gtpg1m10General Information

Diagnostic Tools

The following enhancements have been made to the diagnostic capabilities in the TPF 4.1 system:

Branch trace facility
Provides a list of the last 1000 executed BALR, BASK, and BASSM branches using either the ESA/370 or ESA/390 architecture.

Real time trace (RTT)
Assists in determining the causes of errors by selectively monitoring the execution of ECB-controlled programs and producing a record of the system services macros executed and related data.

Online mini dump
You can activate a dump data user exit to present ECB-controlled SERRC and SNAPC data.

User exits provide a means for users of TPF to add user-unique processing at various points in TPF programs without having to modify the released programs.

Macro trace
Two traces are provided:

System log trace
Traces events formerly included in macro trace that are not associated with a message or an I/O device.

Enter/Back trace
Traces all ENTxC and BACKC macros.

I/O trace
Improved to trace each device separately rather than as a single table for the entire system, allowing your installation to detect devices that are hung. The trace information is collated by time stamp.

Register trace
Traces registers on every supervisor call instruction (SVC).

Program Event Recording (PER) facility
Provides a hardware trace to trap program information when a specific event occurs. The TPF 4.1 system supports the following PER functions:

Path information unit (PIU) trace facility
Provides expanded PIU tracing with additional information.

SNA I/O trace facility
Provides a detailed I/O trace for SNA I/O interrupts that occur during Network Control Program (NCP) XID exchanges, adjacent link station (ALS) XID exchanges, and channel-to-channel (CTC) XID exchanges. It also provides a detailed I/O trace for NCP, ALS, and CTC asynchronous interrupts.