Function 26, subfunction 10 - get sound DMA channel.
Parameters:
eax = 26 - function number
ebx = 10 - subfunction number
Returned value:
eax = number of the channel (from 0 to 3 inclusive)
Remarks:
Number of the DMA channel is used by
subfunction 1 of function 55
.
To set the sound DMA channel use
subfunction 10 of function 21
.