ROM Question II More Info

["Bryan Parkoff" <BParkoff@satx.rr.com>]

ROM Question II More Info

    I have studied Apple I, II and II+.  It shows that all Apple I/II family
have the EXACT same 6502 microprocessor that they do not get involved with
65c02 nor 65xxx (IIgs).  I don't believe that Apple I has 6501.  It does not
exist, but it always appear to show 6502.  If you say is true, please
provide me the information including web site.
    I have reviewed a very few routines between Apple I and II.  Only very
few are very similar, but more codes have added over existing routines to
expand more memory for the graphic such as lo-res and hi-res.  $400-7FF are
the same for text.
    Yes, it can limit up to 32KB for Apple I, but it is possible to break
the barrier beyond 32KB however Apple II/II+ can reach 64KB -- Good!
    I always like to use monitor routine with only 256 bytes that it helps
us to study back to original before we can expand to understand enchanced.
For example, can you understand advanced complex alegbra?  You can't unless
you can understand basic alegbra before you can continue to understand from
the beginning to the complex.  Understanding 2-bit, 4-bit and 8-bit.  I
started with 4-bit for better math.
    Does it make sense to you?  Please advise.

--
Yours Truly,

Bryan Parkoff
BParkoff@satx.rr.com