Stepper is a fully featured machine code monitor and debugger created for the Tatung Einstein, a system built around the Z80 processor. It is designed to give the user complete visibility into the working state of the computer and full control over the execution of machine code. On Z80 based systems, such tools were essential for developing new software, repairing faulty routines, and experimenting with low level behaviour.
K.H. Scriven
K.H. Scriven remains essentially a mysterious, undocumented contributor to the Tatung Einstein ecosystem. It is most likely that they were an individual (or very small-scale developer) rather than an established publisher.
1986
