[Coco] Coco 3 Memory Map Questions

[L. Curtis Boyle]

Isn't the 16 bit access to memory more for the GIME, for accessing graphics memory to send to the screen?

Sent from my iPhone

> On Feb 7, 2016, at 3:59 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
>> On 2/7/2016 12:57 PM, Robert Gault wrote:
>> RETRO Innovations wrote:
>> 
>> I'll try to answer these questions although I'm not sure I know just what you meant by some of them. If you don't already have a copy, get the Tandy Coco3 service manual, #26-3334. There are .pdf copies.
> Looked over my copy before posting, and yes, it is a fine resource.
>> 
>> Since the cpu has 16-bit registers, it make sense for memory to be accessed at that width.
> That doesn't make sense to me.  The 6809 data path is 8 bits wide, regardless of the width of internal registers.  Just like the 68008 used an 8 bit data path even though the registers were 16 and 32 bits wide.
> 
> 
> -- 
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>