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Texas Instruments TI-99/4A - Trace

Texas Instruments TI-99/4A
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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
**
User's
Reference
GUide

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