Tag: function

Use the information given in the last section, in order to write a piece of code that when executed puts the current values of ap, fp and pc in memory (say, write ap into [ap], fp into [ap + 1] and pc into [ap + 2]).

Compile and run (with at least 10 steps) the following code. Use the –print_memory and –relocate_prints flags for cairo-run.

func main():
    call foo
    call foo
    call foo

    ret
end

func foo():
    [ap] = 1000; ap++
    ret
end

Try to think what happens when the cpu gets to the ret instruction (which of the registers ap, fp, pc should change when ret is executed and to what values?).