// opcode 0xEB
public static void short_jump(Emulator emu)
{
SByte diff = (SByte)emu.getSignedCode8(1);
emu.eip += (UInt32)(diff + 2);
}
private static void inc_rm32(Emulator emu, ModRM modrm)
{
UInt32 value = modrm.get_rm32(emu);
modrm.set_rm32(emu, value + 1);
}
// opcode 0xE9
public static void near_jump(Emulator emu)
{
Int32 diff = emu.getSignedCode32(1);
emu.eip += (UInt32)(diff + 5);
}
// opcode 0xC3
public static void ret(Emulator emu)
{
emu.eip = emu.pop32();
}
// opcode 0x7E
public static void jle(Emulator emu)
{
int diff = emu.eflags.HasFlag(Eflags.ZERO) || (emu.eflags.HasFlag(Eflags.SIGN) != emu.eflags.HasFlag(Eflags.OVERFLOW)) ? emu.getSignedCode8(1) : 0;
emu.eip += (uint)(diff + 2);
}
// opcode 0x79
public static void jns(Emulator emu)
{
int diff = emu.eflags.HasFlag(Eflags.SIGN) ? 0 : emu.getSignedCode8(1);
emu.eip += (uint)(diff + 2);
}
// opcode 0x74
public static void jz(Emulator emu)
{
int diff = emu.eflags.HasFlag(Eflags.ZERO) ? emu.getSignedCode8(1) : 0;
emu.eip += (uint)(diff + 2);
}