Reverse String Using Stack in Assembly 8086

 .model small
 .stack 100h
 .code
 main proc
  
    mov cx,0
  
    pushin:
         mov ah,01h
         int 21h
         mov bl,al
       
         cmp bl, 0Dh
       
         je output
        
         push bx
       
         inc cx
       
         jmp pushin 
       
     output:
   
     mov ah,02h
     mov dl,0Dh
     int 21h
     mov dl, 0ah
     int 21h
   
   
     popout:
     pop dx
     int 21h
     loop popout
   
 
   
  main endp
 end main


Output:

televisions series erd

There are televisions series, which have names, networks and production companies, and are identified by the name and network. • A television series has one or more seasons, which are identified by the number of the season. A season also has the number of episodes and the year the season starts. No season can exist without a corresponding series. • A season has one or more episodes, identified by episode number, which is unique within the season. Each episode also has a title and a length. No episode can exist without a corresponding season. • An actor is identified by name and birth date, and also has a nationality. • A director is also identified by name and birth date, and has a talent agency that represents him or her. • An actor can appear as a “regular” on a television series or a guest star on an episode. • An episode has one director. A director can direct one or more episodes. 

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Scenario to ERD

 A Bus Company owns a number of busses. Each bus is allocated to a particular route, although some routes may have several busses. Each route passes through a number of towns. One or more drivers are allocated to each stage of a route, which corresponds to a journey through some or all of the towns on a route. Some of the towns have a garage where busses are kept and each of the busses are identified by the registration number and can carry different numbers of passengers, since the vehicles vary in size and can be single or double-decked. Each route is identified by a route number and information is available on the average number of passengers carried per day for each route. Drivers have an employee number, name, address, and sometimes a telephone number.

Scenario to ERD

Suppose you are given the following requirements for a simple database for the National

Hockey League (NHL):

• · the NHL has many teams,
• · each team has a name, a city, a coach, a captain, and a set of players,
• · each player belongs to only one team,
• · each player has a name, a position (such as left wing or goalie), a skill level, and a set
• of injury records,
• · a team captain is also a player,
• · a game is played between two teams (referred to as host_team and guest_team) and has a date (such as May 11th, 1999) and a score (such as 4 to 2).

Construct a clean and concise ER diagram for the NHL database using the Chen notation

as in your textbook. List your assumptions and clearly indicate the cardinality mappings

as well as any role indicators in your ER diagram.

Scenario to ERD

A bus company wants to keep track of its bus routes and schedules. Design an ER diagram for the database according to the following description. Identify all constraints and keys: Each bus route has a route number, a departure station and a destination station. For each bus route, there is a schedule, which records the departure times of buses. For each departure time of each route, a driver and a bus can be assigned (however this is not necessary - information about the driver or the bus may sometimes be missing). A driver has an employee Id, a name and a phone number. A bus is identified by its license number. The database also records the seating capacity of each bus.

Scenario to ERD

UPS prides itself on having up-to-date information on the processing and current location of each shipped item. To do this, UPS relies on a company-wide information system. Shipped items are the heart of the UPS product tracking information system. Shipped items can be characterized by item number (unique), weight, dimensions, insurance amount, destination, and final delivery date. Shipped items are received into the UPS system at a single retail center. Retail centers are characterized by their type, uniqueID, and address. Shipped items make their way to their destination via one or more standard UPS transportation events (i.e., flights, truck deliveries). These transportation events are characterized by a unique scheduleNumber, a type (e.g, flight, truck), and a eliveryRoute.

Please create an Entity Relationship diagram that captures this information about the UPS
system. Be certain to indicate identifiers and cardinality constraints.

Scenario to Entity Relational Diagram

Bangladesh is bestowed by spectacular Natural Beauties. We can see the glimpse of natural beauties through our numerous tourist spot. Tourist spots which are at country side rather than close to city are aesthetically more beautiful. Simple inhabitants, beautiful landscapes, serenity are some of remarkable features of these places. We can differentiate tourist spots by their names. Visiting country side spots are less costly than city side’s spots. You can visit these spots by your own arrangements or by different travel agencies. Agencies are uniquely identified by their agency id. Each travel agencies normally operates on a particular region. These regions normally comprises of several tourist spots within short radius. That’s why travel with these agencies are very helpful. Bangladesh Parjatan Corporation (BPC) is trying to improve the ambience of these spots and also takes steps to promulgate these spots not only towards local tourists but also foreign tourists. Tourists travel different tourist’s spots and they are identified by their passport number.

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Assembly Program to Check Input is Digit , Capital letter or Others.

 org 100h
.data
msg1 db 'capital$'
msg2 db 'digital$'
msg3 db 'others$'

.code

main proc

;input

mov ah, 01h
int 21h

mov bl, al   ; move A to bl register


cmp bl, 30h  ; compare bl with ascii value of 01
jge print    ; if greater or equal jump to label print

print:       ; label print

cmp bl, 39h  ; compare bl with ascii value of 09
jle print1   ; if less or equal jump to label print1
jg end       ; if greater or equal jump to label print


; new line

mov ah, 02h    ; character output function
mov dl, 0Ah    ; line feed
int 21h        ; dos interrupt
mov dl ,0Dh    ; Carriage return
int 21h        ; dos interrupt
       
print1:
mov ax, @data
mov ds, ax
mov ah, 09h
lea dx, msg2
int 21h
ret

end:

cmp bl, 41h
jge print2

print2:
cmp bl, 5Ah
jle print3
jge end1

print3:
mov ax, @data
mov ds, ax
mov ah, 09h
lea dx, msg1
int 21h
ret

end1:
mov ax, @data
mov ds, ax
mov ah, 09h
lea dx, msg3
int 21h
ret


     
main endp
endp

Assembly Program for Addition two numbers. Number Between 0-9.

• Assembly Code for Addition  of 1 digit number(0-9).

org 100h

; Addition  of 1 digit

.code

; input 1

mov ah, 01h  ; first character input function

int 21h

mov bl, al   ; move the content of al (1st number) to bl register 

; new line

mov ah, 02h  ; character ouput function

mov dl, 0Ah  ; line feed

int 21h

mov dl, 0Dh  ; carriage return

int 21h

; Input 2

mov ah, 01h   ; second character input function

int 21h

mov cl, al    ; move the content of al (2nd number) to cl register

add bl, cl    ; addition of two numbers 

; Newline

mov ah, 02h  ; character ouput function

mov dl, 0Ah  ; line feed

int 21h

mov dl, 0Dh  ; carriage return

int 21h

; Output

sub bl, 30h  ; convert to real number entered

mov dl, bl   ; move the content of bl (2nd number) to dl register

int 21h  

endp

ret

Assembly Code to Solve the Equation 3A+B-2C.

1. Assembly Code to Solve the Equation 3A+B-2C.

 org 100h 


.code

main proc

; input 1

mov ah, 01h  ; Input A
int 21h 

mov bl, al   ; move A to bl register


add bl, al   ; 2A
add bl, al   ; 3A
            
            
; input 2 

mov ah, 01h   ; Input B
int 21h
mov cl, al    ; move B to cl register

add bl, cl    ; 3A+B

; input 3

mov ah, 01h    ; Input C
int 21h
mov cl, al     ; move C to cl register

add cl, al     ; 2C
sub bl, cl     ; 3A+B-2C

; new line

mov ah, 02h
mov dl, 0Ah    ; line feed
int 21h
mov dl ,0Dh    ; Carriage return
int 21h 


; Output 

sub bl, 30h    ;convert to real number entered 
mov dl ,bl  
int 21h
        
main endp
endp