Update for IP65 TCPIP Stack Released

Oliver Schmidt has announced a major update to the IP65 TCP/IP Stack for the Apple II Computer.   According to his press release in the CSA2,

“It is likely that you think of IP65 as an asm written TCP/IP library for asm
programmers. But IP65 has significantly changed recently in two

1. C Interface
The IP65 programming model has deliberately always favoured simplicity
over flexibility. However, targeting only asm programmers there
weren’t too many to appreciate that design.

Since I started to maintain IP65 I worked on making IP65 usable for C
programmers and recently that effort was completed successfully. You
can now download ready-made libraries plus a C header file and start
your own TCP/IP or Internet program right away using cc65.

The approach to call asm code from C is totally natural to cc65 given
that the C standard library is written almost completely in asm too.
And just like the C standard library IP65 can be used on several 6502
machines. All this fits so nicely that I adopted IP65 as part of the
cc65 GitHub project, meaning the IP65 main URL is now:

If you want to take a peek at the IP65 C interface check out

2. Ready-to-run TCP/IP programs
Beside the libraries IP65 now comes with five programs:

– Telnet65 is the only asm program coming with IP65. I completed it already 1.5 years ago.

– Date65 is primarily a demo for a simple IP65 C program. Additionally it can be of actual use for everybody without a real-time clock.

– HFS65 is an HTTP file server allowing any web browser to access all files on an Apple II.

– Wget65 is an HTTP file/disk downloader with advanced cmdline like  UI. I created two demo videos.

– Tweet65 is primarily a demo for triggering events on IFTTT aka if-this-then-that (https://ifttt.com/) from a 6502 machine.

Additionally it can be used as-is to post tweets on Twitter after putting together a simple “Applet” on IFTTT. “


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About the Author

Bill Martens

A.P.P.L.E. Chairman of the Board and Club president -- Bill worked for the founder, Val J. Golding and A.P.P.L.E. from 1981 to 1982. In 1999, he began archiving the materials which were distributed and sold by A.P.P.L.E.. That project led to the group that remained of A.P.P.L.E. Bill was involved in the financial industry in Tokyo and has over 20 major office infrastructure projects to his name. In March 2001, he retired to write books and to spend more time pursuing personal interests. As the president of the users group, Bill is in charge of distribution of Call-A.P.P.L.E. magazine as well as the organization of this web site. Bill currently resides in Tokyo, Japan and Shelton, Wa splitting time between the places.