function drawRandomDisplay() {
    const c = console
    c.time("drawRandomDisplay()")
    const d = ZXDisplay
    //
    // randomize the display
    c.time("randomizeArea()")
    d.randomizeArea(0, 0, d.LINES, d.COLUMNS)
    c.timeEnd("randomizeArea()")
    //
    // draw the virutal display on the canvas
    c.time("update()")
    d.update()
    c.timeEnd("update()")
    //
    c.timeEnd("drawRandomDisplay()")
} //                                                           drawRandomDisplay

/** drawRandomDisplay():
 *  Fills the screen with random colour blocks and pixels.
 */
Fills the screen with random colour blocks and pixels.
Fills the screen with random colour blocks and pixels .
function drawRandomDisplay() {
    const c = console
    c.time("drawRandomDisplay()")
    const d = ZXDisplay
    c.time("randomizeArea()")
    d.randomizeArea(0, 0, d.LINES, d.COLUMNS)
    c.timeEnd("randomizeArea()")
    c.time("update()")
    d.update()
    c.timeEnd("update()")
    c.timeEnd("drawRandomDisplay()")
} 
function drawRandomDisplay ( ) { const c = console c . time ( "drawRandomDisplay()" ) const d = ZXDisplay c . time ( "randomizeArea()" ) d . randomizeArea ( 0 , 0 , d . LINES , d . COLUMNS ) c . timeEnd ( "randomizeArea()" ) c . time ( "update()" ) d . update ( ) c . timeEnd ( "update()" ) c . timeEnd ( "drawRandomDisplay()" ) }
drawRandomDisplay():
  Fills the screen with random colour blocks and pixels.
drawRandomDisplay () : Fills the screen with random colour blocks and pixels .
//
 // randomize the display
 //
 // draw the virutal display on the canvas
 //
 //                                                           drawRandomDisplay
