PSYCHO-STATS 80: A basic statistical package for the TRS-80

TRS-80 with a grain of salt

This paper presents early results of a (very) experimental implementation of the elliptic curve and stream cipher calculations of the Networking and Cryptography library (NaCl), on the TRS-80 Model I. Needless to say, the demonstration that such a library, which has been optimized for many modern platforms including leading edge desktops, servers and, recently, modern microcontrollers, is even ...

Gimli, Lord of the Glittering TRS-80

Bernstein et al. have proposed a new permutation,Gimli [1], which aims to provide simple and performant implementations on a wide variety of platforms ranging from the AVR ATmega and ARM-Cortex to the Intel Haswell. In a festive spirit of retrocomputing, this brief paper reports such a simple and (somewhat) performant implementation on the almost Third-Age-of-Middle-earth-dating TRS-80.

TRS-80 With A Keccak Sponge Cake

The subject of this paper, an improbable implementation of a recently standardized cryptographic hash function on a thirty-five-yearold microcomputer, may strike some as unusual and recreative at best. In the tedious discipline of the process, however, lessons were learned in implementation trade-offs for basic cryptographic primitives which may prove interesting in the current context of secur...

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A Horizontal Loop for 80-Meter DX

In 1997 the author published an article on vertical full (and ground plane type half) wave loops for 80 meter DX. In that article it was noted that perpendicular (horizontal) polarization is the preferred polarization, particularly at low elevation angles, since horizontally polarized waves are hardly affected by the finite conductivity of the ground in front of the antenna. An exception when v...