Bulgu

Bulgu is a minimalistic language designed around self-modification. It was created by User:revcompgeek on Apr 12, 2010. The main idea is using commands to search through memory (both code and data) to move a pointer around. Jumping involves using this pointer, so making decisions and loops requires moving the pointer between the data being modified and the code to jump to.

Instructions
[] move pointer to prev/next char {} move pointer to prev/next delimiter *  move the pointer to the marker ~  swap the pointer with the marker +- add/subtract 1 to char at pointer &_ add/subtract char at marker to char at pointer %  compare char at pointer to char at marker (result saved) swap the pointer with the Program Counter if >  greater <  less =  equal IO ., input/output char at pointer

Information
The delimiter starts as " " (a space)