Spectrum +/+2/+3/+128 keyboard layout
                        =====================================

+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+---------+
|     |     |EDIT |CAPS |TRUE | INV |LEFT |DOWN | UP  |RIGHT| TAB | DEL |         |
| TRU | INV |  !  |  @  |  #  |  $  |  %  |  &  |  '  |  (  |  )  |  _  |  BREAK  |
| VID | VID |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  0  |         |
+-----+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-----+
|         |     |  Q  |  W  |  E  |  R  |  T  |  Y  |  U  |  I  |  O  |  P  |     |
| DELETE  |GRAPH|     |     |     |  <  |  >  |  [  |  ]  |     |  ;  |  "  |     |
|         |     |  q  |  w  |  e  |  r  |  t  |  y  |  u  |  i  |  o  |  p  |     |
+---------+-----+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+     |
|         |       |  A  |  S  |  D  |  F  |  G  |  H  |  J  |  K  |  L  |         |
| EXTEND  | EDIT  |  ~  |  |  |  \  |  {  |  }  |  ^  |  -  |  +  |  =  |  ENTER  |
|         |       |  a  |  s  |  d  |  f  |  g  |  h  |  j  |  k  |  l  |         |
+---------+---+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+-+---+---------+
|             |     |  Z  |  X  |  C  |  V  |  B  |  N  |  M  |     |             |
|    SHIFT    |CAPS |  :  |  `  |  ?  |  /  |  *  |  ,  |  .  |  .  |    SHIFT    |
|             |     |  z  |  x  |  c  |  v  |  b  |  n  |  m  |     |             |
+-----+-----+-+---+-+---+-+---+-+-----+-----+-----+-----+-+---+-+---+-+-----+-----+
|     |     |     |     |     |                           |     |     |     |     |
| SYM |  ;  |  "  |LEFT |RIGHT|           SPACE           | UP  |DOWN |  ,  | SYM |
|     |     |     |     |     |                           |     |     |     |     |
+-----+-----+-----+-----+-----+---------------------------+-----+-----+-----+-----+