Here's a surprise for all of you.  Enjoy.   Background ---------- The UberGROM simulator ( is a cartridge board with many functions, including the ability to simulate GROM. (For more functions, please see the manual (available on AtariAge's TI-99/4A forum.) During the 1983-1984 era, many cartridges were prototyped by TI and other companies. These prototypes had GROM images that were likely loaded into a GROM Simulator (functioning as GRAM) to
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