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CS 441-Midterm Exam
Fall 1999
Meng Yi Yee

 

Requirements of the Language

The programming language must be able to accept inputs and produces outputs accordingly

The programming language must be able to support real-time system

The programming language must be able to handle data storage perfectly

The programming language must be able to support artificial intelligence

The programming language must be able to read input devices

The programming language must be able to support portability

 

Implement Issues of Project

Basically, this new programming language will be an event-driven programming language. The user in the mind field can hold a remote control or use a laptop computer as a controller to an underground drill. On the controller, there will be many choices of commands like move forward, move backward, turning, scan the area, bomb a target location and so on. These commands will be shown on the screen of a laptop computer or will be each individual button on a remote control.

Global Positioning System is used to track the underground drill so that the user will know where the current location of the underground drill. Furthermore, the user will know which path to use when the user wants the underground drill to return to the surface. This way, the user will not lose the underground drill by not knowing where the current location of the underground drill.

Some Artificial Intelligence is needed when implementing this issue because there might be some many critical conditions occur during mining. Collapse of the tunnel is one of the biggest critical conditions, the user will not feel it on the surface. The underground drill must have the ability to detect that incident before it happens and then the underground drill must be able to know how to move to a safer place.

Most of the commands need a location as inputs of the commands. In this case, a 3-dimensional plane representation is used. The underground drill always represents location (0, 0, 0) even though it moves from location A to location B. Below is the graphical representation of the issue.

This way, user can input the coordinate for commanding an underground drill to do some particular job like bombing a target location or scan the area from where to where.

Besides the above, this new programming language is highly portable. This programming language can be enhanced to perform new job such as going under water to search and rescue people. The programmer can choose not to use all the built-in modules. In fact, the programmer can create new modules. The new modules can be programmed to read inputs from other devices such as mouse or keyboard to perform the tasks. This will allow room for expandability to the existing language.

 

Language Features and Characteristic

Support different kinds of control devices

Support Graphical User Interface (GUI)

Support Global Positioning System (GPS)

Support Artificial Intelligence

 

Inclusion and/or Exclusion of Features

Support different kinds of control devices

Support Graphical User Interface

Support Global Positioning System

Support Artificial Intelligence

 

Develop the Regular Grammar

Data Types

Operator

Description

Example

int

16-bit signed integer
Range: –32,768 to 32,767

int A

large_integer

32-bit signed integer
Range: -2,147,483,648 to 2,147,483,647

large_int A

char

8-bit Windows (ANSI) characters

char A

string

Character string stores value up to 255 characters

string A

bool

Boolean stores TRUE or FALSE

bool A

float

6-7 digits significant signed floating-point
8 bits exponent length, 23 bits mantissa length

float A

large_float

15-16 digits significant signed floating-point
11 bits exponent length, 52 bits mantissa length

large_float A

Typed vs Typeless

 

Assignment and Comment

Operator

Description

Example

=

Assignment

A = 1 + 2

##

Sigle Line Comment

## This is sigle line comment

!#, #!

Multiple Lines Comment

!# This is the start for the comment
This is the end of the comment !#

 

Arithmetic Operations

Operator

Description

Example

+

Addition

Result = A + B

-

Subtraction

Result = A – B

*

Multiplication

Result = A * B

/

Division

Result = A / B
Sample output: Result = 17.1

\

Integer Division

Result = A \ B
Sample output: Result = 17

%

Modulus

Result = A % B
Sample output: Result = 1 (17.1)

 

Logical Operations

Operator

Description

Example

&&

AND

A && B

|

OR

A | B

!

NOT

!A

 

Equality and Relational Operations

Operator

Description

Example

= =

Equal

A = = B

!=

Not Equal

A != B

>

Greater Than

A > B

<

Smaller Than

A < B

>=

Greater Than or Equal

A >= B

<=

Smaller Than or Equal

A <= B

 

Statement Types

If-Then-Else Statement
Nested If-Then-Else Statement
While Statement
Repeat-Until Statement
Case Statement
For Statement
 

Modules

Module

Description of Module

Variables

Description of Variables

Scan (float x1, float y1, float z1, float x2, float y2, float z3)

Scan for mine from initial location to final location

float x1
float y1
float z1
float x2
float y2
float z2

Initial location in x-plane
Initial location in y-plane
Initial location in z-plane
Final location in x-plane
Final location in y-plane
Final location in z-plane

Turn (char Direction, float Degree)

Turn left or right in the amount of degree

char Direction
float Degree

Turning direction, L or R
Number of degree to be turned

Forward (float Distance)

Move forward in the amount of feet

float Distance

Number of feet to move forward

Backward (float Distance)

Move backward in the amount of feet

float Distance

Number of feet to move backward

Bomb (float x_axis, float y_axis, float z_axis)

Bomb a location in the specified target location

float x_axis
float y_axis
float z_axis

Target location in x-plane
Target location in y-plane
Target location in z-plane

Detect ()

Detect for mines, count number of groups of mines and show the location of mine on the controller screen

 

 

Drill (float Depth)

Drill the current location until the specified depth

float Depth

Depth in feet that to be drill

Collect ()

Store the mines in the storage compartment after drilling

 

 

Modularity

Grammar

 

Example of the Programming Language

 

References