X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fcommon%2Fsrdhelper%2Fmod.py;fp=decoders%2Fcommon%2Fsrdhelper%2Fmod.py;h=b56cce6df3dbb2385136f462ac7af45fc11e706c;hp=6c45af98b7ae9232b8d115caafa6478801436d20;hb=4a3c854ca958340507eb69adaaeaf31c6e678df6;hpb=bd7efe23c7a2e6c6698a3652fc0ce0a0d5dab156

diff --git a/decoders/common/srdhelper/mod.py b/decoders/common/srdhelper/mod.py
index 6c45af9..b56cce6 100644
--- a/decoders/common/srdhelper/mod.py
+++ b/decoders/common/srdhelper/mod.py
@@ -31,6 +31,20 @@ def bin2int(s: str):
 def bitpack(bits):
     return sum([b << i for i, b in enumerate(bits)])
 
+def bitpack_lsb(bits, idx=None):
+    '''Conversion from LSB first bit sequence to integer.'''
+    if idx is not None:
+        bits = [b[idx] for b in bits]
+    return bitpack(bits)
+
+def bitpack_msb(bits, idx=None):
+    '''Conversion from MSB first bit sequence to integer.'''
+    bits = bits[:]
+    if idx is not None:
+        bits = [b[idx] for b in bits]
+    bits.reverse()
+    return bitpack(bits)
+
 def bitunpack(num, minbits=0):
     res = []
     while num or minbits > 0: