Convert to src-layout ta/nix

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diff --git a/src/miasm/arch/mep/lifter_model_call.py b/src/miasm/arch/mep/lifter_model_call.py
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+++ b/src/miasm/arch/mep/lifter_model_call.py
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+# Toshiba MeP-c4 - miasm IR analysis
+# Guillaume Valadon <guillaume@valadon.net>
+
+from miasm.arch.mep.sem import Lifter_MEPb, Lifter_MEPl
+from miasm.ir.analysis import LifterModelCall
+
+
+class LifterModelCallMepb(Lifter_MEPb, LifterModelCall):
+    """MeP high level IR manipulations - Big Endian
+
+    Notes:
+        - it is mandatory for symbolic execution.
+    """
+
+    def __init__(self, loc_db):
+        Lifter_MEPb.__init__(self, loc_db)
+        self.ret_reg = self.arch.regs.R0
+
+    # Note: the following are abstract method and must be implemented
+    def sizeof_char(self):
+        "Return the size of a char in bits"
+        return 8
+
+    def sizeof_short(self):
+        "Return the size of a short in bits"
+        return 16
+
+    def sizeof_int(self):
+        "Return the size of an int in bits"
+        return 32
+
+    def sizeof_long(self):
+        "Return the size of a long in bits"
+        return 32
+
+    def sizeof_pointer(self):
+        "Return the size of a void* in bits"
+        return 32
+
+
+class LifterModelCallMepl(Lifter_MEPl, LifterModelCallMepb):
+    """MeP high level IR manipulations - Little Endian"""
+
+    def __init__(self, loc_db):
+        LifterModelCallMepb.__init__(self, loc_db)