3switchBF

3switchBF is yet another brainfuck equivalent, in the form of a Turing tarpit, conceived then neglected by User:Bataais in August of 2013. Because of this, information beyond the general idea may not be accurate.

Instructions

Each BF command is represented with 3 switches: A, B, and C. Each switch can be toggled on or off. All 8 possibilities of the 3 switches represent the 8 BF commands. E is then used to run the switch configuration as a BF command.

A	B	C	BF Equivalent
OFF	OFF	OFF	>
OFF	OFF	ON	<
OFF	ON	OFF	+
OFF	ON	ON	-
ON	OFF	OFF	.
ON	OFF	ON	,
ON	ON	OFF	[
ON	ON	ON	]

Instruction	Action
A	Toggles the A switch.
B	Toggles the B switch.
C	Toggles the C switch.
E	Executes the BF instruction the switches represent.

Examples

Cat

ABEBEBCEBE

Translator to brainfuck

Written in Python.

def translate(code):
  d = "><+-.,[]" ; r = ""
  a = b = c = 0
  for cc in code:
    if cc == "A": a = 1 - a
    elif cc == "B": b = 1 - b
    elif cc == "C": c = 1 - c
    elif cc == "E": r += d[a & (b << 1) & (c << 2)]
  return r