The first thing to do in order to create a faithfull emulator of a PS/1 model 2011, able to function with the original ROM, is to do a reverse engineering of the BIOS (actually, there are other methods, but I find this one more instructive).
So here you can download a IDA Pro file with the POST procedure analyzed and commented.
Please note that this is my very first reverse engineering work and my assembly language knowledge is weak at best.
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