WebLOOPING: The programming technique used to instruct the microprocessor to repeat tasks is called looping.This task is accomplished by using jump instructions. Classification Of … WebFeb 10, 2024 · To get the loop instruction to work first you have to define a label, set the value in cx which would be the number of times the loop should execute. The LOOP instruction is mainly used to simulate the different loops in HLL. The Loop instructions use the CX register to indicate the loop count.
Loop Instructions of 8086 Microprocessor - Types & Examples
WebJan 19, 2024 · The following code is for assembly 8086, I'm looping using LOOP instruction.. The loop continues forever after CL becomes zero and it changes the CX value to FFFFh. But if I change the value of CL to maximum 06h, the loop stops properly. Moreover, if I remove first LOOP AGAIN it will work fine.. DATA DB 01001100b MOV AL, DATA MOV CL, 08h SUB … WebLOOPNE/LOOPNZ − Used to loop a group of instructions till it satisfies ZF = 0 & CX = 0 JCXZ − Used to jump to the provided address if CX = 0 Interrupt Instructions These instructions … chin\u0027s 8y
Loop Instructions of 8086 Microprocessor - Types & Examples
WebJan 1, 2014 · This happens to work because you write it to DX, not DS, which does nothing: you might as well have done mov ax, 1 / mov dx, 2 for all the effect it has on your program. It's a confusing distraction for beginners, code that shouldn't be there but looks almost like a standard idiom for .exe programs. – Peter Cordes Jul 2, 2024 at 2:30 Add a comment Web1) Start the program by loading the first data into Accumulator. 2) Move the data to a register (B register). 3) Get the second data and load into Accumulator. 4) Add the two … WebJul 26, 2024 · 2) Conditional Jumps. In these types of instructions, the processor must check for the particular condition. If it is true, then only the jump takes place else the normal flow in the execution of the statements is maintained. The ALU operations set flags in the status word (Flag register). The conditional jump statements tests the flag and jump ... chin\u0027s 81