Texas Instruments TI-99/4A - Trace

TRACE
TRACE
The TRAce CQmmallll alluw~ yuu lu ~ee the order in which the
computer performs
statements as it runs a program. After the
TRACE command is entered. the line number of each program line
is di:SlJ1ayeu iJdure the statement is performed. The TRACE
command is most often used to help find errors, such as unwanted
infinite loops,
in a program.
The TRACE command may be placed as a statement in a program.
The effect of the TRACE command or statement is cancelled when
the NEW command
or UNTRACE command or statement is
performed,
II-36
Examples:
>NEW
>100 PRINT "HI"
>110 8;27.9
>120 PRINT :8
;.130 END
>TRACE
>RUN
,,100;'HI
<110><120>
27.9
<130>
.* DONE *.
>UNTRACE
>105 TRACE
>RUN
HI
<110><120>
27.9
<130>
** DONE **
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