Control Screen Synchronisation [+]; Get/Set Diskette Drive Port - 84H; Get/Set Screen Attribute Table [+] - Husky MP2500 Manual

Control screen synchronisation [+]

Entry
Exit
Description

Get/set diskette drive port - 84H

Entry
Exit
Description

Get/set screen attribute table [+]

Entry
Exit
Chapter 26: INT 15H, BIOS Extension Functions [+]
AH=83H
AL=0 (disable) or non 0 (enable)
Returns nothing
The LCD screen window normally tracks screen output
to keep the cursor in view. Use this function to enable
or disable this screen synchronisation. (For example,
you could disable synchronisation if using standard
software that moves the cursor to unimportant areas of
the screen.)
The default state is enabled. This default is restored by
a cold start. Users can also control synchronisation by
using the HOT key.
AH=84H
AL=0 (get) or non-0 (set)
BL=0 (COM2)
If get, AL=0 (COM2)
If set, nothing is returned
This function is ignored on MP2500 as there is no
Fischer connector, the diskette drive can only be
connected via COM2 (the serial port).
AH=86H
AL=0 (get) or non 0 (set)
DS:SI=start of attribute table buffer
BX=1234H
AH=0 buffer contains attribute table, if get
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