[Coco] Space Invaders - Translated from Intel 8080 to Motorola 6809 for the CoCo 3

Mark McDougall msmcdoug at iinet.net.au
Thu Dec 29 07:04:21 EST 2016

On 29/12/2016 4:50 AM, Dave Philipsen wrote:

> One example might be to ask a 16 or 32-bitter with a high-level
> language to do the equivalent of the CoCo bit-banger serial port without
> a hardware timer or the use of interrupts.  Another would be to create
> the 32 kHz modulation and data transmission of an IR LED transmitter
> completely with software.

I question though whether anyone would ever need to do this now or in 
the future? These days if you need to do this (commercially) then you've 
chosen the wrong MCU (or solution). Sure it's a lost art but so are 
Morse Code and calligraphy (as ordinary handwriting is heading towards 
for that matter).


Mark McDougall

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