Files for download

64k-newdecoder.gif 8.6kB (2006-03-22 02:22)

Internal 64kB for mapped to addresses #2000..#FFFF by Wilf Righter (2005).

32k-newdecoder.gif 8.2kB (2006-03-22 02:21)

Internal 32kB mapped to addresses #2000..#9FFF by Wilf Righter (2005).

zx81.zip 621.2kB (2002-03-04 23:19)

Original UK assembly instructions in HTML format with schematic/component layout.

Links to other pages

http://www.user.dccnet.com/wrigter/

Here you will find a collection of articles of enhancements for the ZX81 Personal Computer. Some are brand new and others revisit the many projects Wilf Righter have contributed over the years. Enjoy!