Assembly Language Project

Printing of Table Due: Wednesday, November 12

Computation Due: Friday, November 14

Problem: One organization consists of a federation of chapters, and the chapters pay dues to the central organization according to their income and based on the following table.

Income		Dues
Over	But not Over	Base	plus %	on income
0	4000	0	+ 16%	over 0
4000	8000	640	+ 17%	over 4000
8000	12000	1320	+ 18%	over 8000
12000	16000	2040	+ 19%	over 12000
16000	20000	2800	+ 21%	over 16000
20000	24000	3640	+ 22%	over 20000
24000	28000	4520	+ 23%	over 24000
28000	32000	5440	+ 24%	over 28000
32000	36000	6400	+ 27%	over 32000
36000	40000	7480	+ 29%	over 36000
40000	44000	8640	+ 31%	over 40000
44000	48000	9880	+ 33%	over 44000
48000	52000	11200	+ 34%	over 48000
52000	56000	12560	+ 35%	over 52000
56000	60000	13960	+ 36%	over 56000
60000	64000	15400	+ 37%	over 60000
64000	68000	16880	+ 38%	over 64000
68000	-----	18400	+ 29.25%	over 68000

For example, if a chapter has an income of $37,455 , then its dues are determined from the table by looking at the line for incomes between $36,000 and $40,000. Specifically, the chapter pays $7480 plus 29% of $1,455 (the income in excess of $36,000) for a total of $7901.95 .

Assignment: Write a program that allows users to print out the above table and that computes a chapter's dues. In the process, you will need to put together several of aspects of HP assembly language, including moving data, addressing, computation, branching, and input/output.

To get started, following these steps:

1. Consider how the data for the above table can be stored efficiently. Your representation should be flexible, in that the program should allow the number of categories to expand (e.g., in the future there may be a category for incomes between $68,000 and $72,000). Also, it should be easy to change specific percentages for any category. You may assume, however, that all categories (both now and in the future) will be in increments of $4,000, beginning at $0.00 .

2. Using ~walker/211/labs/proj-code.c as a basic shell, write a program that solves the above problem. Thus, beginning with the above program, compiled to assembly, add appropriate elements (written in HP Assembly Language) to store the table and handle all table mechanisms (including the printing of the data table).

3. Once the table is printed, add assembly code to handle the computation and printing of a chapter's dues. (Reading and printing already are handled in the above shell. Overall, HP Assembly Language must be used for each of the following:
   • printing the above table (calling I/O functions from C libraries as desired),
   • computing the dues for that chapter.

Extra Credit: While the entries in the above table may seem somewhat peculiar, there is some logic behind the various percentages, and this table was actually used by one organization. Explain the logic behind the significant drop in the dues rate quoted for the categories between the $64,000-$68,000 line and the over $68,000 line.

This document is available on the World Wide Web as

http://www.math.grin.edu/~walker/courses/211/assem-project.html