def splitOnWords(self, transaction, addrOffset=0):
"""
:return: generator of TransPart instance
"""
wordWidth = self.wordWidth
end = addrOffset
for tmp in transaction.walkFlatten(offset=addrOffset):
if isinstance(tmp, OneOfTransaction):
# unions
split = [
self.splitOnWords(ch, end)
for ch in tmp.possibleTransactions
]
yield from groupIntoChoices(split, wordWidth, tmp)
end = addrOffset + tmp.possibleTransactions[0].bitAddrEnd
else:
# constant size types
(base, end), tmpl = tmp
startOfPart = base
while startOfPart != end:
wordIndex = startOfPart // wordWidth
endOfWord = (wordIndex + 1) * wordWidth
endOfPart = min(endOfWord, end)
inFieldOffset = startOfPart - base
yield TransPart(self, tmpl, False, startOfPart, endOfPart,
inFieldOffset)
startOfPart = endOfPart
def splitOnWords(self, transaction, addrOffset=0):
"""
:return: generator of TransPart instance
"""
wordWidth = self.wordWidth
end = addrOffset
for tmp in transaction.walkFlatten(offset=addrOffset):
if isinstance(tmp, OneOfTransaction):
split = [
self.splitOnWords(ch, end)
for ch in tmp.possibleTransactions
]
yield from groupIntoChoices(split, wordWidth, tmp)
end = addrOffset + tmp.possibleTransactions[0].bitAddrEnd
elif isinstance(tmp, StreamTransaction):
ch_len = tmp.child.bit_length()
if end % self.wordWidth != 0 or ch_len != self.wordWidth:
# assert start, end is aligned
raise NotImplementedError(tmp)
else:
s = StreamOfFramePars(end, tmp)
s.extend(self.splitOnWords(tmp.child, end))
s.setIsLast(True)
s.resolveEnd()
yield s
end = addrOffset + tmp.child.bitAddrEnd
else:
(base, end), tmpl = tmp
startOfPart = base
while startOfPart != end:
wordIndex = startOfPart // wordWidth
endOfWord = (wordIndex + 1) * wordWidth
endOfPart = min(endOfWord, end)
inFieldOffset = startOfPart - base
yield TransPart(self, tmpl, startOfPart, endOfPart,
inFieldOffset)
startOfPart = endOfPart
def getInDataSignal(self, transPart: TransPart):
busDataSignal = self.dataIn.data
high, low = transPart.getBusWordBitRange()
return busDataSignal[high:low]
def walkWords(self, showPadding: bool=False):
"""
Walk enumerated words in this frame
:attention: not all indexes has to be present, only words
with items will be generated when not showPadding
:param showPadding: padding TransParts are also present
:return: generator of tuples (wordIndex, list of TransParts
in this word)
"""
wIndex = 0
lastEnd = self.startBitAddr
parts = []
for p in self.parts:
end = p.startOfPart
if showPadding and end != lastEnd:
# insert padding before data
while end != lastEnd:
assert end >= lastEnd, (end, lastEnd)
endOfWord = ceil(
(lastEnd + 1) / self.wordWidth) * self.wordWidth
endOfPadding = min(endOfWord, end)
_p = TransPart(self, None, False, lastEnd, endOfPadding, 0)
parts.append(_p)
if endOfPadding >= endOfWord:
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = endOfPadding
if self._wordIndx(lastEnd) != self._wordIndx(p.startOfPart):
# if input data continues to a next word, yield current word
# and start processing next one
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = p.endOfPart
parts.append(p)
lastEnd = p.endOfPart
if lastEnd % self.wordWidth == 0:
# if we can not add anything to this word,
# yield it directly and continue on next word
yield (wIndex, parts)
wIndex += 1
parts = []
if showPadding and (parts
or lastEnd != self.endBitAddr
or lastEnd % self.wordWidth != 0):
# align end to end of last word
end = ceil(self.endBitAddr / self.wordWidth) * self.wordWidth
# padding is non removable if it is part of data
# and it is removable if it was generated by frame alignment
endOfNonRemovablePadding = self.origin.bitAddrEnd
while end != lastEnd:
assert end >= lastEnd, (end, lastEnd)
endOfWord = ((lastEnd // self.wordWidth) + 1) * self.wordWidth
endOfPadding = min(endOfWord, end)
if lastEnd < endOfNonRemovablePadding:
endOfPadding = min(endOfPadding, endOfNonRemovablePadding)
can_be_removed = False
else:
can_be_removed = True
_p = TransPart(self, None, can_be_removed,
lastEnd, endOfPadding, 0)
_p.parent = self
parts.append(_p)
if endOfPadding >= endOfWord:
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = endOfPadding
if parts:
# in the case end of frame is not aligned to end of word
yield (wIndex, parts)
def walkWords(self, showPadding: bool = False):
"""
Walk enumerated words in this frame
:attention: not all indexes has to be present, only words
with items will be generated when not showPadding
:param showPadding: padding TransParts are also present
:return: generator of tuples (wordIndex, list of TransParts
in this word)
"""
wIndex = 0
lastEnd = self.startBitAddr
parts = []
for p in self.parts:
end = p.startOfPart
if showPadding and end != lastEnd:
# insert padding
while end != lastEnd:
assert end >= lastEnd, (end, lastEnd)
endOfWord = ceil(
(lastEnd + 1) / self.wordWidth) * self.wordWidth
endOfPadding = min(endOfWord, end)
_p = TransPart(self, None, lastEnd, endOfPadding, 0)
parts.append(_p)
if endOfPadding >= endOfWord:
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = endOfPadding
if self._wordIndx(lastEnd) != self._wordIndx(p.startOfPart):
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = p.endOfPart
parts.append(p)
lastEnd = p.endOfPart
if lastEnd % self.wordWidth == 0:
yield (wIndex, parts)
wIndex += 1
parts = []
if showPadding and (parts or lastEnd != self.endBitAddr
or lastEnd % self.wordWidth != 0):
# align end to end of last word
end = ceil(self.endBitAddr / self.wordWidth) * self.wordWidth
while end != lastEnd:
assert end >= lastEnd, (end, lastEnd)
endOfWord = ((lastEnd // self.wordWidth) + 1) * self.wordWidth
endOfPadding = min(endOfWord, end)
_p = TransPart(self, None, lastEnd, endOfPadding, 0)
_p.parent = self
parts.append(_p)
if endOfPadding >= endOfWord:
yield (wIndex, parts)
wIndex += 1
parts = []
lastEnd = endOfPadding
if parts:
# in the case end of frame is not aligned to end of word
yield (wIndex, parts)