anonymous
  • anonymous
Need help in LMC coding: Calculate the sum from 1 to a number inputted by users For example, if user inputs 5, calculate 1+2+3+4+5 and output 15...
Computer Science
chestercat
  • chestercat
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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
I hv the flowchart idk how to convert into code?

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rsmith6559
  • rsmith6559
You could start by choosing one symbol from the flowchart and code for it. Then do it again and again until you have all the symbols coded. Then you just have to "smooth out" the code between the symbols. When in doubt, decompose (break down) the problem into smaller problems. Eventually a solution will appear.
anonymous
  • anonymous
@ParthKohli need help!!
anonymous
  • anonymous
inp sto value out add N brp value sub value out bra value add n hlt its not compiling.. >.<
anonymous
  • anonymous
INP STA SUM LOOP SUB ONE STA TEMP LDA SUM ADD TEMP STA SUM LDA TEMP BRZ QUIT BRA LOOP QUIT LDA SUM OUT HLT ONE DAT 1 SUM DAT TEMP DAT
anonymous
  • anonymous
thanks meepi, can u explains the branching part?
anonymous
  • anonymous
explain*
anonymous
  • anonymous
First we store the input in SUM Then we substract 1 from the accumulator, and store the new number in TEMP next we load SUM into the accumulator, and add TEMP and we store this in SUM again then we load temp into the accumulator BRZ check if temp is 0, in which case we're finished (5 + 4 + 3 + 2 + 1 + 0, we have the sum), and if it is we branch to QUIT otherwise we use BRA to go back to the top of the loop and repeat the process
anonymous
  • anonymous
alright so u took temp as a variable to store the new #?
anonymous
  • anonymous
each iteration of the loop temp gets lowered by 1 and added to the sum in SUM if temp is 0 we're done temp is used as a countdown from input to 0, and each time the loop runs we add it to sum and substract 1 from it
anonymous
  • anonymous
got it now! thank you very much for your help! I appreciated!

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