/* * Copyright (c) 2016 Thomas Pornin * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ using System; using System.Collections.Generic; class OpcodeCall : Opcode { Word target; internal OpcodeCall() : this(null) { } internal OpcodeCall(Word target) { this.target = target; } internal override void ResolveTarget(Word target) { if (this.target != null) { throw new Exception("Opcode already resolved"); } this.target = target; } internal override void Run(CPU cpu) { target.Run(cpu); } internal override Word GetReference(T0Comp ctx) { if (target == null) { throw new Exception("Unresolved call target"); } return target; } internal override CodeElement ToCodeElement() { return new CodeElementUInt((uint)target.Slot); } public override string ToString() { return "call " + (target == null ? "UNRESOLVED" : target.Name); } }