Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / vinay m k
PC [program counter] is a register holding the address of
the instruction which needs to be executed next. Its used
to keep track of current execution point - this tracking is
necessary for various reasons and some of these reasons are:
1. While branching or looping destination address is
specified with respect to the current PC value.
2. While branching to a function call current Pc value is
pushed into the stack and retrieved back when retrunign
from the function-call.
3. PC value is strored when servicing an interrupt and
restored back after execution of ISR.
http://www.vinaymk.com/tutorials
| Is This Answer Correct ? | 132 Yes | 37 No |
Post New Answer View All Answers
Give examples for maskable interrupts?
What is the purpose of segment register?
What type of architecture is used in 8085 microprocessor?
What all does a microprocessor comprise of?
The address capability of 8085 is 64 kb.explain?
Introduction of 8051 microcontroller architecture?
What is the purpose of data moving instructions? Name any two such instructions?
Define the types of bus used in the 8085?
What are the different types of assemblers used?
Can you tell how many pins are there in 8085 Microprocessor?
What are the widths of data bus (db) and address bus (ab) of 8085?
What does a microprocessor mean? What all does a microprocessor comprise of?
explain about externally initiated operations
In 8085 name the 16 bit registers?
Give example of bit address and byte address?
