DIGITAL RESEARCH(r) CP/M Plus TM (CP/M Version 3) Operating ...

The SID Command CP/M 3 User's Guide
The HIST utility creates a histogram (bar graph) showing the relative
frequency of execution of code within selected program segments of the
test program. The HIST utility allows you to monitor those sections of
code that execute most frequently.
Upon start-up HIST prompts
TYPE HISTOGRAM BOUNDS
Enter the bounds in the following format-,
aaaa,bbbb
for a histogram between locations aaaa and bbbb inclusive. Collect
data in U or T mode, then display results.
The TRACE utility obtains a traceback of the instructions that led to a
particular breakpoint address in a program under test. You can collect
the addresses of up to 256 instructions between pass points in U or T
modes.
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