diff options
Diffstat (limited to 'decoders/parallel/pd.py')
| -rw-r--r-- | decoders/parallel/pd.py | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/decoders/parallel/pd.py b/decoders/parallel/pd.py index 4c09d86..593b39b 100644 --- a/decoders/parallel/pd.py +++ b/decoders/parallel/pd.py @@ -92,7 +92,6 @@ class Decoder(srd.Decoder): def reset(self): self.items = [] - self.itemcount = 0 self.saved_item = None self.ss_item = self.es_item = None self.first = True @@ -115,17 +114,15 @@ class Decoder(srd.Decoder): self.put(self.ss_word, self.es_word, self.out_ann, data) def handle_bits(self, datapins): - # If this is the first item in a word, save its sample number. - if self.itemcount == 0: - self.ss_word = self.samplenum - # Get the bits for this item. item, used_pins = 0, datapins.count(1) + datapins.count(0) for i in range(used_pins): item |= datapins[i] << i + # Save the item, and its sample number if it's the first part of a word. + if not self.items: + self.ss_word = self.samplenum self.items.append(item) - self.itemcount += 1 if self.first: # Save the start sample and item for later (no output yet). @@ -140,26 +137,27 @@ class Decoder(srd.Decoder): self.ss_item = self.samplenum self.saved_item = item - endian, ws = self.options['endianness'], self.options['wordsize'] - # Get as many items as the configured wordsize says. - if self.itemcount < ws: + ws = self.options['wordsize'] + if len(self.items) < ws: return # Output annotations/python for a word (a collection of items). + # NOTE that this feature is currently not effective. The emission + # of Python annotations is commented out. + endian = self.options['endianness'] + if endian == 'little': + self.items.reverse() word = 0 for i in range(ws): - if endian == 'little': - word |= self.items[i] << ((ws - 1 - i) * used_pins) - elif endian == 'big': - word |= self.items[i] << (i * used_pins) + word |= self.items[i] << (i * used_pins) self.es_word = self.samplenum # self.putpw(['WORD', word]) # self.putw([1, ['%X' % word]]) self.ss_word = self.samplenum - self.itemcount, self.items = 0, [] + self.items = [] def decode(self): for i in range(len(self.optional_channels)): |