Simpfunk is a simple and pretty useless esoteric programming language that prints out strings.
It was implemented in ALGO.
Simpfunk has only 3 instructions: +, . and :
It has a 1-bit register and a buffer.
+ flips value in the register.
. appends current register's value to the buffer.
: prints
A program that prints character A followed by a new line.
| Char | ASCII | Binary (8-bit) |
|---|---|---|
| A | 65 | 01000001 |
| \n | 10 | 00001010 |
Thus:
'A' character
Instructions: | . | + | . | + | . | . | . | . | . | + | . | : |
Register state: | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
Buffer: | 0 | | 1 | | 0 | 0 | 0 | 0 | 0 | | 1 | - |
New line character
Instructions: | + | . | . | . | . | + | . | + | . | + | . | + | . | : |
Register state: | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
Buffer: | - | 0 | 0 | 0 | 0 | | 1 | | 0 | | 1 | | 0 | - |
sf is an interpreter that runs Simpfunk programs.
sf --run my_program.sf
sf can also generate a Simpfunk program out of a given string:
$ sf --gen 'Hello, world!'
Generating...
Generated 156 instructions in 0.13 seconds.
.+.+..+.+....+..+..+.+.+.+.+..+.+..+...+..+.+..+...+..+.+....+..+.+.+..+....+.+......+...+.+...+.+..+.+....+.+...+..+.+..+..+.+..+...+..+..+.+....+.+....+.:
$
To save the program in a file use:
sf --gen 'Hello, world!' > hello.sf
To add a : instruction for each character in the string use -1 option:
sf --gen 'Hello, world!' -1 > hello.sf
To run the program:
$ sf --run hello.sf
Hello, world!
$
sf can compress a program:
$ sf --compress hello.sf
Compressing...
Compressed 44.23% in 0.06 seconds.
0.0+1+1.2.5.4+7.3.5+9+8+8.9.10.14.6+16.17.15.6.11.4.13.20.20+18+16+12.14+30.13+29.33.9:
$
sf uses the LZ78 algorithm.
To save a compressed program, same as above:
$ sf --compress hello.sf > hello.sfx
Compressing...
Compressed 44.23% in 0.06 seconds.
$
Of course, it is possible to directly generate a compressed program like so:
$ sf --gen-c 'Hello, world!' -1
Generating...
Generated 168 instructions in 0.16 seconds.
Compressing...
Compressed 36.90% in 0.29 seconds.
0.0+1+1.2.5.1:3.8.5+8:10.8+4+4:9+16.7.6+9.7+14.12.6:22+4.15.6.23.0:23+20.30+20+25.30.19.37.36+22.23:35.22:
You can also run a compressed program:
$ sf --run hello.sfx
Hello, world!
$
To decompress a program, use:
$ sf --decompress hello.sfx
Decompressing...
100%
Decompressed in 0.06 seconds.
.+.+..+.+...:.+..+..+.+.+.:+.+..+.+..+..:.+..+.+..+..:.+..+.+....:+..+.+.+..+..:..+.+.....:.+...+.+...:+.+..+.+....:+.+...+..+.+.:.+..+.+..+..:.+..+..+.+..:..+.+....+.:
$
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