DBRC group services entries

When DBRC is registered with SCI, module DSPRLX10 makes trace calls in response to group services requests. These calls can be requests to send notifications to other DBRC instances, event notifications, or requests or messages from other DBRC instances.

Requests without an accompanying message are traced in the DSPRLX10 trace entry. Entries with messages are traced in the DSPRLX1M trace entry.

Layout of the DSPRLX10 trace entry:

Line 1:
		words 0-1 – Identifier DSPRLX10
		word 2    – A(DFSBRLSB)
		words 3-5 – Data from DFSBRLSB: function flags, exit flags, address of DSPGDB.
                 (These fields are the same as the fields that are 
						displayed in the DSPCRTR0 entry, but they might have been modified by 
                 the request.)
		words 6-7 – Time stamp

Layout of the DSPRLX1M trace entry:

Line 1:
		words 0-1 –Identifier DSPRLX1M
		word 2    – A(DFSBRLSB)
		words 3-5 – Data from DFSBRLSB: function flags, exit flags, address of DSPGDB. 
                 (These fields are the same as the fields that are 
						displayed in the DSPCRTR0 entry, but they might have been modified by 
                 the request.)
		words 6-7 – Time stamp

Line 2:
		words 0-1 – 'DSPRLMSG'
		word 3    – Message type
		word 4    – message subtype
		words 5-7 – Zeros

Line 3:
		words 0-3 – Message sender ID
		word 4    - Message sequence number
		word 5    – Message ID that is being responded to
		words 6-7 – First two words of message specific data