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376 VM/HSC 6.0 System Programmer’s Guide
1st ed., 6/30/04 - 312579601
HSC TRACE Command
The HSC TRace command enables or disables tracing of events in selected HSC
components.
It uses GTRACE to perform the actual tracing. The SCP TRACE command must have the
“USR” event enabled for any trace output to result.
For a detailed description of how to use the HSC TRACE command, refer to the HSC
Operator’s Guide.
Format of HSC GTRACE USR Records
Table 23. HSC GTRACE USR Records
Offset Length Description
+C 2 Trace identifier
+E 5 Name of module issuing SLSTRACE macro
+13 1 Length of data area used
+14 2 Trace module offset
+16 1 Flag bits
X’80’ Data truncated
X’40’ Allow GTRACE recording
X’20’ First pass
+17 1 Sequence number of this record
+18 4 Trace TBLOK address
+1C 4 Reserved
+20 1-224 Trace data from component
Notes:
• GTF REcord size = 256 Bytes
• HSC Record size may be larger than 256 Bytes
• One HSC record may require more than one GTF record.