CSC103 Homework 3 2013

From dftwiki3
Revision as of 14:18, 25 September 2013 by Thiebaut (talk | contribs) (Problem 1)
Jump to: navigation, search

--D. Thiebaut (talk) 08:34, 24 September 2013 (EDT)








Will be available soon... stay tuned!
UnderConstruction.jpg

Problem 1


CSC103 hw3 1 2013.jpg


The program above is very cryptic. Your assignment is to add comments to the program and give names to the different variables to make it more easily understandable. A comment is just some documentation following a semi-colon.

Use the program below as an example of what you should emulate. Do not put my name on your listing, but yours instead.

; sum of 2 integers
; D. Thiebaut   CSC103
; The program takes 2 variables stored in memory at 
; Address 10 (and up) computes their sum and stores
; it in a 3rd variable.	

@0   	  	     ;code section starts at address 0
start: lod var1      ;AC <- 3
add var2             ;AC <- 3+5 = 8
sto sum              ;sum <- 8
hlt

@10                  ;data section starts at Address 1
var1: 3 
var2: 5
sum: 0


Make sure that you add comments to the right of each instruction indicating what the instructions do. Make sure you indicate as well what the final result of the computation is.

Problem 2: Mystery Program

I have created a program with the simulator, translated it, and it has been loaded into memory. But instead of showing it to you as instructions, I am showing it you as numbers...

Your job is to reconstruct my original program, fully documented, as for Problem 1.


CSC103 HW3 2013 2.jpg