[colorforth] Success...my first boot screen

["t" <loveall@xxxxxxxxx>]

Martin,

The 3 zip kits on my colorForth index page (see below) each have the requested
64k c4.com file in them (the floppy only mod from Kris Johnson is named
c4a.com).

First, can you run the c4.com file from a bare DOS boot? If so than type 'save'
with a disk in your A drive. If the floppy runs for a few seconds and control
comes back, then you have a colorForth that might then boot from a floppy.

Regards,
Terry

----- Original Message -----
From: "marrandy" <marrandy@xxxxxxxxxxxxxxxxxx>
To: "colorforth List Member" <colorforth@xxxxxxxxxxxxxxxxxx>
Sent: Tuesday, July 09, 2002 2:42 PM
Subject: [colorforth] Success...my first boot screen


> Hello t
>
> On 09-Jul-02, you wrote:
>
> > On Tuesday, July 9, 2002 Martin wrote:
> >
> >> So the big question is...why does Terry Loveall's and Sean Pringles
> >> Color-like Forth's work fine with the floppy, but Chuck's ColorForth has
> >> problems.
> >
> > The reason that Seans Nth color forth boots consitently is that he uses
> > Int 13h BIOS calls. The reason my color forths have disk I/O is the use of
> > DOS file I/O. Chuck's colorForth uses direct register writes to the
> > 'industry standard' floppy interface.
> >
> > The strength and weakness of colorForth is an optimum fit of software to
> > hardware. The weakness is that it only runs on harware it has been
> > optimized for.
> >
> > The way I got colorForth to run on Asus and other motherboards was to
> > disassemble the Asus BIOS int 13h calls and look for differences between
> > Chuck's original code and the BIOS. What I found was the 'write to port
> > 0E1h' time delay. Obviously, on other systems it will be different.
> >
> > What is the difference between using an industry standard BIOS call and
> > directly accessing hardware that contains less than industry standard
> > functions?
> >
> > Regards,
> > Terry Loveall
>
>
> I'm trying this on asus P4S333 M/B.
>
> Can you send me your floppy working code as an attachment.
>
> e.g. a straight working color.com file that I can load and then try and save
> to make a bootable ColorForth.
>
> To date, the ones I have tried have failed.
>
> Regards...Martin
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