0
8086 has memory divided into segments.
Each segment has its particular register like ES, DS, SS, CD (extra segment, data segment, stack segment and code segment).
These registers hold the base address BA.
Now, there two base registers(BX and BP) and two index registers(SI and DI) in 8086. These registers hols the effective address EA.
Now Physical address PA is sum of EA and BA.
That is,
PA = BA+EA
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is physical address in 8086 microprocessor?
Physical address in the 8086/8088 is {Selected Segment Register} * 16 + {Effective Offset Address}. It is a 20-bit address .
What is meant by effective address in microprocessor?
Effective address is the final address generated by offsetting and indexing which is sent to the virtual translation logic. It is the address of the operand in the virtual address space of the process, but not necessarily the address of the operand in the physical address space of the computer. In the 8085, efffective/virtual address is the same as physical address, because there is no virtual addressing logic in the 8085. In the 8086/8088, effective/virtual address is the same as physical address, but only in real mode. For example, in the 8086/8088, if the EBX register contains 1000000H, then the instruction MOV EAX,[EBX+1234H] has an effective address of 10001234H.
What has the author Lanny V Dao written?
Lanny V. Dao has written: 'Mastering the 8088 microprocessor' -- subject(s): Intel 8088 (Microprocessor)
Which company introduce 8088 microprocessor?
Intel in 1979
What is the size of the interrupt vector table in the 8086-8088 microprocessor?
There are 256 different interrupt vectors in the 8086/8088. Each vector is a far CS:IP address, which is four bytes. That makes the interrupt vector table 1,024 bytes.
What has the author Yu-cheng Liu written?
Yu-cheng Liu has written: 'Microcomputer systems' -- subject(s): Intel 8086 (Microprocessor), Intel 8088 (Microprocessor), Intel 8086 (Microprocesseur), Mikroprozessor 8086, Microcomputers, Mikroprozessor 8088, Intel 8088 (Microprocesseur)
What is memory interfacing in 8086 microprocessor?
The 8086/8088 is a 16 bit computer running on a 20 bit address bus. Processes use a segmented memory architecture to access one of four 64kb memory segments from a physical space of 1mb.
How many address lines are required to access 1MB RAM using microprocessor 8086?
The 8086/8088 microprocessor has a 20 bit address bus, so the number of memory locations it can address is 220 or 1,048,576.
What made the 8088 Intel CPU special compared to its predecessors?
The 8088 was a 16 bit microprocessor implemented on an 8 bit databus.
What does physical address mean?
The physical address is the final address that is presented to the bus, at the pins of the microprocessor chip, to form the address of the desired item in memory.In the 8085, physical and effective addresses are one and the same.In the 8086/8088, the physical address is the effective address plus 16 times one of the segment registers.In higher level processors, such as the 80386 and beyond, the physical address is formed by lookup of the effective address in a page table to convert from virtual/effective address to physical, or linear, address.The effective/virtual address is the address generated by the instruction and the programmer, without regard to any underlying addressing scheme. This is the address used when considering the "programming model", in "user mode".
What is pin configuration of microprocessor 8088?
the pin configuration of a processor means that the diagramatic representation of block diagram of processor representing various pins and the function of that pins
What is the the interfacing scheme to connect 8k1 ram and 8k1 ROM with 8088 microprocessor?
8088 processor? Get yourself some fresh gear. Cripe's sake.
