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How can you access the 16-bit data at a time in 8086 microprocessors?
The 8086 processor provides a 16 bit data bus. So It is capable of transferring 16 bits in one cycle but each memory location is only of a byte(8 bits), therefore we need two cycles to access 16 bits(8 bit each) from two different memory locations. The solution to this problem is Memory Banking.
What is 16-bit microprocessor and how it works?
The 16 bit Microprocessor means that it has 16 address lines. A 16 bit microprocessor is having 16bit register set. It have 16 address and data lines to transfer address and data both. Hence it is 16 address lines. The maximum addresses are 2^16 means 65536.
How does the 8086 processor access a word from an odd memory location?
When a 16 bit word is to be read from memory at an odd memory address say 125, the CPU first puts 124 on the address bus and gets the contents at location 125 in the higher order byte. In the next clock cycle the CPU puts 126 on the address bus and gets the contents at location 126 in the low order byte.
Which directive is used to define 16 bit data?
DB = define byte size variables. DW = define word size (16 bits) variables.
How does the 8086 processor identify between 8 bit and 16-bit operations?
The bit size (8-bit, 16-bit, 32-bit) of a microprocecessor is determined by the hardware, specifically the width of the data bus. The Intel 8086 is a 16-bit processor because it can move 16 bits at a time over the data bus. The Intel 8088 is an 8-bit processor even though it has an identical instruction set.
What is a 16-bit word?
A byte is eight bits, a word is 2 bytes (16 bits), a doubleword is 4 bytes (32 bits), and a quadword is 8 bytes (64 bits).
How does 16bit work?
16-bit is a computer hardware device or software program capable of transferring 16 bits of data at a time. For example, early computer processors (e.g., 8088 and 80286) were 16-bit processors, meaning they were capable of working with 16-bit binary numbers (decimal number up to 65,535).