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Print 3 single digit input to descending order.asm
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; @author: Nilay Chandra Barman (https://github.com/Nilaycb)
; Copyright (c) 2019, All rights reserved.
; Copyrights licensed under the GNU AGPLv3 License.
.MODEL SMALL
.STACK 100H
.DATA
MSG1 DB "Enter the first number: $"
MSG2 DB "Enter the second number: $"
MSG3 DB "Enter the third number: $"
RSLT1 DB "The 1st output is: $"
RSLT2 DB "The 2nd output is: $"
RSLT3 DB "The 3rd output is: $"
.CODE
MAIN PROC
MOV AX,@DATA
MOV DS,AX
MOV AH,9
MOV DX,OFFSET MSG1
INT 21H
MOV AH,1
INT 21H
MOV BL,AL
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET MSG2
INT 21H
MOV AH,1
INT 21H
MOV CH,AL
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET MSG3
INT 21H
MOV AH,1
INT 21H
MOV CL,AL
CMP BL,CH
JGE CHECK1
JMP CHECK2
CHECK1:
CMP CL,CH
JLE OUT1
JMP CHECK3
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
OUT1:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
JMP EXIT
CHECK3:
CMP CL,BL
JG OUT2
JMP OUT3
OUT2:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
JMP EXIT
OUT3:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
JMP EXIT
CHECK2:
CMP BL,CH
JL CHECK4
JMP EXIT
CHECK4:
CMP CL,BL
JLE OUT4
JMP CHECK5
OUT4:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
JMP EXIT
CHECK5:
CMP CL,CH
JG OUT5
JMP OUT6
OUT5:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
JMP EXIT
OUT6:
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT1
INT 21H
MOV AH,2
MOV DL,CH
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT2
INT 21H
MOV AH,2
MOV DL,CL
INT 21H
MOV AH,2
MOV DL,0AH
INT 21H
MOV DL,0DH
INT 21H
MOV AH,9
MOV DX,OFFSET RSLT3
INT 21H
MOV AH,2
MOV DL,BL
INT 21H
JMP EXIT
EXIT:
MOV AH,4CH
INT 21H
MAIN ENDP
END MAIN
;LOGIC
;
;A = BL
;B = CH
;C = CL
;
;
;A >= B:
; C <= B CHECK1
; == A B C (OUT1)
;
; C > A CHECK3
; == C A B (OUT2)
;
; == A C B (OUT3)
;
;CHECK2
;A < B:
; C <= A CHECK4
; == B A C (OUT4)
;
; C > B CHECK5
; == C B A (OUT5)
;
; == B C A (OUT6)