Meantime Mitsubishi Electric is laying down the gauntlet to Inmos with the Transputer by preparing a spring sampling of Pegasus, a RISC microprocessor specifically designed for efficient execution of the Prolog artificial intelligence language: Pegasus will be a 32-bit part and is rated at 239 inferences per second; it will have a 42-instruction set, is being implemented in 2 micron CMOS with a 9mm die size, and will integrate 50,000 transistors; Hitachi has already revealed plans for a dedicated artificial intelligence chip.