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Debugger Command Syntax
In general, a debugger command is made up of the following parts:
The commands are shown using a modified Backus-Naur form
syntax. The metasymbols used are:
Syntactic Variables
The following syntactic variables are encountered in the command
descriptions which follow. In addition, other syntactic variables
may be used and are defined in the particular command description
in which they occur.
exp
addr
count
range
text
Expression as a Parameter
An expression can be one or more numeric values separated by one
of the arithmetic operators: plus (+), minus (-), multiplied by (*),
divided by (
The command identifier (i.e.,
Display command). Note that either upper- or lowercase
characters are allowed.
A port number if the command is set up to work with more
than one port.
At least one intervening space before the first argument.
Any required arguments, as specified by the command.
An option field, set off by a semicolon (
other than the default conditions of the command.
Expression (described in detail in a following section).
Address (described in detail in a following section).
Count; the syntax is the same as for exp.
A range of memory addresses which may be specified either
by addr addr or by addr: count.
An ASCII string of up to 255 characters, delimited at each end
by the single quote mark (').
), logical AND (
/
Entering Debugger Command Lines
or
for the Memory
MD
md
) to specify conditions
;
), shift left (<<), or shift right (>>).
&
4
4-3
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