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<WRAP><color red><fs 200%>Corning Community College</fs></color></WRAP>
<WRAP><fs 150%>CSCS2650 Computer Organization</fs></WRAP>
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======PROJECT: Debug And Polish (DAP1)======

=====OBJECTIVE=====
Extend our debugging infrastructure with the creation of a **_debugmemory** subroutine.

=====TASK=====
Implement a Vircon32 assembly subroutine that uses your dap0 **_debug** subroutine. Your task is to display a range of memory addresses, along with their hexadecimal contents.

The starting and ending memory addresses are given as parameters via the stack.

Specifically:

  * call the subroutine **_debugmemory**, and place it in your existing **debug.s** file so that both can be **%include**'ed as needed in debugging efforts.
    * it will call **_debug** in the process of operation (let **_debug** handle the display of information)
  * written entirely in Vircon32 assembly language, using no compiler-generated routines from the Vircon32 API (no **print**, no **itoa**)
  * 2 parameters via the stack:
    * starting address (first pushed)
	* ending address (second pushed)
  * all register states preserved (ie whatever was going on before the call to debug must be preserved: save and restore)
  * make use of the stack instructions **PUSH** and **POP**, although all stack access does not have to exclusively be via **PUSH** and **POP**.
  * try it out on some existing code, posting a screenshot (with context) to the class discord
  * provide usage instructions (what needs to be added to existing code to use your debug subroutine)
  * modify **_debug** to "return" an updated X and Y coordinate (by updating the value stored in the stack), so that **_debugmemory** can **POP** and use it in its own processes.

=====EDIT=====
You will want to go [[/notes/comporg/spring2024/projects/dapX|here]] to edit and fill in the various sections of the document:

  * [[/notes/comporg/spring2024/projects/dapX|https://lab46.g7n.org/notes/comporg/spring2024/projects/dapX]]

{{page>notes:comporg:spring2024:projects:dapX&nouser&nodate&nomdate&editbtn}}

=====SUBMISSION=====
To be successful in this project, the following criteria (or their equivalent) must be met:

  * Project must be submit on time, by the deadline.
    * Late submissions will lose 33%  credit per day, with the submission window closing on the 3rd day following the deadline.
  * Executed programs must display in a manner similar to provided output
    * output  formatted,  where applicable,  must match  that of  project requirements
  * Processing must be correct based on input given and output requested
  * Output, if applicable, must be correct based on values input
  * Code must be nicely and consistently indented
  * Code must be consistently written, to strive for readability from having a consistent style throughout
  * Code must be commented
    * Any "to be implemented" comments **MUST** be removed
      * these   "to  be  implemented"   comments,  if  still  present  at evaluation time, will result in points being deducted.
      * Sufficient  comments  explaining  the point  of  provided   logic **MUST** be present
  * No global variables (without instructor approval), no goto statements, no calling of main()!
  * Track/version the source code in your lab46 semester repository
  * Submit  a copy of  your source code to  me using the  **submit** tool by the deadline.

====Submit Tool Usage====
Let's  say you  have completed  work  on the  project, and  are ready  to
submit, you  would do the following:

<cli>
lab46:~/src/SEMESTER/DESIG/PROJECT$ submit DESIG PROJECT file1 file2 file3 ... fileN
</cli>

You should get some sort of confirmation indicating successful submission
if all went according to plan. If  not, check for typos and or locational
mismatches.

=====RUBRIC=====
I'll be evaluating the project based on the following criteria:

<code>
208:dap1:final tally of results (208/208)
*:dap1:submitted file called debug.s or debug.asm [13/13]
*:dap1:subroutine is called _debugmemory or __debugmemory [13/13]
*:dap1:code assembles with no warnings or errors [13/13]
*:dap1:parameters obtained, modified in the stack [13/13]
*:dap1:register states preserved across call [13/13]
*:dap1:debug subroutine uses stack instructions [13/13]
*:dap1:screenshot of subroutine in action to discord [26/26]
*:dap1:code contains usage instructions in comments [26/26]
*:dap1:output contains display of addresses, contents [39/39]
*:dap1:functionality is correct and to specifications [39/39]
</code>

===Pertaining to the collaborative authoring of project documentation===

  * each class member is to participate in the contribution of relevant information and formatting of the documentation
    * minimal member contributions consist of:
      * near the class average edits (a value of at least four productive edits)
      * near the average class content change average (a value of at least 1024 bytes (absolute value of data content change))
      * no zero-sum commits (adding in one commit then later removing in its entirety for the sake of satisfying edit requirements)
    * adding and formatting data in an organized fashion, aiming to create an informative and readable document that anyone in the class can reference
    * content contributions will be factored into a documentation coefficient, a value multiplied against your actual project submission to influence the end result:
      * no contributions, co-efficient is 0.50
      * less than minimum contributions is 0.75
      * met minimum contribution threshold is 1.00

===Additionally===

  * Solutions not abiding  by spirit of project will be  subject to a 50% overall deduction
  * Solutions  not  utilizing descriptive  why and  how comments  will be subject to a 25% overall deduction
  * Solutions not utilizing indentation to promote scope and clarity or otherwise maintaining consistency in code style and presentation will be subject to a 25% overall deduction
  * Solutions not organized and easy to  read (assume a terminal at least 90 characters wide, 40 characters tall)  are subject to a 25% overall deduction