Miles Sound System SDK 7.2a

DDK Function: 401H Start Digital Playback Command

Input:

AX = 401H
BX = Driver number
CX = Sample rate in hertz (samples per second, not bytes per second)
DX = Mode index (see DDT for details)

Output:

None

This function initiates digital sound playback.

The following conditions must be met before calling this DDK Function:

* The driver has been initialized.

* The device I/O settings have been verified.

* The device has been initialized.

* The DST *DMA_buffer_A and *DMA_buffer_B variables have been set by MSS.

* The DMA buffer contents have been properly initialized by MSS.

* Real-mode callback service (if required) has begun.

* CX equals one of the three possible sample rates for the desired mode as specified by DX.

Subsequent calls to this function without an intervening call to Function 402H (Stop Digital Playback Request) will have no effect.

Group: DOS Digital Sound Driver Interface