Embedded scripts extract from ipxe binary

[subsoil]

Hello everybody,

due to a reinstallation I have lost my ipxe build environment and the included self-made configuration script file. I have the undionly.kpxe and ipxe.efi files which were compiled with an embedded config script.
Is it somehow possible to extract this embedded configuration script out of these binaries. For example by decompiling?
Thanks much for your time and help