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Q. Illustrate program on hypothetical machine?
The program given in figure above is a hypothetical program which performs addition of numbers stored from locations 2001 onwards until a zero is encountered. Consequently X is initialized to 2001 whereas MBR which stores the result is initialized to zero. We have presumed that in this machine all operations are performed by CPU. The programs will execute instructions as:
SKIP instruction is a zero-address instruction and skips next instruction to be executed in sequence. Or we can say it increments the value of PC by one instruction length. The SKIP also can be conditional. For illustration the instruction ISZ skips the next instruction only if the result of most recent operation is zero.
CALL and RETN are used for CALLing subprograms and RETurning from them. Presume that a memory stack has been built such that stack pointer points to a non-empty location stack and expand in the direction of zero address.
a. Define parsing? Give difference among top down parsing and bottom up parsing. b. Determine the self-relocating programs? Why self-relocating programs are less efficient then
Q. Define Opcode and Operands? The most common fields which are found in instruction formats are: Opcode: (What operation to perform?) An operation code field cal
Explain SPC. Also discuss the different modes of Centralized SPC In stored program control systems, set of instructions or a program to the computer is stored into its memory a
State briefly about the Register Transfer A micro operation is a basic operation performed on information stored in one or more registers. The result of operation may replace
What is Delay System? Delay System: A class of telecommunication networks like data a network that places the call or message arrivals in a queue in the lack of resources, an
Are there any special rules about inlining? Yes, there are some rules about inlining - a.) Any source files which used inline function should contain function's definition.
Define Instruction Code. An Instruction code is a group of bits that instructs the computer to perform an exact operation. It is usually separated into parts, each having its o
Why a function can n ot call a task As functions doesn't consume time,it can do any operation which doesn't consume time. Mostly tasks are written that consumes time. So a ta
Define BCD. A binary code that distinguishes between 10 elements must contain at least 4 bits, but 6 combinations will remain unassigned. Numerous dissimilar codes can be obtai
Q. Find out if a particular file is available in a disk in DOS? Sometimes you may like to find out if a particular file is available in a disk. In that case, you can identify t
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