RE: [colorforth] modern block style / response

[Fréderic DUBOIS <frederic.dubois@xxxxxxxxxxxxx>]

> -----Message d'origine-----
> De : Alex Thiel [mailto:alex.lists@xxxxxxxxxx]
> Envoyé : ven. 14 mars 2003 14:42
> À : colorforth@xxxxxxxxxxxxxxxxxx; Fréderic DUBOIS;
> 'colorforth@xxxxxxxxxxxxxxxxxx'
> Objet : Re: [colorforth] modern block style / response
> 
> 
> On Thursday 13 March 2003 18:40, Fréderic DUBOIS wrote:
> > > On Wed, 12 Mar 2003, Fréderic DUBOIS wrote:
> > > > 	Hello again list,
> > > >
> > > > Could someone be so kind to describe me the implementation
> > >
> > > of blocks in CF?
> > > Always nice to see other forth's  ;-)
> >
> > I try to put it online: http://www.membres.lycos.fr/astrobe
> > I'm not sure it works right know.
> >
> > > I thought I would tell you what I know about block and CF.
> > > In old forth's block was used to access disk room.
> > > In CF block is used in the same way. But it treats the ram
> > > as it would've the disk.
> > >
> > > At boot time a variable nc, holds the value of how
> > > many tracks are read into the ram blocks. The ram is 32MB
> > > worth of blocks.
> > > When talking of Chuck's original release.
> >
> > And these tracks are loaded at address given by BLOCK, is it?
> 
> No, these tracks are loaded at address 0x0000 in memory.
> colorForth uses a flat memory model and blocks map to memory 
> locations simply 
> by
> 
> : BLOCK 0x100 * ;
> 

That's what I was meaning to mean.  BTW you can end up with editing any
memory place, including the kernel; what happens then? 
Also, the user has to take care of the increase of dictionnary pointer with
regards with preloaded tracks/blocks. I feel I miss something here.
A thing I wonder about: when you modify something, you got to issue a SAVE
command, and it records back the loaded tracks? If nc increases too much it
may become long.

> So BLOCK is nothing more than a convenient unit of measure 
> used by the editor.
> 
> Cheers,
> 	Alex
> 

	Regards. 

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