# -*- coding: utf-8 -*- # # AWL data types # # Copyright 2012-2015 Michael Buesch # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. # from __future__ import division, absolute_import, print_function, unicode_literals from awlsim.common.compat import * from awlsim.common.datatypehelpers import * from awlsim.common.immutable import * from awlsim.core.util import * from awlsim.core.timers import * from awlsim.core.offset import * from awlsim.core.identifier import * import datetime class AwlDataType(OptionalImmutable): # Data type IDs EnumGen.start TYPE_VOID = EnumGen.item TYPE_NIL = EnumGen.item TYPE_BOOL = EnumGen.item TYPE_BYTE = EnumGen.item TYPE_WORD = EnumGen.item TYPE_DWORD = EnumGen.item TYPE_INT = EnumGen.item TYPE_DINT = EnumGen.item TYPE_REAL = EnumGen.item TYPE_S5T = EnumGen.item TYPE_TIME = EnumGen.item TYPE_DATE = EnumGen.item TYPE_DT = EnumGen.item TYPE_TOD = EnumGen.item TYPE_CHAR = EnumGen.item TYPE_ARRAY = EnumGen.item TYPE_STRUCT = EnumGen.item TYPE_STRING = EnumGen.item TYPE_TIMER = EnumGen.item TYPE_COUNTER = EnumGen.item TYPE_POINTER = EnumGen.item TYPE_ANY = EnumGen.item TYPE_BLOCK_DB = EnumGen.item # DB number type TYPE_BLOCK_SDB = EnumGen.item # SDB number type TYPE_BLOCK_FB = EnumGen.item # FB number type TYPE_BLOCK_FC = EnumGen.item # FC number type TYPE_DB_X = EnumGen.item # DBx type TYPE_OB_X = EnumGen.item # OBx type TYPE_FC_X = EnumGen.item # FCx type TYPE_SFC_X = EnumGen.item # SFCx type TYPE_FB_X = EnumGen.item # FBx type TYPE_SFB_X = EnumGen.item # SFBx type TYPE_UDT_X = EnumGen.item # UDTx type TYPE_VAT_X = EnumGen.item # VATx type EnumGen.end __name2id = { "VOID" : TYPE_VOID, "NIL" : TYPE_NIL, "BOOL" : TYPE_BOOL, "BYTE" : TYPE_BYTE, "WORD" : TYPE_WORD, "DWORD" : TYPE_DWORD, "INT" : TYPE_INT, "DINT" : TYPE_DINT, "REAL" : TYPE_REAL, "S5TIME" : TYPE_S5T, "TIME" : TYPE_TIME, "DATE" : TYPE_DATE, "DATE_AND_TIME" : TYPE_DT, "TIME_OF_DAY" : TYPE_TOD, "CHAR" : TYPE_CHAR, "ARRAY" : TYPE_ARRAY, "STRUCT" : TYPE_STRUCT, "STRING" : TYPE_STRING, "TIMER" : TYPE_TIMER, "COUNTER" : TYPE_COUNTER, "POINTER" : TYPE_POINTER, "ANY" : TYPE_ANY, "BLOCK_DB" : TYPE_BLOCK_DB, "BLOCK_SDB" : TYPE_BLOCK_SDB, "BLOCK_FB" : TYPE_BLOCK_FB, "BLOCK_FC" : TYPE_BLOCK_FC, "DB" : TYPE_DB_X, "OB" : TYPE_OB_X, "FC" : TYPE_FC_X, "SFC" : TYPE_SFC_X, "FB" : TYPE_FB_X, "SFB" : TYPE_SFB_X, "UDT" : TYPE_UDT_X, "VAT" : TYPE_VAT_X, } __id2name = pivotDict(__name2id) # Width table for types # -1 => Type width must be calculated __typeWidths = { TYPE_VOID : 0, TYPE_NIL : 0, TYPE_BOOL : 1, TYPE_BYTE : 8, TYPE_WORD : 16, TYPE_DWORD : 32, TYPE_INT : 16, TYPE_DINT : 32, TYPE_REAL : 32, TYPE_S5T : 16, TYPE_TIME : 32, TYPE_DATE : 16, TYPE_DT : 64, TYPE_TOD : 32, TYPE_CHAR : 8, TYPE_ARRAY : -1, TYPE_STRUCT : -1, TYPE_STRING : -1, TYPE_TIMER : 16, TYPE_COUNTER : 16, TYPE_POINTER : 48, TYPE_ANY : 80, TYPE_BLOCK_DB : 16, TYPE_BLOCK_SDB : 16, TYPE_BLOCK_FB : 16, TYPE_BLOCK_FC : 16, TYPE_DB_X : -1, TYPE_OB_X : 0, TYPE_FC_X : 0, TYPE_SFC_X : 0, TYPE_FB_X : -1, TYPE_SFB_X : -1, TYPE_UDT_X : -1, TYPE_VAT_X : 0, } # Table of trivial types with sign __signedTypes = { TYPE_INT, TYPE_DINT, TYPE_REAL, } # Table of compound types __compoundTypes = { TYPE_DT, TYPE_ARRAY, TYPE_STRUCT, TYPE_STRING, TYPE_UDT_X, # No TYPE_POINTER here. # Technically POINTER is compound, too, but we use this # table to decide whether we need to create POINTERs. # Adding TYPE_POINTER here would create an infinite loop. } # Table of types allowed inside of STRUCT. __allowedInStructTypes = { TYPE_BOOL, TYPE_BYTE, TYPE_WORD, TYPE_DWORD, TYPE_INT, TYPE_DINT, TYPE_REAL, TYPE_S5T, TYPE_TIME, TYPE_DATE, TYPE_DT, TYPE_TOD, TYPE_CHAR, TYPE_ARRAY, TYPE_STRUCT, TYPE_STRING, TYPE_UDT_X, } # Table of types allowed as ARRAY element. __allowedInArrayTypes = __allowedInStructTypes # Table of types allowed as block interface element. __allowedInInterfaceTypes = __allowedInStructTypes | { TYPE_TIMER, TYPE_COUNTER, TYPE_POINTER, TYPE_ANY, TYPE_BLOCK_DB, TYPE_BLOCK_FB, TYPE_BLOCK_FC, TYPE_FB_X, TYPE_SFB_X, } # Convert a list of array dimensions into a number of elements. @classmethod def arrayDimensionsToNrElements(cls, dimensions): assert(dimensions is not None) assert(len(dimensions) >= 1 and len(dimensions) <= 6) nrElems = reduce(lambda a, b: a * (b[1] - b[0] + 1), dimensions, 1) return nrElems @classmethod def _name2typeid(cls, nameTokens): nameTokens = toList(nameTokens) try: return cls.__name2id[nameTokens[0].upper()] except (KeyError, IndexError) as e: raise AwlSimError("Invalid data type name: " +\ nameTokens[0] if len(nameTokens) else "None") # Dict of simple types that were already contructed # and can be re-used. # All types herein are forced immutable. __staticTypes = { TYPE_VOID : None, TYPE_BOOL : None, TYPE_BYTE : None, TYPE_WORD : None, TYPE_DWORD : None, TYPE_INT : None, TYPE_DINT : None, TYPE_REAL : None, TYPE_S5T : None, TYPE_TIME : None, TYPE_DATE : None, TYPE_DT : None, TYPE_TOD : None, TYPE_CHAR : None, TYPE_TIMER : None, TYPE_COUNTER : None, TYPE_POINTER : None, TYPE_ANY : None, TYPE_BLOCK_DB : None, TYPE_BLOCK_SDB : None, TYPE_BLOCK_FB : None, TYPE_BLOCK_FC : None, } @classmethod def makeByName(cls, nameTokens, arrayDimensions=None): """Make an AwlDataType instance by type name. nameTokens -> a list of tokens for the type name. arrayDimensions -> List of possible array dimensions, or None. Each list element is a tuple of (start, end) with the start and end array index for that dimension.""" nameTokens = toList(nameTokens) type = cls._name2typeid(nameTokens) # Check if we already had such a type and use that. if not arrayDimensions: dataType = cls.__staticTypes.get(type) if dataType: assert(dataType.isImmutable()) return dataType if type == cls.TYPE_STRING: # Construct a data structure for the STRING layout. strLen = -1 if len(nameTokens) == 1: # Extension: No dimensions means [254] strLen = 254 elif len(nameTokens) == 4 and\ nameTokens[1] == '[' and nameTokens[3] == ']' and\ nameTokens[2].isdecimal(): strLen = int(nameTokens[2], 10) if strLen < 0 or strLen > 254: raise AwlSimError("Invalid STRING length definition " "in '%s'" % "".join(nameTokens)) byteType = cls.makeByName("BYTE") import awlsim.core.datastructure as datastructure struct = datastructure.AwlStruct() struct.addField(cpu = None, name = None, dataType = byteType, initBytes = ByteArray((strLen,))) struct.addField(cpu = None, name = None, dataType = byteType) for i in range(strLen): struct.addField(cpu = None, name = "[%s]" % (i + 1), dataType = byteType) else: struct = None index = None if type == cls.TYPE_ARRAY: raise AwlSimError("Nested ARRAYs are not allowed") elif type in (cls.TYPE_DB_X, cls.TYPE_OB_X, cls.TYPE_FC_X, cls.TYPE_SFC_X, cls.TYPE_FB_X, cls.TYPE_SFB_X, cls.TYPE_UDT_X): if len(nameTokens) < 2: raise AwlSimError("Invalid '%s' block data type" %\ nameTokens[0]) blockNumber = cls.tryParseImmediate_INT(nameTokens[1]) if blockNumber is None: raise AwlSimError("Invalid '%s' block data type "\ "index" % nameTokens[0]) index = blockNumber if arrayDimensions: # An ARRAY is to be constructed. elementType = cls.makeByName(nameTokens) dataType = cls(type = cls.TYPE_ARRAY, index = index, arrayDimensions = arrayDimensions, arrayElementType = elementType) else: dataType = cls(type = type, index = index, struct = struct) # Store the data type instance for later re-use, if it is # in the simple-types dict. # Force it immutable, so it cannot change anymore. if type in cls.__staticTypes: dataType.setImmutable() assert(dataType.index is None) assert(dataType.arrayDimensions is None) assert(dataType.arrayElementType is None) assert(dataType.struct is None) assert(cls.__staticTypes[type] is None) cls.__staticTypes[type] = dataType return dataType __slots__ = ( "type", "index", "arrayDimensions", "arrayElementType", "struct", "__widthOverride", ) def __init__(self, type, index=None, arrayDimensions=None, arrayElementType=None, struct=None): super(AwlDataType, self).__init__() self.type = type # The TYPE_... for this datatype self.index = index # The Index number, if any. May be None self.arrayDimensions = arrayDimensions # The ARRAY's dimensions self.arrayElementType = arrayElementType # AwlDataType for the array elements. self.setStruct(struct) # AwlStruct instance. Only for STRUCT type. self.__widthOverride = None # Set the AwlStruct that defines the structure of this STRUCT type. def setStruct(self, struct): assert(struct is None or self.type == self.TYPE_STRUCT or self.type == self.TYPE_UDT_X or self.type == self.TYPE_STRING) self.struct = struct # Get the type element structure. # This is the element's struct for ARRAYs and the struct # of this type for STRUCTs/UDTs. # None for others. @property def itemStruct(self): if self.type == self.TYPE_ARRAY: return self.arrayElementType.struct return self.struct # Returns the width of this data type, in bits. @property def width(self): if self.__widthOverride is not None: return self.__widthOverride if self.type == self.TYPE_ARRAY: nrElements = self.arrayGetNrElements() if self.arrayElementType.type == self.TYPE_STRUCT: if self.arrayElementType.struct: oneElemWidth = self.arrayElementType.struct.getSize() * 8 width = nrElements * oneElemWidth else: width = -1 else: oneElemWidth = self.arrayElementType.width width = nrElements * oneElemWidth elif self.type == self.TYPE_STRUCT or\ self.type == self.TYPE_UDT_X: if self.struct: width = self.struct.getSize() * 8 else: width = -1 elif self.type == self.TYPE_STRING: width = self.struct.getUnalignedSize() * 8 else: width = self.__typeWidths[self.type] return width # Override the width calculation. @width.setter def width(self, widthOverride): self.__widthOverride = widthOverride # Returns True, if this is a compound data type. # Does not return True for TYPE_POINTER. @property def compound(self): return self.type in self.__compoundTypes # Returns True, if this is a signed type. @property def isSigned(self): return self.type in self.__signedTypes # Returns True, if this type is allowed in STRUCTs. @property def allowedInStruct(self): return self.type in self.__allowedInStructTypes # Returns True, if this type is allowed as ARRAY element. @property def allowedInArray(self): return self.type in self.__allowedInArrayTypes # Returns True, if this type is allowed in block interfaces. @property def allowedInInterface(self): return self.type in self.__allowedInInterfaceTypes # Possible values for 'naturalAlignment'. EnumGen.start ALIGN_BIT = EnumGen.item ALIGN_BYTE = EnumGen.item ALIGN_WORD = EnumGen.item EnumGen.end # Get the natural alignment of this type. @property def naturalAlignment(self): if self.width == 1: return self.ALIGN_BIT if self.width == 8: return self.ALIGN_BYTE if self.type == self.TYPE_ARRAY or\ self.type == self.TYPE_STRUCT or\ self.type == self.TYPE_UDT_X or\ self.width > 8: return self.ALIGN_WORD assert(0) # Convert array indices into a one dimensional index for this array. # 'indices' is a list of index integers as written in the AWL operator # from left to right. def arrayIndicesCollapse(self, indices): if not indices: return None if len(indices) < 1 or len(indices) > 6: raise AwlSimError("Invalid number of array indices") assert(self.type == self.TYPE_ARRAY) signif = self.arrayIndexSignificances() assert(len(indices) == len(signif)) assert(len(indices) == len(self.arrayDimensions)) resIndex = 0 for i, idx in enumerate(indices): startIdx, endIdx = self.arrayDimensions[i] if idx < startIdx or idx > endIdx: raise AwlSimError("Array index '%d' is out of bounds " "for array range '%d .. %d'." %\ (idx, startIdx, endIdx)) resIndex += (idx - startIdx) * signif[i] return resIndex # Get the array dimension sizes. Returns a tuple of integers. def arrayDimSizes(self): assert(self.type == self.TYPE_ARRAY) return tuple(end - start + 1 for start, end in self.arrayDimensions) # Get the array index significances. Returns a tuple of integers. def arrayIndexSignificances(self): assert(self.type == self.TYPE_ARRAY) sizes = self.arrayDimSizes() signif = [ 1, ] for size in sizes[:0:-1]: signif.append(size * signif[-1]) return tuple(signif[::-1]) # Get the number of array elements def arrayGetNrElements(self): assert(self.type == self.TYPE_ARRAY) return self.arrayDimensionsToNrElements(self.arrayDimensions) # Parse an immediate, constrained by our datatype. def parseMatchingImmediate(self, tokens): typeId = self.type typeWidth = self.width if typeId == self.TYPE_ARRAY: typeId = self.arrayElementType.type typeWidth = self.arrayElementType.width value = None if tokens is None: value = 0 elif len(tokens) == 9: if typeId == self.TYPE_DWORD: value, fields = self.tryParseImmediate_ByteArray( tokens) elif len(tokens) == 5: if typeId == self.TYPE_WORD: value, fields = self.tryParseImmediate_ByteArray( tokens) elif typeId == self.TYPE_DT: value = self.tryParseImmediate_DT(tokens) elif typeId == self.TYPE_TOD: value = self.tryParseImmediate_TOD(tokens) elif len(tokens) == 2: if typeId == self.TYPE_TIMER: if tokens[0].upper() == "T": value = self.tryParseImmediate_INT(tokens[1]) elif typeId == self.TYPE_COUNTER: if tokens[0].upper() in ("C", "Z"): value = self.tryParseImmediate_INT(tokens[1]) elif typeId == self.TYPE_BLOCK_DB: if tokens[0].upper() == "DB": value = self.tryParseImmediate_INT(tokens[1]) elif typeId == self.TYPE_BLOCK_FB: if tokens[0].upper() == "FB": value = self.tryParseImmediate_INT(tokens[1]) elif typeId == self.TYPE_BLOCK_FC: if tokens[0].upper() == "FC": value = self.tryParseImmediate_INT(tokens[1]) elif len(tokens) == 1: if typeId == self.TYPE_BOOL: value = self.tryParseImmediate_BOOL( tokens[0]) elif typeId == self.TYPE_BYTE: value = self.tryParseImmediate_HexByte( tokens[0]) elif typeId == self.TYPE_WORD: value = self.tryParseImmediate_Bin( tokens[0]) if value is None: value = self.tryParseImmediate_HexWord( tokens[0]) if value is None: value = self.tryParseImmediate_BCD_word( tokens[0]) elif typeId == self.TYPE_DWORD: value = self.tryParseImmediate_Bin( tokens[0]) if value is None: value = self.tryParseImmediate_HexDWord( tokens[0]) elif typeId == self.TYPE_INT: value = self.tryParseImmediate_INT( tokens[0]) elif typeId == self.TYPE_DINT: value = self.tryParseImmediate_DINT( tokens[0]) elif typeId == self.TYPE_REAL: value = self.tryParseImmediate_REAL( tokens[0]) elif typeId == self.TYPE_S5T: value = self.tryParseImmediate_S5T( tokens[0]) elif typeId == self.TYPE_TIME: value = self.tryParseImmediate_TIME( tokens[0]) elif typeId == self.TYPE_CHAR: value = self.tryParseImmediate_CHAR( tokens[0]) elif typeId == self.TYPE_STRING: value = self.tryParseImmediate_STRING( tokens[0]) typeStrLen = intDivRoundUp(typeWidth, 8) - 2 immStrLen = len(value) - 2 assert(typeStrLen >= 0 and immStrLen >= 0) if immStrLen > typeStrLen: raise AwlSimError("String immediate is " "too long. Length is %d characters, " "but maximum is %d characters." %\ immStrLen, typeStrLen) # Expand the string to type length. if immStrLen < typeStrLen: value[0] = typeStrLen value.extend(b'\x00' * (typeStrLen - immStrLen)) elif typeId == self.TYPE_DATE: value = self.tryParseImmediate_DATE( tokens[0]) if value is None: raise AwlSimError("Immediate value '%s' does " "not match data type '%s'" %\ (" ".join(tokens), str(self))) return value def __repr__(self): if self.type == self.TYPE_ARRAY: return "ARRAY" #TODO elif self.type == self.TYPE_STRING: return "STRING[%d]" % (self.width // 8 - 2) elif self.type in (self.TYPE_DB_X, self.TYPE_OB_X, self.TYPE_FC_X, self.TYPE_SFC_X, self.TYPE_FB_X, self.TYPE_SFB_X, self.TYPE_UDT_X): return "%s %d" % ( self.__id2name[self.type], self.index, ) try: return self.__id2name[self.type] except KeyError: raise AwlSimError("Invalid data type: " +\ str(type)) @classmethod def tryParseImmediate_BOOL(cls, token): token = token.upper().strip() if token == "TRUE": return 1 elif token == "FALSE": return 0 return None @classmethod def tryParseImmediate_INT(cls, token): try: immediate = int(token, 10) if immediate > 32767 or immediate < -32768: raise AwlSimError("16-bit immediate overflow") except ValueError: return None return immediate @classmethod def tryParseImmediate_DINT(cls, token): token = token.upper() if not token.startswith("L#"): return None try: immediate = int(token[2:], 10) if immediate > 2147483647 or\ immediate < -2147483648: raise AwlSimError("32-bit immediate overflow") immediate &= 0xFFFFFFFF except ValueError as e: raise AwlSimError("Invalid immediate") return immediate @classmethod def tryParseImmediate_BCD_word(cls, token): token = token.upper() if not token.startswith("C#"): return None try: cnt = token[2:] if len(cnt) < 1 or len(cnt) > 3: raise ValueError a, b, c = 0, 0, 0 if cnt: a = int(cnt[-1], 10) cnt = cnt[:-1] if cnt: b = int(cnt[-1], 10) cnt = cnt[:-1] if cnt: c = int(cnt[-1], 10) cnt = cnt[:-1] immediate = a | (b << 4) | (c << 8) except ValueError as e: raise AwlSimError("Invalid C# immediate") return immediate @classmethod def tryParseImmediate_REAL(cls, token): try: immediate = float(token) immediate = pyFloatToDWord(immediate) except ValueError: return None return immediate @classmethod def __parseGenericTime(cls, token, allowNegative): # Parse T# or S5T# time formats. # The prefix is already stripped. if not token: raise AwlSimError("Invalid time") token = token.upper() p = token isNegative = False if p.startswith("-"): if not allowNegative: raise AwlSimError("Negative time now allowed") isNegative = True p = p[1:] seconds = 0.0 while p: if p.endswith("MS"): mult = 0.001 p = p[:-2] elif p.endswith("S"): mult = 1.0 p = p[:-1] elif p.endswith("M"): mult = 60.0 p = p[:-1] elif p.endswith("H"): mult = 3600.0 p = p[:-1] elif p.endswith("D"): mult = 86400.0 p = p[:-1] else: raise AwlSimError("Invalid time") if not p: raise AwlSimError("Invalid time") num = "" while p and p[-1] in "0123456789": num = p[-1] + num p = p[:-1] if not num: raise AwlSimError("Invalid time") num = int(num, 10) seconds += num * mult if isNegative: seconds *= -1.0 return seconds @classmethod def formatTime(cls, seconds, leadingZeros=False): # Format a seconds value into time format. d = int(seconds // 86400) seconds -= d * 86400 h = int(seconds // 3600) seconds -= h * 3600 m = int(seconds // 60) seconds -= m * 60 s = int(seconds) seconds -= s ms = int(seconds * 1000.0) ret = [] for v, b, d in ((d, "d", 1), (h, "h", 2), (m, "m", 2), (s, "s", 2), (ms, "ms", 3)): if not v: continue if leadingZeros: fmt = "%0" + str(d) + "d%s" ret.append(fmt % (v, b)) else: ret.append("%d%s" % (v, b)) if not ret: return "0ms" return "".join(ret) @classmethod def __tryParseImmediate_STRING(cls, token, maxLen=254): if not token.startswith("'") or\ not token.endswith("'"): return None token = token[1:-1] if len(token) > maxLen: raise AwlSimError("String too long (>%d characters)" % maxLen) try: import awlsim.core.parser as parser data = token.encode(parser.AwlParser.TEXT_ENCODING) data = bytearray(data) if len(data) != len(token): raise ValueError except (UnicodeError, ValueError) as e: raise AwlSimError("Invalid characters in string '%s'." %\ token) return data @classmethod def tryParseImmediate_STRING(cls, token): data = cls.__tryParseImmediate_STRING(token) if data is None: return None # Add max-length and actual-length bytes. data = bytearray((len(data), len(data))) + data return data @classmethod def tryParseImmediate_CHAR(cls, token): data = cls.__tryParseImmediate_STRING(token, 1) if data is None: return None # Return it as integer. return data[0] @classmethod def tryParseImmediate_S5T(cls, token): token = token.upper() if not token.startswith("S5T#"): return None seconds = cls.__parseGenericTime(token[4:], allowNegative=False) s5t = Timer.seconds_to_s5t(seconds) return s5t @classmethod def tryParseImmediate_TIME(cls, token): token = token.upper() if not token.startswith("T#") and\ not token.startswith("TIME#"): return None token = token[token.find("#") + 1 : ] # Remove prefix seconds = cls.__parseGenericTime(token, allowNegative=True) msec = int(seconds * 1000) if msec > 0x7FFFFFFF: raise AwlSimError("T# time too big") return msec @classmethod def tryParseImmediate_TOD(cls, tokens): token = "".join(tokens) if not token.startswith("TOD#") and\ not token.startswith("TIME_OF_DAY#"): return None token = token[token.find("#") + 1 : ] # Remove prefix try: time = token.split(":") if len(time) != 3: raise ValueError hours, minutes, fseconds = int(time[0]), int(time[1]), float(time[2]) seconds = int(fseconds) msecs = int(fseconds * 1000) - (seconds * 1000) if hours < 0 or hours > 23 or\ minutes < 0 or minutes > 59 or\ seconds < 0 or seconds > 59 or\ msecs < 0 or msecs > 999: raise ValueError val = hours * 60 * 60 * 1000 +\ minutes * 60 * 1000 +\ seconds * 1000 +\ msecs return val except ValueError: raise AwlSimError("Invalid TIME_OF_DAY immediate") @classmethod def tryParseImmediate_DATE(cls, token): token = token.upper() if not token.startswith("D#") and\ not token.startswith("DATE#"): return None token = token[token.find("#") + 1 : ] # Remove prefix try: date = token.split("-") if len(date) != 3: raise ValueError year, month, day = int(date[0]), int(date[1]), int(date[2]) delta = datetime.date(year, month, day) -\ datetime.date(1990, 1, 1) days = delta.days if days < 0 or days > 65378: raise ValueError return days except ValueError: raise AwlSimError("Invalid DATE immediate") dateAndTimeWeekdayMap = { 0 : 2, # monday 1 : 3, # tuesday 2 : 4, # wednesday 3 : 5, # thursday 4 : 6, # friday 5 : 7, # saturday 6 : 1, # sunday } @classmethod def tryParseImmediate_DT(cls, tokens): token = "".join(tokens) if not token.startswith("DT#") and\ not token.startswith("DATE_AND_TIME#"): return None token = token[token.find("#") + 1 : ] # Remove prefix try: idx = token.rfind("-") date = token[ : idx] time = token[idx + 1 : ] date = date.split("-") time = time.split(":") if len(date) != 3 or len(time) != 3: raise ValueError year, month, day = int(date[0]), int(date[1]), int(date[2]) weekday = datetime.date(year, month, day).weekday() weekday = cls.dateAndTimeWeekdayMap[weekday] if year >= 100: year -= 1900 if year > 99: year -= 100 if year < 0 or year > 99 or\ month < 1 or month > 12 or\ day < 1 or day > 31: raise ValueError year = (year % 10) | (((year // 10) % 10) << 4) month = (month % 10) | (((month // 10) % 10) << 4) day = (day % 10) | (((day // 10) % 10) << 4) hour, minute, fsecond = int(time[0]), int(time[1]), float(time[2]) second = int(fsecond) msec = int(fsecond * 1000) - (second * 1000) if hour < 0 or hour > 23 or\ minute < 0 or minute > 59 or\ second < 0 or second > 59 or\ msec < 0 or msec > 999: raise ValueError hour = (hour % 10) | (((hour // 10) % 10) << 4) minute = (minute % 10) | (((minute // 10) % 10) << 4) second = (second % 10) | (((second // 10) % 10) << 4) msec = (msec % 10) | (((msec // 10) % 10) << 4) |\ (((msec // 100) % 10) << 8) data = ByteArray( (year, month, day, hour, minute, second, (msec >> 4) & 0xFF, ((msec & 0xF) << 4) | weekday) ) except ValueError: raise AwlSimError("Invalid DATE_AND_TIME immediate") return data @classmethod def __parsePtrOffset(cls, string): try: values = string.split(".") if len(values) != 2: raise ValueError byteOffset = int(values[0], 10) bitOffset = int(values[1], 10) if bitOffset < 0 or bitOffset > 7 or\ byteOffset < 0 or byteOffset > 0xFFFF: raise ValueError return (byteOffset << 3) | bitOffset except ValueError: raise AwlSimError("Invalid pointer offset") @classmethod def tryParseImmediate_Pointer(cls, tokens): prefix = tokens[0] if not prefix.upper().startswith("P#"): return None, None prefix = prefix[2:] # Strip P# pointer = None dotIdx = prefix.find(".") if dotIdx >= 3 and prefix[:dotIdx].upper().startswith("DB") and\ prefix[2:dotIdx].isdecimal(): # Parse DB number prefix dbNr = int(prefix[2:dotIdx]) prefix = prefix[dotIdx+1:] pointer = DBPointer(0, dbNr) elif dotIdx >= 3 and prefix.startswith('"'): endIdx = prefix[1:].find('".') + 1 if endIdx >= 2: # Parse symbolic DB name prefix dbSymbol = prefix[1:endIdx] prefix = prefix[endIdx+2:] pointer = SymbolicDBPointer(dbSymbol = dbSymbol) if pointer is None: # There is no DB number. pointer = Pointer(0) prefix = prefix.upper() try: if prefix == "P": ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x80000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix in ("E", "I"): ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x81000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix in ("A", "Q"): ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x82000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix == "M": ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x83000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix == "DBX": ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x84000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix == "DIX": ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x85000000 pointer.setDWord(ptr) nrTokens = 2 elif prefix == "L": ptr = cls.__parsePtrOffset(tokens[1]) |\ 0x86000000 pointer.setDWord(ptr) nrTokens = 2 else: if isinstance(pointer, DBPointer) and\ prefix and not prefix[0].isdecimal(): # This is a named DB variable pointer. # (awlsim extension). if not isinstance(pointer, SymbolicDBPointer): pointer = SymbolicDBPointer(pointer.toPointerValue(), pointer.dbNr) tokens = [ prefix ] + tokens[1:] tokens, nrTokens = AwlDataIdentChain.expandTokens(tokens) pointer.identChain = AwlDataIdentChain.parseTokens(tokens) return pointer, nrTokens # Area-internal pointer ptr = cls.__parsePtrOffset(prefix) pointer.setDWord(ptr) nrTokens = 1 except IndexError: raise AwlSimError("Invalid pointer immediate") # Check if this is an ANY pointer immediate. if len(tokens) >= nrTokens + 2: typeToken = tokens[nrTokens] countToken = tokens[nrTokens + 1] # Is this a possible ANY pointer? # Try to look up the data type name. try: cls._name2typeid(typeToken) isAnyPtr = True except AwlSimError as e: isAnyPtr = False if isAnyPtr: # Parse the data type and repetition count. dataType = AwlDataType.makeByName(typeToken) try: count = int(countToken, 10) if count < 1 or count > 65535 or\ count * (dataType.width // 8) > 65535: raise ValueError except ValueError as e: raise AwlSimError("ANY pointer: " "Invalid repetition count.") # Convert pointer to ANY pointer = pointer.toANYPointer() pointer.dataType = dataType pointer.count = count nrTokens += 2 return pointer, nrTokens @classmethod def tryParseImmediate_Bin(cls, token): token = token.upper() if not token.startswith("2#"): return None try: string = token[2:].replace('_', '') immediate = int(string, 2) if immediate > 0xFFFFFFFF: raise ValueError except ValueError as e: raise AwlSimError("Invalid immediate") return immediate @classmethod def tryParseImmediate_ByteArray(cls, tokens): tokens = [ t.upper() for t in tokens ] if not tokens[0].startswith("B#("): return None, None try: if len(tokens) >= 5 and\ tokens[2] == ',' and\ tokens[4] == ')': fields = 5 a, b = int(tokens[1], 10),\ int(tokens[3], 10) if a < 0 or a > 0xFF or\ b < 0 or b > 0xFF: raise ValueError immediate = (a << 8) | b elif len(tokens) >= 9 and\ tokens[2] == ',' and\ tokens[4] == ',' and\ tokens[6] == ',' and\ tokens[8] == ')': fields = 9 a, b, c, d = int(tokens[1], 10),\ int(tokens[3], 10),\ int(tokens[5], 10),\ int(tokens[7], 10) if a < 0 or a > 0xFF or\ b < 0 or b > 0xFF or\ c < 0 or c > 0xFF or\ d < 0 or d > 0xFF: raise ValueError immediate = (a << 24) | (b << 16) |\ (c << 8) | d else: raise ValueError except ValueError as e: raise AwlSimError("Invalid immediate") return immediate, fields @classmethod def tryParseImmediate_HexByte(cls, token): token = token.upper() if not token.startswith("B#16#"): return None try: immediate = int(token[5:], 16) if immediate > 0xFF: raise ValueError except ValueError as e: raise AwlSimError("Invalid immediate") return immediate @classmethod def tryParseImmediate_HexWord(cls, token): token = token.upper() if not token.startswith("W#16#"): return None try: immediate = int(token[5:], 16) if immediate > 0xFFFF: raise ValueError except ValueError as e: raise AwlSimError("Invalid immediate") return immediate @classmethod def tryParseImmediate_HexDWord(cls, token): token = token.upper() if not token.startswith("DW#16#"): return None try: immediate = int(token[6:], 16) if immediate > 0xFFFFFFFF: raise ValueError except ValueError as e: raise AwlSimError("Invalid immediate") return immediate class GenericInteger(object): #+cdef __slots__ = ( "value", "mask", ) #@cy cdef public uint32_t value #@cy cdef public uint32_t mask def __init__(self, value, width): #@nocy #@cy def __init__(self, int64_t value, uint8_t width): #@cy cdef uint64_t one assert(width > 0 and width <= 32) self.value = value one = 1 self.mask = int(((one << width) - 1) & 0xFFFFFFFF) def copyFrom(self, other): #@nocy #@cy cpdef copyFrom(self, GenericInteger other): self.value = other.value & self.mask def reset(self): #@nocy #@cy cpdef reset(self): self.value = 0 def set(self, value): #@nocy #@cy cpdef set(self, int64_t value): self.value = value & self.mask def setByte(self, value): #@nocy #@cy cpdef setByte(self, int64_t value): self.value = ((self.value & 0xFFFFFF00) |\ (value & 0xFF)) &\ self.mask def setWord(self, value): #@nocy #@cy cpdef setWord(self, int64_t value): self.value = ((self.value & 0xFFFF0000) |\ (value & 0xFFFF)) &\ self.mask def setDWord(self, value): #@nocy #@cy cpdef setDWord(self, int64_t value): self.value = value & 0xFFFFFFFF & self.mask def setPyFloat(self, pyfl): #@nocy #@cy cpdef setPyFloat(self, pyfl): self.value = pyFloatToDWord(pyfl) def get(self): #@nocy #@cy cpdef uint32_t get(self): return self.value def getByte(self): #@nocy #@cy cpdef uint8_t getByte(self): return self.value & 0xFF def getWord(self): #@nocy #@cy cpdef uint16_t getWord(self): return self.value & 0xFFFF def getDWord(self): #@nocy #@cy cpdef uint32_t getDWord(self): return self.value & 0xFFFFFFFF def getSignedByte(self): #@nocy #@cy cpdef int8_t getSignedByte(self): return byteToSignedPyInt(self.value) def getSignedWord(self): #@nocy #@cy cpdef int16_t getSignedWord(self): return wordToSignedPyInt(self.value) def getSignedDWord(self): #@nocy #@cy cpdef int32_t getSignedDWord(self): return dwordToSignedPyInt(self.value) def getPyFloat(self): #@nocy #@cy cpdef getPyFloat(self): return dwordToPyFloat(self.value) def setBit(self, bitNumber): #@nocy #@cy cpdef setBit(self, uint8_t bitNumber): self.value = (self.value | (1 << bitNumber)) & self.mask def clearBit(self, bitNumber): #@nocy #@cy cpdef clearBit(self, uint8_t bitNumber): self.value &= ~(1 << bitNumber) def setBitValue(self, bitNumber, value): #@nocy #@cy cpdef setBitValue(self, uint8_t bitNumber, uint8_t value): if value: self.setBit(bitNumber) else: self.clearBit(bitNumber) def getBit(self, bitNumber): #@nocy #@cy cpdef unsigned char getBit(self, uint8_t bitNumber): return (self.value >> bitNumber) & 1 def toHex(self): if self.mask == 0xFF: return "%02X" % self.value elif self.mask == 0xFFFF: return "%04X" % self.value elif self.mask == 0xFFFFFFFF: return "%08X" % self.value else: assert(0) class GenericWord(GenericInteger): #+cdef __slots__ = () def __init__(self, value=0): GenericInteger.__init__(self, value, 16) class GenericDWord(GenericInteger): #+cdef __slots__ = () def __init__(self, value=0): GenericInteger.__init__(self, value, 32) class ByteArray(bytearray): """Generic memory representation.""" # Memory fetch operation. # This method returns the data (bit, byte, word, dword, etc...) for # a given memory region of this byte array. # offset => An AwlOffset() that specifies the region to fetch from. # width => An integer specifying the width (in bits) to fetch. # Returns an int for small widths (<= 32 bits) and a memoryview # for larger widths. def fetch(self, offset, width): #@nocy #@cy def fetch(self, object offset, uint32_t width): #@cy cdef uint32_t byteOffset try: byteOffset = offset.byteOffset if width == 1: return (self[byteOffset] >> offset.bitOffset) & 1 elif width == 8: return self[byteOffset] elif width == 16: return (self[byteOffset] << 8) |\ self[byteOffset + 1] elif width == 32: return (self[byteOffset] << 24) |\ (self[byteOffset + 1] << 16) |\ (self[byteOffset + 2] << 8) |\ self[byteOffset + 3] else: assert(not offset.bitOffset) nrBytes = intDivRoundUp(width, 8) end = byteOffset + nrBytes if end > len(self): raise IndexError return memoryview(self)[byteOffset : end] except IndexError as e: raise AwlSimError("fetch: Operator offset '%s' out of range" %\ str(offset)) # Memory store operation. # This method stores data (bit, byte, word, dword, etc...) to # a given memory region of this byte array. # offset => An AwlOffset() that specifies the region to store to. # width => An integer specifying the width (in bits) to store. # value => The value to store. # May be an int, ByteArray, bytearray, bytes or compatible. def store(self, offset, width, value): #@nocy #@cy def store(self, object offset, uint32_t width, object value): #@cy cdef uint32_t byteOffset try: byteOffset = offset.byteOffset if isInteger(value): if width == 1: if value: self[byteOffset] |= 1 << offset.bitOffset else: self[byteOffset] &= ~(1 << offset.bitOffset) else: while width: width -= 8 self[byteOffset] = (value >> width) & 0xFF byteOffset += 1 else: if width == 1: if value[0] & 1: self[byteOffset] |= 1 << offset.bitOffset else: self[byteOffset] &= ~(1 << offset.bitOffset) else: nrBytes = intDivRoundUp(width, 8) assert(nrBytes == len(value)) end = byteOffset + nrBytes if end > len(self): raise IndexError self[byteOffset : end] = value except IndexError as e: raise AwlSimError("store: Operator offset '%s' out of range" %\ str(offset)) def __repr__(self): ret = [ 'ByteArray(b"', ] for b in self: ret.append("\\x%02X" % b) ret.append('")') return "".join(ret) def __str__(self): return self.__repr__() class Pointer(GenericDWord): #+cdef """Pointer value. The basic data type (GenericDWord) holds the pointer value and the area code.""" AREA_SHIFT = 24 AREA_MASK = 0xFF AREA_MASK_S = AREA_MASK << AREA_SHIFT AREA_P = 0x80 # Peripheral area AREA_E = 0x81 # Input AREA_A = 0x82 # Output AREA_M = 0x83 # Flags AREA_DB = 0x84 # Global datablock AREA_DI = 0x85 # Instance datablock AREA_L = 0x86 # Localstack AREA_VL = 0x87 # Parent localstack # Convert an area code to string area2str = { AREA_P : "P", AREA_E : "E", AREA_A : "A", AREA_M : "M", AREA_DB : "DBX", AREA_DI : "DIX", AREA_L : "L", AREA_VL : "V", } # Width, in bits. width = 32 __slots__ = () def __init__(self, ptrValue = 0): GenericDWord.__init__(self, ptrValue) # Get the pointer (32 bit). def toPointer(self): #@nocy #@cy cpdef toPointer(self): return Pointer(self.toPointerValue()) # Get the 32 bit pointer value. toPointerValue = GenericDWord.get #@nocy #@cy cpdef uint32_t toPointerValue(self): #@cy return self.get() # Get the pointer as DB-pointer (48 bit). def toDBPointer(self): #@nocy #@cy cpdef toDBPointer(self): return DBPointer(self.toPointerValue()) # Get the DB-pointer value (48 bit). def toDBPointerValue(self): #@nocy #@cy cpdef uint64_t toDBPointerValue(self): return self.toDBPointer().toDBPointerValue() # Get the pointer as ANY-pointer (80 bit). def toANYPointer(self): #@nocy #@cy cpdef ANYPointer toANYPointer(self): return ANYPointer(self.toPointerValue()) # Get the ANY-pointer value (80 bit). def toANYPointerValue(self): #@nocy #@cy cpdef object toANYPointerValue(self): return self.toANYPointer().toANYPointerValue() # Get the native pointer value for this type. toNativePointerValue = toPointerValue #@nocy #@cy cpdef object toNativePointerValue(self): #@cy return self.toPointerValue() # Get the area code, as byte. def getArea(self): #@nocy #@cy cpdef uint8_t getArea(self): return (self.toPointerValue() >> 24) & 0xFF # Set the area code, as byte. def setArea(self, newArea): #@nocy #@cy cpdef setArea(self, uint8_t newArea): self.set((self.get() & 0x00FFFFFF) | (newArea << 24)) # Get the byte offset, as word. def getByteOffset(self): #@nocy #@cy cpdef uint16_t getByteOffset(self): return (self.toPointerValue() >> 3) & 0xFFFF # Get the bit offset, as byte. def getBitOffset(self): #@nocy #@cy cpdef uint8_t getBitOffset(self): return self.toPointerValue() & 7 # Get a P#... string for this pointer. def toPointerString(self): area = self.getArea() if area: if area == self.AREA_P: prefix = "P " elif area == self.AREA_E: prefix = "E " elif area == self.AREA_A: prefix = "A " elif area == self.AREA_M: prefix = "M " elif area == self.AREA_DB: prefix = "DBX " elif area == self.AREA_DI: prefix = "DIX " elif area == self.AREA_L: prefix = "L " elif area == self.AREA_VL: prefix = "V " else: prefix = "(%02X) " % area else: prefix = "" return "P#%s%d.%d" % (prefix, self.getByteOffset(), self.getBitOffset()) def __repr__(self): return self.toPointerString() class DBPointer(Pointer): #+cdef """DB-Pointer value. The basic data type (Pointer) holds the pointer value and the area code. The DB number is stored separately in 'dbNr'.""" __slots__ = ( "dbNr", ) #@cy cdef public uint16_t dbNr # Width, in bits. width = 48 def __init__(self, ptrValue = 0, dbNr = 0): Pointer.__init__(self, ptrValue) self.dbNr = dbNr or 0 # Get the pointer as DB-pointer (48 bit). def toDBPointer(self): #@nocy #@cy cpdef toDBPointer(self): return DBPointer(self.toPointerValue(), self.dbNr) # Get the DB-pointer value (48 bit). def toDBPointerValue(self): #@nocy return (self.dbNr << 32) | self.toPointerValue() #@nocy #@cy cpdef uint64_t toDBPointerValue(self): #@cy cdef uint64_t dbNr #@cy dbNr = self.dbNr #@cy return (dbNr << 32) | self.toPointerValue() # Get the pointer as ANY-pointer (80 bit). def toANYPointer(self): #@nocy #@cy cpdef ANYPointer toANYPointer(self): return ANYPointer(self.toPointerValue(), self.dbNr) # Get the native pointer value for this type. toNativePointerValue = toDBPointerValue #@nocy #@cy cpdef object toNativePointerValue(self): #@cy return self.toDBPointerValue() # Get a P#... string for this pointer. def toPointerString(self): if self.dbNr: assert(self.dbNr > 0 and self.dbNr <= 0xFFFF) if self.getArea() == self.AREA_DB: prefix = "DB%d.DBX " % self.dbNr else: prefix = "DB%d.(%02X) " % (self.dbNr, self.getArea()) else: return Pointer.toPointerString(self) return "P#%s%d.%d" % (prefix, self.getByteOffset(), self.getBitOffset()) class SymbolicDBPointer(DBPointer): #+cdef """Symbolic DB-Pointer value. This is a non-standard awlsim extension. Example: P#DB100.ARRAYVAR[1].ELEMENT Example with symbolic DB: P#"MyData".ARRAYVAR[1].ELEMENT """ __slots__ = ( "identChain", "dbSymbol", ) #@cy cdef public object identChain #@cy cdef public object dbSymbol # Width, in bits. width = -1 # Unknown width def __init__(self, ptrValue = 0, dbNr = 0, identChain = None, dbSymbol = None): DBPointer.__init__(self, ptrValue, dbNr) self.identChain = identChain self.dbSymbol = dbSymbol # Get a P#... string for this pointer. def toPointerString(self): if self.dbSymbol or self.dbNr: if self.dbSymbol: prefix = '"%s".' % self.dbSymbol else: prefix = "DB%d." % self.dbNr if self.identChain: return "P#%s%s" % (prefix, self.identChain.getString()) else: if self.getArea() == self.AREA_DB: prefix += "DBX " else: prefix += "(%02X) " % self.getArea() return "P#%s%d.%d" % (prefix, self.getByteOffset(), self.getBitOffset()) else: assert(not self.identChain) return Pointer.toPointerString(self) class ANYPointer(DBPointer): #+cdef """ANY-Pointer value. The basic data type (DBPointer) holds the pointer value, the area code and the DB number. The data type is stored in 'dataType' as AwlDataType object. The count is stored in 'count'.""" __slots__ = ( "dataType", "count", ) #@cy cdef public object dataType #@cy cdef public uint16_t count # AwlDataType to ANY-Pointer type code. __typeId2typeCode = { AwlDataType.TYPE_NIL : 0x00, AwlDataType.TYPE_BOOL : 0x01, AwlDataType.TYPE_BYTE : 0x02, AwlDataType.TYPE_CHAR : 0x03, AwlDataType.TYPE_WORD : 0x04, AwlDataType.TYPE_INT : 0x05, AwlDataType.TYPE_DWORD : 0x06, AwlDataType.TYPE_DINT : 0x07, AwlDataType.TYPE_REAL : 0x08, AwlDataType.TYPE_DATE : 0x09, AwlDataType.TYPE_TOD : 0x0A, AwlDataType.TYPE_TIME : 0x0B, AwlDataType.TYPE_S5T : 0x0C, AwlDataType.TYPE_DT : 0x0E, AwlDataType.TYPE_STRING : 0x13, AwlDataType.TYPE_BLOCK_FB : 0x17, AwlDataType.TYPE_BLOCK_FC : 0x18, AwlDataType.TYPE_BLOCK_DB : 0x19, AwlDataType.TYPE_BLOCK_SDB : 0x1A, AwlDataType.TYPE_COUNTER : 0x1C, AwlDataType.TYPE_TIMER : 0x1D, } # ANY-Pointer type code to AwlDataType. __typeCode2typeId = pivotDict(__typeId2typeCode) # Width, in bits. width = 80 # Make an ANYPointer instance based on the data area width (in bits). # Automatically selects an appropriate data type and count. @classmethod def makeByTypeWidth(cls, bitWidth, ptrValue = 0, dbNr = 0): if bitWidth % 32 == 0: dataType = AwlDataType.makeByName("DWORD") count = bitWidth // 32 elif bitWidth % 16 == 0: dataType = AwlDataType.makeByName("WORD") count = bitWidth // 16 elif bitWidth % 8 == 0: dataType = AwlDataType.makeByName("BYTE") count = bitWidth // 8 else: dataType = AwlDataType.makeByName("BOOL") count = bitWidth return cls(ptrValue = ptrValue, dbNr = dbNr, dataType = dataType, count = count) # Create an ANY pointer to a typed data field. # Select the right ANY data type automatically. @classmethod def makeByAutoType(cls, dataType, ptrValue = 0, dbNr = 0): if dataType.type == AwlDataType.TYPE_ARRAY and\ cls.dataTypeIsSupported(dataType.arrayElementType): return cls(ptrValue = ptrValue, dbNr = dbNr, dataType = dataType.arrayElementType, count = dataType.arrayGetNrElements()) elif cls.dataTypeIsSupported(dataType): return cls(ptrValue = ptrValue, dbNr = dbNr, dataType = dataType, count = 1) else: return cls.makeByTypeWidth(bitWidth = dataType.width, ptrValue = ptrValue, dbNr = dbNr) # Check whether ANY supports the data type. @classmethod def dataTypeIsSupported(cls, dataType): return dataType and\ dataType.type in cls.__typeId2typeCode def __init__(self, ptrValue = 0, dbNr = 0, dataType = None, count = 1): DBPointer.__init__(self, ptrValue, dbNr) if not dataType: dataType = AwlDataType.makeByName("NIL") if not self.dataTypeIsSupported(dataType): raise AwlSimError("Data type '%s' is not allowed " "in ANY pointers." % str(dataType)) self.dataType = dataType self.count = count # Get the pointer as ANY-pointer (80 bit). def toANYPointer(self): #@nocy #@cy cpdef ANYPointer toANYPointer(self): return ANYPointer(self.toPointerValue(), self.dbNr, self.dataType, self.count) # Get the ANY-pointer value (80 bit). def toANYPointerValue(self): #@nocy #@cy cpdef object toANYPointerValue(self): # Byte layout: 0x10, typeCode, # countHi, countLo, # dbHi, dbLo, # area, ptrHi, ptrMid, ptrLo try: count = self.count dbNr = self.dbNr ptr = self.toPointerValue() return ByteArray((0x10, self.__typeId2typeCode[self.dataType.type], (count >> 8) & 0xFF, count & 0xFF, (dbNr >> 8) & 0xFF, dbNr & 0xFF, (ptr >> 24) & 0xFF, (ptr >> 16) & 0xFF, (ptr >> 8) & 0xFF, ptr & 0xFF)) except KeyError as e: raise AwlSimError("Can not convert data type '%s' to " "ANY pointer." %\ str(self.dataType)) # Get the native pointer value for this type. toNativePointerValue = toANYPointerValue #@nocy #@cy cpdef object toNativePointerValue(self): #@cy return self.toANYPointerValue() # Get a P#... string for this pointer. def toPointerString(self): dbStr = "" if self.dbNr: dbStr = "DB%d." % self.dbNr try: areaStr = self.area2str[self.getArea()] except KeyError as e: areaStr = "(%02X)" % self.getArea() return "P#%s%s %d.%d %s %d" %\ (dbStr, areaStr, self.getByteOffset(), self.getBitOffset(), str(self.dataType), self.count) class Accu(GenericDWord): #+cdef "Accumulator register" __slots__ = () def __init__(self): GenericDWord.__init__(self) class Adressregister(Pointer): #+cdef "Address register" __slots__ = () def __init__(self): Pointer.__init__(self)