If you want to use a modern gcc/gas, and build with (for instance) '040
optimizatiens:

Replace
	bcc	1f
with
	bcc	_symbol_noone_uses
and
	1:
with
	_symbol_noone_uses:

and it should build.

I'm sure there's a specific syntax for unnamed labels, or something, but
I don't know what it would look like.

-s