bfa - Brain Fuck Assembler
bfa is an assembler for the minimalized programming language Brain Fuck. It translates a better readable BFA source code to native absolutely unreadable Brain Fuck code. The produced code can be executed with a Brain Fuck Interpreter like bfi from Urban Mueller, or directly on a system providing a Brain Fuck processor.
The first argument INFILE is the file name of the BFA source code. This file will be translated to native Brain Fuck code and written to the file given by the second argument. Use - instead of a filename to use stdin or stdout.
bfa order.bfa order.b Read BFA code from order.bfa translate it to Brain Fuck code and write it to order.b.
bfa - order.b Read BFA code from stdin translate it to Brain Fuck code and write it to order.b.
bfa order.bfa - Read BFA code from order.bfa translate it to Brain Fuck code and write it to stdout.
One command per line. Empty lines will be ignored. Text behind the comment char ; will be ignored. Spaces and tabs outside quotation marks will be ignored. To print a quotation mark it must be escaped with \. The sequence \n will brake a line. To print the char \ itself it must be written as \\.
The following standard commands are currently supported:
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MVL MVR ADD SUB GET PUT LOB LOE |
Move left. This is equivalent to the Brain Fuck command <. Move right. This is equivalent to the Brain Fuck command >. Add one. This is equivalent to the Brain Fuck command +. Subtract one. This is equivalent to the Brain Fuck command -. Get char from stdin. This is equivalent to the Brain Fuck command ,. Write char to stdout. This is equivalent to the Brain Fuck command .. Begin loop. This is equivalent to the Brain Fuck command [. End loop. This is equivalent to the Brain Fuck command ]. |
The following extended commands are currently supported:
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MVL x MVR x ADD x SUB x GET x PUT x PUT ``Text'' SET SET x CPL x |
Move left x times. Move right x times. Add x. Subtract x. Get x chars from stdin. Write character number x to stdout. Write text to stdout. Set current value to zero. Set current value to x. Create x copies of current value to the left. After this copy action the current value will be zeroed. |
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CPR x |
Create x copies of the current value to the right. After this copy action the current value |
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0 1 |
Successfull program execution. Unsuccessfull program execution. An error message was sent to stderr. |
bfi.
Initial release.
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bfa now creates optimized Brain Fuck code. Man page added. Some other file changes in |
bfa was written by Klaus Reimer <kr@ailis.de> and is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.