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bubach



Joined: 17 Sep 2004
Posts: 341
Location: Trollhättan, Sweden
bubach
I am wondering if anybody have any experience in compiler construction?
I am thinking of writing some sort of simple compiler engine in fasm that could be used to create SimpleC or SimplePascal. Wink
Any comments/suggestions?

PS: I would use it in my own OS.

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Post 12 Feb 2005, 13:57
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
maybe privalov could have some experiences with somthing like that, but i am not sure. Wink
Post 12 Feb 2005, 18:10
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bubach



Joined: 17 Sep 2004
Posts: 341
Location: Trollhättan, Sweden
bubach
He may have.. Wink
But on the other hand, it for HLL languages which may be very diffrent to write a compiler for.

I don't really know if my future compiler should produce an .asm file or if i somehow should include fasm in my compiler? Or if I should try and make a "macro-compiler" instead..
Post 12 Feb 2005, 18:17
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7801
Location: Kraków, Poland
Tomasz Grysztar
One of my intentions when designing fasm was to make it a good back-end for the HLL compilers. I had made my first assembler when trying to write my own HLL compiler in 1998, but that project was never finished. However later, when I concentrated on fasm development, some other programmers started to use fasm for this purpose. The first such compiler was the B-Flat by Ken Martwick (he also helped me with writing the very first documentation for fasm), since it's open-source I'm attaching it here - maybe you will find it useful, but this project never grown up.


Description: B-Flat compiler, version 0.50
Download
Filename: bflat050.zip
Filesize: 302.78 KB
Downloaded: 323 Time(s)

Post 12 Feb 2005, 18:59
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crc



Joined: 21 Jun 2003
Posts: 637
Location: Penndel, PA [USA]
crc
A Forth compiler is easy to implement Wink

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Post 12 Feb 2005, 19:09
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bubach



Joined: 17 Sep 2004
Posts: 341
Location: Trollhättan, Sweden
bubach
Thanks Privalov, but is seems like it's written in C (quick look). Can't see any connection to fasm.. I'll take a closer look.
Maybe I should download RetroForth and see if I can learn something.. Wink
Post 12 Feb 2005, 20:22
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beppe85



Joined: 23 Oct 2004
Posts: 181
beppe85
I think it would be better to generate assembly and pass it to a dll built from fasm. So we could use the last fasm version without having to rebuild the compiler.

If you can, read "Modern Compiler Implementation in C" by Andrew Appel. I prefer the Java version, but C resembles more asm than does Java.

I have some knownledgement about the matter, but never wrote a compiler in a traditional imperative fashion, but maybe I could help you.

First define simple. It should be simple to build, make simple optimizations, fast or what? You want to use compiler-compiler tools(i'm not aware it they exist for asm), or wnat to hand-code all?

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Post 12 Feb 2005, 22:28
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iklin



Joined: 20 Mar 2004
Posts: 120
Location: Russia, Siberia
iklin
There is Flat C written in Fasm. It's russian site. And implementation is not so good. It's only changed fasm sources.
http://www.compilers.narod.ru/proj.html

So... Time to time I'm working on such things and now have a great collection of docs. If you are so interesting I'll make a list of all of docs, links and stuffs and post it here. Some times later...
Post 13 Feb 2005, 09:10
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bubach



Joined: 17 Sep 2004
Posts: 341
Location: Trollhättan, Sweden
bubach
Thanks.. I would glady take any links you may have..
I found some compiler compilers on the net, but i prefer building it myself.
Building it to asm sources firt may be the best idea, that way we could see excatly what the compiler produces.. Wink
I am thinking of how I could make it possible to change syntax for diffrent languages, like between C and Pascal.
Post 13 Feb 2005, 14:12
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beppe85



Joined: 23 Oct 2004
Posts: 181
beppe85
bubach wrote:
I am thinking of how I could make it possible to change syntax for diffrent languages, like between C and Pascal.

You mean a compiler like GCC? In this case, you have well-delineated front- and back-end's. You'll need a intermediate representation of source, it should not be nor source language nor target machine dependent, or all source languages or all target machines have some in common. FASM uses a flat representation(still text), but other representations include AST(abstract syntax tree), and triples and quadruples(arrays of record with 3/4 fields)

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Post 13 Feb 2005, 15:23
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iklin



Joined: 20 Mar 2004
Posts: 120
Location: Russia, Siberia
iklin
Quote:
I am thinking of how I could make it possible to change syntax for diffrent languages, like between C and Pascal.


Look at this - http://home.perm.ru/~strannik/ - a strange C-Pascal-Modula compiler. Confused
And this - http://yallie.narod.ru/ - is another good place with many links.
And this - http://webster.cs.ucr.edu/ - if you don't know! There is a tutorial for writing assembler. Smile
And this - http://compilers.iecc.com/crenshaw/ - it's a classic tutorial! Smile
And this - http://www.compilerconnection.com/books/books.htm - is interesting.

Sorry, now I'm too busy and just now I'm hurry... Sad
Post 14 Feb 2005, 18:17
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