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Re: Jitter: new stack primitive: tuck [
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From: |
Jose E. Marchesi |
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Subject: |
Re: Jitter: new stack primitive: tuck [ |
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Date: |
Thu, 28 Nov 2019 16:58:53 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
> I have added a new stack operation [...]
And now another, which you might also like since you juggle a lot with
stacks.
"tuck" is a kind of slightly counterintuitive dual of over, which leaves
a copy of the current top, without destroying it, in the under-under-top
position, moving under-top and top up by one position.
What stable Jitter tag features this instruction?