A Small Maniac's game
- points - 100
Description :
A game that zh3r0 guys asked for 😥
Note: Solve all the levels and then click submit the solution button and wait for 40 seconds to get the flag.
Solution :
level 0: here we make use of "MOVE A1 A2" instruction where in A1 is the amount of steps and A2 is the direction.
level 1: same instructions are used to navigate here too.
level 2: "READ A1" will read the input and store it into A1 whereas "UNLOCK A2" has key = A2 which is used to unlock the door.
level 3: the instruction "ADD M1 A1 A2" stores the result of A1+A2 into M1. And so other operations of subtraction and multiplication are also obtained.
level 4: "JMP A1" will allow us to jump to a line in the code.
level 5:
level 6: "JMPZ A1 A2" jumps to line A1 if A2 is 0, whereas "JMPN A1 A2" jumps to line A1 if A2 is negative.
level 7: moving in the clockwise and solving the equation.
level 8: "CMP M1 A1 A2" is used to compare A1 and A2. If A1 > A2 then M1 = 1; if A1 = A2 then M1 = 0; if A1 < A2 then M1 = -1
level 9: we make use "JMP" instructions to run a loop.
level 10: "[[2]]" implies double dereference. i.e if 2nd register contains 3 and third register contains 54, then "[[2]]" will evaluate to 54.
level 11: register "[7]" contains number of steps taken. It doesn't increment once it hits a block.
level 12: we can use all the above instructions to run a loop in order to check if the input is prime or not.
Flag :
