Streamix

Streamix is a brainfuck based esolang. All I/O goes only on streams. Also, all instructions are ASCII-lowercase.

General

Memory

Memory in Streamix is array of 16-bit cells. It has infinite size, so interpreter should extend it sometimes. Current cell is a cell onto pointer.

Queue

Some data, usually I/O data, contains in FIFO queue. Reading value from queue removes read value from queue.

Streams

Stream is actually number, mapped on file descriptor. Streams 0, 1 and 2 are stdout, stdin and stderr respectively. Other streams may be opened with f command. Current stream is a stream with current cell value as stream number.

Instructions

Instruction	Description
i/d	Increments/decrements current cell by 1
s	Squares value of current cell
z	Sets current cell value to 0
p/n	Moves pointer left or right one cell
b/e	Simular to [ and ] in brainfuck
o	Puts string in double quotes to current stream
a	Puts value from queue to current stream as raw byte
x/r/l	Same, but as hexadecimal/decimal/BCD
f	Opens file in "a+b" mode, name specifiend in string in double quotes. Puts its stream ID to current cell
c	Closes current stream
g	Reads one byte from current stream to queue
q	Puts current cell value to queue
u	Reads value from queue to current cell

Computational class

Turing-complete, proven by trivial reduction to brainfuck:

Brainfuck	Streamix
<>	pn
+-	id
[]	be

(I/O not required for Turing-completeness)

Examples

Hello, World!

o"Hello, World!"

Cat program:

ibgdaie