My submission fails although tests are passing when run them manually

[Asya]

My asm-files pass all the tests (Mult.tst, FillAutomatic.tst) when I run them manually in CPU-emulator, but for some reasons they fail when I submit them in zip-archieve. The errors are:

*(-50) - Test failed (code = diff_with_test_Mult) - Mult: Comparison failure at line 2
*(-50) - Test failed (code = diff_with_test_Fill) - Fill: At line 32767: Can't continue past last line

I'm almost sure that from my side all is good. Can anybody take a look, maybe smth is wrong from the grader's side?  

[WBahn]

Take a look at what? You haven't given us anything to work with other than the two error messages.

About the only observation I can make on such limited information is that your Fill program is reaching the end of ROM space, which means that your program is running away into non-program memory somehow.

[Asya]

Oh, sorry, of course.. Let's start with Mult.asm. Here is the contents:

  @i
  M=1 //i = 1
  @mult
  M=0 //mult = 0

(LOOP)
  @i
  D=M
  @R1
  D=D-M //now D contains i-R1
  @STOP
  D;JGT //if i > R1 goto STOP

  @R0
  D=M
  @mult
  M=D+M //mult = mult + R0
  @i
  M=M+1 //i = i + 1
  @LOOP
  0;JMP

(STOP)
  @mult
  D=M
  @R2
  M=D //RAM[2] = mult

(END)
  @END
  0;JMP

I understand that it's not efficient, but now we talk about correctness.
I thought that the grader on your side simply runs provided tests, but probably it's smth else.

[Bobber]

Not sure if test cases use negative numbers, but this won't work if R0 is negative, it'll just go straight to end. Looping one time at the most

[Asya]

It has constraints that R0 and R1 >= 0. But I've already found the problem, it somehow used R2 in grader. After I've set it to 0, problem disappeared. :)