0x0ef08100, 0x0ff08f10, "nrm%c%P%R\t%12-14f, %0-3f"},
|
||
{0x0e000110, 0x0ff00f1f, "flt%c%P%R\t%16-18f, %12-15r"},
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||
{0x0e100110, 0x0fff0f98, "fix%c%R\t%12-15r, %0-2f"},
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||
{0x0e200110, 0x0fff0fff, "wfs%c\t%12-15r"},
|
||
{0x0e300110, 0x0fff0fff, "rfs%c\t%12-15r"},
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||
{0x0e400110, 0x0fff0fff, "wfc%c\t%12-15r"},
|
||
{0x0e500110, 0x0fff0fff, "rfc%c\t%12-15r"},
|
||
{0x0e90f110, 0x0ff8fff0, "cmf%c\t%16-18f, %0-3f"},
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||
{0x0eb0f110, 0x0ff8fff0, "cnf%c\t%16-18f, %0-3f"},
|
||
{0x0ed0f110, 0x0ff8fff0, "cmfe%c\t%16-18f, %0-3f"},
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||
{0x0ef0f110, 0x0ff8fff0, "cnfe%c\t%16-18f, %0-3f"},
|
||
{0x0c000100, 0x0e100f00, "stf%c%Q\t%12-14f, %A"},
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||
{0x0c100100, 0x0e100f00, "ldf%c%Q\t%12-14f, %A"},
|
||
{0x0c000200, 0x0e100f00, "sfm%c\t%12-14f, %F, %A"},
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||
{0x0c100200, 0x0e100f00, "lfm%c\t%12-14f, %F, %A"},
|
||
|
||
/* Floating point coprocessor (VFP) instructions */
|
||
{0x0eb00bc0, 0x0fff0ff0, "fabsd%c\t%1z, %0z"},
|
||
{0x0eb00ac0, 0x0fbf0fd0, "fabss%c\t%1y, %0y"},
|
||
{0x0e300b00, 0x0ff00ff0, "faddd%c\t%1z, %2z, %0z"},
|
||
{0x0e300a00, 0x0fb00f50, "fadds%c\t%1y, %2y, %1y"},
|
||
{0x0eb40b40, 0x0fff0f70, "fcmp%7'ed%c\t%1z, %0z"},
|
||
{0x0eb40a40, 0x0fbf0f50, "fcmp%7'es%c\t%1y, %0y"},
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||
{0x0eb50b40, 0x0fff0f70, "fcmp%7'ezd%c\t%1z"},
|
||
{0x0eb50a40, 0x0fbf0f70, "fcmp%7'ezs%c\t%1y"},
|
||
{0x0eb00b40, 0x0fff0ff0, "fcpyd%c\t%1z, %0z"},
|
||
{0x0eb00a40, 0x0fbf0fd0, "fcpys%c\t%1y, %0y"},
|
||
{0x0eb70ac0, 0x0fff0fd0, "fcvtds%c\t%1z, %0y"},
|
||
{0x0eb70bc0, 0x0fbf0ff0, "fcvtsd%c\t%1y, %0z"},
|
||
{0x0e800b00, 0x0ff00ff0, "fdivd%c\t%1z, %2z, %0z"},
|
||
{0x0e800a00, 0x0fb00f50, "fdivs%c\t%1y, %2y, %0y"},
|
||
{0x0d100b00, 0x0f700f00, "fldd%c\t%1z, %A"},
|
||
{0x0c900b00, 0x0fd00f00, "fldmia%0?xd%c\t%16-19r%21'!, %3z"},
|
||
{0x0d300b00, 0x0ff00f00, "fldmdb%0?xd%c\t%16-19r!, %3z"},
|
||
{0x0d100a00, 0x0f300f00, "flds%c\t%1y, %A"},
|
||
{0x0c900a00, 0x0f900f00, "fldmias%c\t%16-19r%21'!, %3y"},
|
||
{0x0d300a00, 0x0fb00f00, "fldmdbs%c\t%16-19r!, %3y"},
|
||
{0x0e000b00, 0x0ff00ff0, "fmacd%c\t%1z, %2z, %0z"},
|
||
{0x0e000a00, 0x0fb00f50, "fmacs%c\t%1y, %2y, %0y"},
|
||
{0x0e200b10, 0x0ff00fff, "fmdhr%c\t%2z, %12-15r"},
|
||
{0x0e000b10, 0x0ff00fff, "fmdlr%c\t%2z, %12-15r"},
|
||
{0x0c400b10, 0x0ff00ff0, "fmdrr%c\t%0z, %12-15r, %16-19r"},
|
||
{0x0e300b10, 0x0ff00fff, "fmrdh%c\t%12-15r, %2z"},
|
||
{0x0e100b10, 0x0ff00fff, "fmrdl%c\t%12-15r, %2z"},
|
||
{0x0c500b10, 0x0ff00ff0, "fmrrd%c\t%12-15r, %16-19r, %0z"},
|
||
{0x0c500a10, 0x0ff00fd0, "fmrrs%c\t%12-15r, %16-19r, %4y"},
|
||
{0x0e100a10, 0x0ff00f7f, "fmrs%c\t%12-15r, %2y"},
|
||
{0x0ef1fa10, 0x0fffffff, "fmstat%c"},
|
||
{0x0ef00a10, 0x0fff0fff, "fmrx%c\t%12-15r, fpsid"},
|
||
{0x0ef10a10, 0x0fff0fff, "fmrx%c\t%12-15r, fpscr"},
|
||
{0x0ef80a10, 0x0fff0fff, "fmrx%c\t%12-15r, fpexc"},
|
||
{0x0ef90a10, 0x0fff0fff, "fmrx%c\t%12-15r, fpinst\t@ Impl def"},
|
||
{0x0efa0a10, 0x0fff0fff, "fmrx%c\t%12-15r, fpinst2\t@ Impl def"},
|
||
{0x0ef00a10, 0x0ff00fff, "fmrx%c\t%12-15r, <impl def 0x%16-19x>"},
|
||
{0x0e100b00, 0x0ff00ff0, "fmscd%c\t%1z, %2z, %0z"},
|
||
{0x0e100a00, 0x0fb00f50, "fmscs%c\t%1y, %2y, %0y"},
|
||
{0x0e000a10, 0x0ff00f7f, "fmsr%c\t%2y, %12-15r"},
|
||
{0x0c400a10, 0x0ff00fd0, "fmsrr%c\t%12-15r, %16-19r, %4y"},
|
||
{0x0e200b00, 0x0ff00ff0, "fmuld%c\t%1z, %2z, %0z"},
|
||
{0x0e200a00, 0x0fb00f50, "fmuls%c\t%1y, %2y, %0y"},
|
||
{0x0ee00a10, 0x0fff0fff, "fmxr%c\tfpsid, %12-15r"},
|
||
{0x0ee10a10, 0x0fff0fff, "fmxr%c\tfpscr, %12-15r"},
|
||
{0x0ee80a10, 0x0fff0fff, "fmxr%c\tfpexc, %12-15r"},
|
||
{0x0ee90a10, 0x0fff0fff, "fmxr%c\tfpinst, %12-15r\t@ Impl def"},
|
||
{0x0eea0a10, 0x0fff0fff, "fmxr%c\tfpinst2, %12-15r\t@ Impl def"},
|
||
{0x0ee00a10, 0x0ff00fff, "fmxr%c\t<impl def 0x%16-19x>, %12-15r"},
|
||
{0x0eb10b40, 0x0fff0ff0, "fnegd%c\t%1z, %0z"},
|
||
{0x0eb10a40, 0x0fbf0fd0, "fnegs%c\t%1y, %0y"},
|
||
{0x0e000b40, 0x0ff00ff0, "fnmacd%c\t%1z, %2z, %0z"},
|
||
{0x0e000a40, 0x0fb00f50, "fnmacs%c\t%1y, %2y, %0y"},
|
||
{0x0e100b40, 0x0ff00ff0, "fnmscd%c\t%1z, %2z, %0z"},
|
||
{0x0e100a40, 0x0fb00f50, "fnmscs%c\t%1y, %2y, %0y"},
|
||
{0x0e200b40, 0x0ff00ff0, "fnmuld%c\t%1z, %2z, %0z"},
|
||
{0x0e200a40, 0x0fb00f50, "fnmuls%c\t%1y, %2y, %0y"},
|
||
{0x0eb80bc0, 0x0fff0fd0, "fsitod%c\t%1z, %0y"},
|
||
{0x0eb80ac0, 0x0fbf0fd0, "fsitos%c\t%1y, %0y"},
|
||
{0x0eb10bc0, 0x0fff0ff0, "fsqrtd%c\t%1z, %0z"},
|
||
{0x0eb10ac0, 0x0fbf0fd0, "fsqrts%c\t%1y, %0y"},
|
||
{0x0d000b00, 0x0f700f00, "fstd%c\t%1z, %A"},
|
||
{0x0c800b00, 0x0fd00f00, "fstmia%0?xd%c\t%16-19r%21'!, %3z"},
|
||
{0x0d200b00, 0x0ff00f00, "fstmdb%0?xd%c\t%16-19r!, %3z"},
|
||
{0x0d000a00, 0x0f300f00, "fsts%c\t%1y, %A"},
|
||
{0x0c800a00, 0x0f900f00, "fstmias%c\t%16-19r%21'!, %3y"},
|
||
{0x0d200a00, 0x0fb00f00, "fstmdbs%c\t%16-19r!, %3y"},
|
||
{0x0e300b40, 0x0ff00ff0, "fsubd%c\t%1z, %2z, %0z"},
|
||
{0x0e300a40, 0x0fb00f50, "fsubs%c\t%1y, %2y, %0y"},
|
||
{0x0ebc0b40, 0x0fbe0f70, "fto%16?sui%7'zd%c\t%1y, %0z"},
|
||
{0x0ebc0a40, 0x0fbe0f50, "fto%16?sui%7'zs%c\t%1y, %0y"},
|
||
{0x0eb80b40, 0x0fff0fd0, "fuitod%c\t%1z, %0y"},
|
||
{0x0eb80a40, 0x0fbf0fd0, "fuitos%c\t%1y, %0y"},
|
||
|
||
/* Cirrus coprocessor instructions. */
|
||
{0x0d100400, 0x0f500f00, "cfldrs%c\tmvf%12-15d, %A"},
|
||
{0x0c100400, 0x0f500f00, "cfldrs%c\tmvf%12-15d, %A"},
|
||
{0x0d500400, 0x0f500f00, "cfldrd%c\tmvd%12-15d, %A"},
|
||
{0x0c500400, 0x0f500f00, "cfldrd%c\tmvd%12-15d, %A"},
|
||
{0x0d100500, 0x0f500f00, "cfldr32%c\tmvfx%12-15d, %A"},
|
||
{0x0c100500, 0x0f500f00, "cfldr32%c\tmvfx%12-15d, %A"},
|
||
{0x0d500500, 0x0f500f00, "cfldr64%c\tmvdx%12-15d, %A"},
|
||
{0x0c500500, 0x0f500f00, "cfldr64%c\tmvdx%12-15d, %A"},
|
||
{0x0d000400, 0x0f500f00, "cfstrs%c\tmvf%12-15d, %A"},
|
||
{0x0c000400, 0x0f500f00, "cfstrs%c\tmvf%12-15d, %A"},
|
||
{0x0d400400, 0x0f500f00, "cfstrd%c\tmvd%12-15d, %A"},
|
||
{0x0c400400, 0x0f500f00, "cfstrd%c\tmvd%12-15d, %A"},
|
||
{0x0d000500, 0x0f500f00, "cfstr32%c\tmvfx%12-15d, %A"},
|
||
{0x0c000500, 0x0f500f00, "cfstr32%c\tmvfx%12-15d, %A"},
|
||
{0x0d400500, 0x0f500f00, "cfstr64%c\tmvdx%12-15d, %A"},
|
||
{0x0c400500, 0x0f500f00, "cfstr64%c\tmvdx%12-15d, %A"},
|
||
{0x0e000450, 0x0ff00ff0, "cfmvsr%c\tmvf%16-19d, %12-15r"},
|
||
{0x0e100450, 0x0ff00ff0, "cfmvrs%c\t%12-15r, mvf%16-19d"},
|
||
{0x0e000410, 0x0ff00ff0, "cfmvdlr%c\tmvd%16-19d, %12-15r"},
|
||
{0x0e100410, 0x0ff00ff0, "cfmvrdl%c\t%12-15r, mvd%16-19d"},
|
||
{0x0e000430, 0x0ff00ff0, "cfmvdhr%c\tmvd%16-19d, %12-15r"},
|
||
{0x0e100430, 0x0ff00fff, "cfmvrdh%c\t%12-15r, mvd%16-19d"},
|
||
{0x0e000510, 0x0ff00fff, "cfmv64lr%c\tmvdx%16-19d, %12-15r"},
|
||
{0x0e100510, 0x0ff00fff, "cfmvr64l%c\t%12-15r, mvdx%16-19d"},
|
||
{0x0e000530, 0x0ff00fff, "cfmv64hr%c\tmvdx%16-19d, %12-15r"},
|
||
{0x0e100530, 0x0ff00fff, "cfmvr64h%c\t%12-15r, mvdx%16-19d"},
|
||
{0x0e100610, 0x0ff0fff0, "cfmval32%c\tmvax%0-3d, mvfx%16-19d"},
|
||
{0x0e000610, 0x0ff0fff0, "cfmv32al%c\tmvfx%0-3d, mvax%16-19d"},
|
||
{0x0e100630, 0x0ff0fff0, "cfmvam32%c\tmvax%0-3d, mvfx%16-19d"},
|
||
{0x0e000630, 0x0ff0fff0, "cfmv32am%c\tmvfx%0-3d, mvax%16-19d"},
|
||
{0x0e100650, 0x0ff0fff0, "cfmvah32%c\tmvax%0-3d, mvfx%16-19d"},
|
||
{0x0e000650, 0x0ff0fff0, "cfmv32ah%c\tmvfx%0-3d, mvax%16-19d"},
|
||
{0x0e000670, 0x0ff0fff0, "cfmv32a%c\tmvfx%0-3d, mvax%16-19d"},
|
||
{0x0e100670, 0x0ff0fff0, "cfmva32%c\tmvax%0-3d, mvfx%16-19d"},
|
||
{0x0e000690, 0x0ff0fff0, "cfmv64a%c\tmvdx%0-3d, mvax%16-19d"},
|
||
{0x0e100690, 0x0ff0fff0, "cfmva64%c\tmvax%0-3d, mvdx%16-19d"},
|
||
{0x0e1006b0, 0x0ff0fff0, "cfmvsc32%c\tdspsc, mvfx%16-19d"},
|
||
{0x0e0006b0, 0x0ff0fff0, "cfmv32sc%c\tmvfx%0-3d, dspsc"},
|
||
{0x0e000400, 0x0ff00fff, "cfcpys%c\tmvf%12-15d, mvf%16-19d"},
|
||
{0x0e000420, 0x0ff00fff, "cfcpyd%c\tmvd%12-15d, mvd%16-19d"},
|
||
{0x0e000460, 0x0ff00fff, "cfcvtsd%c\tmvd%12-15d, mvf%16-19d"},
|
||
{0x0e000440, 0x0ff00fff, "cfcvtds%c\tmvf%12-15d, mvd%16-19d"},
|
||
{0x0e000480, 0x0ff00fff, "cfcvt32s%c\tmvf%12-15d, mvfx%16-19d"},
|
||
{0x0e0004a0, 0x0ff00fff, "cfcvt32d%c\tmvd%12-15d, mvfx%16-19d"},
|
||
{0x0e0004c0, 0x0ff00fff, "cfcvt64s%c\tmvf%12-15d, mvdx%16-19d"},
|
||
{0x0e0004e0, 0x0ff00fff, "cfcvt64d%c\tmvd%12-15d, mvdx%16-19d"},
|
||
{0x0e100580, 0x0ff00fff, "cfcvts32%c\tmvfx%12-15d, mvf%16-19d"},
|
||
{0x0e1005a0, 0x0ff00fff, "cfcvtd32%c\tmvfx%12-15d, mvd%16-19d"},
|
||
{0x0e1005c0, 0x0ff00fff, "cftruncs32%c\tmvfx%12-15d, mvf%16-19d"},
|
||
{0x0e1005e0, 0x0ff00fff, "cftruncd32%c\tmvfx%12-15d, mvd%16-19d"},
|
||
{0x0e000550, 0x0ff00ff0, "cfrshl32%c\tmvfx%16-19d, mvfx%0-3d, %12-15r"},
|
||
{0x0e000570, 0x0ff00ff0, "cfrshl64%c\tmvdx%16-19d, mvdx%0-3d, %12-15r"},
|
||
{0x0e000500, 0x0ff00f00, "cfsh32%c\tmvfx%12-15d, mvfx%16-19d, #%I"},
|
||
{0x0e200500, 0x0ff00f00, "cfsh64%c\tmvdx%12-15d, mvdx%16-19d, #%I"},
|
||
{0x0e100490, 0x0ff00ff0, "cfcmps%c\t%12-15r, mvf%16-19d, mvf%0-3d"},
|
||
{0x0e1004b0, 0x0ff00ff0, "cfcmpd%c\t%12-15r, mvd%16-19d, mvd%0-3d"},
|
||
{0x0e100590, 0x0ff00ff0, "cfcmp32%c\t%12-15r, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e1005b0, 0x0ff00ff0, "cfcmp64%c\t%12-15r, mvdx%16-19d, mvdx%0-3d"},
|
||
{0x0e300400, 0x0ff00fff, "cfabss%c\tmvf%12-15d, mvf%16-19d"},
|
||
{0x0e300420, 0x0ff00fff, "cfabsd%c\tmvd%12-15d, mvd%16-19d"},
|
||
{0x0e300440, 0x0ff00fff, "cfnegs%c\tmvf%12-15d, mvf%16-19d"},
|
||
{0x0e300460, 0x0ff00fff, "cfnegd%c\tmvd%12-15d, mvd%16-19d"},
|
||
{0x0e300480, 0x0ff00ff0, "cfadds%c\tmvf%12-15d, mvf%16-19d, mvf%0-3d"},
|
||
{0x0e3004a0, 0x0ff00ff0, "cfaddd%c\tmvd%12-15d, mvd%16-19d, mvd%0-3d"},
|
||
{0x0e3004c0, 0x0ff00ff0, "cfsubs%c\tmvf%12-15d, mvf%16-19d, mvf%0-3d"},
|
||
{0x0e3004e0, 0x0ff00ff0, "cfsubd%c\tmvd%12-15d, mvd%16-19d, mvd%0-3d"},
|
||
{0x0e100400, 0x0ff00ff0, "cfmuls%c\tmvf%12-15d, mvf%16-19d, mvf%0-3d"},
|
||
{0x0e100420, 0x0ff00ff0, "cfmuld%c\tmvd%12-15d, mvd%16-19d, mvd%0-3d"},
|
||
{0x0e300500, 0x0ff00fff, "cfabs32%c\tmvfx%12-15d, mvfx%16-19d"},
|
||
{0x0e300520, 0x0ff00fff, "cfabs64%c\tmvdx%12-15d, mvdx%16-19d"},
|
||
{0x0e300540, 0x0ff00fff, "cfneg32%c\tmvfx%12-15d, mvfx%16-19d"},
|
||
{0x0e300560, 0x0ff00fff, "cfneg64%c\tmvdx%12-15d, mvdx%16-19d"},
|
||
{0x0e300580, 0x0ff00ff0, "cfadd32%c\tmvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e3005a0, 0x0ff00ff0, "cfadd64%c\tmvdx%12-15d, mvdx%16-19d, mvdx%0-3d"},
|
||
{0x0e3005c0, 0x0ff00ff0, "cfsub32%c\tmvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e3005e0, 0x0ff00ff0, "cfsub64%c\tmvdx%12-15d, mvdx%16-19d, mvdx%0-3d"},
|
||
{0x0e100500, 0x0ff00ff0, "cfmul32%c\tmvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e100520, 0x0ff00ff0, "cfmul64%c\tmvdx%12-15d, mvdx%16-19d, mvdx%0-3d"},
|
||
{0x0e100540, 0x0ff00ff0, "cfmac32%c\tmvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e100560, 0x0ff00ff0, "cfmsc32%c\tmvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e000600, 0x0ff00f00, "cfmadd32%c\tmvax%5-7d, mvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e100600, 0x0ff00f00, "cfmsub32%c\tmvax%5-7d, mvfx%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e200600, 0x0ff00f00, "cfmadda32%c\tmvax%5-7d, mvax%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
{0x0e300600, 0x0ff00f00, "cfmsuba32%c\tmvax%5-7d, mvax%12-15d, mvfx%16-19d, mvfx%0-3d"},
|
||
|
||
/* Generic coprocessor instructions */
|
||
{0x0e000000, 0x0f000010, "cdp%c\t%8-11d, %20-23d, cr%12-15d, cr%16-19d, cr%0-3d, {%5-7d}"},
|
||
{0x0e100010, 0x0f100010, "mrc%c\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
|
||
{0x0e000010, 0x0f100010, "mcr%c\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
|
||
{0x0c000000, 0x0e100000, "stc%c%22'l\t%8-11d, cr%12-15d, %A"},
|
||
{0x0c100000, 0x0e100000, "ldc%c%22'l\t%8-11d, cr%12-15d, %A"},
|
||
|
||
/* The rest. */
|
||
{0x00000000, 0x00000000, "undefined instruction %0-31x"},
|
||
{0x00000000, 0x00000000, 0}
|
||
};
|
||
|
||
#define BDISP(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000) /* 26 bit */
|
||
|
||
static struct thumb_opcode thumb_opcodes[] =
|
||
{
|
||
/* Thumb instructions. */
|
||
|
||
/* ARM V5 ISA extends Thumb. */
|
||
{0xbe00, 0xff00, "bkpt\t%0-7x"},
|
||
{0x4780, 0xff87, "blx\t%3-6r"}, /* note: 4 bit register number. */
|
||
/* Note: this is BLX(2). BLX(1) is done in arm-dis.c/print_insn_thumb()
|
||
as an extension of the special processing there for Thumb BL.
|
||
BL and BLX(1) involve 2 successive 16-bit instructions, which must
|
||
always appear together in the correct order. So, the empty
|
||
string is put in this table, and the string interpreter takes <empty>
|
||
to mean it has a pair of BL-ish instructions. */
|
||
{0x46C0, 0xFFFF, "nop\t\t\t(mov r8, r8)"},
|
||
/* Format 5 instructions do not update the PSR. */
|
||
{0x1C00, 0xFFC0, "mov\t%0-2r, %3-5r\t\t(add %0-2r, %3-5r, #%6-8d)"},
|
||
/* Format 4. */
|
||
{0x4000, 0xFFC0, "and\t%0-2r, %3-5r"},
|
||
{0x4040, 0xFFC0, "eor\t%0-2r, %3-5r"},
|
||
{0x4080, 0xFFC0, "lsl\t%0-2r, %3-5r"},
|
||
{0x40C0, 0xFFC0, "lsr\t%0-2r, %3-5r"},
|
||
{0x4100, 0xFFC0, "asr\t%0-2r, %3-5r"},
|
||
{0x4140, 0xFFC0, "adc\t%0-2r, %3-5r"},
|
||
{0x4180, 0xFFC0, "sbc\t%0-2r, %3-5r"},
|
||
{0x41C0, 0xFFC0, "ror\t%0-2r, %3-5r"},
|
||
{0x4200, 0xFFC0, "tst\t%0-2r, %3-5r"},
|
||
{0x4240, 0xFFC0, "neg\t%0-2r, %3-5r"},
|
||
{0x4280, 0xFFC0, "cmp\t%0-2r, %3-5r"},
|
||
{0x42C0, 0xFFC0, "cmn\t%0-2r, %3-5r"},
|
||
{0x4300, 0xFFC0, "orr\t%0-2r, %3-5r"},
|
||
{0x4340, 0xFFC0, "mul\t%0-2r, %3-5r"},
|
||
{0x4380, 0xFFC0, "bic\t%0-2r, %3-5r"},
|
||
{0x43C0, 0xFFC0, "mvn\t%0-2r, %3-5r"},
|
||
/* format 13 */
|
||
{0xB000, 0xFF80, "add\tsp, #%0-6W"},
|
||
{0xB080, 0xFF80, "sub\tsp, #%0-6W"},
|
||
/* format 5 */
|
||
{0x4700, 0xFF80, "bx\t%S"},
|
||
{0x4400, 0xFF00, "add\t%D, %S"},
|
||
{0x4500, 0xFF00, "cmp\t%D, %S"},
|
||
{0x4600, 0xFF00, "mov\t%D, %S"},
|
||
/* format 14 */
|
||
{0xB400, 0xFE00, "push\t%N"},
|
||
{0xBC00, 0xFE00, "pop\t%O"},
|
||
/* format 2 */
|
||
{0x1800, 0xFE00, "add\t%0-2r, %3-5r, %6-8r"},
|
||
{0x1A00, 0xFE00, "sub\t%0-2r, %3-5r, %6-8r"},
|
||
{0x1C00, 0xFE00, "add\t%0-2r, %3-5r, #%6-8d"},
|
||
{0x1E00, 0xFE00, "sub\t%0-2r, %3-5r, #%6-8d"},
|
||
/* format 8 */
|
||
{0x5200, 0xFE00, "strh\t%0-2r, [%3-5r, %6-8r]"},
|
||
{0x5A00, 0xFE00, "ldrh\t%0-2r, [%3-5r, %6-8r]"},
|
||
{0x5600, 0xF600, "ldrs%11?hb\t%0-2r, [%3-5r, %6-8r]"},
|
||
/* format 7 */
|
||
{0x5000, 0xFA00, "str%10'b\t%0-2r, [%3-5r, %6-8r]"},
|
||
{0x5800, 0xFA00, "ldr%10'b\t%0-2r, [%3-5r, %6-8r]"},
|
||
/* format 1 */
|
||
{0x0000, 0xF800, "lsl\t%0-2r, %3-5r, #%6-10d"},
|
||
{0x0800, 0xF800, "lsr\t%0-2r, %3-5r, #%6-10d"},
|
||
{0x1000, 0xF800, "asr\t%0-2r, %3-5r, #%6-10d"},
|
||
/* format 3 */
|
||
{0x2000, 0xF800, "mov\t%8-10r, #%0-7d"},
|
||
{0x2800, 0xF800, "cmp\t%8-10r, #%0-7d"},
|
||
{0x3000, 0xF800, "add\t%8-10r, #%0-7d"},
|
||
{0x3800, 0xF800, "sub\t%8-10r, #%0-7d"},
|
||
/* format 6 */
|
||
{0x4800, 0xF800, "ldr\t%8-10r, [pc, #%0-7W]\t(%0-7a)"}, /* TODO: Disassemble PC relative "LDR rD,=<symbolic>" */
|
||
/* format 9 */
|
||
{0x6000, 0xF800, "str\t%0-2r, [%3-5r, #%6-10W]"},
|
||
{0x6800, 0xF800, "ldr\t%0-2r, [%3-5r, #%6-10W]"},
|
||
{0x7000, 0xF800, "strb\t%0-2r, [%3-5r, #%6-10d]"},
|
||
{0x7800, 0xF800, "ldrb\t%0-2r, [%3-5r, #%6-10d]"},
|
||
/* format 10 */
|
||
{0x8000, 0xF800, "strh\t%0-2r, [%3-5r, #%6-10H]"},
|
||
{0x8800, 0xF800, "ldrh\t%0-2r, [%3-5r, #%6-10H]"},
|
||
/* format 11 */
|
||
{0x9000, 0xF800, "str\t%8-10r, [sp, #%0-7W]"},
|
||
{0x9800, 0xF800, "ldr\t%8-10r, [sp, #%0-7W]"},
|
||
/* format 12 */
|
||
{0xA000, 0xF800, "add\t%8-10r, pc, #%0-7W\t(adr %8-10r,%0-7a)"},
|
||
{0xA800, 0xF800, "add\t%8-10r, sp, #%0-7W"},
|
||
/* format 15 */
|
||
{0xC000, 0xF800, "stmia\t%8-10r!,%M"},
|
||
{0xC800, 0xF800, "ldmia\t%8-10r!,%M"},
|
||
/* format 18 */
|
||
{0xE000, 0xF800, "b\t%0-10B"},
|
||
{0xE800, 0xF800, "undefined"},
|
||
/* format 19 */
|
||
{0xF000, 0xF800, ""}, /* special processing required in disassembler */
|
||
{0xF800, 0xF800, "second half of BL instruction %0-15x"},
|
||
/* format 16 */
|
||
{0xD000, 0xFF00, "beq\t%0-7B"},
|
||
{0xD100, 0xFF00, "bne\t%0-7B"},
|
||
{0xD200, 0xFF00, "bcs\t%0-7B"},
|
||
{0xD300, 0xFF00, "bcc\t%0-7B"},
|
||
{0xD400, 0xFF00, "bmi\t%0-7B"},
|
||
{0xD500, 0xFF00, "bpl\t%0-7B"},
|
||
{0xD600, 0xFF00, "bvs\t%0-7B"},
|
||
{0xD700, 0xFF00, "bvc\t%0-7B"},
|
||
{0xD800, 0xFF00, "bhi\t%0-7B"},
|
||
{0xD900, 0xFF00, "bls\t%0-7B"},
|
||
{0xDA00, 0xFF00, "bge\t%0-7B"},
|
||
{0xDB00, 0xFF00, "blt\t%0-7B"},
|
||
{0xDC00, 0xFF00, "bgt\t%0-7B"},
|
||
{0xDD00, 0xFF00, "ble\t%0-7B"},
|
||
/* format 17 */
|
||
{0xDE00, 0xFF00, "bal\t%0-7B"},
|
||
{0xDF00, 0xFF00, "swi\t%0-7d"},
|
||
/* format 9 */
|
||
{0x6000, 0xF800, "str\t%0-2r, [%3-5r, #%6-10W]"},
|
||
{0x6800, 0xF800, "ldr\t%0-2r, [%3-5r, #%6-10W]"},
|
||
{0x7000, 0xF800, "strb\t%0-2r, [%3-5r, #%6-10d]"},
|
||
{0x7800, 0xF800, "ldrb\t%0-2r, [%3-5r, #%6-10d]"},
|
||
/* the rest */
|
||
{0x0000, 0x0000, "undefined instruction %0-15x"},
|
||
{0x0000, 0x0000, 0}
|
||
};
|
||
|
||
#define BDISP23(x) ((((((x) & 0x07ff) << 11) | (((x) & 0x07ff0000) >> 16)) \
|
||
^ 0x200000) - 0x200000) /* 23bit */
|
||
|
||
#ifndef streq
|
||
#define streq(a,b) (strcmp ((a), (b)) == 0)
|
||
#endif
|
||
|
||
#ifndef strneq
|
||
#define strneq(a,b,n) (strncmp ((a), (b), (n)) == 0)
|
||
#endif
|
||
|
||
#ifndef NUM_ELEM
|
||
#define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0])
|
||
#endif
|
||
|
||
static char * arm_conditional[] =
|
||
{"eq", "ne", "cs", "cc", "mi", "pl", "vs", "vc",
|
||
"hi", "ls", "ge", "lt", "gt", "le", "", "nv"};
|
||
|
||
typedef struct
|
||
{
|
||
const char * name;
|
||
const char * description;
|
||
const char * reg_names[16];
|
||
}
|
||
arm_regname;
|
||
|
||
static arm_regname regnames[] =
|
||
{
|
||
{ "raw" , "Select raw register names",
|
||
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"}},
|
||
{ "gcc", "Select register names used by GCC",
|
||
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "sl", "fp", "ip", "sp", "lr", "pc" }},
|
||
{ "std", "Select register names used in ARM's ISA documentation",
|
||
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc" }},
|
||
{ "apcs", "Select register names used in the APCS",
|
||
{ "a1", "a2", "a3", "a4", "v1", "v2", "v3", "v4", "v5", "v6", "sl", "fp", "ip", "sp", "lr", "pc" }},
|
||
{ "atpcs", "Select register names used in the ATPCS",
|
||
{ "a1", "a2", "a3", "a4", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "IP", "SP", "LR", "PC" }},
|
||
{ "special-atpcs", "Select special register names used in the ATPCS",
|
||
{ "a1", "a2", "a3", "a4", "v1", "v2", "v3", "WR", "v5", "SB", "SL", "FP", "IP", "SP", "LR", "PC" }}
|
||
};
|
||
|
||
/* Default to STD register name set. */
|
||
static unsigned int regname_selected = 2;
|
||
|
||
#define NUM_ARM_REGNAMES NUM_ELEM (regnames)
|
||
#define arm_regnames regnames[regname_selected].reg_names
|
||
|
||
static boolean force_thumb = false;
|
||
|
||
static char * arm_fp_const[] =
|
||
{"0.0", "1.0", "2.0", "3.0", "4.0", "5.0", "0.5", "10.0"};
|
||
|
||
static char * arm_shift[] =
|
||
{"lsl", "lsr", "asr", "ror"};
|
||
|
||
/* Forward declarations. */
|
||
static void arm_decode_shift PARAMS ((long, fprintf_ftype, void *));
|
||
static int print_insn_arm1 PARAMS ((bfd_vma, struct disassemble_info *, long));
|
||
static int print_insn_thumb PARAMS ((bfd_vma, struct disassemble_info *, long));
|
||
static void parse_disassembler_options PARAMS ((char *));
|
||
int get_arm_regname_num_options (void);
|
||
int set_arm_regname_option (int option);
|
||
int get_arm_regnames (int option, const char **setname,
|
||
const char **setdescription,
|
||
const char ***register_names);
|
||
|
||
/* Functions. */
|
||
int
|
||
get_arm_regname_num_options ()
|
||
{
|
||
return NUM_ARM_REGNAMES;
|
||
}
|
||
|
||
int
|
||
set_arm_regname_option (option)
|
||
int option;
|
||
{
|
||
int old = regname_selected;
|
||
regname_selected = option;
|
||
return old;
|
||
}
|
||
|
||
int
|
||
get_arm_regnames (option, setname, setdescription, register_names)
|
||
int option;
|
||
const char **setname;
|
||
const char **setdescription;
|
||
const char ***register_names;
|
||
{
|
||
*setname = regnames[option].name;
|
||
*setdescription = regnames[option].description;
|
||
*register_names = regnames[option].reg_names;
|
||
return 16;
|
||
}
|
||
|
||
static void
|
||
arm_decode_shift (given, func, stream)
|
||
long given;
|
||
fprintf_ftype func;
|
||
void * stream;
|
||
{
|
||
func (stream, "%s", arm_regnames[given & 0xf]);
|
||
|
||
if ((given & 0xff0) != 0)
|
||
{
|
||
if ((given & 0x10) == 0)
|
||
{
|
||
int amount = (given & 0xf80) >> 7;
|
||
int shift = (given & 0x60) >> 5;
|
||
|
||
if (amount == 0)
|
||
{
|
||
if (shift == 3)
|
||
{
|
||
func (stream, ", rrx");
|
||
return;
|
||
}
|
||
|
||
amount = 32;
|
||
}
|
||
|
||
func (stream, ", %s #%d", arm_shift[shift], amount);
|
||
}
|
||
else
|
||
func (stream, ", %s %s", arm_shift[(given & 0x60) >> 5],
|
||
arm_regnames[(given & 0xf00) >> 8]);
|
||
}
|
||
}
|
||
|
||
/* Print one instruction from PC on INFO->STREAM.
|
||
Return the size of the instruction (always 4 on ARM). */
|
||
|
||
static int
|
||
print_insn_arm1 (pc, info, given)
|
||
bfd_vma pc;
|
||
struct disassemble_info * info;
|
||
long given;
|
||
{
|
||
struct arm_opcode * insn;
|
||
void * stream = info->stream;
|
||
fprintf_ftype func = info->fprintf_func;
|
||
|
||
for (insn = arm_opcodes; insn->assembler; insn++)
|
||
{
|
||
if ((given & insn->mask) == insn->value)
|
||
{
|
||
char * c;
|
||
|
||
for (c = insn->assembler; *c; c++)
|
||
{
|
||
if (*c == '%')
|
||
{
|
||
switch (*++c)
|
||
{
|
||
case '%':
|
||
func (stream, "%%");
|
||
break;
|
||
|
||
case 'a':
|
||
if (((given & 0x000f0000) == 0x000f0000)
|
||
&& ((given & 0x02000000) == 0))
|
||
{
|
||
int offset = given & 0xfff;
|
||
|
||
func (stream, "[pc");
|
||
|
||
if (given & 0x01000000)
|
||
{
|
||
if ((given & 0x00800000) == 0)
|
||
offset = - offset;
|
||
|
||
/* Pre-indexed. */
|
||
func (stream, ", #%d]", offset);
|
||
|
||
offset += pc + 8;
|
||
|
||
/* Cope with the possibility of write-back
|
||
being used. Probably a very dangerous thing
|
||
for the programmer to do, but who are we to
|
||
argue ? */
|
||
if (given & 0x00200000)
|
||
func (stream, "!");
|
||
}
|
||
else
|
||
{
|
||
/* Post indexed. */
|
||
func (stream, "], #%d", offset);
|
||
|
||
/* ie ignore the offset. */
|
||
offset = pc + 8;
|
||
}
|
||
|
||
func (stream, "\t; ");
|
||
info->print_address_func (offset, info);
|
||
}
|
||
else
|
||
{
|
||
func (stream, "[%s",
|
||
arm_regnames[(given >> 16) & 0xf]);
|
||
if ((given & 0x01000000) != 0)
|
||
{
|
||
if ((given & 0x02000000) == 0)
|
||
{
|
||
int offset = given & 0xfff;
|
||
if (offset)
|
||
func (stream, ", %s#%d",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""), offset);
|
||
}
|
||
else
|
||
{
|
||
func (stream, ", %s",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""));
|
||
arm_decode_shift (given, func, stream);
|
||
}
|
||
|
||
func (stream, "]%s",
|
||
((given & 0x00200000) != 0) ? "!" : "");
|
||
}
|
||
else
|
||
{
|
||
if ((given & 0x02000000) == 0)
|
||
{
|
||
int offset = given & 0xfff;
|
||
if (offset)
|
||
func (stream, "], %s#%d",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""), offset);
|
||
else
|
||
func (stream, "]");
|
||
}
|
||
else
|
||
{
|
||
func (stream, "], %s",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""));
|
||
arm_decode_shift (given, func, stream);
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 's':
|
||
if ((given & 0x004f0000) == 0x004f0000)
|
||
{
|
||
/* PC relative with immediate offset. */
|
||
int offset = ((given & 0xf00) >> 4) | (given & 0xf);
|
||
|
||
if ((given & 0x00800000) == 0)
|
||
offset = -offset;
|
||
|
||
func (stream, "[pc, #%d]\t; ", offset);
|
||
|
||
(*info->print_address_func)
|
||
(offset + pc + 8, info);
|
||
}
|
||
else
|
||
{
|
||
func (stream, "[%s",
|
||
arm_regnames[(given >> 16) & 0xf]);
|
||
if ((given & 0x01000000) != 0)
|
||
{
|
||
/* Pre-indexed. */
|
||
if ((given & 0x00400000) == 0x00400000)
|
||
{
|
||
/* Immediate. */
|
||
int offset = ((given & 0xf00) >> 4) | (given & 0xf);
|
||
if (offset)
|
||
func (stream, ", %s#%d",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""), offset);
|
||
}
|
||
else
|
||
{
|
||
/* Register. */
|
||
func (stream, ", %s%s",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""),
|
||
arm_regnames[given & 0xf]);
|
||
}
|
||
|
||
func (stream, "]%s",
|
||
((given & 0x00200000) != 0) ? "!" : "");
|
||
}
|
||
else
|
||
{
|
||
/* Post-indexed. */
|
||
if ((given & 0x00400000) == 0x00400000)
|
||
{
|
||
/* Immediate. */
|
||
int offset = ((given & 0xf00) >> 4) | (given & 0xf);
|
||
if (offset)
|
||
func (stream, "], %s#%d",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""), offset);
|
||
else
|
||
func (stream, "]");
|
||
}
|
||
else
|
||
{
|
||
/* Register. */
|
||
func (stream, "], %s%s",
|
||
(((given & 0x00800000) == 0)
|
||
? "-" : ""),
|
||
arm_regnames[given & 0xf]);
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
|
||
case 'b':
|
||
(*info->print_address_func)
|
||
(BDISP (given) * 4 + pc + 8, info);
|
||
break;
|
||
|
||
case 'c':
|
||
func (stream, "%s",
|
||
arm_conditional [(given >> 28) & 0xf]);
|
||
break;
|
||
|
||
case 'm':
|
||
{
|
||
int started = 0;
|
||
int reg;
|
||
|
||
func (stream, "{");
|
||
for (reg = 0; reg < 16; reg++)
|
||
if ((given & (1 << reg)) != 0)
|
||
{
|
||
if (started)
|
||
func (stream, ", ");
|
||
started = 1;
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
}
|
||
func (stream, "}");
|
||
}
|
||
break;
|
||
|
||
case 'o':
|
||
if ((given & 0x02000000) != 0)
|
||
{
|
||
int rotate = (given & 0xf00) >> 7;
|
||
int immed = (given & 0xff);
|
||
immed = (((immed << (32 - rotate))
|
||
| (immed >> rotate)) & 0xffffffff);
|
||
func (stream, "#%d\t; 0x%x", immed, immed);
|
||
}
|
||
else
|
||
arm_decode_shift (given, func, stream);
|
||
break;
|
||
|
||
case 'p':
|
||
if ((given & 0x0000f000) == 0x0000f000)
|
||
func (stream, "p");
|
||
break;
|
||
|
||
case 't':
|
||
if ((given & 0x01200000) == 0x00200000)
|
||
func (stream, "t");
|
||
break;
|
||
|
||
case 'A':
|
||
func (stream, "[%s", arm_regnames [(given >> 16) & 0xf]);
|
||
if ((given & 0x01000000) != 0)
|
||
{
|
||
int offset = given & 0xff;
|
||
if (offset)
|
||
func (stream, ", %s#%d]%s",
|
||
((given & 0x00800000) == 0 ? "-" : ""),
|
||
offset * 4,
|
||
((given & 0x00200000) != 0 ? "!" : ""));
|
||
else
|
||
func (stream, "]");
|
||
}
|
||
else
|
||
{
|
||
int offset = given & 0xff;
|
||
if (offset)
|
||
func (stream, "], %s#%d",
|
||
((given & 0x00800000) == 0 ? "-" : ""),
|
||
offset * 4);
|
||
else
|
||
func (stream, "]");
|
||
}
|
||
break;
|
||
|
||
case 'B':
|
||
/* Print ARM V5 BLX(1) address: pc+25 bits. */
|
||
{
|
||
bfd_vma address;
|
||
bfd_vma offset = 0;
|
||
|
||
if (given & 0x00800000)
|
||
/* Is signed, hi bits should be ones. */
|
||
offset = (-1) ^ 0x00ffffff;
|
||
|
||
/* Offset is (SignExtend(offset field)<<2). */
|
||
offset += given & 0x00ffffff;
|
||
offset <<= 2;
|
||
address = offset + pc + 8;
|
||
|
||
if (given & 0x01000000)
|
||
/* H bit allows addressing to 2-byte boundaries. */
|
||
address += 2;
|
||
|
||
info->print_address_func (address, info);
|
||
}
|
||
break;
|
||
|
||
case 'I':
|
||
/* Print a Cirrus/DSP shift immediate. */
|
||
/* Immediates are 7bit signed ints with bits 0..3 in
|
||
bits 0..3 of opcode and bits 4..6 in bits 5..7
|
||
of opcode. */
|
||
{
|
||
int imm;
|
||
|
||
imm = (given & 0xf) | ((given & 0xe0) >> 1);
|
||
|
||
/* Is ``imm'' a negative number? */
|
||
if (imm & 0x40)
|
||
imm |= (-1 << 7);
|
||
|
||
func (stream, "%d", imm);
|
||
}
|
||
|
||
break;
|
||
|
||
case 'C':
|
||
func (stream, "_");
|
||
if (given & 0x80000)
|
||
func (stream, "f");
|
||
if (given & 0x40000)
|
||
func (stream, "s");
|
||
if (given & 0x20000)
|
||
func (stream, "x");
|
||
if (given & 0x10000)
|
||
func (stream, "c");
|
||
break;
|
||
|
||
case 'F':
|
||
switch (given & 0x00408000)
|
||
{
|
||
case 0:
|
||
func (stream, "4");
|
||
break;
|
||
case 0x8000:
|
||
func (stream, "1");
|
||
break;
|
||
case 0x00400000:
|
||
func (stream, "2");
|
||
break;
|
||
default:
|
||
func (stream, "3");
|
||
}
|
||
break;
|
||
|
||
case 'P':
|
||
switch (given & 0x00080080)
|
||
{
|
||
case 0:
|
||
func (stream, "s");
|
||
break;
|
||
case 0x80:
|
||
func (stream, "d");
|
||
break;
|
||
case 0x00080000:
|
||
func (stream, "e");
|
||
break;
|
||
default:
|
||
func (stream, _("<illegal precision>"));
|
||
break;
|
||
}
|
||
break;
|
||
case 'Q':
|
||
switch (given & 0x00408000)
|
||
{
|
||
case 0:
|
||
func (stream, "s");
|
||
break;
|
||
case 0x8000:
|
||
func (stream, "d");
|
||
break;
|
||
case 0x00400000:
|
||
func (stream, "e");
|
||
break;
|
||
default:
|
||
func (stream, "p");
|
||
break;
|
||
}
|
||
break;
|
||
case 'R':
|
||
switch (given & 0x60)
|
||
{
|
||
case 0:
|
||
break;
|
||
case 0x20:
|
||
func (stream, "p");
|
||
break;
|
||
case 0x40:
|
||
func (stream, "m");
|
||
break;
|
||
default:
|
||
func (stream, "z");
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case '0': case '1': case '2': case '3': case '4':
|
||
case '5': case '6': case '7': case '8': case '9':
|
||
{
|
||
int bitstart = *c++ - '0';
|
||
int bitend = 0;
|
||
while (*c >= '0' && *c <= '9')
|
||
bitstart = (bitstart * 10) + *c++ - '0';
|
||
|
||
switch (*c)
|
||
{
|
||
case '-':
|
||
c++;
|
||
|
||
while (*c >= '0' && *c <= '9')
|
||
bitend = (bitend * 10) + *c++ - '0';
|
||
|
||
if (!bitend)
|
||
abort ();
|
||
|
||
switch (*c)
|
||
{
|
||
case 'r':
|
||
{
|
||
long reg;
|
||
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
}
|
||
break;
|
||
case 'd':
|
||
{
|
||
long reg;
|
||
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
|
||
func (stream, "%d", reg);
|
||
}
|
||
break;
|
||
case 'x':
|
||
{
|
||
long reg;
|
||
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
|
||
func (stream, "0x%08x", reg);
|
||
|
||
/* Some SWI instructions have special
|
||
meanings. */
|
||
if ((given & 0x0fffffff) == 0x0FF00000)
|
||
func (stream, "\t; IMB");
|
||
else if ((given & 0x0fffffff) == 0x0FF00001)
|
||
func (stream, "\t; IMBRange");
|
||
}
|
||
break;
|
||
case 'X':
|
||
{
|
||
long reg;
|
||
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
|
||
func (stream, "%01x", reg & 0xf);
|
||
}
|
||
break;
|
||
case 'f':
|
||
{
|
||
long reg;
|
||
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
|
||
if (reg > 7)
|
||
func (stream, "#%s",
|
||
arm_fp_const[reg & 7]);
|
||
else
|
||
func (stream, "f%d", reg);
|
||
}
|
||
break;
|
||
default:
|
||
abort ();
|
||
}
|
||
break;
|
||
|
||
case 'y':
|
||
case 'z':
|
||
{
|
||
int single = *c == 'y';
|
||
int regno;
|
||
|
||
switch (bitstart)
|
||
{
|
||
case 4: /* Sm pair */
|
||
func (stream, "{");
|
||
/* Fall through. */
|
||
case 0: /* Sm, Dm */
|
||
regno = given & 0x0000000f;
|
||
if (single)
|
||
{
|
||
regno <<= 1;
|
||
regno += (given >> 5) & 1;
|
||
}
|
||
break;
|
||
|
||
case 1: /* Sd, Dd */
|
||
regno = (given >> 12) & 0x0000000f;
|
||
if (single)
|
||
{
|
||
regno <<= 1;
|
||
regno += (given >> 22) & 1;
|
||
}
|
||
break;
|
||
|
||
case 2: /* Sn, Dn */
|
||
regno = (given >> 16) & 0x0000000f;
|
||
if (single)
|
||
{
|
||
regno <<= 1;
|
||
regno += (given >> 7) & 1;
|
||
}
|
||
break;
|
||
|
||
case 3: /* List */
|
||
func (stream, "{");
|
||
regno = (given >> 12) & 0x0000000f;
|
||
if (single)
|
||
{
|
||
regno <<= 1;
|
||
regno += (given >> 22) & 1;
|
||
}
|
||
break;
|
||
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
|
||
func (stream, "%c%d", single ? 's' : 'd', regno);
|
||
|
||
if (bitstart == 3)
|
||
{
|
||
int count = given & 0xff;
|
||
|
||
if (single == 0)
|
||
count >>= 1;
|
||
|
||
if (--count)
|
||
{
|
||
func (stream, "-%c%d",
|
||
single ? 's' : 'd',
|
||
regno + count);
|
||
}
|
||
|
||
func (stream, "}");
|
||
}
|
||
else if (bitstart == 4)
|
||
func (stream, ", %c%d}", single ? 's' : 'd',
|
||
regno + 1);
|
||
|
||
break;
|
||
}
|
||
|
||
case '`':
|
||
c++;
|
||
if ((given & (1 << bitstart)) == 0)
|
||
func (stream, "%c", *c);
|
||
break;
|
||
case '\'':
|
||
c++;
|
||
if ((given & (1 << bitstart)) != 0)
|
||
func (stream, "%c", *c);
|
||
break;
|
||
case '?':
|
||
++c;
|
||
if ((given & (1 << bitstart)) != 0)
|
||
func (stream, "%c", *c++);
|
||
else
|
||
func (stream, "%c", *++c);
|
||
break;
|
||
default:
|
||
abort ();
|
||
}
|
||
break;
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
}
|
||
}
|
||
else
|
||
func (stream, "%c", *c);
|
||
}
|
||
return 4;
|
||
}
|
||
}
|
||
abort ();
|
||
}
|
||
|
||
/* Print one instruction from PC on INFO->STREAM.
|
||
Return the size of the instruction. */
|
||
|
||
static int
|
||
print_insn_thumb (pc, info, given)
|
||
bfd_vma pc;
|
||
struct disassemble_info * info;
|
||
long given;
|
||
{
|
||
struct thumb_opcode * insn;
|
||
void * stream = info->stream;
|
||
fprintf_ftype func = info->fprintf_func;
|
||
|
||
for (insn = thumb_opcodes; insn->assembler; insn++)
|
||
{
|
||
if ((given & insn->mask) == insn->value)
|
||
{
|
||
char * c = insn->assembler;
|
||
|
||
/* Special processing for Thumb 2 instruction BL sequence: */
|
||
if (!*c) /* Check for empty (not NULL) assembler string. */
|
||
{
|
||
long offset;
|
||
|
||
info->bytes_per_chunk = 4;
|
||
info->bytes_per_line = 4;
|
||
|
||
offset = BDISP23 (given);
|
||
offset = offset * 2 + pc + 4;
|
||
|
||
if ((given & 0x10000000) == 0)
|
||
{
|
||
func (stream, "blx\t");
|
||
offset &= 0xfffffffc;
|
||
}
|
||
else
|
||
func (stream, "bl\t");
|
||
|
||
info->print_address_func (offset, info);
|
||
return 4;
|
||
}
|
||
else
|
||
{
|
||
info->bytes_per_chunk = 2;
|
||
info->bytes_per_line = 4;
|
||
|
||
given &= 0xffff;
|
||
|
||
for (; *c; c++)
|
||
{
|
||
if (*c == '%')
|
||
{
|
||
int domaskpc = 0;
|
||
int domasklr = 0;
|
||
|
||
switch (*++c)
|
||
{
|
||
case '%':
|
||
func (stream, "%%");
|
||
break;
|
||
|
||
case 'S':
|
||
{
|
||
long reg;
|
||
|
||
reg = (given >> 3) & 0x7;
|
||
if (given & (1 << 6))
|
||
reg += 8;
|
||
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
}
|
||
break;
|
||
|
||
case 'D':
|
||
{
|
||
long reg;
|
||
|
||
reg = given & 0x7;
|
||
if (given & (1 << 7))
|
||
reg += 8;
|
||
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
}
|
||
break;
|
||
|
||
case 'T':
|
||
func (stream, "%s",
|
||
arm_conditional [(given >> 8) & 0xf]);
|
||
break;
|
||
|
||
case 'N':
|
||
if (given & (1 << 8))
|
||
domasklr = 1;
|
||
/* Fall through. */
|
||
case 'O':
|
||
if (*c == 'O' && (given & (1 << 8)))
|
||
domaskpc = 1;
|
||
/* Fall through. */
|
||
case 'M':
|
||
{
|
||
int started = 0;
|
||
int reg;
|
||
|
||
func (stream, "{");
|
||
|
||
/* It would be nice if we could spot
|
||
ranges, and generate the rS-rE format: */
|
||
for (reg = 0; (reg < 8); reg++)
|
||
if ((given & (1 << reg)) != 0)
|
||
{
|
||
if (started)
|
||
func (stream, ", ");
|
||
started = 1;
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
}
|
||
|
||
if (domasklr)
|
||
{
|
||
if (started)
|
||
func (stream, ", ");
|
||
started = 1;
|
||
func (stream, arm_regnames[14] /* "lr" */);
|
||
}
|
||
|
||
if (domaskpc)
|
||
{
|
||
if (started)
|
||
func (stream, ", ");
|
||
func (stream, arm_regnames[15] /* "pc" */);
|
||
}
|
||
|
||
func (stream, "}");
|
||
}
|
||
break;
|
||
|
||
|
||
case '0': case '1': case '2': case '3': case '4':
|
||
case '5': case '6': case '7': case '8': case '9':
|
||
{
|
||
int bitstart = *c++ - '0';
|
||
int bitend = 0;
|
||
|
||
while (*c >= '0' && *c <= '9')
|
||
bitstart = (bitstart * 10) + *c++ - '0';
|
||
|
||
switch (*c)
|
||
{
|
||
case '-':
|
||
{
|
||
long reg;
|
||
|
||
c++;
|
||
while (*c >= '0' && *c <= '9')
|
||
bitend = (bitend * 10) + *c++ - '0';
|
||
if (!bitend)
|
||
abort ();
|
||
reg = given >> bitstart;
|
||
reg &= (2 << (bitend - bitstart)) - 1;
|
||
switch (*c)
|
||
{
|
||
case 'r':
|
||
func (stream, "%s", arm_regnames[reg]);
|
||
break;
|
||
|
||
case 'd':
|
||
func (stream, "%d", reg);
|
||
break;
|
||
|
||
case 'H':
|
||
func (stream, "%d", reg << 1);
|
||
break;
|
||
|
||
case 'W':
|
||
func (stream, "%d", reg << 2);
|
||
break;
|
||
|
||
case 'a':
|
||
/* PC-relative address -- the bottom two
|
||
bits of the address are dropped
|
||
before the calculation. */
|
||
info->print_address_func
|
||
(((pc + 4) & ~3) + (reg << 2), info);
|
||
break;
|
||
|
||
case 'x':
|
||
func (stream, "0x%04x", reg);
|
||
break;
|
||
|
||
case 'I':
|
||
reg = ((reg ^ (1 << bitend)) - (1 << bitend));
|
||
func (stream, "%d", reg);
|
||
break;
|
||
|
||
case 'B':
|
||
reg = ((reg ^ (1 << bitend)) - (1 << bitend));
|
||
(*info->print_address_func)
|
||
(reg * 2 + pc + 4, info);
|
||
break;
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
}
|
||
break;
|
||
|
||
case '\'':
|
||
c++;
|
||
if ((given & (1 << bitstart)) != 0)
|
||
func (stream, "%c", *c);
|
||
break;
|
||
|
||
case '?':
|
||
++c;
|
||
if ((given & (1 << bitstart)) != 0)
|
||
func (stream, "%c", *c++);
|
||
else
|
||
func (stream, "%c", *++c);
|
||
break;
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
}
|
||
break;
|
||
|
||
default:
|
||
abort ();
|
||
}
|
||
}
|
||
else
|
||
func (stream, "%c", *c);
|
||
}
|
||
}
|
||
return 2;
|
||
}
|
||
}
|
||
|
||
/* No match. */
|
||
abort ();
|
||
}
|
||
|
||
/* Parse an individual disassembler option. */
|
||
|
||
void
|
||
parse_arm_disassembler_option (option)
|
||
char * option;
|
||
{
|
||
if (option == NULL)
|
||
return;
|
||
|
||
if (strneq (option, "reg-names-", 10))
|
||
{
|
||
int i;
|
||
|
||
option += 10;
|
||
|
||
for (i = NUM_ARM_REGNAMES; i--;)
|
||
if (streq (option, regnames[i].name))
|
||
{
|
||
regname_selected = i;
|
||
break;
|
||
}
|
||
|
||
if (i < 0)
|
||
fprintf (stderr, _("Unrecognised register name set: %s\n"), option);
|
||
}
|
||
else if (streq (option, "force-thumb"))
|
||
force_thumb = 1;
|
||
else if (streq (option, "no-force-thumb"))
|
||
force_thumb = 0;
|
||
else
|
||
fprintf (stderr, _("Unrecognised disassembler option: %s\n"), option);
|
||
|
||
return;
|
||
}
|
||
|
||
/* Parse the string of disassembler options, spliting it at whitespaces. */
|
||
|
||
static void
|
||
parse_disassembler_options (options)
|
||
char * options;
|
||
{
|
||
char * space;
|
||
|
||
if (options == NULL)
|
||
return;
|
||
|
||
do
|
||
{
|
||
space = strchr (options, ' ');
|
||
|
||
if (space)
|
||
{
|
||
* space = '\0';
|
||
parse_arm_disassembler_option (options);
|
||
* space = ' ';
|
||
options = space + 1;
|
||
}
|
||
else
|
||
parse_arm_disassembler_option (options);
|
||
}
|
||
while (space);
|
||
}
|
||
|
||
/* NOTE: There are no checks in these routines that
|
||
the relevant number of data bytes exist. */
|
||
|
||
int
|
||
print_insn_arm (pc, info)
|
||
bfd_vma pc;
|
||
struct disassemble_info * info;
|
||
{
|
||
unsigned char b[4];
|
||
long given;
|
||
int status;
|
||
int is_thumb;
|
||
int little;
|
||
|
||
if (info->disassembler_options)
|
||
{
|
||
parse_disassembler_options (info->disassembler_options);
|
||
|
||
/* To avoid repeated parsing of these options, we remove them here. */
|
||
info->disassembler_options = NULL;
|
||
}
|
||
|
||
is_thumb = force_thumb;
|
||
if (pc & 1)
|
||
{
|
||
is_thumb = 1;
|
||
pc &= ~(bfd_vma) 1;
|
||
}
|
||
|
||
#if 0
|
||
if (!is_thumb && info->symbols != NULL)
|
||
{
|
||
if (bfd_asymbol_flavour (*info->symbols) == bfd_target_coff_flavour)
|
||
{
|
||
coff_symbol_type * cs;
|
||
|
||
cs = coffsymbol (*info->symbols);
|
||
is_thumb = ( cs->native->u.syment.n_sclass == C_THUMBEXT
|
||
|| cs->native->u.syment.n_sclass == C_THUMBSTAT
|
||
|| cs->native->u.syment.n_sclass == C_THUMBLABEL
|
||
|| cs->native->u.syment.n_sclass == C_THUMBEXTFUNC
|
||
|| cs->native->u.syment.n_sclass == C_THUMBSTATFUNC);
|
||
}
|
||
else if (bfd_asymbol_flavour (*info->symbols) == bfd_target_elf_flavour)
|
||
{
|
||
elf_symbol_type * es;
|
||
unsigned int type;
|
||
|
||
es = *(elf_symbol_type **)(info->symbols);
|
||
type = ELF_ST_TYPE (es->internal_elf_sym.st_info);
|
||
|
||
is_thumb = (type == STT_ARM_TFUNC) || (type == STT_ARM_16BIT);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
little = (info->endian == BFD_ENDIAN_LITTLE);
|
||
info->bytes_per_chunk = 4;
|
||
info->display_endian = little ? BFD_ENDIAN_LITTLE : BFD_ENDIAN_BIG;
|
||
|
||
if (little)
|
||
{
|
||
status = info->read_memory_func (pc, (bfd_byte *) &b[0], 4, info);
|
||
if (status != 0 && is_thumb)
|
||
{
|
||
info->bytes_per_chunk = 2;
|
||
|
||
status = info->read_memory_func (pc, (bfd_byte *) b, 2, info);
|
||
b[3] = b[2] = 0;
|
||
}
|
||
|
||
if (status != 0)
|
||
{
|
||
info->memory_error_func (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
given = (b[0]) | (b[1] << 8) | (b[2] << 16) | (b[3] << 24);
|
||
}
|
||
else
|
||
{
|
||
status = info->read_memory_func
|
||
(pc & ~ 0x3, (bfd_byte *) &b[0], 4, info);
|
||
if (status != 0)
|
||
{
|
||
info->memory_error_func (status, pc, info);
|
||
return -1;
|
||
}
|
||
|
||
if (is_thumb)
|
||
{
|
||
if (pc & 0x2)
|
||
{
|
||
given = (b[2] << 8) | b[3];
|
||
|
||
status = info->read_memory_func
|
||
((pc + 4) & ~ 0x3, (bfd_byte *) b, 4, info);
|
||
if (status != 0)
|
||
{
|
||
info->memory_error_func (status, pc + 4, info);
|
||
return -1;
|
||
}
|
||
|
||
given |= (b[0] << 24) | (b[1] << 16);
|
||
}
|
||
else
|
||
given = (b[0] << 8) | b[1] | (b[2] << 24) | (b[3] << 16);
|
||
}
|
||
else
|
||
given = (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | (b[3]);
|
||
}
|
||
|
||
if (info->flags & INSN_HAS_RELOC)
|
||
/* If the instruction has a reloc associated with it, then
|
||
the offset field in the instruction will actually be the
|
||
addend for the reloc. (We are using REL type relocs).
|
||
In such cases, we can ignore the pc when computing
|
||
addresses, since the addend is not currently pc-relative. */
|
||
pc = 0;
|
||
if (is_thumb)
|
||
status = print_insn_thumb (pc, info, given);
|
||
else
|
||
status = print_insn_arm1 (pc, info, given);
|
||
|
||
return status;
|
||
}
|
||
|
||
void
|
||
print_arm_disassembler_options (FILE * stream)
|
||
{
|
||
int i;
|
||
|
||
fprintf (stream, _("\n\
|
||
The following ARM specific disassembler options are supported for use with\n\
|
||
the -M switch:\n"));
|
||
|
||
for (i = NUM_ARM_REGNAMES; i--;)
|
||
fprintf (stream, " reg-names-%s %*c%s\n",
|
||
regnames[i].name,
|
||
(int)(14 - strlen (regnames[i].name)), ' ',
|
||
regnames[i].description);
|
||
|
||
fprintf (stream, " force-thumb Assume all insns are Thumb insns\n");
|
||
fprintf (stream, " no-force-thumb Examine preceeding label to determine an insn's type\n\n");
|
||
}
|