Get/Set Printer Port Type; Select Int 15H Mode; Note That For This Function, Fs3 And Mp2500 Are Synonymous - Husky MP2500 Manual

Get/set Printer port type

Entry
Exit
Description

Select INT 15H mode

Note that for this function, FS3 and MP2500 are synonymous.

Entry
Exit
Description
Chapter 26: INT 15H, BIOS Extension Functions [+]
AH=A2H
AL= 0 (get) or non-0 (set)
BL=0 (use serial port)
If set, nothing is returned
If get, AL=0 (serial port type)
Use this function to set or check which type of port to
use for printing via LPT1: on the standard MP2500, the
only port that can be used is the serial port, COM2.
The default is to use the serial port, COM2. No other
printer port types can be selected.
AH=A3H
AL= (0=FS3, 1=FS3 only, 2=AT only)
Returns nothing
This function selects which subset of overlapping
INT 15H sub functions are accessed by their normal
(80H..91H) numbers. The mode parameter has the
following effects:
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