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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 many bytes are there for jump instruction in 8085?
There are 74 instructions in the 8085 microprocessor.
Why 8086 has 6 byte que?
Because that's how Intel designed it. They chose a 6 byte queue in the 8086 in order to optimize speed versus latency of the execution unit versus the bus interface unit. The decision for 6 bytes, as compared to 4 or 8 or some other number was a cost tradeoff and a recognition of the average mix of instruction execution cycle times in a typical processing thread.
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.
A PC relative mode branch instruction is stored in memory at address 620 The branch is made to location 530 the address field in the instruction is 10 bits long what is the binary value of the inst?
Copied from discussion, as no response has been received from the discussion... There is no branch or jump instruction in the 8085 or 8086/8088 that has a 10 bit address field. Please specify what microprocessor to which you are referring.
How do you interface keyboard with 8086?
first connect the 8255 to the 8086 microprocessor and configure it using the CWR then connect the key board to the 8255
How do you find HEX code in 8086 microprocessor?
There are many instructions in the 8085. To find the hex code for a particular instruction, you need to look at the data sheet. For more information, please see the Related Link below.
What is the need for timing diagram in microprocessor?
The need for a timing diagram for a microprocessor is, primarily, to allow you to properly design the interface logic that will support the microprocessor. You need to know what lines are used to execute various data transfers, what are the timing of those lines with respect to each other, and how the microprocessor expects the external logic to behave. You can also use the timing diagram to understand how the microprocessor functions and, particularly, to know how long each instruction will take.
What jmp instruction assembles if distance is 0020h bytes?
If the distance for a JMP instruction is 0020h bytes, it typically assembles to a short jump instruction (if the target is within a certain range) or a near jump instruction. In this case, a near jump would be used, which consists of the opcode followed by a 16-bit offset. The exact opcode will depend on the assembly language and architecture, but for x86, a near JMP could be represented as EB for a short jump or E9 followed by the relative address for a long jump.
How many bytes consists of ATM cell?
53 bytes long
What is the sizeof long int?
The sizeof long int is platform-dependent, often 4 bytes or 8 bytes.
What will be the content of program counter of 8085 mpu has fetched machine code located at the memory location 205FH?
It depends on whether the machine code is one, two, or three bytes long, and on whether or not the instruction transferred control to another location. In the case of a non-jump single byte instruction, the PC will have a value of 2060H after the instruction is complete, and it will be 2061H or 2062H after a two or three byte instruction. In the case of a jump, call, or interrupt, the PC will depend on the instruction.
