Divide 16 bit numbers by an 8 bit numbers
Introduction to Assembly language:
Assembly level language is the low level programming language which is used to interact with the machine architecture.
As we are aware, every computer system has a micro processor which understands only the string of 0s and 1s. These are called machine level instructions.These machine level instructions are very difficult and complex to understand and code. Hence a low level assembly language was designed to handle various operations in symbolic code. This requires less data and improves execution speed.
This assembly code is converted into executable machine instructions by a utility program. This is called as assembler. This whole conversion process is referred as assembly.
Algorithm :
Program :
|
1 |
<span style="font-family: arial, helvetica, sans-serif; font-size: 14pt; color: #000000;"><code>.model small <br/> .data <br/> a dw 000FH <br/> b db 08H <br/> .code <br/> mov ax, @data ; Initialize data section <br/> mov ds, ax <br/> mov ax, a ; Load number1 in ax <br/> mov bl, b ; Load number2 in bl <br/> div bl ; divide numbers. Quotient in al and Rem in ah <br/> mov ch, 04h ; Count of digits to be displayed <br/> mov cl, 04h ; Count to roll by 4 bits <br/> mov bx, ax ; Result in reg bh <br/> rol bx, cl ; roll bl so that msb comes to lsb <br/> mov dl, bl ; load dl with data to be displayed <br/> and dl, 0fH ; get only lsb <br/> cmp dl, 09 ; check if digit is 0-9 or letter A-F <br/> jbe l4 <br/> add dl, 07 ; if letter add 37H else only add 30H <br/> add dl, 30H <br/> mov ah, 02 ; Function 2 under INT 21H (Display character) <br/> int 21H <br/> dec ch ; Decrement Count <br/> jnz l2 <br/> mov ah, 4cH ; Terminate Program <br/> int 21H <br/> end <br/></code></span> |
You can find more assembly language codes here.
Source projectgeek.com
