4 ms·

Ruby inline assembler

64 points by lawl 14y ago

api 14y ago
This is like putting NOS on a school bus.
- deleted 14y ago
  [deleted]
- JonnieCache 14y ago
  That's ironic because it was written on a bus. See the following rubycon talk, "worst idea ever!" which covers this and several other even more horrendously ill-advised gems: http://www.confreaks.com/videos/198-rubyconf2009-worst-ideas-ever http://www.confreaks.com/videos/198-rubyconf2009-worst-ideas... It includes a way to rescue from segfaults, which goes quite nicely with the inline assembly :) If you are a rubyist you should watch this. It's hilarious. If you think this wilson gem is crazy wait until you see the other shit they get up to.
nathell 14y ago
Been doing something similar for Clojure: https://github.com/nathell/lithium https://github.com/nathell/lithium http://blog.danieljanus.pl/blog/2012/05/14/lithium/ http://blog.danieljanus.pl/blog/2012/05/14/lithium/
artellectual 14y ago
Hats off to you! This is simply amazing!
- lawl 14y ago
  I didn't write it. I just found it. Maybe should have mentioned that. But I thought it was clear. Sorry.
helper 14y ago
Cool. Looks similar to ronin: https://github.com/ronin-ruby/ronin-asm https://github.com/ronin-ruby/ronin-asm. I'm curious if there are equivalent tools for doing this sort of thing for other cpu families. Specifically, what do people use for MIPS and ARM architectures?
- sokrates 14y ago
  What's different (from a quick look at ronin) is that this actually runs the assembled code within the currently running ruby interpreter. That's a lot more than a DSL for creating assembly.
jbarnette 14y ago
My favorite thing about this library is that it parses the NASM manual: https://github.com/seattlerb/wilson/blob/master/lib/wilson.rb#L75-L77 https://github.com/seattlerb/wilson/blob/master/lib/wilson.r...
donavanm 14y ago
You guys do understand this is a joke, right? It's a (cool) example of stupid things that you can get up to in ruby. See the ruby con talk for other examples. Enterprise Ruby is my personal favorite.
- tzumby 14y ago
  The rdoc for enterprise ruby is hilarious (https://github.com/tenderlove/enterprise#synopsis https://github.com/tenderlove/enterprise#synopsis) "Let’s convert that crappy ruby code to XML"
  - jrabone 14y ago
    I don't think the community should be laughing too loudly about enterprise XML, given the security difficulties Rails has been having with its serialisation formats. How much did people lose in that Bitcoin exchange hack?
    - donavanm 14y ago
      Approximately 1 hojillion[1] dollars? But I think we both know that's not the real question here. Not to dissect the frog too much, but the joke is that XML == Enterprise === Grown Up. Therefore more XML is mo betta. [1] www.penny-arcade.com/comic/2001/6/22
drv 14y ago
Pretty neat hack. However, it's a bit odd that it parses the intended-for-humans NASM documentation instead of the machine-readable insns.dat that NASM actually uses to generate opcodes: http://repo.or.cz/w/nasm.git/blob/HEAD:/insns.dat http://repo.or.cz/w/nasm.git/blob/HEAD:/insns.dat
kgo 14y ago
I wrote a similar thing a while ago for python: http://www.grant-olson.net/python/pyasm http://www.grant-olson.net/python/pyasm It even mapped all the exported symbols from the python API so you could do stuff like: CALL PySys_WriteStdout "Hello, World!\n\0" About every three months I get an email from someone where I have to explain it was a proof-of-concept and never intended for production use.

64 points by lawl 14y ago

api 14y ago

This is like putting NOS on a school bus.

deleted 14y ago
[deleted]
JonnieCache 14y ago
That's ironic because it was written on a bus. See the following rubycon talk, "worst idea ever!" which covers this and several other even more horrendously ill-advised gems: http://www.confreaks.com/videos/198-rubyconf2009-worst-ideas-ever http://www.confreaks.com/videos/198-rubyconf2009-worst-ideas... It includes a way to rescue from segfaults, which goes quite nicely with the inline assembly :) If you are a rubyist you should watch this. It's hilarious. If you think this wilson gem is crazy wait until you see the other shit they get up to.

nathell 14y ago

Been doing something similar for Clojure: https://github.com/nathell/lithium https://github.com/nathell/lithium http://blog.danieljanus.pl/blog/2012/05/14/lithium/ http://blog.danieljanus.pl/blog/2012/05/14/lithium/

artellectual 14y ago

Hats off to you! This is simply amazing!

lawl 14y ago
I didn't write it. I just found it. Maybe should have mentioned that. But I thought it was clear. Sorry.

helper 14y ago

Cool. Looks similar to ronin: https://github.com/ronin-ruby/ronin-asm https://github.com/ronin-ruby/ronin-asm. I'm curious if there are equivalent tools for doing this sort of thing for other cpu families. Specifically, what do people use for MIPS and ARM architectures?

sokrates 14y ago
What's different (from a quick look at ronin) is that this actually runs the assembled code within the currently running ruby interpreter. That's a lot more than a DSL for creating assembly.

jbarnette 14y ago

My favorite thing about this library is that it parses the NASM manual: https://github.com/seattlerb/wilson/blob/master/lib/wilson.rb#L75-L77 https://github.com/seattlerb/wilson/blob/master/lib/wilson.r...

donavanm 14y ago

You guys do understand this is a joke, right? It's a (cool) example of stupid things that you can get up to in ruby. See the ruby con talk for other examples. Enterprise Ruby is my personal favorite.

tzumby 14y ago
The rdoc for enterprise ruby is hilarious (https://github.com/tenderlove/enterprise#synopsis https://github.com/tenderlove/enterprise#synopsis) "Let’s convert that crappy ruby code to XML"
- jrabone 14y ago
  I don't think the community should be laughing too loudly about enterprise XML, given the security difficulties Rails has been having with its serialisation formats. How much did people lose in that Bitcoin exchange hack?
  - donavanm 14y ago
    Approximately 1 hojillion[1] dollars? But I think we both know that's not the real question here. Not to dissect the frog too much, but the joke is that XML == Enterprise === Grown Up. Therefore more XML is mo betta. [1] www.penny-arcade.com/comic/2001/6/22

drv 14y ago

Pretty neat hack. However, it's a bit odd that it parses the intended-for-humans NASM documentation instead of the machine-readable insns.dat that NASM actually uses to generate opcodes: http://repo.or.cz/w/nasm.git/blob/HEAD:/insns.dat http://repo.or.cz/w/nasm.git/blob/HEAD:/insns.dat

kgo 14y ago

I wrote a similar thing a while ago for python: http://www.grant-olson.net/python/pyasm http://www.grant-olson.net/python/pyasm It even mapped all the exported symbols from the python API so you could do stuff like: CALL PySys_WriteStdout "Hello, World!\n\0" About every three months I get an email from someone where I have to explain it was a proof-of-concept and never intended for production use.