[Coco] auto-starting game paks

[Phill Harvey-Smith]

> I'm trying to think of a way connect Q to CART to make an 
> auto-starting pak, but also use a few logic gates or maybe a 
> transistor to block the Q-to-CART connection once something in the 
> pak is On and Ready, such as the 6551 ACIA which also uses CART.  So,
>  once the CPU interrupts are enabled back by the pak ROM software, Q
>  will be filtered from entering CART and only the 6551's interrupt
> pin will affect CART.

The other way to do it, is to have your ROM code have DK as the first
characters and the actual code start at $C002, as this is  what the Dos 
carts for both the CoCo and the Dragon do. Though after they have done 
their initialisation they do jump back to the Basic rom for it to 
continue it's initialisation, but a look at the relevent DOS rom 
disassembilies should reveal where you need to jump to.

Cheers.

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.