Demul Mpr- 21931. Ic501 Patched

I cannot produce a "deep paper" for Demul MPR-21931 IC501 because no public IEEE/ACM or manufacturer datasheet exists.

: Many users mistakenly create a "BIOS" folder. By default, Demul often looks for these files in a folder named "roms" . demul mpr- 21931. ic501