Int 15H [PC] Function 00H Turn on cassette motor

Turns on the motor of the cassette tape drive.

Call with:

AH = 00H

Returns:

If function successful

Carry flag = clear

If function unsuccessful

Carry flag = set

AH = status

86H if cassette not present

Note:

This function is available only on the PC and the PCjr. It is not supported on the PC/XT and all subsequent models.