Re: how to write a compiler

p2sam@uwaterloo.ca (Pedro Sam) wrote:


> Ivan Boldyrev <boldyrev+nospam@cgitftp.uiggm.nsc.ru> wrote:
> > On 8456 day of my life Suresh Kumar J. wrote:
> >>> i'm taking up a 6 month term project in my bachelor's degree
> >>> course.can someone tell me the roadmap for writing a complier.and also
> >>> suggest the language(maybe c,java etc..or develop a custom
> >>> lang??)....plus is it a good idea to try for translators(c to
> >>> java,MSIL to java bytecode etc...)in the same semester??
> >>> samy
> >>
> >> Writing a compiler in 6 months by a single person may not be possible.
> >> You may want to try a part of it.
> >
> > JFYI: some student in South America (AFAIR) wrote C compiler in
> > Haskell in 6 months. May be, it is foundable by Google :)
>
> Legend has it, a few terms back, some students from Waterloo taking
> cs444 wrote a C compiler in 3 months which is complete and correct
> enough to compile and play Doom.


Many years ago, a copy of the Byte magazine contained source code for a
toy Pascal compiler. First stage translated to something similar to
P-code, second stage compiled to 8080 assembler (I said many years ago).
I typed it in, making all the necessary changes so it would run on
Commodore BASIC, and after two days it did compile and execute tiny
pascal programs.


I didn't say it compiled them fast and executed them fast :-)

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