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# -*- coding: utf-8 -*-
#
# AWL data types
# Copyright 2012 Michael Buesch <m@bues.ch>
#
# Licensed under the terms of the GNU General Public License version 2.
#
from util import *
class GenericInteger(object):
def __init__(self, value, mask):
self.value = value
self.mask = mask
assert(mask <= 0xFFFFFFFF)
def set(self, value):
self.value = value & self.mask
def setByte(self, value):
self.value = ((self.value & 0xFFFFFF00) |\
(value & 0xFF)) &\
self.mask
def setWord(self, value):
self.value = ((self.value & 0xFFFF0000) |\
(value & 0xFFFF)) &\
self.mask
def setDWord(self, value):
self.value = value & 0xFFFFFFFF & self.mask
def get(self):
return self.value
def getByte(self):
return self.value & 0xFF
def getWord(self):
return self.value & 0xFFFF
def getDWord(self):
return self.value & 0xFFFFFFFF
def getSignedByte(self):
return byteToSignedPyInt(self.value)
def getSignedWord(self):
return wordToSignedPyInt(self.value)
def getSignedDWord(self):
return dwordToSignedPyInt(self.value)
def setBit(self, bitNumber):
self.value = (self.value | (1 << bitNumber)) & self.mask
def clearBit(self, bitNumber):
self.value &= ~(1 << bitNumber)
def setBitValue(self, bitNumber, value):
if value:
self.setBit(bitNumber)
else:
self.clearBit(bitNumber)
def getBit(self, bitNumber):
return 1 if (self.value & (1 << bitNumber)) else 0
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 GenericByte(GenericInteger):
def __init__(self, value=0):
GenericInteger.__init__(self, value, 0xFF)
class GenericWord(GenericInteger):
def __init__(self, value=0):
GenericInteger.__init__(self, value, 0xFFFF)
class GenericDWord(GenericInteger):
def __init__(self, value=0):
GenericInteger.__init__(self, value, 0xFFFFFFFF)
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