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I don’t have a syscall code in my MIPS instruction, however in the simulator I can see the following:
I don’t have any of the following code line in my .s
li $v0 10
syscall
Why is that? It’s bothering me as it gives me a bad address in the syscall
It’s a syscall used by the simulator to exit from the program (it gives control back to operating system), you can get a summary of available syscall of Spim here: link.
The simulator adds a bootstrap at the beginning and an end section at the end of your program. Since you specify which
syscallto execute by loading the corresponding value in register$v0that’s what it actually does: set the syscall to be theexitone and the call it withsyscall.