SLR 7/ Types of Programming Language

Question 1

Define Pre-defined functions

Answer 1

Functions pre-written within a programming language.

Question 2

Define Local variables

Answer 2

A variable that can only be accessed within the specific procedure or function it was declared in.​

Question 3

Define Global variables

Answer 3

A variable that can be accessed throughout the entire program and used by all modules.​

Question 4

Define Parameter passing

Answer 4

Allows variable values to be passed into procedures and functions for use in those blocks of code.

Question 5

Define Modularity

Answer 5

The concept of separating the functionality of a program into individual, interchangeable blocks, each designed to carry out a single task. These all combine to make a complete program and make the program more readable.​

Question 6

Define Procedures

Answer 6

Programs follow procedure calls systematically. The program does exactly what it is told to do in the order set by the programmer. Modularity is achieved by splitting the program into procedures.​

Question 7

Define Library

Answer 7

A collection of pre-built functions and procedures

Question 8

Define ADD

Answer 8

Add: Add the value stored to the value currently in the accumulator

Question 9

Define SUB

Answer 9

Subtract: Subtract the value stored to the value currently in the accumulator

Question 10

Define STA

Answer 10

Store: Store the contents of the accumulator

Question 11

Define LDA

Answer 11

Load: Load the value and enter it in the accumulator

Question 12

Define BRA

Answer 12

Branch: Set the program counter to the given address (value xx). That is, value xx will be the next instruction executed.

Question 13

Define BRZ

Answer 13

Branch If Zero: If the accumulator (calculator) contains the value 000, set the program counter to the value xx. Otherwise, do nothing

Question 14

Define BRP

Answer 14

Branch If Positive: If the accumulator (calculator) is 0 or positive, set the program counter to the value xx. Otherwise, do nothing

Question 15

Define INP

Answer 15

Input: fetch the value from the user, and put it in the accumulator

Question 16

Define OUT

Answer 16

Output: Copy the value from the accumulator

Question 17

Define HLT

Answer 17

Halt: Stop working/End the program

Question 18

Define DAT

Answer 18

Data: This is an assembler instruction which simply loads the value. For example, DAT 984 will store the value 984 into a mailbox at the address of the DAT instruction.