fib_with_test.js

N = 8;
ram = [];
for (let i = 0; i < N; ++i) {
  ram[0x500 + i] = 0;
}
ram[0] = N;

al = 0
si = 0x500
ram[si] = al
++si;
++al;
ram[si] = al
cx = ram[0]
cx -= 2;
while (cx) {
  al = ram[si - 1]
  al += ram[si]
  ++si
  ram[si] = al
  --cx
}

for (let i = 0; i < 8; ++i) {
  console.log(ram[0x500 + i]);
}