BSMT2000
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The BSMT2000 is an audio DSP created by Brian Schmidt for use in various pinball and video games (notably, the Data East pinball games, as well as its successors, Sega Pinball and Stern Pinball).
The BSMT2000 was first used in 1991's Batman, and 2003's Terminator 3: Rise of the Machines was the last game to use the chip.
Due to the supply shortages of the BSMT chip, Stern added hardware emulation of the chip on its WhiteStar II pinball hardware (via an Atmel AT91SAM CPU and three Xilinx FPGAs) for backwards compatibility with previous WhiteStar-based pinball games.
The BSMT2000 is currently emulated in video game emulators like MAME and PinMAME, as well as the M1 Audio Hardware Emulator.
Officially, its initials stood for "Brian Schmidt's Music Technology", although according to Schmidt himself, it stood for "Brian Schmidt's Mouse Trap" (as in the old saying, "Build a better mouse trap and the world will beat a path to your door").