# Questions and answers

## 'e and '

[doc/data] tells me that the payload of an entry is 4 bytes after the entry's
address. However, when I do "' swap 'e swap -", I get a negative number! How
come?

You get this discrepancy because you chose "swap" instead of a more regular
word. If you try the same with other words, for example "allot", you'll get 4.

"swap" and other stack words are created with "inline" [doc/usage/words] to make
them faster due to their wide usage. This means that the resulting "swap" entry
is marked as a "find selector" [doc/usage/words].

Lookups on those words don't yield the actual entry payload, but the result of a
code being executed. The word "'" executes find selector code, where "'e", as
documented in [doc/mem/dict], doesn't. That's why you get this discrepancy.