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LABEL :
The Label directive which is used to assign a name to the current content of the location counter. At the beginning of the assembly process, the assembler start a location counter to keep track of memory locations assigned to the program. As the program assembly proceeds, the specific contents of location counter are updated. At the time the assembly process, whenever the assembler across the LABEL directive, itassigns the declared label with the current contents of the location counter. The type of the label ought to be specified, for example whether it is a NEAR or a FAR label, WORD or BYTE label, etc.
A LABEL directive can be used to make a FAR jump as shown. A FAR jump can't be made at a normal label with a colon. The label CONTINUES is used for a FAR jump, if the program contains the below describe statement.
CONTINUE LABEL FAR
The LABEL directive is used to refer to the data segment along with the data type, word or byte as showing.
DATA SEGMENT DATAS DB 5 OH DUP (?) DATA-LAST LABEL BYTE FAR DATA ENDS
After reserving the 50H locations for DATAS, the next location will be assigned a label DATALAST and its type will be far and byte.
You have to write a subroutine (assembly language code using NASM) for the following equation.
LIST p=18f4550 #include org 0x0000 movlw 0x00 _________ movlw 0xFF movwf PORTB end .
I/O interface I/O devices such as displays and keyboards establish communication of computer with outside world. Devices may be interfaced in 2 ways Memory mapped I/O and I/
Zero flag: The next line compares the value in register. A with the value 1. If they are equivalent, the Zero flag is set (to 1). The next line then jumps to start: only if th
Write a program on the assembly language to do the following: 1- Allocate array with 32bit 100 element 2- Prompt the user to enter the maximum or the upper bound of the rando
using 8086 assembly language that interchange upper four bits to lower four bits. assume that data store in byte memory and it written back to same location. and assume the data as
Task One Produce a menu such as the one below (remember to keep to this specification). M E N U 1, Enter Number 1 2, Enter Number 2 3, Display num1 and num2 4, D
CMP: Compare: - This instruction compares the source operand, which can be a register or memory location an immediate data with a destination operand that might be a register or a
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INTO : Interrupt on Overflow:- It is executed, when the overflow flag OF is set. The new contents of IP and CS register are taken from the address 0000:0000 as described in INT
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