> According to the info docs, .trunc is "a read-only register
> containing the amount of vertical space truncated by the most
> recently sprung vertical position trap." However, if I insert
>
> .tm page \\n[%] \\n[.trunc]
>
> at the very top of a trap-invoked footer macro that coincides with
> my bottom margin, .trunc is reporting '0' even when the last line on
> the page falls short of the bottom margin. [...]
Maybe a bug. Please provide a small demo file and file a report so
that someone can fix and/or check that (not me, I fear).
Werner