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/*
* Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
*
* 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);
}
}
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