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What is the length of the instruction queue in 8086?
6 bytes
Why the length of instruction queue is 6 bytes?
increases speed
What is the size of the instruction queue in 8088?
no
What is the maximum length of an instruction in bytes for the 8086 based IBM PC?
pata nai
When the microprocessor completes an instruction what happens?
it goes to queue for next instruction
What is the size of the instruction queue?
32 byte
What is the size of the instruction queue in 8086?
In 8086 the instruction queue is 6 byte long. This is because even the longest 8086 instruction is 6 byte long. Thus it is possible to prefetch even the longest instruction in the instruction set.
How large is the instruction queue of the 8088?
32 byte
What is size of instruction queue of 8086?
6 bytes
What is the difference between a pipe and message queue?
Queue is for fixed length communication where as pipes are varaible lenght. Queue is for fixed length communication where as pipes are varaible lenght.
What is opcode fetch?
The process of transferring instruction codes from memory location to instruction queue register is called opcode fetch.
Why is size of instruction queue of 8086 fixed to 6 bytes?
An instruction queue is used in the 8086 to speed up the average time it takes to process an instruction. Some instructions are faster than the bus, while some are slower. If the CPU had to wait for all of the instructions, there would be gaps of time where the CPU is doing nothing. The queue helps to eliminate that gap by prefetching instructions in the hope that they will be ready for use when the CPU gets to them.
