ttProgram.py revision 51e75db43e60555d2c92c015756ebaf74a3a1ebd
1"""ttLib.tables.ttProgram.py -- Assembler/disassembler for TrueType bytecode programs.""" 2 3import array 4import re, string 5from fontTools.misc.textTools import num2binary, binary2num, readHex 6 7# first, the list of instructions that eat bytes or words from the instruction stream 8 9streamInstructions = [ 10# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 11# opcode mnemonic argBits descriptive name pops pushes eats from instruction stream pushes 12# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 13 (0x40, 'NPUSHB', 0, 'PushNBytes', 0, -1), # n, b1, b2,...bn b1,b2...bn 14 (0x41, 'NPUSHW', 0, 'PushNWords', 0, -1), # n, w1, w2,...w w1,w2...wn 15 (0xb0, 'PUSHB', 3, 'PushBytes', 0, -1), # b0, b1,..bn b0, b1, ...,bn 16 (0xb8, 'PUSHW', 3, 'PushWords', 0, -1), # w0,w1,..wn w0 ,w1, ...wn 17# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 18] 19 20 21# next, the list of "normal" instructions 22 23instructions = [ 24# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 25# opcode mnemonic argBits descriptive name pops pushes pops pushes 26# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 27 (0x7f, 'AA', 0, 'AdjustAngle', 1, 0), # p - 28 (0x64, 'ABS', 0, 'Absolute', 1, 1), # n |n| 29 (0x60, 'ADD', 0, 'Add', 2, 1), # n2, n1 (n1 + n2) 30 (0x27, 'ALIGNPTS', 0, 'AlignPts', 2, 0), # p2, p1 - 31 (0x3c, 'ALIGNRP', 0, 'AlignRelativePt', -1, 0), # p1, p2, ... , ploopvalue - 32 (0x5a, 'AND', 0, 'LogicalAnd', 2, 1), # e2, e1 b 33 (0x2b, 'CALL', 0, 'CallFunction', 1, 0), # f - 34 (0x67, 'CEILING', 0, 'Ceiling', 1, 1), # n ceil(n) 35 (0x25, 'CINDEX', 0, 'CopyXToTopStack', 1, 1), # k ek 36 (0x22, 'CLEAR', 0, 'ClearStack', -1, 0), # all items on the stack - 37 (0x4f, 'DEBUG', 0, 'DebugCall', 1, 0), # n - 38 (0x73, 'DELTAC1', 0, 'DeltaExceptionC1', -1, 0), # argn, cn, argn-1,cn-1, , arg1, c1 - 39 (0x74, 'DELTAC2', 0, 'DeltaExceptionC2', -1, 0), # argn, cn, argn-1,cn-1, , arg1, c1 - 40 (0x75, 'DELTAC3', 0, 'DeltaExceptionC3', -1, 0), # argn, cn, argn-1,cn-1, , arg1, c1 - 41 (0x5d, 'DELTAP1', 0, 'DeltaExceptionP1', -1, 0), # argn, pn, argn-1, pn-1, , arg1, p1 - 42 (0x71, 'DELTAP2', 0, 'DeltaExceptionP2', -1, 0), # argn, pn, argn-1, pn-1, , arg1, p1 - 43 (0x72, 'DELTAP3', 0, 'DeltaExceptionP3', -1, 0), # argn, pn, argn-1, pn-1, , arg1, p1 - 44 (0x24, 'DEPTH', 0, 'GetDepthStack', 0, 1), # - n 45 (0x62, 'DIV', 0, 'Divide', 2, 1), # n2, n1 (n1 * 64)/ n2 46 (0x20, 'DUP', 0, 'DuplicateTopStack', 1, 2), # e e, e 47 (0x59, 'EIF', 0, 'EndIf', 0, 0), # - - 48 (0x1b, 'ELSE', 0, 'Else', 0, 0), # - - 49 (0x2d, 'ENDF', 0, 'EndFunctionDefinition', 0, 0), # - - 50 (0x54, 'EQ', 0, 'Equal', 2, 1), # e2, e1 b 51 (0x57, 'EVEN', 0, 'Even', 1, 1), # e b 52 (0x2c, 'FDEF', 0, 'FunctionDefinition', 1, 0), # f - 53 (0x4e, 'FLIPOFF', 0, 'SetAutoFlipOff', 0, 0), # - - 54 (0x4d, 'FLIPON', 0, 'SetAutoFlipOn', 0, 0), # - - 55 (0x80, 'FLIPPT', 0, 'FlipPoint', -1, 0), # p1, p2, ..., ploopvalue - 56 (0x82, 'FLIPRGOFF', 0, 'FlipRangeOff', 2, 0), # h, l - 57 (0x81, 'FLIPRGON', 0, 'FlipRangeOn', 2, 0), # h, l - 58 (0x66, 'FLOOR', 0, 'Floor', 1, 1), # n floor(n) 59 (0x46, 'GC', 1, 'GetCoordOnPVector', 1, 1), # p c 60 (0x88, 'GETINFO', 0, 'GetInfo', 1, 1), # selector result 61 (0x0d, 'GFV', 0, 'GetFVector', 0, 2), # - px, py 62 (0x0c, 'GPV', 0, 'GetPVector', 0, 2), # - px, py 63 (0x52, 'GT', 0, 'GreaterThan', 2, 1), # e2, e1 b 64 (0x53, 'GTEQ', 0, 'GreaterThanOrEqual', 2, 1), # e2, e1 b 65 (0x89, 'IDEF', 0, 'InstructionDefinition', 1, 0), # f - 66 (0x58, 'IF', 0, 'If', 1, 0), # e - 67 (0x8e, 'INSTCTRL', 0, 'SetInstrExecControl', 2, 0), # s, v - 68 (0x39, 'IP', 0, 'InterpolatePts', -1, 0), # p1, p2, ... , ploopvalue - 69 (0x0f, 'ISECT', 0, 'MovePtToIntersect', 5, 0), # a1, a0, b1, b0, p - 70 (0x30, 'IUP', 1, 'InterpolateUntPts', 0, 0), # - - 71 (0x1c, 'JMPR', 0, 'Jump', 1, 0), # offset - 72 (0x79, 'JROF', 0, 'JumpRelativeOnFalse', 2, 0), # e, offset - 73 (0x78, 'JROT', 0, 'JumpRelativeOnTrue', 2, 0), # e, offset - 74 (0x2a, 'LOOPCALL', 0, 'LoopAndCallFunction', 2, 0), # f, count - 75 (0x50, 'LT', 0, 'LessThan', 2, 1), # e2, e1 b 76 (0x51, 'LTEQ', 0, 'LessThenOrEqual', 2, 1), # e2, e1 b 77 (0x8b, 'MAX', 0, 'Maximum', 2, 1), # e2, e1 max(e1, e2) 78 (0x49, 'MD', 1, 'MeasureDistance', 2, 1), # p2,p1 d 79 (0x2e, 'MDAP', 1, 'MoveDirectAbsPt', 1, 0), # p - 80 (0xc0, 'MDRP', 5, 'MoveDirectRelPt', 1, 0), # p - 81 (0x3e, 'MIAP', 1, 'MoveIndirectAbsPt', 2, 0), # n, p - 82 (0x8c, 'MIN', 0, 'Minimum', 2, 1), # e2, e1 min(e1, e2) 83 (0x26, 'MINDEX', 0, 'MoveXToTopStack', 2, 1), # k ek 84 (0xe0, 'MIRP', 5, 'MoveIndirectRelPt', 1, 0), # n, p - 85 (0x4b, 'MPPEM', 0, 'MeasurePixelPerEm', 0, 1), # - ppem 86 (0x4c, 'MPS', 0, 'MeasurePointSize', 0, 1), # - pointSize 87 (0x3a, 'MSIRP', 1, 'MoveStackIndirRelPt', 2, 0), # d, p - 88 (0x63, 'MUL', 0, 'Multiply', 2, 1), # n2, n1 (n1 * n2)/64 89 (0x65, 'NEG', 0, 'Negate', 1, 1), # n -n 90 (0x55, 'NEQ', 0, 'NotEqual', 2, 1), # e2, e1 b 91 (0x5c, 'NOT', 0, 'LogicalNot', 1, 1), # e ( not e ) 92 (0x6c, 'NROUND', 2, 'NoRound', 1, 1), # n1 n2 93 (0x56, 'ODD', 0, 'Odd', 1, 1), # e b 94 (0x5b, 'OR', 0, 'LogicalOr', 2, 1), # e2, e1 b 95 (0x21, 'POP', 0, 'PopTopStack', 1, 0), # e - 96 (0x45, 'RCVT', 0, 'ReadCVT', 1, 1), # location value 97 (0x7d, 'RDTG', 0, 'RoundDownToGrid', 0, 0), # - - 98 (0x7a, 'ROFF', 0, 'RoundOff', 0, 0), # - - 99 (0x8a, 'ROLL', 0, 'RollTopThreeStack', 3, 3), # a,b,c b,a,c 100 (0x68, 'ROUND', 2, 'Round', 1, 1), # n1 n2 101 (0x43, 'RS', 0, 'ReadStore', 1, 1), # n v 102 (0x3d, 'RTDG', 0, 'RoundToDoubleGrid', 0, 0), # - - 103 (0x18, 'RTG', 0, 'RoundToGrid', 0, 0), # - - 104 (0x19, 'RTHG', 0, 'RoundToHalfGrid', 0, 0), # - - 105 (0x7c, 'RUTG', 0, 'RoundUpToGrid', 0, 0), # - - 106 (0x77, 'S45ROUND', 0, 'SuperRound45Degrees', 1, 0), # n - 107 (0x7e, 'SANGW', 0, 'SetAngleWeight', 1, 0), # weight - 108 (0x85, 'SCANCTRL', 0, 'ScanConversionControl', 1, 0), # n - 109 (0x8d, 'SCANTYPE', 0, 'ScanType', 1, 0), # n - 110 (0x48, 'SCFS', 0, 'SetCoordFromStackFP', 2, 0), # c, p - 111 (0x1d, 'SCVTCI', 0, 'SetCVTCutIn', 1, 0), # n - 112 (0x5e, 'SDB', 0, 'SetDeltaBaseInGState', 1, 0), # n - 113 (0x86, 'SDPVTL', 1, 'SetDualPVectorToLine', 2, 0), # p2, p1 - 114 (0x5f, 'SDS', 0, 'SetDeltaShiftInGState', 1, 0), # n - 115 (0x0b, 'SFVFS', 0, 'SetFVectorFromStack', 2, 0), # y, x - 116 (0x04, 'SFVTCA', 1, 'SetFVectorToAxis', 0, 0), # - - 117 (0x08, 'SFVTL', 1, 'SetFVectorToLine', 2, 0), # p2, p1 - 118 (0x0e, 'SFVTPV', 0, 'SetFVectorToPVector', 0, 0), # - - 119 (0x34, 'SHC', 1, 'ShiftContourByLastPt', 1, 0), # c - 120 (0x32, 'SHP', 1, 'ShiftPointByLastPoint', -1, 0), # p1, p2, ..., ploopvalue - 121 (0x38, 'SHPIX', 0, 'ShiftZoneByPixel', -1, 0), # d, p1, p2, ..., ploopvalue - 122 (0x36, 'SHZ', 1, 'ShiftZoneByLastPoint', 1, 0), # e - 123 (0x17, 'SLOOP', 0, 'SetLoopVariable', 1, 0), # n - 124 (0x1a, 'SMD', 0, 'SetMinimumDistance', 1, 0), # distance - 125 (0x0a, 'SPVFS', 0, 'SetPVectorFromStack', 2, 0), # y, x - 126 (0x02, 'SPVTCA', 1, 'SetPVectorToAxis', 0, 0), # - - 127 (0x06, 'SPVTL', 1, 'SetPVectorToLine', 2, 0), # p2, p1 - 128 (0x76, 'SROUND', 0, 'SuperRound', 1, 0), # n - 129 (0x10, 'SRP0', 0, 'SetRefPoint0', 1, 0), # p - 130 (0x11, 'SRP1', 0, 'SetRefPoint1', 1, 0), # p - 131 (0x12, 'SRP2', 0, 'SetRefPoint2', 1, 0), # p - 132 (0x1f, 'SSW', 0, 'SetSingleWidth', 1, 0), # n - 133 (0x1e, 'SSWCI', 0, 'SetSingleWidthCutIn', 1, 0), # n - 134 (0x61, 'SUB', 0, 'Subtract', 2, 1), # n2, n1 (n1 - n2) 135 (0x00, 'SVTCA', 1, 'SetFPVectorToAxis', 0, 0), # - - 136 (0x23, 'SWAP', 0, 'SwapTopStack', 2, 2), # e2, e1 e1, e2 137 (0x13, 'SZP0', 0, 'SetZonePointer0', 1, 0), # n - 138 (0x14, 'SZP1', 0, 'SetZonePointer1', 1, 0), # n - 139 (0x15, 'SZP2', 0, 'SetZonePointer2', 1, 0), # n - 140 (0x16, 'SZPS', 0, 'SetZonePointerS', 1, 0), # n - 141 (0x29, 'UTP', 0, 'UnTouchPt', 1, 0), # p - 142 (0x70, 'WCVTF', 0, 'WriteCVTInFUnits', 2, 0), # n, l - 143 (0x44, 'WCVTP', 0, 'WriteCVTInPixels', 2, 0), # v, l - 144 (0x42, 'WS', 0, 'WriteStore', 2, 0), # v, l - 145# ------ ----------- ----- ------------------------ --- ------ ---------------------------------- -------------- 146] 147 148 149def bitRepr(value, bits): 150 s = "" 151 for i in range(bits): 152 s = "01"[value & 0x1] + s 153 value = value >> 1 154 return s 155 156 157_mnemonicPat = re.compile("[A-Z][A-Z0-9]*$") 158 159def _makeDict(instructionList): 160 opcodeDict = {} 161 mnemonicDict = {} 162 for op, mnemonic, argBits, name, pops, pushes in instructionList: 163 assert _mnemonicPat.match(mnemonic) 164 mnemonicDict[mnemonic] = op, argBits, name 165 if argBits: 166 argoffset = op 167 for i in range(1 << argBits): 168 opcodeDict[op+i] = mnemonic, argBits, argoffset, name 169 else: 170 opcodeDict[op] = mnemonic, 0, 0, name 171 return opcodeDict, mnemonicDict 172 173streamOpcodeDict, streamMnemonicDict = _makeDict(streamInstructions) 174opcodeDict, mnemonicDict = _makeDict(instructions) 175 176tt_instructions_error = "TT instructions error" 177 178 179_comment = r"/\*.*?\*/" 180_instruction = r"([A-Z][A-Z0-9]*)\s*\[(.*?)\]" 181_number = r"-?[0-9]+" 182_token = "(%s)|(%s)|(%s)" % (_instruction, _number, _comment) 183 184_tokenRE = re.compile(_token) 185_whiteRE = re.compile(r"\s*") 186 187def _skipWhite(data, pos, _whiteRE=_whiteRE): 188 m = _whiteRE.match(data, pos) 189 newPos = m.regs[0][1] 190 assert newPos >= pos 191 return newPos 192 193 194class Program: 195 196 def __init__(self): 197 pass 198 199 def fromBytecode(self, bytecode): 200 self.bytecode = array.array("B", bytecode) 201 if hasattr(self, "assembly"): 202 del self.assembly 203 204 def fromAssembly(self, assembly): 205 self.assembly = assembly 206 if hasattr(self, "bytecode"): 207 del self.bytecode 208 209 def getBytecode(self): 210 if not hasattr(self, "bytecode"): 211 self._assemble() 212 return self.bytecode.tostring() 213 214 def getAssembly(self): 215 if not hasattr(self, "assembly"): 216 self._disassemble() 217 return self.assembly 218 219 def toXML(self, writer, ttFont): 220 if ttFont.disassembleInstructions: 221 assembly = self.getAssembly() 222 writer.begintag("assembly") 223 writer.newline() 224 i = 0 225 nInstr = len(assembly) 226 while i < nInstr: 227 instr = assembly[i] 228 writer.write(instr) 229 writer.newline() 230 m = _pushCountPat.match(instr) 231 i = i + 1 232 if m: 233 nValues = int(m.group(1)) 234 line = [] 235 j = 0 236 for j in range(nValues): 237 if j and not (j % 25): 238 writer.write(string.join(line, " ")) 239 writer.newline() 240 line = [] 241 line.append(assembly[i+j]) 242 writer.write(string.join(line, " ")) 243 writer.newline() 244 i = i + j + 1 245 writer.endtag("assembly") 246 else: 247 writer.begintag("bytecode") 248 writer.newline() 249 writer.dumphex(self.getBytecode()) 250 writer.endtag("bytecode") 251 252 def fromXML(self, (name, attrs, content), ttFont): 253 if name == "assembly": 254 self.fromAssembly(content) 255 self._assemble() 256 del self.assembly 257 else: 258 assert name == "bytecode" 259 self.fromBytecode(readHex(content)) 260 261 def _assemble(self, 262 skipWhite=_skipWhite, mnemonicDict=mnemonicDict, strip=string.strip, 263 binary2num=binary2num): 264 assembly = self.assembly 265 if type(assembly) == type([]): 266 assembly = string.join(assembly, " ") 267 bytecode = [] 268 push = bytecode.append 269 lenAssembly = len(assembly) 270 pos = skipWhite(assembly, 0) 271 while pos < lenAssembly: 272 m = _tokenRE.match(assembly, pos) 273 if m is None: 274 raise tt_instructions_error, "Syntax error in TT program (%s)" % assembly[pos-5:pos+15] 275 dummy, mnemonic, arg, number, comment = m.groups() 276 pos = m.regs[0][1] 277 if comment: 278 continue 279 280 arg = strip(arg) 281 if mnemonic not in ("NPUSHB", "NPUSHW", "PUSHB", "PUSHW"): 282 op, argBits, name = mnemonicDict[mnemonic] 283 if len(arg) <> argBits: 284 raise tt_instructions_error, "Incorrect number of argument bits (%s[%s])" % (mnemonic, arg) 285 if arg: 286 arg = binary2num(arg) 287 push(op + arg) 288 else: 289 push(op) 290 else: 291 args = [] 292 while pos < lenAssembly: 293 pos = skipWhite(assembly, pos) 294 m = _tokenRE.match(assembly, pos) 295 if m is None: 296 raise tt_instructions_error, "Syntax error in TT program (%s)" % assembly[pos:pos+15] 297 dummy, mnemonic, arg, number, comment = m.groups() 298 if number is None and comment is None: 299 break 300 pos = m.regs[0][1] 301 if comment is not None: 302 continue 303 args.append(int(number)) 304 if max(args) > 255 or min(args) < 0: 305 words = 1 306 mnemonic = "PUSHW" 307 else: 308 words = 0 309 mnemonic = "PUSHB" 310 nArgs = len(args) 311 if nArgs <= 8: 312 op, argBits, name = streamMnemonicDict[mnemonic] 313 op = op + nArgs - 1 314 push(op) 315 elif nArgs < 256: 316 mnemonic = "N" + mnemonic 317 op, argBits, name = streamMnemonicDict[mnemonic] 318 push(op) 319 push(nArgs) 320 else: 321 raise tt_instructions_error, "More than 255 push arguments (%s)" % nArgs 322 if words: 323 for value in args: 324 push((value >> 8) & 0xff) 325 push(value & 0xff) 326 else: 327 for value in args: 328 push(value) 329 pos = skipWhite(assembly, pos) 330 331 if bytecode: 332 assert max(bytecode) < 256 and min(bytecode) >= 0 333 self.bytecode = array.array("B", bytecode) 334 335 def _disassemble(self): 336 assembly = [] 337 i = 0 338 bytecode = self.bytecode 339 numBytecode = len(bytecode) 340 while i < numBytecode: 341 op = bytecode[i] 342 arg = 0 343 try: 344 mnemonic, argBits, argoffset, name = opcodeDict[op] 345 except KeyError: 346 try: 347 mnemonic, argBits, argoffset, name = streamOpcodeDict[op] 348 except KeyError: 349 raise tt_instructions_error, "illegal opcode: 0x%.2x" % op 350 pushBytes = pushWords = 0 351 if argBits: 352 if mnemonic == "PUSHB": 353 pushBytes = op - argoffset + 1 354 else: 355 pushWords = op - argoffset + 1 356 else: 357 i = i + 1 358 if mnemonic == "NPUSHB": 359 pushBytes = bytecode[i] 360 else: 361 pushWords = bytecode[i] 362 i = i + 1 363 nValues = pushBytes or pushWords 364 assert nValues > 0 365 if nValues == 1: 366 assembly.append("%s[ ] /* %s value pushed */" % (mnemonic, nValues)) 367 else: 368 assembly.append("%s[ ] /* %s values pushed */" % (mnemonic, nValues)) 369 for j in range(pushBytes): 370 value = bytecode[i] 371 assembly.append(`value`) 372 i = i + 1 373 for j in range(pushWords): 374 # cast to signed int16 375 value = (bytecode[i] << 8) | bytecode[i+1] 376 if value >= 0x8000: 377 value = value - 0x10000 378 assembly.append(`value`) 379 i = i + 2 380 else: 381 if argBits: 382 assembly.append(mnemonic + "[%s]" % num2binary(op - argoffset, argBits)) 383 else: 384 assembly.append(mnemonic + "[ ]") 385 i = i + 1 386 self.assembly = assembly 387 388 389if __name__ == "__main__": 390 bc = """@;:9876543210/.-,+*)(\'&%$#"! \037\036\035\034\033\032\031\030\027\026\025\024\023\022\021\020\017\016\015\014\013\012\011\010\007\006\005\004\003\002\001\000,\001\260\030CXEj\260\031C`\260F#D#\020 \260FN\360M/\260\000\022\033!#\0213Y-,\001\260\030CX\260\005+\260\000\023K\260\024PX\261\000@8Y\260\006+\033!#\0213Y-,\001\260\030CXN\260\003%\020\362!\260\000\022M\033 E\260\004%\260\004%#Jad\260(RX!#\020\326\033\260\003%\020\362!\260\000\022YY-,\260\032CX!!\033\260\002%\260\002%I\260\003%\260\003%Ja d\260\020PX!!!\033\260\003%\260\003%I\260\000PX\260\000PX\270\377\3428!\033\260\0208!Y\033\260\000RX\260\0368!\033\270\377\3608!YYYY-,\001\260\030CX\260\005+\260\000\023K\260\024PX\271\000\000\377\3008Y\260\006+\033!#\0213Y-,N\001\212\020\261F\031CD\260\000\024\261\000F\342\260\000\025\271\000\000\377\3608\000\260\000<\260(+\260\002%\020\260\000<-,\001\030\260\000/\260\001\024\362\260\001\023\260\001\025M\260\000\022-,\001\260\030CX\260\005+\260\000\023\271\000\000\377\3408\260\006+\033!#\0213Y-,\001\260\030CXEdj#Edi\260\031Cd``\260F#D#\020 \260F\360/\260\000\022\033!! \212 \212RX\0213\033!!YY-,\001\261\013\012C#Ce\012-,\000\261\012\013C#C\013-,\000\260F#p\261\001F>\001\260F#p\261\002FE:\261\002\000\010\015-,\260\022+\260\002%E\260\002%Ej\260@\213`\260\002%#D!!!-,\260\023+\260\002%E\260\002%Ej\270\377\300\214`\260\002%#D!!!-,\260\000\260\022+!!!-,\260\000\260\023+!!!-,\001\260\006C\260\007Ce\012-, i\260@a\260\000\213 \261,\300\212\214\270\020\000b`+\014d#da\\X\260\003aY-,\261\000\003%EhT\260\034KPZX\260\003%E\260\003%E`h \260\004%#D\260\004%#D\033\260\003% Eh \212#D\260\003%Eh`\260\003%#DY-,\260\003% Eh \212#D\260\003%Edhe`\260\004%\260\001`#D-,\260\011CX\207!\300\033\260\022CX\207E\260\021+\260G#D\260Gz\344\033\003\212E\030i \260G#D\212\212\207 \260\240QX\260\021+\260G#D\260Gz\344\033!\260Gz\344YYY\030-, \212E#Eh`D-,EjB-,\001\030/-,\001\260\030CX\260\004%\260\004%Id#Edi\260@\213a \260\200bj\260\002%\260\002%a\214\260\031C`\260F#D!\212\020\260F\366!\033!!!!Y-,\001\260\030CX\260\002%E\260\002%Ed`j\260\003%Eja \260\004%Ej \212\213e\260\004%#D\214\260\003%#D!!\033 EjD EjDY-,\001 E\260\000U\260\030CZXEh#Ei\260@\213a \260\200bj \212#a \260\003%\213e\260\004%#D\214\260\003%#D!!\033!!\260\031+Y-,\001\212\212Ed#EdadB-,\260\004%\260\004%\260\031+\260\030CX\260\004%\260\004%\260\003%\260\033+\001\260\002%C\260@T\260\002%C\260\000TZX\260\003% E\260@aDY\260\002%C\260\000T\260\002%C\260@TZX\260\004% E\260@`DYY!!!!-,\001KRXC\260\002%E#aD\033!!Y-,\001KRXC\260\002%E#`D\033!!Y-,KRXED\033!!Y-,\001 \260\003%#I\260@`\260 c \260\000RX#\260\002%8#\260\002%e8\000\212c8\033!!!!!Y\001-,KPXED\033!!Y-,\001\260\005%\020# \212\365\000\260\001`#\355\354-,\001\260\005%\020# \212\365\000\260\001a#\355\354-,\001\260\006%\020\365\000\355\354-,F#F`\212\212F# F\212`\212a\270\377\200b# \020#\212\261KK\212pE` \260\000PX\260\001a\270\377\272\213\033\260F\214Y\260\020`h\001:-, E\260\003%FRX\260\002%F ha\260\003%\260\003%?#!8\033!\021Y-, E\260\003%FPX\260\002%F ha\260\003%\260\003%?#!8\033!\021Y-,\000\260\007C\260\006C\013-,\212\020\354-,\260\014CX!\033 F\260\000RX\270\377\3608\033\260\0208YY-, \260\000UX\270\020\000c\260\003%Ed\260\003%Eda\260\000SX\260\002\033\260@a\260\003Y%EiSXED\033!!Y\033!\260\002%E\260\002%Ead\260(QXED\033!!YY-,!!\014d#d\213\270@\000b-,!\260\200QX\014d#d\213\270 \000b\033\262\000@/+Y\260\002`-,!\260\300QX\014d#d\213\270\025Ub\033\262\000\200/+Y\260\002`-,\014d#d\213\270@\000b`#!-,KSX\260\004%\260\004%Id#Edi\260@\213a \260\200bj\260\002%\260\002%a\214\260F#D!\212\020\260F\366!\033!\212\021#\022 9/Y-,\260\002%\260\002%Id\260\300TX\270\377\3708\260\0108\033!!Y-,\260\023CX\003\033\002Y-,\260\023CX\002\033\003Y-,\260\012+#\020 <\260\027+-,\260\002%\270\377\3608\260(+\212\020# \320#\260\020+\260\005CX\300\033<Y \020\021\260\000\022\001-,KS#KQZX8\033!!Y-,\001\260\002%\020\320#\311\001\260\001\023\260\000\024\020\260\001<\260\001\026-,\001\260\000\023\260\001\260\003%I\260\003\0278\260\001\023-,KS#KQZX E\212`D\033!!Y-, 9/-""" 391 392 p = Program() 393 p.fromBytecode(bc) 394 as = p.getAssembly() 395 p.fromAssembly(as) 396 print bc == p.getBytecode() 397 398