1999-05-03 07:29:11 +00:00
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/* Opcode table for the ARM.
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Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, 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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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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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1999-11-16 03:37:02 +00:00
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%<bitfield>X print the bitfield as 1 hex digit without leading "0x"
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1999-05-03 07:29:11 +00:00
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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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%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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%h print 'h' iff bit 5 set, else print 'b'
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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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%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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%<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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2000-03-29 18:23:57 +00:00
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static struct arm_opcode arm_opcodes[] =
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{
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1999-05-03 07:29:11 +00:00
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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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{0x00000090, 0x0e100090, "str%c%6's%h\t%12-15r, %s"},
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{0x00100090, 0x0e100090, "ldr%c%6's%h\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, 0x0db6f000, "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 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"},
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{0x0ee08100, 0x0ff08f10, "urd%c%P%R\t%12-14f, %0-3f"},
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{0x0ef08100, 0x0ff08f10, "nrm%c%P%R\t%12-14f, %0-3f"},
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{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"},
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{0x0e300110, 0x0fff0fff, "rfs%c\t%12-15r"},
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{0x0e400110, 0x0fff0fff, "wfc%c\t%12-15r"},
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{0x0e500110, 0x0fff0fff, "rfc%c\t%12-15r"},
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{0x0e90f110, 0x0ff8fff0, "cmf%c\t%16-18f, %0-3f"},
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{0x0eb0f110, 0x0ff8fff0, "cnf%c\t%16-18f, %0-3f"},
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{0x0ed0f110, 0x0ff8fff0, "cmfe%c\t%16-18f, %0-3f"},
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{0x0ef0f110, 0x0ff8fff0, "cnfe%c\t%16-18f, %0-3f"},
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{0x0c000100, 0x0e100f00, "stf%c%Q\t%12-14f, %A"},
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{0x0c100100, 0x0e100f00, "ldf%c%Q\t%12-14f, %A"},
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{0x0c000200, 0x0e100f00, "sfm%c\t%12-14f, %F, %A"},
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{0x0c100200, 0x0e100f00, "lfm%c\t%12-14f, %F, %A"},
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/* Generic coprocessor instructions */
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{0x0e000000, 0x0f000010, "cdp%c\t%8-11d, %20-23d, cr%12-15d, cr%16-19d, cr%0-3d, {%5-7d}"},
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{0x0e100010, 0x0f100010, "mrc%c\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
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{0x0e000010, 0x0f100010, "mcr%c\t%8-11d, %21-23d, %12-15r, cr%16-19d, cr%0-3d, {%5-7d}"},
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{0x0c000000, 0x0e100000, "stc%c%22'l\t%8-11d, cr%12-15d, %A"},
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{0x0c100000, 0x0e100000, "ldc%c%22'l\t%8-11d, cr%12-15d, %A"},
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2000-03-29 18:23:57 +00:00
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/* The rest. */
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1999-05-03 07:29:11 +00:00
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{0x00000000, 0x00000000, "undefined instruction %0-31x"},
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{0x00000000, 0x00000000, 0}
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};
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#define BDISP(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000) /* 26 bit */
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static struct thumb_opcode thumb_opcodes[] =
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{
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/* Thumb instructions */
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{0x46C0, 0xFFFF, "nop\t\t\t(mov r8,r8)"}, /* format 5 instructions do not update the PSR */
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{0x1C00, 0xFFC0, "mov\t%0-2r, %3-5r\t\t(add %0-2r, %3-5r, #%6-8d)"},
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/* format 4 */
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{0x4000, 0xFFC0, "and\t%0-2r, %3-5r"},
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{0x4040, 0xFFC0, "eor\t%0-2r, %3-5r"},
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{0x4080, 0xFFC0, "lsl\t%0-2r, %3-5r"},
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{0x40C0, 0xFFC0, "lsr\t%0-2r, %3-5r"},
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{0x4100, 0xFFC0, "asr\t%0-2r, %3-5r"},
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{0x4140, 0xFFC0, "adc\t%0-2r, %3-5r"},
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{0x4180, 0xFFC0, "sbc\t%0-2r, %3-5r"},
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{0x41C0, 0xFFC0, "ror\t%0-2r, %3-5r"},
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{0x4200, 0xFFC0, "tst\t%0-2r, %3-5r"},
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{0x4240, 0xFFC0, "neg\t%0-2r, %3-5r"},
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{0x4280, 0xFFC0, "cmp\t%0-2r, %3-5r"},
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{0x42C0, 0xFFC0, "cmn\t%0-2r, %3-5r"},
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{0x4300, 0xFFC0, "orr\t%0-2r, %3-5r"},
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{0x4340, 0xFFC0, "mul\t%0-2r, %3-5r"},
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{0x4380, 0xFFC0, "bic\t%0-2r, %3-5r"},
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{0x43C0, 0xFFC0, "mvn\t%0-2r, %3-5r"},
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/* format 13 */
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{0xB000, 0xFF80, "add\tsp, #%0-6W"},
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{0xB080, 0xFF80, "sub\tsp, #%0-6W"},
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/* format 5 */
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{0x4700, 0xFF80, "bx\t%S"},
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{0x4400, 0xFF00, "add\t%D, %S"},
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{0x4500, 0xFF00, "cmp\t%D, %S"},
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{0x4600, 0xFF00, "mov\t%D, %S"},
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/* format 14 */
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{0xB400, 0xFE00, "push\t%N"},
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{0xBC00, 0xFE00, "pop\t%O"},
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/* format 2 */
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{0x1800, 0xFE00, "add\t%0-2r, %3-5r, %6-8r"},
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{0x1A00, 0xFE00, "sub\t%0-2r, %3-5r, %6-8r"},
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{0x1C00, 0xFE00, "add\t%0-2r, %3-5r, #%6-8d"},
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{0x1E00, 0xFE00, "sub\t%0-2r, %3-5r, #%6-8d"},
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/* format 8 */
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{0x5200, 0xFE00, "strh\t%0-2r, [%3-5r, %6-8r]"},
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{0x5A00, 0xFE00, "ldrh\t%0-2r, [%3-5r, %6-8r]"},
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{0x5600, 0xF600, "lds%11?hb\t%0-2r, [%3-5r, %6-8r]"},
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/* format 7 */
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{0x5000, 0xFA00, "str%10'b\t%0-2r, [%3-5r, %6-8r]"},
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{0x5800, 0xFA00, "ldr%10'b\t%0-2r, [%3-5r, %6-8r]"},
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/* format 1 */
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{0x0000, 0xF800, "lsl\t%0-2r, %3-5r, #%6-10d"},
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{0x0800, 0xF800, "lsr\t%0-2r, %3-5r, #%6-10d"},
|
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{0x1000, 0xF800, "asr\t%0-2r, %3-5r, #%6-10d"},
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|
|
/* format 3 */
|
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{0x2000, 0xF800, "mov\t%8-10r, #%0-7d"},
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|
{0x2800, 0xF800, "cmp\t%8-10r, #%0-7d"},
|
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|
|
{0x3000, 0xF800, "add\t%8-10r, #%0-7d"},
|
|
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|
|
{0x3800, 0xF800, "sub\t%8-10r, #%0-7d"},
|
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|
|
/* format 6 */
|
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|
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{0x4800, 0xF800, "ldr\t%8-10r, [pc, #%0-7W]\t(%0-7a)"}, /* TODO: Disassemble PC relative "LDR rD,=<symbolic>" */
|
|
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|
|
/* 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 */
|
2000-03-29 18:23:57 +00:00
|
|
|
{0xDE00, 0xFF00, "bal\t%0-7B"},
|
1999-05-03 07:29:11 +00:00
|
|
|
{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 */
|
|
|
|
|
|
