Terms and Definitions Formal Parameters:specified(together with type)when procedure is declared (a.k.a.formals) Actual Parameters:values which are passed to a procedure at call site (a.k.a.actuals) I-value:storage location represented by an expression (e.g.a register,a memory location,etc) r-value:value contained at the storage location ·I-andr-refer to the“left”and“right"side of an assignment int factorial((nt n) formal if (n =0)return 1; else return n factorial(n 1) } actual factorial(42) CS308 Compiler Theory 2Terms and Definitions • Formal Parameters: specified (together with type) when procedure is d l d( k dec lare d (a. k.a. f l orma ls ) • Actual Parameters: values which are passed to a procedure at call site ( k a. k.a. act l ua ls ) • l-value: storage location represented by an expression (e.g. a register, a memory location etc) memory location, etc) • r-value: value contained at the storage location • l - and r - refer to the refer to the “left ” and “right ” side of an assignment side of an assignment int factorial(int n) { if (n == 0) return 1; else return n * factorial(n - 1); formal } … actual 2 factorial(42); CS308 Compiler Theory