Get/Set Power Save Entry Flag [+] - Husky MP2500 Manual

Description
Notes:

Get/set power save entry flag [+]

Entry
Exit
Description
Chapter 26: INT 15H, BIOS Extension Functions [+]
Use this function to enable or disable power input from
the AC adaptor. When power input is disabled, the AC
adaptor will not charge batteries or supply power to
MP2500. This should be used if Alkaline batteries are
fitted.
1. For this function to operate correctly you must also
set SI and DI as indicated.
2. This function will fail if Battery Charging Support
has been disabled in UTIL.
The default, restored on a cold start, is to enable power
input.
AH=8CH
AL=0 (get) or non 0 (set)
BX=mask, if set
BX=current mask, if get
MP2500 normally enters power save mode to
conserve power whenever possible, for example, if an
application is waiting for keyboard input. However, it
will not do so if an application is repeatedly accessing
other BIOS services since this indicates that it is doing
more than waiting for user input.
You can use this function to optimise the use of power
save mode and so extend battery life.
To allow entry to power save mode even while such
accesses are being made, use this function. Set bits in
BX to 0 to indicate which services should not prevent
power save entry, as follows:
251