=> R0 = &AAAACCCC amplitude channel (1-8)
R1 = &DDDDPPPP duration pitch
<= R0, R1 preserved
This SWI is identical to Sound_Control, except that the parameters are packed as pairs of 16 bit values into R0 and R1. It is provided for BBC compatibility and the scheduler. Use Sound_Control instead if possible.
The advantage of this SWI is that it may be used with Sound_QSchedule.
See PRM 4, page 36.
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