70. Caps lock and shift lock
    ~~~~~~~~~~~~~~~~~~~~~~~~
If you use the keyboard with the <CAPS LOCK> off, then you have to press
<SHIFT> to get upper-case letters. As an alternative, you can hold down
<SHIFT>, press and release <CAPS LOCK>, and then release <SHIFT>. You will
now find that you will get upper-case normally, but lower-case if you hold
<SHIFT>. The effect is cancelled by pressing <CAPS LOCK> or <SHIFT LOCK>.
This can also be achieved from within a program with *FX202,160 , normal
<CAPS LOCK> is *FX202,32 , normal Shift Lock is *FX202,16 , and no lock at
all is *FX202,48 . You should really follow these calls with *FX118 , to make
sure the keyboard LEDs change, but it doesn't seem to be necessary.

 *FX202,160 - Reverse Caps Lock
 *FX202,48  - No Lock at all
 *FX202,32  - Normal  Caps Lock
 *FX202,16  - Normal Shift Lock