Several stars in the vanilla Super Mario 64 ROM are hardcoded. Such as when you beat Bob-Omb King, the star that spawns is located at a hardcoded position. Here's a list of these stars and what their coordinates are.
Star Level Locations:
| Level | Description | X | Y | Z |
|---|---|---|---|---|
| BOB | Koopa the Quick | 3030 | 4500 | -4600 |
| BOB | Bob-Omb King | 2000 | 4500 | -4500 |
| WF | Whomp Boss | 180 | 3880 | 340 |
| CCM | Penguin Race | -7339 | -5700 | -6774 |
| CCM | Penguin Mother | 3500 | -4300 | 4650 |
| PSS | Slide Star | -6358 | -4300 | 4700 |
| SSL | Eyerock | 0 | -900 | -3700 |
| LLL | Big Bully #1 | 0 | 950 | -6800 |
| LLL | Big Bully #2 (Group) | 3700 | 600 | -5500 |
| SL | Ice Bully | 130 | 1600 | -4335 |
| THI | Koopa the Quick | 7100 | -1300 | -6000 |
| THI | Piranha Plants | -6300 | -1850 | -6300 |
| THI | Wiggler Boss | 0 | 2048 | 0 |
| JRB | 4 Treasure Chests | -1800 | -2500 | -1700 |
| DDD | 4 Treasure Chests | -1900 | -4000 | -1400 |
| BBH | Big Boo (Groundfloor) | 980 | 1100 | 250 |
| BBH | Big Boo (Merry-Go-Round) | -1600 | 2100 | 205 |
| BBH | Big Boo (Rooftop) | 700 | 3200 | 1900 |
| BBH | Mr. I | 1370 | 2000 | -320 |
| SSL | Klepto | -5550 | -300 | -930 |