Re: Integer BASIC Question

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

    No, it is not correct for Apple I.  Integer BASIC is always written for
Apple I.  It has nothing to do with the hardware.  It starts from $E000
through $EFFF.  Maybe, original Integer BASIC was revised for original Apple
II.
    In fact, Apple I used tape cassette to load Integer BASIC into memory
$E000 through $EFFF.  Only ROM is monitor routine from $FF00 through $FFF9
including RESET/NMI/IRQ and Ready from $FFFA through $FFFF.
    The programmer programmed Integer BASIC from $800 through $9FFF if it
can expand memory up to 64KB with special controller card, but for chips
that can go up to 32KB.  The programmer can only store Integer BASIC from
$800 through $9FFF into tape cassette.  It is what the Apple I manual said.


--
Yours Truly,

Bryan Parkoff
BParkoff@satx.rr.com
"Linards Ticmanis" <ticmanis@coli.uni-sb.de> wrote in message
3CBA28D7.3070008@coli.uni-sb.de">news:3CBA28D7.3070008@coli.uni-sb.de...
> Bryan Parkoff wrote:
> > Integer BASIC Question
> >
> >     Is original Integer BASIC the EXACT same for Apple I and Apple II?
Was
> > it revised for Apple II+ before AppleSoft BASIC was added?
>
> No and No. The Apple I is *not* compatible hardware wise with the Apple
II.
> The system architecture is very different, and the I had no graphics
> modes if I remember correctly. Integer BASIC has commands for doing
> graphics. That proves it couldn't run on the A1 in the state it is in now.
>
> In fact I don't think the Apple I had a BASIC in ROM at all.
>
> As to the second question, the addition of AppleSOFT is exactly what
> makes a II+ into a II+, it is the only hard-and-fast difference between
> the II and the II+. So there is no II+ with Integer BASIC ROMs.
> The INTBASIC file on the DOS 3.3 system master is identical in content
> with the ROM-based Integer BASIC in the II. The exceptions are the
> D800-DFFF area (there's no chip there in the II so you read garbage when
you
> access this area, the INTBASIC file has the corresponding area from
> Applesoft BASIC but it is not used) and the Monitor
> area F800-FFFF. The INTBASIC file on the older DOS 3.3 system master has
> the contents from the NEW Autostart Monitor ROM of the II+. The INTBASIC
> file on the newer DOS 3.3 from 1983 has nothing (it ends at F7FF),
> instead the Monitor code is copied from ROM. Thus this later DOS 3.3
> INTBASIC can run on the 2e, 2c and 2gs without disabling for example
> lowercase input and other additions to the monitor.
>
> --
>
> Linards Ticmanis
>
>   The Master said, "The business of laying on the colors follows the
> preparation of the plain ground."
>
>
>
>
>