[0/3] ASM80 v1.6.2

Main differences from version 1.6.1:
■ operations with halves of index registers (xh, xl, yh, hl) have appeared
■ now the assembler takes up 23 kilobytes less. :)

There will most likely be no further versions, but if someone wants to add
conditional translation directives, I can provide the sources (if needed).

Yours truly, Vladimir Frunze AKA Hexman/BYTEX.
[Team ZX ASM] [Team Metallica] [Team Art Works]