x86/sem: fix SHL (handle 0-round case)

1 files changed, 1 insertions, 13 deletions

diff --git a/miasm2/arch/x86/sem.py b/miasm2/arch/x86/sem.py
index 5bf4a7a1..521062c5 100644
--- a/miasm2/arch/x86/sem.py
+++ b/miasm2/arch/x86/sem.py
@@ -605,19 +605,7 @@ def sal(ir, instr, a, b):
 
 
 def shl(ir, instr, a, b):
-    e = []
-    shifter = get_shift(a, b)
-    c = a << shifter
-    new_cf = (a >> (m2_expr.ExprInt_from(a, a.size) - shifter))[:1]
-    e.append(m2_expr.ExprAff(cf, m2_expr.ExprCond(shifter,
-                                  new_cf,
-                                  cf)
-                     )
-             )
-    e += update_flag_znp(c)
-    e.append(m2_expr.ExprAff(of, c.msb() ^ new_cf))
-    e.append(m2_expr.ExprAff(a, c))
-    return e, []
+    return _shift_tpl("<<", ir, instr, a, b, left=True)
 
 
 def shld_cl(ir, instr, a, b):