Re: A86: 16-bit Rotations
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Re: A86: 16-bit Rotations
In a message dated 9/22/00 2:32:26 AM Eastern Daylight Time,
rabidcow@juno.com writes:
> i always thought it was carry, which seems completely backwards.
> rr & rl rotate through/including carry, while rrc & rlc don't
> circular makes more sense to me (except that technically, neither is
> circular...)
According to Rodnay Zaks's book:
RLC r Rotate register r left with branch carry.
RL s Rotate left through carry operand s.
It could be ZiLOG arbitrarily added a letter just to have some way to
differentiate between the two instructions... :-)
----
Jonah Cohen
<ComAsYuAre@aol.com>
http://jonah.ticalc.org