Arm programming, Mechanical Engineering

Assignment Help:

In order to get your first experience of ARM programming, this way you are familiar with the problem itself, its design, its flow of execution and you can use your own C code as pseudo-code. You are not expected to implement the whole program from assignment

1. The main outline is shown in the ARM file given to you in the file "A2TemplateImage.s". The pseudo code for the overall flow is shown in Figure 1.

Figure 1: Revised Pseudo Code for the ARM program

Initialization:

Open the input file

if problems, print message and exit program

Print a header message to screen

Obtain the input data:

Read row size (Rsize1) and column size (Csize1) of image from the input file

Read exactly (Rsize1)x(Csize1) integers as elements for an image,

convert to characters, and store as 2D char array

Print image as characters with headings to screen

Processing the image:

Construct the Horizontal Mirror of the image into a second image

and print the resulting image with headings to screen

Construct the Vertical Mirror of the image into a second image

and print the resulting image with headings to screen

BONUS: Construct the Diagonal Right of the image into a second image

and print the resulting image with headings (note that this

is the equivalent of constructing the transpose of a matrix)

Closure:

Print a final message to screen

Close the input file

Exit the program

Which data structure should you implement?

You have a choice to implement the 2-dimensional data structure following exactly the C language paradigm, the way a compiler would translate to assembly language code, or to implement it more directly from the assembly language view as a linear array where you use the indices to enforce the 2-dimensional view.

Does it make a difference? It impacts the decision on how you store each element when you read them in.

Obviously it affects also the code you need to develop later for the image transformations and it affects the code to print the 2-dimensional image correctly. In the code given to you, you will find two versions of the routine for printing the image. The first version "PrImage" assumes the allocation, where all elements have been stored consecutively. The second version "PrImage2" assumes the allocation, where elements are stored as a subset of rows and columns of predefined fixed sizes, namely a maximum of 10 rows and 10 columns.

The important goal is that you understand both views and you understand what you are programming. A hint might be that the solution of Figure 6 is probably easier to handle at this point.

Learning about data structures in depth: the 2-dimensional array

It is time to think about the allocation in memory of the 2-dimensional array you are using. It is helpful to view memory as a set of contiguous locations of words/bytes with  increasing addresses. Figure 2 shows a snapshot of a section of memory where an array of characters has been allocated as "char Afull[25]".

1736_ARM Programming.png

It has been initialized with the letters A through Y as shown. Note that Afull[0] has address  0000B100 and contains "A", while, for example, A full[13] has address B10D and contains "N". In fact the element A full [13] is exactly 13 bytes away in distance from the base address of Afull itself. As a side note, if  this had been an array of integers, the element Afull[13]would be exactly 13 x 4 bytes away in distance from the base address of Afull itself, since each elements contains 4 bytes.

Where to start so that you can finish successfully

1. Using the files A2TemplateImage.s and IO_Example_2a.s, make the necessary customization with the goal to have a correct well tested program which can read an image and print it out, together with headings and your name. Choose your memory allocation strategy.

2. Design carefully, using diagrams on paper and pointers, the steps you will need to do the Horizontal Mirror image processing, the easier of the two. Start by using the segment of code to copy a row from a 2D array to another and test it. Then work your way to writing a loop which copies rows (0, 1,..., Nrows-1) of Image to rows (Nrows-1,Nrows-2,...,1,0) respectively of Image2. Look at the solution in C for assignment 1 in A1v2.c.

3. The Vertical Mirror transformation is a little trickier and you should design it and work out all the pointers and position using figures and diagrams before you spend too much time coding and debugging. Make sure you understand how you can use the useful indexed addressing modes:

  • [Rn],
  • [Rn], #c ,
  • [Rn, Rm], etc. Come and ask questions if you do not understand.

 


Related Discussions:- Arm programming

Find out diameter of steel wire, Find out diameter of steel wire: Q: ...

Find out diameter of steel wire: Q: A load of 5 KN is to be raised with help of steel wire. Find out diameter of steel wire, if maximum stress does not to exceed 100 MNm 2

Illustrate the process of insulation on pipe, Q. Illustrate the process of ...

Q. Illustrate the process of insulation on pipe? Factory fabricated sectional pipe insulation shall be applied in staggered joint construction and secured with wire loops or ba

What are the benefits of value engineering, Normal 0 false fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Write the functional element of instrument system, a) Mention typical appli...

a) Mention typical application of instrument system with illustratation. b) Write down about the functional element of instrument system with examples. c) Define the key term

HINT, WRITE THE SHORT NOTES ON SLUDGE AND SCALE

WRITE THE SHORT NOTES ON SLUDGE AND SCALE

Slab hanging - mechanics, Slab hanging: Three similar uniform slabs ...

Slab hanging: Three similar uniform slabs each having length '2 a ' are resting on edge of table as shown in the figure given below. If each slab is overhung by the maximum

Orthographic assembly drawing, Orthographic assembly drawing: On MyUni...

Orthographic assembly drawing: On MyUni (and shown above)  there is a figure of a small  partially assembled single-cylinder 2-stroke engine  that you need  to model. Drawings

Cnc lathe job clamping system, can we use electrical power chuck for job cl...

can we use electrical power chuck for job clamping in cnc lathe.what are the issues related

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd