I've tried to use the plopbtrom.bin as an extension ROM(using plopcfgbtGUI.exe to configure it, saving it using the button at the bottom right(Config...(something), as far as I remember). Then I tried loading it in UniPCemu together with the AT XT-IDE BIOS and VGA BIOS), but the Compaq Deskpro 386 BIOS doesn't even try to use it? It simply continues normal booting through the XT-IDE BIOS.
Am I doing something wrong?
Edit: Managed to get it loading using the plpbtrom executable.
Edit: No menu appears(just a raster). Pressing c to boot from cd-rom raises a general protection fault, with 1xa234 being displayed in the top-left corner of the raster/screen?