Build a Functional Equivalent to the CDP1861

[James Nugen]

I saw this article in the latest (Sept. 2005) 'Circuit Cellar' and 
thought some of you 1802 fans might find it interesting:

*Replacing a Legend: *Build a Functional Equivalent to the CDP1861*
*/Bob Armstrong
/Bob built a functional equivalent to a CDP1861 video controller chip so 
he could play video games on his COSMAC Elf replica. The design includes 
two ATF22V10 GALs and a few standard 74HC chips. Ready to replace some 
random logic? /p. 58/

-James Nugen