This area is black magic for now :)

How to cast spellsEdit

EngDrvOut(register, value);

or:

unsigned long spell[] = {
      register1, value1,
      register2, value2,
      ...,
      0xFFFFFFFF          // end of commands
};
engio_write(spell);

Known spellsEdit

Changes FPS and forces shutter speed at 1/fps:

EngDrvOut(0xC0F06014, timer_value-1); // see VideoTimer for units
EngDrvOut(0xC0F06000, 0x01);        // coherent update

Causes a slight vertical zooming in LiveView image:

 EngDrvOut(0xC0F1133C, 0x0000008A);

NSTUBSEdit

500d.111:

EngDrvOut 0xFF190B84 //ASM code is different from 550d.109, but called from same spots so it's the same function.