Texas Instruments 990 Operation Manual page 84

J~
_ _ _ _ _ _ _
~
945255-9701
The command is terminated by a carriage return.
Parameters:
starting breakpoint The first breakpoint to be cleared. A
number from 0 to 3.
ending breakpoint The last breakpoint to be cleared. A
number from 0 to 3.
Parameter default values:
If no parameters are specified, all breakpoints are cleared.
If only the first parameter is given, only the specified breakpoint will be cleared.
If only the second parameter is given, breakpoints 0 through the specified ending breakpoint will
be cleared.
Description: If an attempt is made to clear a breakpoint that has not been set, the command is
ignored.
Error message:
DP13
A breakpoint index greater than the maximum possible
index number (3) was specified, or the ending break-
point index was less than the starting breakpoint
Examples:
.CB 1,3
.CB
index number.
The first example clears all breakpoints except number O. The second example clears all
breakpoints.
3.4.25 SET TRACE DEFINITION (ST). The Set Trace Definition command defines parameters
that determine what information about instruction trace regions will be printed. This command
is implemented as a service routine on the instruction trace overlay module.
Syntax definition:
ST
{b.J
<format index>
{i,.J
<char string>
The command is terminated by a carriage return.
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Digital Systems Division .