MaSoCist Soc builder/simulator

Project maintainers


Name: masocist
Created: Nov 29, 2018
Updated: Nov 24, 2019
SVN: Check description below for external links
Bugs: 1 reported / 0 solved
Star0you like it: star it!

Other project properties

Category:System on Chip
Development status:Mature
Additional info:Design done, FPGA proven
WishBone compliant: Yes
WishBone version: B.3
License: Others


The MaSoCist is an acronym for 'Martins SoC Instancing, Simulation Toolchain'.

It is a VHDL collection and toolchain based on various open source (and some proprietary) utilities to configure, build and maintain system on chip designs with the focus on lean and mean microcontrollers with optimum code density.

It features the following opensource CPU cores by default:

  • neo430 CPU core from
  • ZPU Zealot architecture
  • ZPUng proprietary pipelined ZPU variant (VHDL edition only)
  • RISC-V (rv32ui compatible) pyrv32 CPU (VHDL edition only)

It includes a simple wishbone bridge for optional wishbone compliant core adaptation. All hardware definitions are maintained in XML source, which generates C headers, VHDL decoders and documentation in one 'go'.

Basic peripheral cores are included, such as SIC (system interrupt controller), UART, SPI, TIMER, etc.

The project is currently hosted at: