Epson S5U1C62000A - Manual (Page 184)

172 EPSON S5U1C62000A MANUAL
(S1C60/62 FAMILY ASSEMBLER PACKAGE)
CHAPTER 9: DEBUGGER
s
(step)
Function
This command single-steps the target program from the current PC position by executing one instruc-
tion at a time.
Format
>s []
↵
(direct input mode)
: Number of steps to be executed; decimal (default is 1)
Condition: 0
≤
step
≤
65,535
Operation
If the is omitted, only the program step at the address indicated by the PC is executed, other-
wise the specified number of program steps is executed from the address indicated by the PC.
>s
↵
... Executes one step at the current PC address.
>s 20
↵
... Executes 20 steps from the current PC address.
The program execution is suspended by the following cause even before the specified number of steps
is completed.
• The [Key Break] button is clicked or the [Esc] key is pressed
• The break or reset switch on the ICE is pushed
After each step is completed, the register contents in the [Register] window are updated. If the
[Register] window is closed, the register contents are displayed in the [Command] window same as
executing the rd command.
Notes
• The step count must be specified within the range of 0 to 65,535. An error results if the limit is ex-
ceeded.
Error : Number of steps out of range, use 0-65535.
• If the [Data] window is opened, its display contents are updated after the execution.
• During a single-step operation, the program will not break even if the break condition set by a
command is met.
• Unlike in successive executions (g or gr command), the [Register] window is updated every time a
step is executed.
• The s command (one step) is also executed by pressing [Enter] at the command prompt ">".
GUI utility
[Run | Step] menu item, [Step] button
When this menu item or button is selected, the s command without step count is executed.
[Step] button