S5U1C62000A MANUAL
EPSON
167
(S1C60/62 FAMILY ASSEMBLER PACKAGE)
CHAPTER 9: DEBUGGER
9.9.5 Register Operation
rd
(register display)
Function
This command displays the contents of the registers, current and next operation code and correspond-
ing mnemonic.
Format
>rd
↵
(direct input mode)
Display
(1) Contents of display
The following lists the contents displayed by this command.
PC:
Program counter
A:
A register
B:
B register
X:
X register
Y:
Y register
SP:
Stack pointer
IDZC:
Flags
Current Code: Currently fetched program code at address indicated by PC
and corresponding mnemonic
Next Code:
Next code and corresponding mnemonic
(2) When [Register] window is opened
When the [Register] window is opened, all the above contents are displayed in the [Register] window
according to the program execution. When you use the rd command, the displayed contents of the
[Register] window is updated.
(3) When [Register] window is closed
Data is displayed in the [Command] window in the following manner:
>rd
↵
PC:0206 A:0 B:f SP:7d X:003 Y:0ff IDZC:0010
Current Code:e00 LD A, 0x0 Next Code:e80 LD XP, A
>
(4) During log output
If a command execution result is being output to a log file by the log command, the register values are
displayed in the [Command] window even if the [Register] window is opened and are also output to
the log file.
GUI utility
[View | Register] menu item
When this menu item is selected, the [Register] window opens or becomes active and displays the
current register contents.