Copyright (C) 1994, Digital Equipment Corp.File: WordNot.m3 Last Modified On Mon Dec 5 15:30:45 PST 1994 By kalsow Modified On Tue Apr 10 11:15:33 1990 By muller
MODULE; IMPORT CG, CallExpr, Expr, ExprRep, Procedure, Target, TWord; IMPORT Int, IntegerExpr, Value, Formal, ProcType; VAR Z: CallExpr.MethodList; VAR formals: Value.T; PROCEDURE WordNot Check (ce: CallExpr.T; VAR cs: Expr.CheckState) = BEGIN EVAL Formal.CheckArgs (cs, ce.args, formals, ce.proc); ce.type := Int.T; END Check; PROCEDURECompile (ce: CallExpr.T) = BEGIN Expr.Compile (ce.args[0]); CG.Not (); END Compile; PROCEDUREFold (ce: CallExpr.T): Expr.T = VAR e: Expr.T; w, result: Target.Int; BEGIN e := Expr.ConstValue (ce.args[0]); IF (e # NIL) AND IntegerExpr.Split (e, w) THEN TWord.Not (w, result); RETURN IntegerExpr.New (result); ELSE RETURN NIL; END; END Fold; PROCEDUREInitialize () = VAR f0 := Formal.NewBuiltin ("x", 0, Int.T); t := ProcType.New (Int.T, f0); BEGIN Z := CallExpr.NewMethodList (1, 1, TRUE, TRUE, TRUE, Int.T, NIL, CallExpr.NotAddressable, Check, CallExpr.PrepArgs, Compile, CallExpr.NoLValue, CallExpr.NoLValue, CallExpr.NotBoolean, CallExpr.NotBoolean, Fold, CallExpr.IsNever, (* writable *) CallExpr.IsNever, (* designator *) CallExpr.NotWritable (* noteWriter *)); Procedure.Define ("Not", Z, FALSE, t); formals := ProcType.Formals (t); END Initialize; BEGIN END WordNot.