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There are 19 instructions in the 8086/8088 that are used for arithmetic...
ADD - Add
ADC - Add with carry
INC - Increment
AAA - ASCII adjust for add
DAA - Decimal adjust for add
NEG - Change sign
SUB - Subtract
SBB - Subtract with borrow
DEC - Decrement
AAS - ASCII adjust for subtract
DAS - Decimal adjust for subtract
MUL - Unsigned multiply
IMUL - Signed multiply
AAM - ASCII adjust for multiply
DIV - Unsigned divide
IDIV - Signed divide
AAD - ASCII adjust for divide
CBW - Convert byte to word
CWQ - Convert byte to double word
What else can I help you with?
What is responsible for performing arithmetic and logical instructions in a computer?
Microprocessor has a component known as ALU(arithmatic and logical unit) whcih is used to perform operations such as arithmetic includes-add,sub,mul(8086),div(8086) logical operations include-LOGICAL AND,LOGICAL OR,X-OR all thsi operations is perofrmed inside the ALU itself with the help of other components such as control unit and registers used as for the storage purposes Anand bhat(mca@kiit-870024)
When does the overflow flag in 8086 set?
In the 8086/8088, the overflow flag is set when the result of an arithmetic instruction exceeds the bounds of the signed representation of a number. This is not the same as the carry flag, which is used for the unsigned representation. Both flags get set as needed. You decide which one to pay attention to.
Which IC is used as clock generator in 8086?
The 8086 Microprocessor operate to require frequency that is provided by clock generator to 8086 Microprocessor and also Synchronization various component of 8086.
Why do you go for ascii adjust instructions in 8086 micro processor?
The ASCII adjust instructions in the 8086 microprocessor are used to implement CARRY processing when numeric data is represented in an unpacked form in ASCII. With them, you can create arbitrary precision math operations. The three flavors of data are binary, decimal (packed) and ASCII (decimal unpacked), not including floating point.
Which one launch first 8088 or 8086?
1978 - 8086 1979 - 8088 First IBM PC used 8088. I think later low end IBM PC's used 8086.
What is an ax register?
It is one of 4 registers called general purpose registers Ax has a another name witch is (accumulator) it used in arithmetic and logic operation and store data from I/o port in microprocessors like 8086/8088
Why 2 gnd are used in microprocessor 8086?
Two ground pins are used in the 8086 microprocessor to increase the bus pull-down current capacity.
What are the special uses of DX register in 8086?
In the 8086 microprocessor, the DX register has several special uses. It is often paired with the AX register for multiplication and division operations, where DX holds the high-order bits of the result in multiplication and the remainder in division. Additionally, DX is used in I/O operations, particularly for port addresses in conjunction with the IN and OUT instructions. It also serves as a pointer for data in certain string manipulation instructions.
What are the functions of execution unit in 8086 Intel?
Basically the function of execution unit in 8086 is to perform all arithmetic and logic operations.It tells the Bus Interface unit(BIU) where to fetch instructions and data from.It has 4 components:Control circuitry,ALU,Flag registers and general purpose registers. 1.control circuits-it directs all the internal operations. 2.ALU-performs all logic operations. 3.general purpose registers-used to store data during execution. 4.flag registers-it has a 16bit flag register containing 9 flags that are set for certain conditions during any operation.Ex.carry flag(whenever there is a carry). It also has a decoder to decode the fetched instructions.
How did the Romans do there arithmetic?
They used an abacus calculating device to solve complicated arithmetic problems.
Where can Arithmetic Progressions be used?
everywhere!!
What is the use of the source index in a 8086 processor?
The Source Index (SI) register is used by certain string type instructions to read from memory. Typically, the instruction is "repeated" with a repeat prefix to iterate through memory until some condition is met.
