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Justify RST instruction can be called 1 byte Call instruction?
The RST instruction is a 1 byte opcode with a 3 bit imbedded operand. There are 8 different RST instructions. Each pushes the PC on the stack, and loads the PC with the operand's value times 8. (0H, 8H, 10H, 18H, etc.)Pushing the PC on the stack and loading a new value into the PC is exactly what a CALL instruction does, so the RST instruction is a 1 byte CALL instruction. The difference between RST and CALL is that CALL is a 3 byte instruction which can go anywhere in memory in one instruction.
Mention any one byte call instruction and the address to which it is points to?
RST 2 is one example of a one byte call instruction. It points to 0010H.
Which is the longest instruction in 8085 instruction set?
CALL, requiring 18 clock cycles.
Which is the long instruction in 8085 instruction?
The CALL instruction uses 18 clock cycles. 3x3 fetch, 2x3 store, 1x1 decode, 2x1 decrement.
Difference between JUMP and CALL instructions?
the difference is that jump changes the eip pointer register to another memory location and continues the execution from the point it jumped. the call is like a function call in languages like C because it saves the memory location of the next instruction to the stack, so then with a ret instruction you can pop out from the stack that saved memory location to jump back again exactly after the call event.
What is the difference between system call and trap?
A system call is started with some form of trap-instruction.
What do we call an instruction that makes small things look larger?
Microscopes
Need a instruction manual for weight watcher scale?
Call them to ask for one.
Why call instruction in 8085 microprocessor have 18 state and how its operate?
The CALL InstructionOpcode OperandCALL 16-bit memory addressof a subroutineIt is a 3-byte instruction that transfers the program sequence to a subroutineSaves the content of the PC (Program Counter-16-bit register) , the address of the next instruction , on the stackDecrements the stack pointer register by 2Jumps unconditionally to the memory location specified by the 2nd and 3rd bytes.This instruction is accompanied by a RETURN instruction in the subroutine
What is a trap instruction?
A trap instruction is a software interrupt. It's generated by an error or by a user program when it needs the operating system to perform an operation (a system call).
What is the need of instruction pointer?
IP(instruction Pointer) is a processor Register IP store the offset address of the next instruction IP can be modified by Jump & call condition IP can Increment by 1,2,3.......bytes Regard:tiger_ucet@yahoo.com
How do you hardwire under cabinet lights?
Instruction should have been provided... or call an electrician
