380 lines
16 KiB
Python
380 lines
16 KiB
Python
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# udis86 - scripts/ud_itab.py
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#
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# Copyright (c) 2009, 2013 Vivek Thampi
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import os
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import sys
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from ud_opcode import UdOpcodeTable, UdOpcodeTables, UdInsnDef
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class UdItabGenerator:
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OperandDict = {
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"Av" : [ "OP_A" , "SZ_V" ],
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"E" : [ "OP_E" , "SZ_NA" ],
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"Eb" : [ "OP_E" , "SZ_B" ],
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"Ew" : [ "OP_E" , "SZ_W" ],
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"Ev" : [ "OP_E" , "SZ_V" ],
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"Ed" : [ "OP_E" , "SZ_D" ],
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"Ey" : [ "OP_E" , "SZ_Y" ],
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"Eq" : [ "OP_E" , "SZ_Q" ],
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"Ez" : [ "OP_E" , "SZ_Z" ],
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"Fv" : [ "OP_F" , "SZ_V" ],
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"G" : [ "OP_G" , "SZ_NA" ],
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"Gb" : [ "OP_G" , "SZ_B" ],
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"Gw" : [ "OP_G" , "SZ_W" ],
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"Gv" : [ "OP_G" , "SZ_V" ],
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"Gy" : [ "OP_G" , "SZ_Y" ],
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"Gd" : [ "OP_G" , "SZ_D" ],
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"Gq" : [ "OP_G" , "SZ_Q" ],
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"Gz" : [ "OP_G" , "SZ_Z" ],
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"M" : [ "OP_M" , "SZ_NA" ],
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"Mb" : [ "OP_M" , "SZ_B" ],
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"Mw" : [ "OP_M" , "SZ_W" ],
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"Ms" : [ "OP_M" , "SZ_W" ],
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"Md" : [ "OP_M" , "SZ_D" ],
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"Mq" : [ "OP_M" , "SZ_Q" ],
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"Mdq" : [ "OP_M" , "SZ_DQ" ],
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"Mv" : [ "OP_M" , "SZ_V" ],
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"Mt" : [ "OP_M" , "SZ_T" ],
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"Mo" : [ "OP_M" , "SZ_O" ],
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"MbRd" : [ "OP_MR" , "SZ_BD" ],
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"MbRv" : [ "OP_MR" , "SZ_BV" ],
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"MwRv" : [ "OP_MR" , "SZ_WV" ],
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"MwRd" : [ "OP_MR" , "SZ_WD" ],
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"MwRy" : [ "OP_MR" , "SZ_WY" ],
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"MdRy" : [ "OP_MR" , "SZ_DY" ],
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"I1" : [ "OP_I1" , "SZ_NA" ],
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"I3" : [ "OP_I3" , "SZ_NA" ],
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"Ib" : [ "OP_I" , "SZ_B" ],
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"Iw" : [ "OP_I" , "SZ_W" ],
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"Iv" : [ "OP_I" , "SZ_V" ],
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"Iz" : [ "OP_I" , "SZ_Z" ],
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"sIb" : [ "OP_sI" , "SZ_B" ],
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"sIz" : [ "OP_sI" , "SZ_Z" ],
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"sIv" : [ "OP_sI" , "SZ_V" ],
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"Jv" : [ "OP_J" , "SZ_V" ],
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"Jz" : [ "OP_J" , "SZ_Z" ],
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"Jb" : [ "OP_J" , "SZ_B" ],
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"R" : [ "OP_R" , "SZ_RDQ" ],
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"C" : [ "OP_C" , "SZ_NA" ],
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"D" : [ "OP_D" , "SZ_NA" ],
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"S" : [ "OP_S" , "SZ_W" ],
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"Ob" : [ "OP_O" , "SZ_B" ],
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"Ow" : [ "OP_O" , "SZ_W" ],
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"Ov" : [ "OP_O" , "SZ_V" ],
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"U" : [ "OP_U" , "SZ_O" ],
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"Ux" : [ "OP_U" , "SZ_X" ],
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"V" : [ "OP_V" , "SZ_DQ" ],
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"Vdq" : [ "OP_V" , "SZ_DQ" ],
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"Vqq" : [ "OP_V" , "SZ_QQ" ],
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"Vsd" : [ "OP_V" , "SZ_Q" ],
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"Vx" : [ "OP_V" , "SZ_X" ],
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"H" : [ "OP_H" , "SZ_X" ],
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"Hx" : [ "OP_H" , "SZ_X" ],
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"Hqq" : [ "OP_H" , "SZ_QQ" ],
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"W" : [ "OP_W" , "SZ_DQ" ],
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"Wdq" : [ "OP_W" , "SZ_DQ" ],
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"Wqq" : [ "OP_W" , "SZ_QQ" ],
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"Wsd" : [ "OP_W" , "SZ_Q" ],
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"Wx" : [ "OP_W" , "SZ_X" ],
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"L" : [ "OP_L" , "SZ_O" ],
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"Lx" : [ "OP_L" , "SZ_X" ],
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"MwU" : [ "OP_MU" , "SZ_WO" ],
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"MdU" : [ "OP_MU" , "SZ_DO" ],
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"MqU" : [ "OP_MU" , "SZ_QO" ],
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"N" : [ "OP_N" , "SZ_Q" ],
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"P" : [ "OP_P" , "SZ_Q" ],
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"Q" : [ "OP_Q" , "SZ_Q" ],
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"AL" : [ "OP_AL" , "SZ_B" ],
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"AX" : [ "OP_AX" , "SZ_W" ],
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"eAX" : [ "OP_eAX" , "SZ_Z" ],
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"rAX" : [ "OP_rAX" , "SZ_V" ],
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"CL" : [ "OP_CL" , "SZ_B" ],
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"CX" : [ "OP_CX" , "SZ_W" ],
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"eCX" : [ "OP_eCX" , "SZ_Z" ],
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"rCX" : [ "OP_rCX" , "SZ_V" ],
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"DL" : [ "OP_DL" , "SZ_B" ],
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"DX" : [ "OP_DX" , "SZ_W" ],
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"eDX" : [ "OP_eDX" , "SZ_Z" ],
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"rDX" : [ "OP_rDX" , "SZ_V" ],
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"R0b" : [ "OP_R0" , "SZ_B" ],
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"R1b" : [ "OP_R1" , "SZ_B" ],
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"R2b" : [ "OP_R2" , "SZ_B" ],
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"R3b" : [ "OP_R3" , "SZ_B" ],
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"R4b" : [ "OP_R4" , "SZ_B" ],
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"R5b" : [ "OP_R5" , "SZ_B" ],
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"R6b" : [ "OP_R6" , "SZ_B" ],
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"R7b" : [ "OP_R7" , "SZ_B" ],
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"R0w" : [ "OP_R0" , "SZ_W" ],
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"R1w" : [ "OP_R1" , "SZ_W" ],
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"R2w" : [ "OP_R2" , "SZ_W" ],
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"R3w" : [ "OP_R3" , "SZ_W" ],
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"R4w" : [ "OP_R4" , "SZ_W" ],
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"R5w" : [ "OP_R5" , "SZ_W" ],
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"R6w" : [ "OP_R6" , "SZ_W" ],
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"R7w" : [ "OP_R7" , "SZ_W" ],
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"R0v" : [ "OP_R0" , "SZ_V" ],
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"R1v" : [ "OP_R1" , "SZ_V" ],
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"R2v" : [ "OP_R2" , "SZ_V" ],
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"R3v" : [ "OP_R3" , "SZ_V" ],
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"R4v" : [ "OP_R4" , "SZ_V" ],
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"R5v" : [ "OP_R5" , "SZ_V" ],
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"R6v" : [ "OP_R6" , "SZ_V" ],
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"R7v" : [ "OP_R7" , "SZ_V" ],
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"R0z" : [ "OP_R0" , "SZ_Z" ],
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"R1z" : [ "OP_R1" , "SZ_Z" ],
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"R2z" : [ "OP_R2" , "SZ_Z" ],
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"R3z" : [ "OP_R3" , "SZ_Z" ],
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"R4z" : [ "OP_R4" , "SZ_Z" ],
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"R5z" : [ "OP_R5" , "SZ_Z" ],
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"R6z" : [ "OP_R6" , "SZ_Z" ],
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"R7z" : [ "OP_R7" , "SZ_Z" ],
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"R0y" : [ "OP_R0" , "SZ_Y" ],
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"R1y" : [ "OP_R1" , "SZ_Y" ],
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"R2y" : [ "OP_R2" , "SZ_Y" ],
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"R3y" : [ "OP_R3" , "SZ_Y" ],
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"R4y" : [ "OP_R4" , "SZ_Y" ],
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"R5y" : [ "OP_R5" , "SZ_Y" ],
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"R6y" : [ "OP_R6" , "SZ_Y" ],
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"R7y" : [ "OP_R7" , "SZ_Y" ],
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"ES" : [ "OP_ES" , "SZ_NA" ],
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"CS" : [ "OP_CS" , "SZ_NA" ],
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"DS" : [ "OP_DS" , "SZ_NA" ],
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"SS" : [ "OP_SS" , "SZ_NA" ],
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"GS" : [ "OP_GS" , "SZ_NA" ],
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"FS" : [ "OP_FS" , "SZ_NA" ],
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"ST0" : [ "OP_ST0" , "SZ_NA" ],
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"ST1" : [ "OP_ST1" , "SZ_NA" ],
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"ST2" : [ "OP_ST2" , "SZ_NA" ],
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"ST3" : [ "OP_ST3" , "SZ_NA" ],
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"ST4" : [ "OP_ST4" , "SZ_NA" ],
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"ST5" : [ "OP_ST5" , "SZ_NA" ],
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"ST6" : [ "OP_ST6" , "SZ_NA" ],
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"ST7" : [ "OP_ST7" , "SZ_NA" ],
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"NONE" : [ "OP_NONE" , "SZ_NA" ],
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}
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#
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# opcode prefix dictionary
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#
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PrefixDict = {
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"rep" : "P_str",
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"repz" : "P_strz",
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"aso" : "P_aso",
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"oso" : "P_oso",
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"rexw" : "P_rexw",
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"rexb" : "P_rexb",
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"rexx" : "P_rexx",
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"rexr" : "P_rexr",
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"vexl" : "P_vexl",
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"vexw" : "P_vexw",
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"seg" : "P_seg",
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"inv64" : "P_inv64",
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"def64" : "P_def64",
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"cast" : "P_cast",
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}
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MnemonicAliases = ( "invalid", "3dnow", "none", "db", "pause" )
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def __init__(self, tables):
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self.tables = tables
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self._insnIndexMap, i = {}, 0
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for insn in tables.getInsnList():
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self._insnIndexMap[insn], i = i, i + 1
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self._tableIndexMap, i = {}, 0
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for table in tables.getTableList():
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self._tableIndexMap[table], i = i, i + 1
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def getInsnIndex(self, insn):
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assert isinstance(insn, UdInsnDef)
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return self._insnIndexMap[insn]
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def getTableIndex(self, table):
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assert isinstance(table, UdOpcodeTable)
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return self._tableIndexMap[table]
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def getTableName(self, table):
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return "ud_itab__%d" % self.getTableIndex(table)
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def genOpcodeTable(self, table, isGlobal=False):
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"""Emit Opcode Table in C.
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"""
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self.ItabC.write( "\n" );
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if not isGlobal:
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self.ItabC.write('static ')
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self.ItabC.write( "const uint16_t %s[] = {\n" % self.getTableName(table))
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for i in range(table.size()):
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if i > 0 and i % 4 == 0:
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self.ItabC.write( "\n" )
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if i % 4 == 0:
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self.ItabC.write( " /* %2x */" % i)
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e = table.entryAt(i)
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if e is None:
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self.ItabC.write("%12s," % "INVALID")
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elif isinstance(e, UdOpcodeTable):
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self.ItabC.write("%12s," % ("GROUP(%d)" % self.getTableIndex(e)))
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elif isinstance(e, UdInsnDef):
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self.ItabC.write("%12s," % self.getInsnIndex(e))
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self.ItabC.write( "\n" )
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self.ItabC.write( "};\n" )
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def genOpcodeTables(self):
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tables = self.tables.getTableList()
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for table in tables:
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self.genOpcodeTable(table, table is self.tables.root)
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def genOpcodeTablesLookupIndex(self):
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self.ItabC.write( "\n\n" );
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self.ItabC.write( "struct ud_lookup_table_list_entry ud_lookup_table_list[] = {\n" )
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for table in self.tables.getTableList():
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f0 = self.getTableName(table) + ","
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f1 = table.label() + ","
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f2 = "\"%s\"" % table.meta()
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self.ItabC.write(" /* %03d */ { %s %s %s },\n" %
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(self.getTableIndex(table), f0, f1, f2))
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self.ItabC.write( "};" )
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def genInsnTable( self ):
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self.ItabC.write( "struct ud_itab_entry ud_itab[] = {\n" );
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for insn in self.tables.getInsnList():
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opr_c = [ "O_NONE", "O_NONE", "O_NONE", "O_NONE" ]
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pfx_c = []
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opr = insn.operands
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for i in range(len(opr)):
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if not (opr[i] in self.OperandDict.keys()):
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print("error: invalid operand declaration: %s\n" % opr[i])
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opr_c[i] = "O_" + opr[i]
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opr = "%s %s %s %s" % (opr_c[0] + ",", opr_c[1] + ",",
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opr_c[2] + ",", opr_c[3])
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for p in insn.prefixes:
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if not ( p in self.PrefixDict.keys() ):
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print("error: invalid prefix specification: %s \n" % pfx)
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pfx_c.append( self.PrefixDict[p] )
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if len(insn.prefixes) == 0:
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pfx_c.append( "P_none" )
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pfx = "|".join( pfx_c )
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self.ItabC.write( " /* %04d */ { UD_I%s %s, %s },\n" \
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% ( self.getInsnIndex(insn), insn.mnemonic + ',', opr, pfx ) )
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self.ItabC.write( "};\n" )
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def getMnemonicsList(self):
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|
|
mnemonics = self.tables.getMnemonicsList()
|
||
|
|
mnemonics.extend(self.MnemonicAliases)
|
||
|
|
return mnemonics
|
||
|
|
|
||
|
|
def genMnemonicsList(self):
|
||
|
|
mnemonics = self.getMnemonicsList()
|
||
|
|
self.ItabC.write( "\n\n" );
|
||
|
|
self.ItabC.write( "const char* ud_mnemonics_str[] = {\n " )
|
||
|
|
self.ItabC.write( ",\n ".join( [ "\"%s\"" % m for m in mnemonics ] ) )
|
||
|
|
self.ItabC.write( "\n};\n" )
|
||
|
|
|
||
|
|
|
||
|
|
def genItabH( self, filePath ):
|
||
|
|
self.ItabH = open( filePath, "w" )
|
||
|
|
|
||
|
|
# Generate Table Type Enumeration
|
||
|
|
self.ItabH.write( "#ifndef UD_ITAB_H\n" )
|
||
|
|
self.ItabH.write( "#define UD_ITAB_H\n\n" )
|
||
|
|
|
||
|
|
self.ItabH.write("/* itab.h -- generated by udis86:scripts/ud_itab.py, do no edit */\n\n")
|
||
|
|
|
||
|
|
# table type enumeration
|
||
|
|
self.ItabH.write( "/* ud_table_type -- lookup table types (see decode.c) */\n" )
|
||
|
|
self.ItabH.write( "enum ud_table_type {\n " )
|
||
|
|
enum = UdOpcodeTable.getLabels()
|
||
|
|
self.ItabH.write( ",\n ".join( enum ) )
|
||
|
|
self.ItabH.write( "\n};\n\n" );
|
||
|
|
|
||
|
|
# mnemonic enumeration
|
||
|
|
self.ItabH.write( "/* ud_mnemonic -- mnemonic constants */\n" )
|
||
|
|
enum = "enum ud_mnemonic_code {\n "
|
||
|
|
enum += ",\n ".join( [ "UD_I%s" % m for m in self.getMnemonicsList() ] )
|
||
|
|
enum += ",\n UD_MAX_MNEMONIC_CODE"
|
||
|
|
enum += "\n};\n"
|
||
|
|
self.ItabH.write( enum )
|
||
|
|
self.ItabH.write( "\n" )
|
||
|
|
|
||
|
|
self.ItabH.write( "extern const char * ud_mnemonics_str[];\n" )
|
||
|
|
|
||
|
|
self.ItabH.write( "\n#endif /* UD_ITAB_H */\n" )
|
||
|
|
|
||
|
|
self.ItabH.close()
|
||
|
|
|
||
|
|
|
||
|
|
def genItabC(self, filePath):
|
||
|
|
self.ItabC = open(filePath, "w")
|
||
|
|
self.ItabC.write("/* itab.c -- generated by udis86:scripts/ud_itab.py, do no edit")
|
||
|
|
self.ItabC.write(" */\n");
|
||
|
|
self.ItabC.write("#include \"decode.h\"\n\n");
|
||
|
|
|
||
|
|
self.ItabC.write("#define GROUP(n) (0x8000 | (n))\n")
|
||
|
|
self.ItabC.write("#define INVALID %d\n\n" % self.getInsnIndex(self.tables.invalidInsn))
|
||
|
|
|
||
|
|
self.genOpcodeTables()
|
||
|
|
self.genOpcodeTablesLookupIndex()
|
||
|
|
|
||
|
|
#
|
||
|
|
# Macros defining short-names for operands
|
||
|
|
#
|
||
|
|
self.ItabC.write("\n\n/* itab entry operand definitions (for readability) */\n");
|
||
|
|
operands = self.OperandDict.keys()
|
||
|
|
operands = sorted(operands)
|
||
|
|
for o in operands:
|
||
|
|
self.ItabC.write("#define O_%-7s { %-12s %-8s }\n" %
|
||
|
|
(o, self.OperandDict[o][0] + ",", self.OperandDict[o][1]));
|
||
|
|
self.ItabC.write("\n");
|
||
|
|
|
||
|
|
self.genInsnTable()
|
||
|
|
self.genMnemonicsList()
|
||
|
|
|
||
|
|
self.ItabC.close()
|
||
|
|
|
||
|
|
def genItab( self, location ):
|
||
|
|
self.genItabC(os.path.join(location, "itab.c"))
|
||
|
|
self.genItabH(os.path.join(location, "itab.h"))
|
||
|
|
|
||
|
|
def usage():
|
||
|
|
print("usage: ud_itab.py <optable.xml> <output-path>")
|
||
|
|
|
||
|
|
def main():
|
||
|
|
|
||
|
|
if len(sys.argv) != 3:
|
||
|
|
usage()
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
tables = UdOpcodeTables(xml=sys.argv[1])
|
||
|
|
itab = UdItabGenerator(tables)
|
||
|
|
itab.genItab(sys.argv[2])
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main()
|