Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Describe Program Control Instructions?
These instructions specify conditions for altering the sequence of program execution or we can say in other words that the content of PC (program counter) register. PC points to memory location which holds the subsequent instruction to be executed. The alteration in value of PC as a result of execution of control instruction such as BRANCH or JUMP causes a break in sequential execution of instructions. The most common control instructions are as following:
JUMP and BRANCH may be unconditional or conditional. JUMP is an unconditional branch used to implement simple loops. JNE jump not equal is conditional branch instruction. The conditional branch instructions like BRP X and BRN X causes a branch to memory location X if the result of most recent operation is positive or negative correspondingly. If the condition is true PC is loaded with branch address X and next instruction is taken from X otherwise PC is not changed and the subsequent instruction is taken from location pointed by PC. Figure below displays an unconditional branch instruction and a conditional branch instruction if content of AC is zero.
MBR←0; Assign 0 to MBR register
X←2001; Assume X to be an address location 2001
READ X; Read a value from memory location 2001 into AC
BRZ 1007; Branch to location 1007 if AC is zero (Conditional branch on zero)
ADD MBR; add the content of MBR to AC and store result to AC
TRAS MBR; Transfer the contents of AC to MBR
INC X; Increment X to point to next location
JUMP 1001;Loop back for further processing.
Write short note on the Johnson counter. Ans: Johnson Counter: It is a synchronous counter, where all flip-flops are clocked concurrently and the clock pulses drive the
What are the modes in which any update tasks work? Synchronous and Asynchronous.
The ISCII is an 8-bit code which contains standard ASCII values till 127 from 128-225 it contains characters necessary in ten Brahmi-based Indian scripts. It is defined in IS 13194
JMX is based on a 3-level architecture: ? The Probe level have the probes (known as MBeans) instrumenting the resources. Also known as the Instrumentation level. ? The A
Your task is to implement a memory manager that manages page reads and writes from multiple client threads. In the first programming task the memory manager keeps all the pages in
What is meant by scan code? When a key is pressed on the keyboard, the keyboard controller places a code take to the key pressed into a part of the memory known as the keyboar
Q. Illustrate logical Data Processing Instructions? AND, OR, NOT, XOR operate on binary data stored in registers. For illustration if two registers comprises data: R1 = 10
Q. Explain RBY and CMYK colour Printing? For good printing printers don't use RBY in place of that they use CMYK (Cyan instead of Blue, Magenta instead of Red, Yellow and a sep
Suppose that a process scheduling algorithm favors those processes that have used the least processor time in the recent past. Why will this algorithm favour I/O- bound processes,
The ?rst task in the project is to develop a sane system to store change logs and versions of ?les. The simplest approach is to create a "dot" directory in the location of the ?le
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd