INT 67,49 - Get I/O Port Addresses (LIM EMS ¾ 3.0)

AH = 49h

ES:DI = far pointer to storage array

on return:

AL = board count (0 < AL <= 4)

AH = 00 success

= error code (see ~EMS STATUS~)

- defined in EMS 3.0, but undocumented in EMS 3.2; new software

should not use this function, but old software still works

- registers not listed are preserved