Nov 2023

A project log for PlasMa Mini-Mainframe Simulator

A simulator homage to old-school mini/mainframe systems with real lights and switches

phil-tippingPhil Tipping 12/02/2023 at 16:180 Comments

Main memory increased from 2K to 64K words for the PleX ISA. This was part of an upgrade exercise using re-tracked PCBs, and was the final planned hardware change. Future updates will be firmware-only.

Floating point functions added to PleX . This has not been rigorously tested yet, apart from running Lunar Lander :) but any fixes will only require firmware updates.