[Buge]

It also uses a single jmp instruction to branch back to the start in a loop.

Two values a and b can be compared by storing 0 into * a and 1 into * b. Then a == b if * a is 1. Then this value can be used to index into an array to provide different behavior based on if a == b.

Edit: apparently HN doesn't allow me to escape * with \, which the markdown spec says I should be able to do.

[thaumasiotes]

> HN doesn't allow me to escape * with \, which the markdown spec says I should be able to do

So? What does the markdown spec have to do with... anything? The XML spec says you have to begin your comment with a version number declaration, but you're not doing that.

[Buge]

I thought it was trying to implement markdown by italicizing half my sentence when I put * in. Markdown was what popped into my mind when I saw that behavior. It would be nice if I could find a way of escaping them without having to insert spaces where I don't want spaces.

[lorenzhs]

There isn't one, HN doesn't use markdown. See https://news.ycombinator.com/formatdoc

[kuschku]

It should use markdown, though.