Hardware Reference
In-Depth Information
Figure 3.9
■
Setting tools option for MiniIDE
The D-Bug12 commands are provided to help the program-debugging process. Some of these
commands can be used to set and display the contents of memory locations. In this section, char-
acter strings entered by the user are in boldface and optional fields are enclosed in brackets [ ].
In the following section, the syntax of a command is presented and then examples are given.
bf
*
StartAddress
+
*
EndAddress
.
[
*
Data
+
]
The
bf
command is used to fill a block of memory locations with the same value. For exam-
ple, the following command clears the internal memory locations from $1000 to $10FF to zero:
+
bf 1000 1FFF 0
The data field is optional. If we did not specify the data to be filled in, then zero would be
entered in the specified memory locations.
md
*
StartAddress
+
[
*
EndAddress
+
]
The
md
(
memory display
) command is used to display memory contents. This command
displays memory contents as both hexadecimal bytes and ASCII characters, 16 bytes on each
line. The ,
StartAddress
. parameter must be supplied; the ,
EndAddress
. parameter is op-
tional. When the ,EndAddress. parameter is not specified, a single line is displayed.
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