GoKawiil
Tech News
The developer behind the MartyPC emulator commissioned a 5.6-gigapixel die photograph of an NEC V20 CPU (fabricated by second-source manufacturer Sharp) to extract its microcode. The goal is to replace MartyPC's existing V20 emulation core, which was essentially a modified 8088 core rather than a true cycle-accurate model, with one based on the chip's actual internal logic.
A developer is building a simulator for CII's Mitra-15, a French 16-bit minicomputer from the early 1970s, by adapting an existing SDS 940 simulator within the SIMH framework. The project is still in an early, incomplete stage, with core instruction sets, memory management, and numerous peripheral devices like disks, tape readers, and various I/O channels still to be implemented. The developer relied heavily on documentation compiled by Pascal Chour due to the scarcity of surviving Mitra-15 materials.