The official Kinky Kode thread

[Larry Hammick]

hows it non existant then, its (offset) testlabel -1...
so you just jump to the db 66h....

I dramatised it a bit :bg. The code just shows that the assembler understands "testlabel-1". So, we don't need to think up a new name for a jump destination if we know how far it is from some other named label. The trick also works for local labels, e.g. "jc @F+2".