test/test_bitslip: simplify BitSlipModel

2017-02-10 13:18:04 +01:00 · 2017-02-10 13:18:04 +01:00 · 98d9f1ffc0
parent cd83448f8e
commit 98d9f1ffc0
1 changed files with 4 additions and 3 deletions
--- a/test/test_bitslip.py
+++ b/test/test_bitslip.py
@ -19,8 +19,9 @@ class BitSlipModel:
        # simulate bitslip
        r = []
        for i in range(len(s)-1):
-            v = (s[i+1] & (2**bitslip-1)) << (self.data_width-bitslip)
-            v |= (s[i] >> bitslip) & (2**(self.data_width-bitslip)-1)
+            v = (s[i+1] << self.data_width) | s[i]
+            v = v >> bitslip
+            v &= 2**self.data_width-1
            r.append(v)
        return r