[Coco] [Color Forth] Is there a "Cold Start" Location for DECB?

William Astle lost at l-w.ca
Tue Feb 3 16:46:43 EST 2015


The best way to do this is (in asm):

	clr >$71
	jmp [$fffe]

The first will force basic to do a cold start. The second will go to the 
correct address for the reset code. I used forced extended addressing on 
the first line in case you're setting DP to something other than 0.

The reset addresses are different between the coco1/2 and coco3.

On 15-02-03 02:43 PM, Stephen Pereira wrote:
> Hello again, all,
>
> I am making great progress with my modifications to Talbot Microsystems Color Forth, to make it useful in conjunction with DECB (or HDBDOS in my case).  I now have a command (SSCR) for saving a block of 8 screens of Forth program code onto disk with your own file name, and also another command (LSCR) for loading a block of 8 screens of Forth program code from disk by filename.  I also have a command (DIR) to take a look at the files available on disk, to check that your file got there OK, or if you need to look up the file name for loading.
>
> I would also like to make a command called BASIC to allow one to revert back to DECB without having to resort to the reset or power switch.
>
> Is there a specific location to jump to if one wants to execute a “cold start” into DECB?  Is this spot different for a CoCo 1 or 2, versus a CoCo 3?
>
> Thanks in advance!
> smp
> --
> Stephen M. Pereira
> Bedford, NH  03110
> KB1SXE
>
>



More information about the Coco mailing list