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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0-40
THE
x86 MICROPROCESSORS
Immediate Addressing
Here, the source data is written in the instruction itself.
MOV A, 78H ;copy the number 78H to A
ADD A, 67 ;add the content of A and the number 67. The
sum is to be in A.
LXI H, 3453H ;the immediate number 3453H is loaded in the
HL register pair
0.9.3 | Instruction set of 8085
The instruction set can be divided into functional groups as:
i) Data transfer instructions.
ii) Arithmetic instructions.
iii) Logical instructions.
iv) Branch instructions.
We will discuss each group in more detail now, using a sample set of each group.
0.9.3.1
|
Data Transfer Instructions
These instructions are responsible for transferring data between registers, register and
memory, I/O and accumulator. These ...
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