ucc is an ANSI C Compiler. Its code size is about 15,000 lines. The lexer, parser and code generator are all hand-written. The code structure is very clear and straightforward. And there is an interesting value numbering algorithm. It also has a document explaining the internal implementation. If you are interested at this compiler, you can download it from http://sourceforge.net/projects/ucc
On May 11, 11:13 am, dreamAnders <dream_and...@yahoo.com.cn> wrote:
> ucc is an ANSI C Compiler. Its code size is about 15,000 lines.
Tryin to compile this : #include <stdio.h> int main() { printf("hello world\n"); return 0;
}
gives me this: [k2@Antec ucc]$ ucc t.c fatal error in /usr/local/lib/ucc/ucl ucc fatal error If I remove the include it compiles OK. Where the ucl searches for <stdio.h> ?
On May 11, 9:13 am, dreamAnders <dream_and...@yahoo.com.cn> wrote:
> ucc is an ANSI C Compiler. Its code size is about 15,000 lines. > If you are interested at this compiler, you can download it fromhttp://sourceforge.net/projects/ucc
Its code can be followed using Eclipse Debugger which makes great reading. There is new version that solved the fatal error message on system that has memory file handling bad. It is also smaller and faster then gcc.
There is now a tendency to write C compilers using more liberal licences than GPL, which is used by gcc. Examples: http://clang.llvm.org/ and http://pcc.ludd.ltu.se/ They can be used even as libraries for different purposes like backends for advanced code generators to C, code checkers, IDE syntax highlighting, etc. Probably all of these compilers are much easier to integrate in other projects than gcc.
For ucc if someone can contact the developer, I have a suggestion: please do not target MASM for the assembly generated code, because the MASM licence restricts MASM redistribution both for free or commercial projects so it will render ucc useless to developers who want to distribute ucc or use ucc as part of other packages. I don't even know if you have the right to include ml.exe in the ucc package. It is much better to generate assembly for NASM ( http://sourceforge.net/projects/nasm ) (it can also be used in linux or MacOS as a gas replacement), YASM ( http://www.tortall.net/projects/yasm/ ) (also NASM compatible) or FASM ( http://flatassembler.net/ ) (this is written in assembly so it can't be interfaced with C programs as a library).
"dreamAnders" <dream_and...@yahoo.com.cn> wrote in message > ucc is an ANSI C Compiler. Its code size is about 15,000 lines. > The lexer, parser and code generator are all hand-written. > The code structure is very clear and straightforward. And there is an > interesting value numbering algorithm. > It also has a document explaining the internal implementation. > If you are interested at this compiler, you can download it from > http://sourceforge.net/projects/ucc
