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# Program that lets the user enter time in seconds, up to 65535, and outputs the time as hours, minutes, and seconds. Use Decimal input.............

Posted By: Easy Tutor     Category: Assembly Language     Views: 21818

## Code for Program that lets the user enter time in seconds, up to 65535, and outputs the time as hours, minutes, and seconds. Use Decimal input............. in Assembly Language

``` .MODEL SMALL
.STACK 100H

.DATA
PROMPT_1  DB  'Enter the time in seconds up to 65535 = \$'
PROMPT_2  DB  0DH,0AH,'The time in hh:mm:ss format is = \$'
SEPARATOR DB  ' : \$'

.CODE
MAIN PROC
MOV AX, @DATA                ; initialize DS
MOV DS, AX

LEA DX, PROMPT_1             ; load and display the string PROMPT_1
MOV AH, 9
INT 21H

CALL INDEC                   ; call the procedure INDEC

PUSH AX                      ; puah AX onto the STACK

LEA DX, PROMPT_2             ; load and display the string PROMPT_2
MOV AH, 9
INT 21H

POP AX                       ; pop a value from STACK into AX

XOR DX, DX                   ; clear DX
MOV CX, 3600                 ; set CX=3600
DIV CX                       ; set AX=DX:AX\CX , DX=DX:AX%CX

CMP AX, 10                   ; compare AX with 10

PUSH AX                      ; push AX onto the STACK

MOV AX, 0                    ; set AX=0
CALL OUTDEC                  ; call the procedure OUTDEC

POP AX                       ; pop a value from STACK into AX

@HOURS:                      ; jump label
CALL OUTDEC                  ; call the procedure OUTDEC

MOV AX, DX                   ; set AX=DX

PUSH AX                      ; push AX onto the STACK

LEA DX, SEPARATOR            ; load and display the string SEPARATOR
MOV AH, 9
INT 21H

POP AX                       ; pop a value from STACK into AX
XOR DX, DX                   ; clear DX

MOV CX, 60                   ; set CX=60
DIV CX                       ; set AX=DX:AX\CX , DX=DX:AX%CX

CMP AX, 10                   ; compare AX with 10

PUSH AX                      ; push AX onto the STACK

MOV AX, 0                    ; set AX=0
CALL OUTDEC                  ; call the procedure OUTDEC

POP AX                       ; pop a value from STACK into AX

@MINUTES:                    ; jump label
CALL OUTDEC                  ; call the procedure OUTDEC

MOV BX, DX                   ; set BX=DX

LEA DX, SEPARATOR            ; load and display the string SEPARATOR
MOV AH, 9
INT 21H

MOV AX, BX                   ; set AX=BX

CMP AX, 10                   ; compare AX with 10

PUSH AX                      ; push AX onto the STACK

MOV AX, 0                    ; set AX=0
CALL OUTDEC                  ; call the procedure OUTDEC

POP AX                       ; pop a value from STACK into AX

@SECONDS:                    ; jump label
CALL OUTDEC                  ; call the procedure OUTDEC

MOV AH, 4CH                  ; return control to DOS
INT 21H
MAIN ENDP

;**************************************************************************;
;**************************************************************************;
;-------------------------  Procedure Definitions  ------------------------;
;**************************************************************************;
;**************************************************************************;

;**************************************************************************;
;-------------------------------  INDEC  ----------------------------------;
;**************************************************************************;

INDEC PROC
; this procedure will read a number indecimal form
; input : none
; output : store binary number in AX
; uses : MAIN

PUSH BX                        ; push BX onto the STACK
PUSH CX                        ; push CX onto the STACK
PUSH DX                        ; push DX onto the STACK

@SKIP_BACKSPACE:               ; jump label
MOV AH, 2                      ; set output function
MOV DL, 20H                    ; set DL=' '
INT 21H                        ; print a character

XOR BX, BX                     ; clear BX
XOR CX, CX                     ; clear CX
XOR DX, DX                     ; clear DX

MOV AH, 1                      ; set input function
INT 21H                        ; read a character

CMP AL, "-"                    ; compare AL with "-"

CMP AL, "+"                    ; compare AL with "+"

@MINUS:                        ; jump label
MOV CH, 1                      ; set CH=1
INC CL                         ; set CL=CL+1

@PLUS:                         ; jump label
MOV CH, 2                      ; set CH=2
INC CL                         ; set CL=CL+1

@INPUT:                        ; jump label
MOV AH, 1                    ; set input function
INT 21H                      ; read a character

@SKIP_INPUT:                 ; jump label

CMP AL, 0DH                  ; compare AL with CR

CMP AL, 8H                   ; compare AL with 8H

CMP CH, 0                    ; compare CH with 0

CMP CL, 0                    ; compare CL with 0

@JUMP_TO_END_INPUT:          ; jump label

@CHECK_REMOVE_MINUS:         ; jump label

CMP CH, 1                    ; compare CH with 1

CMP CL, 1                    ; compare CL with 1

@CHECK_REMOVE_PLUS:          ; jump label

CMP CL, 1                    ; compare CL with 1

@REMOVE_PLUS_MINUS:          ; jump label
MOV AH, 2                  ; set output function
MOV DL, 20H                ; set DL=' '
INT 21H                    ; print a character

MOV DL, 8H                 ; set DL=8H
INT 21H                    ; print a character

@MOVE_BACK:                  ; jump label

MOV AX, BX                   ; set AX=BX
MOV BX, 10                   ; set BX=10
DIV BX                       ; set AX=AX/BX

MOV BX, AX                   ; set BX=AX

MOV AH, 2                    ; set output function
MOV DL, 20H                  ; set DL=' '
INT 21H                      ; print a character

MOV DL, 8H                   ; set DL=8H
INT 21H                      ; print a character

XOR DX, DX                   ; clear DX
DEC CL                       ; set CL=CL-1

@NOT_BACKSPACE:              ; jump label

INC CL                       ; set CL=CL+1

CMP AL, 30H                  ; compare AL with 0

CMP AL, 39H                  ; compare AL with 9

AND AX, 000FH                ; convert ascii to decimal code

PUSH AX                      ; push AX onto the STACK

MOV AX, 10                   ; set AX=10
MUL BX                       ; set AX=AX*BX
MOV BX, AX                   ; set BX=AX

POP AX                       ; pop a value from STACK into AX

ADD BX, AX                   ; set BX=AX+BX
JC @ERROR

CMP CL, 5
JG @ERROR

@ERROR:                        ; jump label

MOV AH, 2                      ; set output function
MOV DL, 7H                     ; set DL=7H
INT 21H                        ; print a character

XOR CH, CH                     ; clear CH

@CLEAR:                        ; jump label
MOV DL, 8H                   ; set DL=8H
INT 21H                      ; print a character

MOV DL, 20H                  ; set DL=' '
INT 21H                      ; print a character

MOV DL, 8H                   ; set DL=8H
INT 21H                      ; print a character

@END_INPUT:                    ; jump label

CMP CH, 1                      ; compare CH with 1
NEG BX                         ; negate BX

@EXIT:                         ; jump label

MOV AX, BX                     ; set AX=BX

POP DX                         ; pop a value from STACK into DX
POP CX                         ; pop a value from STACK into CX
POP BX                         ; pop a value from STACK into BX

RET                            ; return control to the calling procedure
INDEC ENDP

;**************************************************************************;
;--------------------------------  OUTDEC  --------------------------------;
;**************************************************************************;

OUTDEC PROC
; this procedure will display a decimal number
; input : AX
; output : none
; uses : MAIN

PUSH BX                        ; push BX onto the STACK
PUSH CX                        ; push CX onto the STACK
PUSH DX                        ; push DX onto the STACK

CMP AX, 0                      ; compare AX with 0

PUSH AX                        ; push AX onto the STACK

MOV AH, 2                      ; set output function
MOV DL, "-"                    ; set DL='-'
INT 21H                        ; print the character

POP AX                         ; pop a value from STACK into AX

NEG AX                         ; take 2's complement of AX

@START:                        ; jump label

XOR CX, CX                     ; clear CX
MOV BX, 10                     ; set BX=10

@OUTPUT:                       ; loop label
XOR DX, DX                   ; clear DX
DIV BX                       ; divide AX by BX
PUSH DX                      ; push DX onto the STACK
INC CX                       ; increment CX
OR AX, AX                    ; take OR of Ax with AX

MOV AH, 2                      ; set output function

@DISPLAY:                      ; loop label
POP DX                       ; pop a value from STACK to DX
OR DL, 30H                   ; convert decimal to ascii code
INT 21H                      ; print a character

POP DX                         ; pop a value from STACK into DX
POP CX                         ; pop a value from STACK into CX
POP BX                         ; pop a value from STACK into BX

RET                            ; return control to the calling procedure
OUTDEC ENDP

;**************************************************************************;
;--------------------------------------------------------------------------;
;**************************************************************************;

END MAIN

;**************************************************************************;
;**************************************************************************;
;------------------------------  THE END  ---------------------------------;
;**************************************************************************;
;**************************************************************************;
```
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 Easy Tutor author of Program that lets the user enter time in seconds, up to 65535, and outputs the time as hours, minutes, and seconds. Use Decimal input............. is from United States. Easy Tutor says Hello Friends,I am Free Lance Tutor, who helped student in completing their homework. I have 4 Years of hands on experience on helping student in completing their homework. I also guide them in doing their final year projects.I have share many programs on this website for everyone to use freely, if you need further assistance, than please contact me on easytutor.2ya [at the rate] gmail [dot] comI have special discount scheme for providing tutor services. I am providing tutor service to students from various contries, currently most of my students are from United States, India, Australia, Pakistan, Germany, UK and Canada. I am also here to expand my technical network to receive more opportunity in my career, make friends to help them in resolving their technical problem, learn and share my knowledge, If you like to be my friend, Please send me friend request.Thanks,Happy Programming :) View All Articles

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