Similar to ESi-RISC
 - M32RM32R
 - Mbed
 - MCP-1600MCP-1600
 - MicroBlazeMicroBlaze
 - Microsoft SQ1
 - MME U80701U80701
 - MME U880U880
 - MMN80MMN80CPU
 - MOS 6502MOS Technology 6502
 - MOS 6507MOS Technology 6507
 - MOS 6510MOS Technology 6510
 - MOS 8502MOS Technology 8502
- Multi-Chip ModuleMulti-chip module
 - .NET Gadgeteer.NET Gadgeteer
 - Nios IINios II
 - OpenCoresOpenCores
 - OpenFire
 - OpenRISCOpenRISC
 - PA-RISCPA-RISC
 - PacoBlaze
 - PAPRPower Architecture Platform Reference
 - Parallella
 - PEZY-SC
 - PicoBlazePicoBlaze
 - PRePPowerPC Reference Platform
 - PSoCCypress PSoC
 - QorIQQorIQ
 - R800R800