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-0 « a1 « A1 security « A20 handler » A-3 » A3D » A4C


Copyright Denis Howe 1985

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