The current state of the processor is stored in a register called Processor Status Word(PSW).The PSW contains bits which indicate such things as whether the previous arithmetic operations produced a positive,negative or zero result. If a subtract instruction is followed by a "branch on zero" instruction ,then the branch will be taken if the PSW indicates that the subtraction resulted in a zero. Most loops,such as DO-WHILE,FOR,etc involve incrementing or decrementing a counter and repeating the loop until the counter reaches the limit.Each time the counter is changed,the result is compared with the limit,the PSW is set accordingly,and branch is taken or not depending on the contents of the PSW. The 8086 microprocessor has a 16-bit PSW.Each bit of this PSW is known as a flag and 7 out of these are not used.The 9 flags are classified into control flags and condition flags.
the flag registers of 8086. 16-bits psw. 9bits are active. the rest are don't care.
OF(11)-overflow flag
DF(10)-direction flag
IF(9)-interrupt enable flag
TF(8)-trap flag
SF(7)-sign flag
ZF(6)-zero flag
AF(4)-auxillary carry flag
PF(2)-pariry flag
CF(0)-carry flag
6bits/flags are conditional flags- OF, SF, ZF, AF, PF, CF
3 are control flags- DF, IF, TF
programming status ward.
The 8086 microprocessor has 40 pins.
It is mightily referring to Microprocessor 8086 . I think you saw "8086 microprocessor". The 8086 is nothing it indicates the number of microprocessor same as Digital or analog ic's . 8086 microprocessor has 20 Address buses and 8 data buses which has 1 Mb inbuilt memory for performing several type of airthmatical and logical operation.
queue of 8086 microprocessor is 6 bits
The 8086 Microprocessor operate to require frequency that is provided by clock generator to 8086 Microprocessor and also Synchronization various component of 8086.
it is a 16 bit microprocessor & it has 40 pin .
Pins 1 and 20 in the 8086 microprocessor are (both) power and signal ground (GND).
8086 main application is to evaluate the arithmetic operations in any systems that uses 8086
Two ground pins are used in the 8086 microprocessor to increase the bus pull-down current capacity.
Which microprocessor accepts the program written for 8086 without any changes?
Its 16bit microprocessor,and-> the 8086 has a 16bit databus 20bit address bus-> the intel 8086,is designed to operate in two modes namely(1) minimum mode(2) maximum mode
ya possible
The BIOS function in the 8086 microprocessor is called an interrupt function. It is an interrupt function because it is not called by a function call instruction.