28-01-2016, 12:53 PM
Program flow control.
Conditional jumps and conditional flags.
Compare Instructions.
Unconditional jump.
Logic And Shift/Rotate Instructions.
*Logical Operations.
*Shift and Rotate operations .
Digital packing program.
Program flow control nothing but a flow of executing an instructions step wise step.
There are two ways :
Call to subroutines.
Returns from them break straight-line sequencing.
Call to subroutines
Subroutines :- Necessary to perform a particular subtask many times on different data values such a subtask is called a subroutines.
*When a program branches to a subroutines we say that it is called call subroutines.
Returns from them break straight-line sequencing :-
The processor controls circuits use the information in pc to fetch & execute instructions one at a time ,in the order of increasing address is called straight line sequencing.