Answer Posted / shabir gojree lpu
In the x86 processor architecture, memory addresses are
specified in two parts called the segment and the offset.
One usually thinks of the segment as specifying the
beginning of a block of memory allocated by the system and
the offset as an index into it. Segment values are stored
in the segment registers. There are four or more segment
registers: CS contains the segment of the current
instruction (IP is the offset), SS contains the stack
segment (SP is the offset), DS is the segment used by
default for most data operations, ES (and, in more recent
processors, FS and GS) is an extra segment register. Most
memory operations accept a segment override prefix that
allows use of a segment register other than the default
one.
| Is This Answer Correct ? | 5 Yes | 6 No |
Post New Answer View All Answers
Explain the functions of the two dma signals hold and hlda?
Explain the instruction stream queue mechanism in the 8086?
Define the types of memory used in 8085 microprocessor?
Define microprocessor?
Explain memory mapped i/o and i/o mapped i/o schemes?
Point out the differences between the 8086 and 8088 microprocessor?
What are different adder circuits you studied?
State the two type of 16 bit registers and define them?
How can the signals of the 8086 be categorised?
How clock signal is generated in 8086? What is the maximum internal clock frequency of 8086?
Byte wise what are the lengths of call and ret instructions?
What is the purpose of pipe lining in reference to 8086?
What is single stepping and how can it be achieved on the 8086?
Why memory width is not 16-bit? In stead of having 8-bit (same as 8085)?
Mention interrupts pins of 8085?
