[colorforth] Success...my first boot screen

[marrandy <marrandy@xxxxxxxxxxxxxxxxxx>]

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

Yes, I understand.

I think (speculation) that as ColorForth is mean't to be so pure and direct,
Chuck is going for the hardware directly.

As the BIOS is there in the Boot ROM,  why not use it ?

It's not like another OS is being loaded.

It's there irrespective.

Chuck, Jeff  ???  where is Jeff anyway.  Haven't heard his voice in a long
time.

Regards...Martin
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