PROCEDURE TO DISPLAY CHARACTERS IN MEMORY

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                       AUTHOR: ANUEBUNWA VICTOR OGECHUKWU                                                        

                    PROCEDURE TO DISPLAY CHARACTERS IN MEMORY                                                   
 Procedure DISPLAY displays characters in memory starting from a given address till it encounters CARRIAGE-RETURN.
 ............................................HOW TO USE..........................................................
 (1) Load the starting address of the memory into SI register.                                                   
 (2) Call DISPLAY.                                                                                           
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;         SAMPLE PROGRAM
.MODEL SMALL
.STACK
.DATA
    AVON DB ?
.CODE
START:        MOV AX, @DATA
            MOV DS, AX
           
            MOV AH, 3FH                ;Input string function
            LEA DX, AVON
            INT 21H
           
            LEA SI, AVON
            CALL DISPLAY
           
            MOV AH, 4CH
            INT 21H

;;Procedure DISPLAY
DISPLAY PROC
            PUSH AX
            PUSH DX
            PUSH SI
            PUSHF
           
            MOV AH, 02H
DLOOP1:        MOV DL, [SI]            ;Moves character at current address to DL
            CMP DL, 13
            JE XDLOOP1                ;Exits loop if DL contains CARRIAGE-RETURN
            INT 21H                    ;Else, displays character
            INC SI                    ;Moves to next address
            JMP DLOOP1                ;Continues loop
           
XDLOOP1:    POPF
            POP SI
            POP DX
            POP AX
            RET
DISPLAY ENDP
;End of procedure DISPLAY
   
END START

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