Re: [Tinycc-devel] Can a biggener (and idiot) like me read and understand TCC's backend so I can create my own frontend with it?

[rempas]

29 Ιαν 2022, 12:10 Από eligis@orange.fr:

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> I suggest you start with something simple:
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> A language that implement 4 arithmetic integer operations, has integer 
> variables, allows to define functions and includes print function as library 
> function.
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> Chose the syntax you like and start to write you own compiler that generate 
> intermediate internal code, then choose a backend (for example C) that 
> generates code corresponding to your intermediate code.
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> You’ll learn of lot of things and you’ll get 80% of the knowledge you’ll need 
> to write serious things.
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> This globally how works my Lisp compiler from Lisp files up to standalone 
> executable.
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> See https://en.wikipedia.org/wiki/OpenLisp#Compiler
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> From:>  Tinycc-devel 
> [mailto:tinycc-devel-bounces+eligis=orange.fr@nongnu.org] > On Behalf Of > ian
> Sent:>  Saturday, January 29, 2022 10:43
> To:>  rempas via Tinycc-devel
> Subject:>  Re: [Tinycc-devel] Can a biggener (and idiot) like me read and 
> understand TCC's backend so I can create my own frontend with it?
>
>
Hi! Thank you for your answer but I really have a hard time to understand what 
you are saying In the second paragraph.

When saying to choose a backend the generates code, you mean a compiler right? 
Also, how will this generate code corresponding to mine? Isn't the code 
specific to the backend/compiler? And some compilers (like TCC) imidiatly 
create object files or assembly and don't generate an Intermediate 
representation file. But even If I could make an IR that would mimic the IR of 
another compiler (let's say Clang/LLVM), how would this help me understand how 
this translates this to a sequence of bytes and how the instructions are 
represented as bytes?