Interrupt 15H (I/O Subsystem)
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Interrupt Fnct Subfnct Name
15H 00H Turn On Cassette Motor
15H 01H Turn Off Cassette Motor
15H 02H Read Cassette
15H 03H Write Cassette
15H 0FH Format ESDI Drive Periodic Interrupt
15H 21H 00H Read POST Error Log
15H 21H 01H Write POST Error Log
15H 4FH Keyboard Intercept
15H 80H Device Open
15H 81H Device Close
15H 82H Process Termination
15H 83H Event Wait
15H 84H Read Joystick
15H 85H SysReq Key
15H 86H Delay
15H 87H Move Extended Memory Block
15H 88H Get Extended Memory Size
15H 89H Enter Protected Mode
15H 90H Device Wait
15H 91H Device Post
15H C0H Get System Environment
15H C1H Get Address of Extended BIOS Data Area
15H C2H Mouse Pointer (summary screen)
15H C3H Set Watchdog Time-Out
15H C4H Programmable Option Select
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