8086 assembly program to subtract two 8-bit hexadecimal numbers

 

data segment

num1 db 90h

num2 db 10h

data ends

code segment

start :

assume cs:code, ds:data

mov ax,data

mov ds,ax

mov ax,num1

mov bx,num2

sub ax,bx

mov ah,4ch

int21h

code ends

end start

Block transfer OVERLAPPING 
Block transfer(Simple Program)
Block Transfer(REVERSE ORDER)
Addition of 8-bit  BCD8086 program
addition of 16-bit bcd program
Division of 32/16 bit program
Subtraction of 8-bit program
Subtraction of 8-bit BCD program
Subtraction of 16-bit program
Subtraction of 16-bit BCD program
String reverse 8086 program
block transfer using string
string concatenation
string length calculation
Block Transfer 
Block reverse
Hex to ASCII program 8086
BCD to ASCII program 8086
ASCII to BCD program 8086
BCD to HEX
HEX to BCD

Block transfer in reverse

Block transfer using STRING instruction
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Programs:-

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