Refactorize ASN visit

Author: boriel

arch/zx48k/translator.py

@@ -1236,8 +1236,8 @@ def visit_TAN(self, node):
         self.REQUIRES.add('tan.asm')
 
     def visit_ASN(self, node):
-        self.emit('fparam' + self.TSUFFIX(node.operand.type_), node.operand.t)
-        self.emit('call', 'ASIN', node.size)
+        self.ic_fparam(node.operand.type_, node.operand.t)
+        self.ic_call('ASIN', node.size)
         self.REQUIRES.add('asin.asm')
 
     def visit_ACS(self, node):