LongJump

LongJump is a 2D fungeoid invented by User:None1.

Memory

It has 2 unbounded signed accumulators: A and B, both initialized with 0.

Grid

A Nopfunge-styled grid is used. Both line numbers and column numbers are 0-indexed. Execution starts at (0,0) and direction is always right.

Commands

• +: Increment A.
• =: Increment B.
• -: Decrement A.
• _: Decrement B.
• !: Long jump, decreases current line number by A and column number by B. If line number is below 0, it becomes 0, the same for column number.
• A (optional): Prints value in A (either as number or character).
• B (optional): Prints value in B (either as number or character).
• .: Halts.
• Other characters: NOP.

Examples

Infinite loop

=!

XKCD Random Number

When command A prints as character:

++++++++++++++++++++++++++++++++++++++++++++++++++++A.

When command A prints as number:

++++A.