Epson S5U1C17001C, Manual

Page: 531 / 742

S5U1C17001C ManUal
EPSOn
10-81
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
10 DEBUggEr
step
(single-step, every line)
stepi
(single-step, every mnemonic) [ICD Mini / SIM]
Operation
Single-steps the target program from the current PC address. Lines and instructions in the called functions or
subroutines also are single-stepped.
step
: Single-steps the program by executing one source line at a time. In C sources, one line of C instruction
(all multiple expanded mnemonics) are executed as one step. In assembly sources, instructions are executed the
same way as for
stepi
.
stepi
: Single-steps the program by executing one assembler instruction (in mnemonic units) at a time.
In addition to one line or instruction, a number of steps to execute can also be specified. However, even before
all specified steps are completed, the program may be halted by one of the following causes:
• Already set break conditions are met.
• The [Stop] button is clicked.
Format
step [
Count
]
stepi [
Count
]
Count : Number of steps to execute (decimal or hexadecimal)
One step is assumed if omitted.
Conditions: 1
≤
Count
≤
0x7fffffff
Usage example
n
Example 1
(gdb) step
The source line displayed on the current PC is executed.
n
Example 2
(gdb) stepi
The instruction (in mnemonic units) is executed at the address displayed on the current PC.
n
Example 3
(gdb) step 10
sub (k=5) at main.c:20
Ten lines are executed from the source line displayed on the current PC.
n
Example 4
(gdb) stepi 10
main () at main.c:13
Ten instructions (in mnemonic units) are executed from the address displayed on the current PC.
GUI
The
step
and
stepi
commands can also be executed using one of the methods below. In such case, however,
you cannot specify the number of steps to execute. (Only one step of the program is executed.)
To execute the
step
command
• Click the [Step] button in the [Source] window.
[Step] button
• Choose [Step] from the [Control] menu in the [Source] window.
• Enter [s] ([S]) while the [Source] window is open and displayed in SOURCE mode.
When the program is single-stepped using the method above, information about the line executed appears in
the [Console] window and is also output to a log file at log output.
10
Debugger