Word Variables:
The assembler directive for defining a word variable has the following form:
name D W initial_value
the pseudo-op D W MEANS "Define word. "for example
W R D D W - 2
as with byte variables , a question mark in place of an initial value means an uninitialized word . the decimal range of initial values that can be specified is - 32768 to 32767 for a signed interpretation ,or 0 to 65535 for an unsigned interpretation.
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