De (data memory enter) – Epson S5U1C62000A User Manual
Page 175

S5U1C62000A MANUAL
EPSON
163
(S1C60/62 FAMILY ASSEMBLER PACKAGE)
CHAPTER 9: DEBUGGER
de
(data memory enter)
Function
This command rewrites the contents of the data memory with the input hexadecimal data. Data can
be written to continuous memory locations beginning with a specified address.
Format
(1) >de
↵
(direct input mode)
(2) >de
↵
(guidance mode)
Data enter address ?
↵
Address
Original data
:
↵
..........
>
Start address from which to write data; hexadecimal or symbol (IEEE-695 format only)
: Write data; hexadecimal
Condition:
0
≤
address
≤
last data memory address, 0
≤
data
≤
0xf
Examples
Format (1)
>de 100 A
↵
... Rewrites data at address 0x100 with 0xa.
Format (2)
>de
↵
Data enter address ? 100
↵
... Address is input.
100 0 : a
↵
... Data is input.
101 0 :
↵
... Skipped.
102 0 : q
↵
... Command is terminated.
>
Notes
• The start address specified here must be within the range of the data memory area available with each
microcomputer model.
An error results if the input one is not a hexadecimal number or a valid symbol.
Error : invalid value.
An error results if the limit is exceeded.
Error : Data address out of range.
• The contents of the read only area cannot be rewritten. A warning message will be displayed if you
specify such an address.
Warning : read only address, can't write.
• In guidance mode, the contents of the write-only I/O area will be marked as hyphens (-).
For the contents of address of mixed read-only and write-only bits in I/O area, an exclamation mark
(!) will be marked in front of the data.
The contents of the unused area will be marked as slashes (/). If you encounter any address marked
by "/", press [Enter] key to skip that address or terminate the command.
• Data must be input using a hexadecimal number in the range of 4 bits (0 to 0xf). An error results if the
limit is exceeded.
Error : Data out of range, use 0-0xf.
• When the contents of the data memory is modified using the de command, the displayed contents of
the [Data] window are updated automatically.