Editing CHIP-8 (section)

===Registers===

CHIP-8 has 16 8-[[bit]] data [[processor register|registers]] named V0 to VF. The VF register doubles as a flag for some instructions; thus, it should be avoided. In an addition operation, VF is the [[Status register|carry flag]], while in subtraction, it is the "no borrow" flag. In the draw instruction VF is set upon pixel collision.

The address register, which is named I, is 12 bits wide and is used with several [[opcode]]s that involve memory operations.