Texas Instruments TMS320C6 Series, User Manual

Page: 142 / 304

Running Your Programs
6-14
Running code while disconnected from the target system
reset The RESET command resets the simulator and reloads the monitor. This is a
software reset. The format for this command is:
reset
If you execute the RESET command, the simulator simulates the ’C6x proces-
sor and peripheral reset operation, putting the processor in a known state.
Running code conditionally
The RUN, STEP, CSTEP, NEXT, and CNEXT commands all have an optional
expression parameter that can be a relational or logical expression. This type
of expression uses one of the following operators as the highest precedence
operator in the expression:
> > = <
< = = = ! =
&& | | !
When you use this type of expression with these commands, the command
becomes a conditional run. The debugger executes the command repeatedly
for as long as the expression evaluates to true.
You must use software breakpoints with conditional runs; the expression is
evaluated each time the debugger encounters a breakpoint. (Breakpoints are
described in Chapter 8,
Using Software Breakpoints.) Each time the debugger
evaluates the conditional expression, it updates the screen. The debugger
applies this algorithm:
top:
if (
expression = = 0) go to end;
run or single-step (until breakpoint,
ESC
, or mouse button halts execution)
if (halted by breakpoint, not by
ESC
or mouse button) go to top
end:
Generally, you should set the breakpoints on statements that are related in
some way to the expression. For example, if you’re watching a particular
variable in a WATCH window, you may want to set breakpoints on statements
that affect that variable and to use that variable in the expression.