[Coco] Custom CoCo 3 ROM (Was: ROM switcher ?)

[Bruce W. Calkins]

On 11/20/20 10:52 AM, tim lindner wrote:
> On Fri, Nov 20, 2020 at 7:34 AM <coco at jechar.ca> wrote:
>> I have a Coco whose 32K ROM is replaced by a Boot to Drivewire
>> ROM that only works to boot OS-9 from a drivewire server wondering
>> if there is a physical switch to allow one to switch between
>> two 32K ROMs so the original that has just bin sitting in a drawer
>> for years could be switched in to let me run COCO BASIC tape programs
>> and use game cartridges and Disk Basic.
> 
> Maybe someone has a custom coco 3 rom that includes the default
> ability to DW Boot into OS-9?
> 
> If you hold a key down, you get BASIC.
> 
> Then you would not have to have a custom board made. All you would
> need to to reprogram the EEPROM you already have.
> 
A more elegant solution, but someone do have to understand enough 
assembly language to do it.

Bruce W.