perf(effects): use faster operations

P403n1x87 · Nov 27, 2021 · 4e4a335 · 4e4a335
1 parent 11ac329
commit 4e4a335
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/bytecode/effects.py b/bytecode/effects.py
@@ -91,7 +91,7 @@
 
 def stack_effect(opcode, oparg=None, jump=None):
     def nargs(o):
-        return int((o % 256) + 2 * (o / 256))
+        return (o & 255) + ((o >> 7) & -2)
 
     oparg = oparg or 0
     # TODO: Can add check for when oparg is required