Epson S5U1C17001C, Руководство пользователя

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3-40
EPSOn
S5U1C17001C ManUal
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
3 SOfTWarE DEVElOPMEnT PrOCEDUrES
The letter '
i
' will appear in the list box of the window, the contents of which are displayed as decimal values
(default display mode).
Step 64
: Click the [Local Variables] button.
This is the [Local Variables] window. It shows the local variables defined in the current function. Since the cur-
rent PC address exists in the
main()
function, the symbol and the value of the variable '
j
' defined in this func-
tion are displayed.
We have thus far seen the windows for the
gdb
debugger. Each window has other facilities, not just the ones
that display information. These are detailed in Section 10.4, "Windows".
We'll now return to program execution.
In the preceding steps, we ran a program, stopping it using forced breaks.
This time we'll run a program after specifying in advance a position at which to stop it.
To specify a breakpoint
Step 65
: The source line numbers are displayed in the [Source] window. Move the mouse cursor to a position
preceding numeral 16. Click when the cursor changes to a
l
(white circle).
You will see that source line 16 is marked with
n
(red) at the beginning of it. This means that this line has been
set to be a software PC breakpoint. If a
n
mark is attached anywhere other than source line 16, click there to
reverse, then repeat.
Step 66 : Click the [Continue] button.
In contrast to Step 56, the program this time should have stopped at the line set to be a breakpoint. Try pressing
the [Continue] button a number of times. You will see that the program stops at the same place each time.