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Function returns a value but sub procedure do not return a value.
Without any function is impossible. So I'll assume you mean any coded function, in which case the predefined function below is your answer.$string = strrev($string);
Branch Instruction A branch (or jump on some computer architectures, such as the PDP-8 and Intel x86) is a point in a computer program where the flow of control is altered. The term branch is usually used when referring to a program written in machine code or assembly language; in a high-level programming language, branches usually take the form of conditional statements, subroutine calls or GOTO statements. An instruction that causes a branch, a branch instruction, can be taken or not taken: if a branch is not taken, the flow of control is unchanged and the next instruction to be executed is the instruction immediately following the current instruction in memory; if taken, the next instruction to be executed is an instruction at some other place in memory. There are two usual forms of branch instruction: a conditional branch that can be either taken or not taken, depending on a condition such as a CPU flag, and an unconditional branch which is always taken. Call Subroutine instructions Call Subroutine instructions and Return From Subroutine instructions within the instruction stream. The first stage stores a return address in a return register when a Call Subroutine instruction is predicted. The first stage predicts a return to the return address in the return register when a Return From Subroutine instruction is predicted. A second stage decodes each Call Subroutine and Return From Subroutine instruction in order to maintain a Return Stack Buffer that stores a stack of return addresses. Each time the second stage decodes a Call Subroutine instruction, a return address is pushed onto the Return Stack Buffer. Correspondingly, each time the second stage decodes a Return From Subroutine instruction, a return address is popped off of the Return Stack Buffer. The second stage verifies predictions made by the first stage and predicts return addresses for Return From Subroutine instructions that were not predicted by the first stage. A third stage executes Return From Subroutine instructions such that the predictions are verified. Finally, a fourth stage retires Return From Subroutine instructions and ensures that no instructions fetch after a mispredicted return address are committed into permanent state. Program interrupt an interrupt is an asynchronous signal from hardware indicating the need for attention or a synchronous event in software indicating the need for a change in execution. A hardware interrupt causes the processor to save its state of execution via a context switch, and begin execution of an interrupt handler. Software interrupts are usually implemented as instructions in the instruction set, which cause a context switch to an interrupt handler similar to a hardware interrupt. Interrupts are a commonly used technique for computer multitasking, especially in real-time computing. Such a system is said to be interrupt-driven. An act of interrupting is referred to as an interrupt request ("IRQ").
Math.sqrt(number) function is used to find the square root of a number.. try it
A procedure is a subroutine that can be called from another part of the program. Procedures can be as small as 2 lines (the definition line, and then the procedure itself), or consist of hundreds of lines.
Both a function and a subroutine are examples of out-of-line execution calls to code. The main difference is that a function call can be part of an expression and returns a value, whereas the subroutine can be called standalone and does not return a value.
A call to a subroutine. A subroutine is a named/labeled set of commands.
* Function * Subroutine * Procedure
A function is essentially a subroutine that is ment to be used by other subroutines.
Function returns a value but sub procedure do not return a value.
in 8085 microprocessor a subroutine is a separate program written aside from main program ,this program is basically the program which requires to be executed several times in the main program. the microprocessor can call subroutine any time using CALL instruction . after the subroutine is executed the subbroutine hands over the program to main program using RET instruction.
Both A function and a Sub carry out a procedure, but only A function returns a result while a Sub does not return a result.
a subroutine is a portion of the code within a larger program which performs a specific function and is independent of remaining code.....delay routines are subroutines used for maintaining the timings of various operations in microprocessor
A Java method is a sequence of statements. It is comparable to a function, subroutine, or procedure in other languages.
go and have agud sleep
No. A branch is akin to a goto statement in procedural programming. The code branches off to a new code segment, never to return. A function call is akin to a subroutine in structured programming. When the subroutine is finished, control is returned to the instruction immediately following the function call, just as if the function's code were inline expanded at the call site.
A subroutine is a procedure call. In other words, a function call.