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-rw-r--r--miasm2/arch/aarch64/arch.py6
1 files changed, 4 insertions, 2 deletions
diff --git a/miasm2/arch/aarch64/arch.py b/miasm2/arch/aarch64/arch.py
index 7c8f22ef..fc481698 100644
--- a/miasm2/arch/aarch64/arch.py
+++ b/miasm2/arch/aarch64/arch.py
@@ -1066,11 +1066,13 @@ class aarch64_gpreg_sftimm(reg_noarg, m_arg):
 
 
 def ror(value, amount, size):
-    return (value >> amount) | (value << (size - amount))
+    mask = (1 << size) - 1
+    return ((value >> amount) | (value << (size - amount))) & mask
 
 
 def rol(value, amount, size):
-    return (value << amount) | (value >> (size - amount))
+    mask = (1 << size) - 1
+    return ((value << amount) | (value >> (size - amount)) & mask)
 
 UINTS = {32: uint32, 64: uint64}