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LENGTH : Byte Length of a Label:
This directive is not available in MASM. This is used to mention to the length of a data array or a string.
MOV CX. LENGTH ARRAY
This statement is when assembled will substitute the length of the array ARRAY in bytes, in the instruction.
LOCAL the variables, labels, constants or procedures declared LOCAL in a module are to be used only by that module. At a later time, some other module can be declare specific data type LOCAL, which is previously declared LOCAL by another module or modules.
Thus the similar label may serve different purposes for type different modules of a program. Having a single declaration statement, a number of variables may be declared local, as shown.
LOCAL a, b, DATA, ARRAY, ROUTINE
Assume that the registers are initialized to EAX=12345h,EBX =9528h ECX=1275h,EDX=3001h sub AH,AH sub DH,DH mov DL,AL mov CL,3 shl DX,CL shl AX,1 add DX,AX
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The 486 Introduced in the year 1989 the 80486 did not feature any radically new processor technology. Instead, it joints a 386 processor, a cache memory controller and a math c
LDS/LES Instruction execution : LAHF : Load AH from Lower Byte of Flag: - This instruction loads the AH register with the lower byte of the flag register. This instruction ca
2. Write a program to separate out positive and negative numbers from a given series of 16-bit hexadecimal numbers.
Example : Write a program to move the contents of the memory location 0500H to BX and also to register CX. Add immediate byte 05H to the data residing in memory location, whose ad
RISC Characteristics : The concept of RISC architecture include an attempt to reduce execution time by make simple the instruction set of the computer. The main c
LODS : Load String Byte or String Word:- The LODS instruction loads AL/AX register by the content of a string pointed to by DS:SI register pair. The SI is automatically modifie
You have to write a subroutine (assembly language code using NASM) for the following equation.
Arithmetic Instruction : These instructions are usually perform the arithmetic operations, like subtraction ,multiplication, addition, and division along with th
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