Assuming that the original content of this bit is 0 and of CY fl ag 1, this instruction would store 1 in the
CY fl ag after completion of its execution. Neither the original content of the bit would be changed nor would
any other fl ags be aff ected. If any port pin is addressed then the data would be collected from its input pin,
and not from its output latch.
Fig. 10.15 illustrates the other version of ORL instruction, which complements the addressed bit before
performing the OR operation. If the original content of the addressed bit is 0 and CY fl ag contained 1 then
the instruction would leave 1 in ...
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