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M-Labs (formerly known as the Milkymist project) is a company and community who develop, manufacture and sell advanced open hardware devices and solutions. It is best known for the Milkymist system-on-chip (SoC) which is among the first commercialized system-on-chip designs with free HDL source code.〔(【引用サイトリンク】title=The Register: Open-source hardware group puts out vid system-on-a-chip )〕 M-Labs technologies have been reused in diverse applications. For example, NASA's Communication Navigation and Networking Reconfigurable Testbed (CoNNeCT) experiment uses the memory controller that was originally developed for the Milkymist One〔(【引用サイトリンク】title=JPL acknowledgement letter )〕〔(【引用サイトリンク】title=Tech the Future: Open source hardware )〕〔 and published under the terms of the GNU General Public License (GPL). The project was presented at several open source and hacker conferences such as the Chaos Communication Congress,〔(【引用サイトリンク】title=26C3 schedule )〕 FOSDEM,〔(【引用サイトリンク】title=Milkymist : Pushing further the limits of electronics openness )〕 Libre Software Meeting,〔(【引用サイトリンク】title=Milkymist : a free System-on-Chip for real-time video )〕 and Libre Graphics Meeting 2011.〔(【引用サイトリンク】title=Milkymist One video synthesizer shown at 6th Libre Graphics Meeting in Montreal )〕〔(【引用サイトリンク】title=Milkymist One Shown at Libre Graphics Meeting )〕 It was also featured on the ''Make'' magazine blog〔(【引用サイトリンク】title=Make: Online: Milkymist :: Interactive VJ Station )〕 and the Milkymist One board was included in their "ultimate open source hardware gift guide 2010".〔(【引用サイトリンク】title=Make: Online: The Ultimate Open Source Hardware Gift Guide 2010 )〕 == Milkymist SoC == The Milkymist system-on-chip uses the LatticeMico32 (LM32) core as a general purpose processor. It is a RISC 32-bit big endian CPU with a memory management unit (MMU) developed later by M-Labs contributors. It is supported by the GCC compiler and can run RTEMS and μClinux. There is also an experimental back-end for LLVM targeting this microprocessor. The LM32 microprocessor is assisted by a texture mapping unit and a programmable floating point VLIW coprocessor which are used by the Flickernoise video synthesis software. It is also surrounded by various peripheral cores to support every I/O device of the Milkymist One. The system-on-chip interconnect uses three bridged buses and mixes the Wishbone protocol with two custom protocols used for configuration registers and high performance DMA with the SDRAM. The architecture of the Milkymist system-on-chip is largely documented in the project founder's Master thesis report. Most components of the system-on-chip, except the LatticeMico32 core, were custom developed and placed under the GNU GPL license. The QEMU emulator can be used to run and debug Milkymist SoC binaries〔(【引用サイトリンク】title=QEMU development mailing list )〕 on another computer. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「M-Labs」の詳細全文を読む スポンサード リンク
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