[pjmlp]

You still needed to write the program before assembling it, so your suggestion would be taking too much memory in the assembler editor.

[Zenst]

memory is not a issue thesedays for assembly language. to impose such limits today for the sake of history then you may as well cut up bits of cereal box's, get a hole punch and make your own punched cards!

[batista]

6502 is also not for "these days". That said, its a tutorial about _learning_ it, not redesigning it to be modern and easier.