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The memory map shows how
addresses have been
allocated for memory and
any other devices
connected to the address
bus.
Here ram has been given
the lowest 48k of
addresses and ROM the
highest 16k.
Each area of memory can
be subdivides into pages
of 256 addresses.
Page zero occupies
addresses 0000 to 255
in decimal or 0000 to
00FF in hex.
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