=> R0 = operation type
R1 = remote address, or procedure number
R2 = station number
R3 = net number
R4 = pointer to data buffer
R5 = data size
R6 = repeat count
R7 = delay in cs
<= R0 = handle
R1 corrupted
R2 = pointer to buffer
R3 = station number
R4 = net number, or 0 if R3 on entry was the local net
This SWI opens a transmission block, and starts an immediate operation. The data buffer should be in RMA or some other permanently available area of memory, due to the way in which the data is read.
See PRM 2, page 679.
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