May 2024
Intermediate to advanced
889 pages
30h 8m
English
book
The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
by Lyla B. Das
Content preview from The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
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19-16
THE
x86 MICROPROCESSORS
What Can Be Done with One Bit?
It can be ‘set’ or cleared; there are instructions available which will set or clear each
individual bit of these 16-byte locations, i.e., there are 16 × 8 = 128 bit addressable
locations in the internal RAM.
Byte Addressable RAM The rest of the RAM from 30H to 7FH is addressable only as
bytes. These locations can be read from or written into, using the MOV instruction in the
direct or indirect addressing mode.
19.5 | The 8051 Stack
All processors need a stack. A stack is a portion of memory which can act as a temporary
storage location for data, which will be taken back later. The stack is a special type of
data structure, in that it can be accessed (read from or written to) only at ...
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