/*
JPC: An x86 PC Hardware Emulator for a pure Java Virtual Machine
Copyright (C) 2012-2013 Ian Preston
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Details (including contact information) can be found at:
jpc.sourceforge.net
or the developer website
sourceforge.net/projects/jpc/
End of licence header
*/
package org.jpc.emulator.execution.opcodes.pm;
import org.jpc.emulator.execution.*;
import org.jpc.emulator.execution.decoder.*;
import org.jpc.emulator.processor.*;
import org.jpc.emulator.processor.fpu64.*;
import static org.jpc.emulator.processor.Processor.*;
public class popfd extends Executable
{
public popfd(int blockStart, int eip, int prefices, PeekableInputStream input)
{
super(blockStart, eip);
}
public Branch execute(Processor cpu)
{
if (cpu.getCPL() == 0)
cpu.setEFlags(((cpu.getEFlags() & 0x20000) | (cpu.pop32() & ~(0x20000 | 0x180000))));
else {
if (cpu.getCPL() > cpu.eflagsIOPrivilegeLevel)
cpu.setEFlags(((cpu.getEFlags() & 0x23200) | (cpu.pop32() & ~(0x23200 | 0x180000))));
else
cpu.setEFlags(((cpu.getEFlags() & 0x23000) | (cpu.pop32() & ~(0x23000 | 0x180000))));
}
return Branch.None;
}
public boolean isBranch()
{
return false;
}
public String toString()
{
return this.getClass().getName();
}
}