program to find factorial of given numbers

following is the assembly language program to find factorial of given numbers

MOV SI , 2000
MOV DI,2002
MOV CX,[SI]
MOV AX,CX ; Move contents of CX to contents of AX register
DEC CX ; Decrement CX
UP: MUL CX
DEC CX ; Decrement CX
JNZ; UP ; Jump if not zero
MOV [DI], AX ; Load the values of AX into location given by DI
INT A5; Halt the program

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