MARIE Simulator?

Comments

• IDK

  November 2007

  : [code]:
  : org 100
  :
  : input
  : Store VarA
  : input
  : Store VarB
  :
  :
  : Load VarB [red]//is this necesary? isn't acc already VarB?[/red]
  :
  : Subt One
  : Store Ctr
  :
  :
  :
  :
  : Loop, Load Sum
  : AddI VarB
  : Store Sum
  :
  : Load VarA
  : Add One
  : Store VarA
  :
  : Load Ctr
  : Subt One
  : Store Ctr
  : Skipcond 000 [red]//What does this mean?[/red]
  :
  : Jump Loop
  : Halt
  :
  :
  :
  : Next, Hex 0
  : VarA, Dec 0
  : VarB, Dec 0
  : Sum, Dec 0
  : Ctr, Hex 0
  : One, Dec 1
  : Num, Dec 0
  
  [/code]
  
  Sorry to tell you, but you failed to use code tags.
  
  The code goes [b]between[/b] the two tags.
  
  Also, I don't think there's any MARIE guys here.
  I don't even know what MARIE is...
  
  Is it a machine? And what's so special about it that you use it?
  It seems to use a very ugly assembler syntax...
  
  : I've got my code written but it doesn't give me any output.
  That's probably because you don't tell it to output anything, it just halts after the loop.
  
  Also, I think you have the loop wrong...
  (if I understand your code correctly, which I may not do, because I
  don't know MARIE)
  This is psuedo asm:
  Your code:
  [code]
  Loop:
  sum+=B
  A+=1
  Ctr-=1
  jmp Loop if Ctr>0
  halt
  [/code]
  
  Proper code:
  [code]
  Loop:
  sum+=A
  B-=1
  jmp Loop if B>0
  print sum
  halt
  [/code]
  Happy coding wishes
  the one and only
  [b]Niklas Ulvinge[/b] [white]aka [b]IDK[/b][/white]
• zzthejimzz

  November 2007

  MARIE is a JVM simulator used to simulate a simple computer through basic assembly language instructions. Ok, i finally figured it out!!! Good old fashion trial and error helped out! I'm going to post my solution for anyone else who has problems with it, thanks.
  [code]
  org 100
  
  input /user input first integer
  Store VarA
  
  input /user input second value
  Store VarB
  
  Jns prod
  Load Sum
  Store answer
  
  Output
  Halt
  
  prod, Hex 0
  
  Load VarB
  Store Ctr
  Clear
  
  Store Sum
  Loop, Load Sum
  Add VarA
  Store Sum
  Load Ctr
  Subt One
  Store Ctr
  
  Skipcond 400 /If control variable <0 skip next instruction
  Jump Loop / go to loop
  Load Sum
  JumpI prod
  
  Next, Hex 0
  VarA, Dec 0
  VarB, Dec 0
  Sum, Dec 0
  Ctr, Hex 0
  One, Dec 1
  Num, Dec 0
  answer, Dec 0
  
  
  
  
  
  
  
  
  
  
  [/code]
  
  
• wasichu

  November 2010

  First: Have you found that MARIE helped you understand x86 assembly programming? Has MARIE been useful as a learning tool?
  
  
  Secondly: I created a MARIE program that squares two numbers.
  
  Let me know if you have a better way to do this (which I'm sure there is--e.g., looking at it again, exponent isn't needed):
  
  [code]
  Input /Enter the base
  Store Base
  Subt Decr
  Store BaseCtr
  Store BaseReset
  
  Input /Enter the exponent
  Store Exponent
  Subt Decr
  Store ExpCtr
  
  PreLoop, Load Base
  Store Result
  
  AddLoop, Load Result
  Add Base
  Store Result
  
  Load BaseCtr
  Subt Decr
  Store BaseCtr
  Skipcond 400
  Jump AddLoop
  Jump ExpTally
  
  ExpTally, Load Result
  Store Base
  Load BaseReset
  Store BaseCtr
  Load ExpCtr
  Subt Decr
  Store ExpCtr
  Skipcond 400
  Jump PreLoop
  Jump Finish
  
  Finish, Load Result
  Output Result
  Halt
  
  
  
  Base, Dec 0
  BaseCtr, Dec 0
  BaseReset, Dec 0
  Exponent, Dec 0
  ExpCtr, Dec 0
  Decr, Dec 1
  Result, Dec 0[/code]
• jdlc010

  January 2011

  just join!
  
  me to have a problem with marie simulator.
  
  does anyone knows "How to output the sum of all integers from 1 to 100 in marie simulator?"
  
• dntclmeidol

  July 2011

  can any one help me about marie>?
  
• dntclmeidol

  July 2011

  This post has been deleted.
• MrWrongsAlive

  October 2011

  I know this isn't a new post but, I too had to struggle with MARIE, I'm a relatively new programmer so after I got some of it figured out I decided to do the world a solid and create a powerpoint explaining the basics of MARIE. Enjoy
  
• MrWrongsAlive

  October 2011

  Same as my previous post.