A20 handler

<software, storage>

IBM PC memory manager software providing HMA. XMMs usually provide this functionality. Named after the 21st address line (A20), controlling the access to HMA.

Last updated: 1996-01-10

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Nearby terms:

\{@}A#A-0a1A1 securityA20 handlerA-3A3DA4Ca56AAC

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