Re: Wonder if we could get BASIC on this

["madcrow" <madcrow.maxwell@gmail.com>]

Michael J. Mahon wrote:
> aiiadict@gmail.com wrote:
> > Michael J. Mahon wrote:
> >
> >>David Murray wrote:
> >>
> >>>the Apple also stored its text screen
> >>>starting at $400
> >>
> >>It's the first logical place to put a 1KB buffer.
> >>
> >
> >
> > $00 - $FF zero page
> > $100 - $1FF stack
> > $200 - $2FF keyboard buffer
> > $300 - $3FF free space
> >
> > why not $200?  seems logical to me to put it
> > there too?
>
> It's not a mod $400 boundary.  The two lowest options are
> $0000 and $0400, and $0000 is clearly taken.

Or my personal theory could be correct and Commodore put it's text
buffer at $0400 deliberately to make Apple II stuff easier to port to
C64.