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CP & CMS

CP & CMS. Debugging Facilities. CP Display. Displays contents of memory, regs , PSW Display 0 100 200 displays 3 locations Display 0-200 displays x'0' through x'200' Display P displays the current PSW Display g5 displays general register 5

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CP & CMS

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  1. CP & CMS Debugging Facilities

  2. CP Display • Displays contents of memory, regs, PSW Display 0 100 200 displays 3 locations Display 0-200 displays x'0' through x'200' Display P displays the current PSW Display g5 displays general register 5 Display t 1000.100 displays 100 bytes WITH EBCDIC

  3. CP Trace sets • A Trace set is a collection of trace commands • Trace command samples: • Trace inst r 1000-2000start @ x’1000’ to address x’2000’ • Trace inst r 1000.16 start @ x’1000’ for 16 bytes • Trace prog traces program checks • addressing • operation • specification (alignment, etc) • privilege • protection

  4. CP Trace sets (more) • Additional operands • Run does not stop at each breakpoint • End deletes the trace set • Stopn stops after ‘n’ displays of trace data • Step n is a repeating STOP specification • Stop 3 Step 9 pauses after the 3rd and 12th displays and for every 9th display thereafter.

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