Hello!
The emulated AMI 286 in Pcem is one of the first machines added with the generic turbo XT bios.
I found the AMI 286 uses the M-209 chipset created by PC-Chips. It supports 286 cpus at 12,16 and 20 mhz. The machine has built-in support for EMS memory.
It uses a Hedaka D60 designed by Add-tech. The manual shows the setup bios screen that is identical to the emulated machine. (in page 10).
Varius versions EMS drivers exist for this machine, and there is a special HIDOS.SYS driver for DR-DOS 6 that can create UMB memory in this chipset.
My question is if the emulation of this chip could be added.
I don't know if information about this chipset exist. But it was a common PC back in the day.
Here is the manual of the machine:
http://vogonsdrivers.com/files/manual.motherboard.m-209.1991-10-20.pdf
And here the device drivers:
Thanks in advance!