DZZZZ

DZZZZ is an esoteric programming language invented by User:Zzo38. He has forgotten when, but the interpreter source's datestamp suggests that it was in 1994 or earlier.

All program flow is diagonal.

Examples
This program turns the input backwards and then outputs it. @       o       - @ | . | -    . v     . ?

This program types out the entire alphabet. $                          | | . |   $                         @ o. . - ? |   $             = = =     -       @   < @   $   * *       = = = $     $     -   -   @    * * * =     @       $   $       $   $   @     *     =   @         $ $         $ $     -          =   @           $           $     @         =   @                             @        =   @                             @     | =   -                             @    @ =     @                           @   -         -                         @    .       @                         @    _~     @                         @   @  .   @                         @  - ,   @                         @   @  @ @                         @    @  |                         @   __@_~_________________________      |

External resources

 * http://zzo38computer.org/esoteric/dzzzz/ Implemented in QBASIC