BearSSL/T0/OpcodeJumpIf.cs

66 lines
1.7 KiB
C#

/*
* 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 OpcodeJumpIf : OpcodeJump {
internal OpcodeJumpIf() : base()
{
}
internal OpcodeJumpIf(int disp) : base(disp)
{
}
internal override void Run(CPU cpu)
{
TValue v = cpu.Pop();
if (v.Bool) {
base.Run(cpu);
}
}
internal override int StackAction {
get {
return -1;
}
}
internal override CodeElement ToCodeElement()
{
return new CodeElementJump(5);
}
public override string ToString()
{
if (JumpDisp == Int32.MinValue) {
return "jumpif UNRESOLVED";
} else {
return "jumpif disp=" + JumpDisp;
}
}
}