If you modify one line in module "Next186_CPU.V" line 1640 aprox.
Anything like this: end else begin MREQ = 1'b0; ISIZE = 1; // jepalza, antes "0", sirve para engañar a algunos programas que detectan CPU y se cuelgan IRQ = 1'b1; end
you can trick CPU as seen by dos, like 80286. With this trick, many programs run correctly, like "EM8087.EXE"