X'60' trace entry

The X'60' trace entry

 TRACE ID   = X'60'
 
      word 0 	— byte 1 - X'60' OSAM START I/O
     				  byte 2 - Zero (no PST number)
					  bytes 3-4 - Trace sequence number
      word 1 	— IOSB address
      word 2 	— START I/O — DECB address 
      word 3	— START I/O — RBN/M 
      word 4	— Buffer address
      word 5	— Buffer data (offset X'40' into buffer)
      word 6	— byte 1 - Request type
       			— byte 2 - not used 
       			— byte 3 - 'M' DCBFDAD seek value (MBBCCHHR)
       			— byte 4 - 'C' DCBFDAD seek value (MBBCCHHR)     
		word 7	— CHHR DCBFDAD seek value (MBBCCHHR)