Anonymous labels are a way to handle short-ranged branches
without having to come up with names for the then and else
branches, for brief loops, and other such purposes. To define
an anonymous label, use a bare colon or an asterisk. To refer
to an anonymous label, use a series of +
or - signs. + refers to
the next anonymous label, ++ the label
after that, etc. Likewise, - is the most
recently defined label, -- the one before
that, and so on. The main body of the Hello World program
with anonymous labels would be:
ldx #0
* lda hello, x
beq +
jsr $ffd2
inx
bne -
: rts |
It is worth noting that anonymous labels are globally available.
They are not temporary labels, and they ignore scoping
restrictions.