sorcery

A code path and code generator for Dis that is esoteric in itself.
It outputs a code path you can follow to write the Dis program yourself.
Or it can output intermediate Dissent code which can be transpiled using Dissent.
It is only able to generate code for printing out a short string of text.

Uses

You need a value in Dis and don't now how to get it
Generate a Dis program to print some text for you

How does it work

Given an initial string of memory (the 7 operators in Dis) it uses 2 lookup tables to try to generate a combination of shift and subtract operators that result in the required memory values and then prints them out. IF a solution is found, it will shuffle the memory to try to shorten the outputted translated Dis code. The intermediate Dissent code will remain the same except for the SET instructions.
The full process to get Dis code would be:
text input -> code path -> Dissent code -> Dis code

Setup

Make a copy of Dissent from https://github.com/intangere/dissent into dissent/

Change full_goal in path.py to the text value you want.

Run python3 path.py. If this fails you can try python3 path.py --optimize which tries to reuse the data space
instead of expanding the data space.

If you want even shorter code you can try: python3 path.py --use-swap-only which avoids certain code paths that typically lead to longer code.

Example

Let's say we want to print out h so we set full_goal ='h' and run path.py.
Output code path:

Starting values [42, 62, 95, 33, 123, 125, 94, 124]
62->186 via 9 > ops. Memory space must contain: 62
33->11 via 1 > ops. Memory space must contain: 33
11->0 via 0 LOAD ops. Memory space must contain: 11
['a=', 11, 'd=', 186]->104 via 1 | ops. Memory space must contain: ['a=', 11, 'd=', 186]
104->STDOUT via 1 { ops. Memory space must contain: 104

Output dissent code:

;data
SET 35, 62
SET 36, 33
JUMP
IS_C 95
SUB 34
SUB 34
;runnable code
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 35
SHIFT 36
SHIFT 34
SUB 36
SHIFT 34
SUB 36
SUB 35
A_OUT

And if we transpile the dissent code:

^!_________________________________!>!____________________________
_____________________________*|*|*__>*__>*__>*__>*__>*__>*__>*__>*
__>*_>_*>|_*>||{!

Problems

There is only about 60 cells available to be used for memory which means only short text programs will be successfully generated.
--optimize works less than half the time. I recommend avoiding the feature until further notice.

Future?

This needs an entire rewrite to become truly useful. It was a proof of concept to see if it was even doable.
Expanding the memory space to allow for longer texts to be successfully found. This isn't that hard. You just need to insert a jump instruction that goes further than the data space which is currently about 34-95 and adjust the internal data_pointer accordingly.
Shortening the the initial jump to around 42 instead of 95 for shorter programs thus compressing outputted code even more
Data space chaining needs to be redone properly which would make --optimize work significantly better.
by default only output code path
--generate-code and --code-path to output only Dissent code generated or both
Move zero pointer to start of data space (34)
Proper command line arguments
Command line arg to specify input instead of modifying code

Info

Dis is a variant of malboge

intangere / sorcery