17.ASM

TITLE 'Factorial'
.MODEL SMALL
.STACK 100H
.DATA
.CODE

REC PROC
MOV AX,1	;AX holds products
TOP:
MUL CX		;AX=AX*CX=1*5=5
LOOP TOP
RET
REC ENDP

MAIN PROC			
	MOV CX,5
	CALL REC
	MOV AH,4CH
	INT 21H
MAIN ENDP
END MAIN