invalid program counter value: 0

Question

I\'m currently working with assembly language under the MIPS processor. I\'m currently using MARS simulator and for reasons unknown I get the following error message after every

Answer 1

You probably finish your program with a jr $ra (return to caller). However, the code executed by MARS doesn't have a caller - it's executed at startup and has no function to return to, so the contents of $ra are zero.

The correct way to end a program on MARS is using the "exit" syscall:

    li $v0, 10
    syscall