I got into 6502 assembly when trying to do bit manipulations on an Apple IIc back in the day.
The problem was that Applesoft basic set the high bit on data going out a serial or parallel port which was a problem for printing and sending data out through a modem. So if you wanted to keep the high bit one had to use 6502 assembly.
The problem was that Applesoft basic set the high bit on data going out a serial or parallel port which was a problem for printing and sending data out through a modem. So if you wanted to keep the high bit one had to use 6502 assembly.