bieling@terra.es wrote:
On Mar 27, 9:17 am, "mdj" <mdj....@gmail.com> wrote:Indeed, although I can't imagine wanting to to those things without pausing the 6502, so there's easier ways. MattWouldn't you like, for example, to switch video modes through a keystroke ? Transparently ? Without writing a single byte of code ? Without the 6502 nor the software even noticing ?
Apparently some feel the need to do this enough to devise hardware to make it possible. The DMAcontroller described by Sather is an example. I've never found it to be a problem that I couldn't solve another way. -michael NadaNet networking for Apple II computers! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it's seriously underused."