Re: How to recreate the 31 July color.com

Jason Kemp <[email protected]>
Newsgroups gmane.comp.lang.forth.colorforth
Message-ID <[email protected]>
Dear Charley & John,

Firstly I should have said that I have a (very old) computer that runs 
colorForth and the disk and video work perfectly.  Having saved 
colorForth I also can now boot it directly.  Only the 31 July version 
works though--none of the modified or later variants boot.

What I am trying to achieve is to assemble the 'kernel' source, somehow 
add in the colorForth source (all that which I think available to edit 
from block 18 onwards) and then run this.  MASM compiles and links the 
code to a DOS .COM file, so I then boot the computer with a DOS floppy 
and try running the program.

I've just been trying to find out where I picked up this idea from (I've 
downloaded so many bits and pieces I've lost track) and I've found it 
was zip file of Terry Loveall's 800x600 at 
http://modest-proposals.com/binary/c4-800x600-p2bd-02.zip but this 
specific version didn't work for me.

Jason

John Comeau said the following on 22/02/2008 19:16:
> Hi Jason, the color.com file is what was saved after loading the
> high-level colorForth code, so it has a lot more data in the lookup
> tables than does the bare-bones code assembled from the sources. Also,
> the sources have a glaring off-by-one error that causes code to load
> at the wrong location, hence Charley's advice might work.
>
> But even running it as a DOS program won't help if you don't have
> exactly the right hardware. You might need to use a different
> colorForth compiled for your own graphics card.
>
> On Fri, Feb 22, 2008 at 11:14 AM,  <[email protected]> wrote:
>   
>> I vaguely remember that what was created with an assembler had to be run from a DOS boot disk.  In other words, it's a DOS program, not a native colorforth.  Am I wrong?  Then when and if it runs you can save it as a native colorforth floppy with SAVE.
>>
>>  I hope that helps,
>>  Charley.
>>
>>
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