Set addressing origin

[faulesocke]

I'm currently disassembling a lot of 16 bit real-mode code. A unique property of this code is that the address at which the code would normally load can not be guessed from the code itself - it must be known ahead of time in order to produce correct disassembly. Is it possible to set the addressing origin in plasma (something like the -o option to ndisasm), maybe through the python API?