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the address that is obtained by applying any specified indexing or indirect addressing rules to specified address
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How do you calculate effective address?
To calculate the effective address in a computer system, you typically follow a formula that incorporates the base address, index, and offset. The effective address is determined by adding the base address to the product of the index register and the scale factor, along with any immediate offset. The general formula can be expressed as: Effective Address = Base Address + (Index × Scale) + Offset. This calculation is commonly used in assembly language and memory addressing modes.
Give the segment registers and their corresponding offset registers?
Give the effective address if the segment register is AA03 and the offset register is 0200.
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 use of offset address in 8086 mp?
Offset address is also known as displacement.By adding this offset value to a base address,address of a specific locaction in memory can be accessed
What is offset address?
An offset address is a relative address rather than an absolute address. You use offsets to refer to memory relative to an absolute address. For instance, array indices are implemented using offsets from the start address of the array, such that element 0 is at offset 0 and element 5 is at offset 5.
What is the offset for a Class C IP address?
The offset for a Class C IP address is 24 bits.
How the 20 bit effective address is calculated in 8086?
The 8086 forms a 20 bit address by adding the effective address (a 16 bit value) to a segment register (another 16 bit value) which is left shifted by 4. That gives a 20 bit address in the range of 00000H to FFFFFH. cs register holds the base address (16 bit) and the IP has the offset. (ex): CS --->348A IP --->4214(offset) generation of 20 bit: CS*10+IP (ie) 348A0 04214 + ---------------------- 38AB4(20 BIT) ----------------------
How do you obtain offset address?
To obtain an offset address, you typically start with the base address of a memory segment and add the desired offset value to it. In programming, this can be done using pointer arithmetic. For example, in C or C++, if you have a pointer pointing to a base address, you can obtain the offset address by adding an integer value to that pointer. The resulting address points to a specific location within the memory segment relative to the base address.
What is base address and offset address?
In software Engineering KPA denotes.
In the Base plus Offset addressing Offset address is also known as?
Base plus displacement.
Can physical address and virtual address be same?
your question is wrong. it should be "can physical address and logical address be same" answer is no because logical address is the combination of page number and offset whereas physical address is the combination of physical page[frame] and offset
What is offset in segment register?
In computer architecture, an offset in a segment register refers to the specific address within a segment of memory that the segment register points to. Segment registers are used to divide memory into different segments, enabling easier access and management of data. The offset is added to the base address contained in the segment register to form the effective address of a memory location. This method allows for more efficient memory utilization and organization, particularly in systems with limited addressing space.
