fn op_Fx29(&mut self, x: usize) {
        // digit sprites start at memory 0x000 and each is 5B long
        self.I = (self.V[x] as usize) * 5;

        self.pc.goto_next();
    }
// Set I to the location of sprite for digit Vx.
Set I to the location of sprite for digit Vx.
Set I to the location of sprite for digit Vx .
fn op_Fx29(&mut self, x: usize) {
        // digit sprites start at memory 0x000 and each is 5B long
        self.I = (self.V[x] as usize) * 5;
        self.pc.goto_next();
    }
fn op_Fx29 ( & mut self , x : usize ) { // digit sprites start at memory 0x000 and each is 5B long self . I = ( self . V [ x ] as usize ) * 5 ; self . pc . goto_next ( ) ; }
Set I to the location of sprite for digit Vx.
Set I to the location of sprite for digit Vx .
&mut self
x
usize
&mut self
x
usize