Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
nasm assembly language program consider a sequence of 19 strictly positive decimal digits most likely stored in an array there are
assembly language example programswe studied the entire instruction set of 808688 pseudo-ops and assembler directives we have explained the process
programming with an assemblerthe procedure of hand-coding 8086 programs is somewhat tiresome hence generally a programmer may find it hard to get a
short the short operator denoted to the assembler that only one byte is needed to code the displacement for a jump for example displacement
seg segment of a label-the seg operator is which is used to decide the segment address of the variable label or procedure and substitutes the
org origin-the org directive directs the assembler to begin the memory allotment for the specific segment code or block from the declared
name logical name of a module the name directive which is used to assign a name to an assembly language program module the modulecan now be mention
length byte length of a labelthis directive is not available in masm this is used to mention to the length of a data array or a stringmov cx length
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
group group the related segments-the directive which is used to form logical groups of segments with same purpose or type this isused to inform the
assume assume logical segment name-the assume directive which is used to inform the assembler the specified names of the logical segments to be
dq define quad word- this directive is taken in use to direct the assembler to reserve 4 words 8 bytes of memory for the specified
dw define word-the dw directive serves the same purposes as the db directive but now it makes the assembler which reserves thenumber ofmemory
assembler directives and operatorsthe major advantage of machine language programming is directly that the memory control is in the hands of the
flag manipulation and processor control instructionsthese instructions control the functioning of available hardware inside the processor chip these
ret return from the procedure-at each call instruction the register ip and register cs of the next instruction is pushed to stack before the control
control transfer or branching instructioncontrol transfer instructions transfer the flow of execution of the program to a new address specified in
lods load string byte or string word-the lods instruction loads alax register by the content of a string pointed to by dssi register pair the si is
rep repeat instruction prefix -this instruction is utilized as a prefix to other instructions the instruction in which the rep prefix is provided is
string manipulation instructiona series of words or data bytes are available in memory at consecutive locations to be mention to individually or
test logical compare instruction the test instruction performs bit by bit logical and operation on the 2 operands each bit of the result is then set
logical instruction this type of instructions is utilized for carrying out the bit by bit shift basic logical operations or rotate all of the
div unsigned division- this instruction performs unsigned division operation it divides an unsigned word or double word by a 16-bit or 8-bit operand
cbw convert signed byte to word this instruction converts a signed byte to a signed word in other terms it copies the sign bit of a byte to be