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INT 15h, 43h (67) Read System Status Convertible
Reports the status of the system for the PC Convertible.
On entry: AH 43h
Returns: Carry Set if error, else cleared
AH Modified
AL Status (see below)
--------------------------------------------------------------------------
Status (AL)
7 6 5 4 3 2 1 0
1 . . . . . . . Low battery
. 1 . . . . . . Operating on external power source
. . 1 . . . . . Standby power lost
. . . 1 . . . . Power activated by real-time clock alarm
. . . . 1 . . . Internal modem power-on
. . . . . 1 . . Serial/parallel power-on
. . . . . . 1 . Reserved
. . . . . . . 1 LCD not attached
--------------------------------------------------------------------------
Notes: This service is available only for the PC
Convertible.
If the standby power is lost (bit 5 is on), then the
real-time clock time will be incorrect.
See INT 1Ah, Service 08h, for power-on using the
real-time clock alarm.