# lcc

**Repository Path**: leon39_7/lcc

## Basic Information

- **Project Name**: lcc
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2024-06-02
- **Last Updated**: 2024-06-02

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# lcc

This is the source code of *A Retargetable C Compiler: Design and Implementation*. It's a completely implementation for C languange named lcc.

I modified some code to make it can be compiled on windows and also write a cmakelists with reference on makefile.nt. If you want to generate the solution, just run build.bat, but the directory build must be created first.

I am not sure whether lburg need to be regenerate or not, it is used to generate backend code. Attention here, only 32bits lburg can generate backend code. I also write a cmakelists for lburg, named lburg_CMakeLists.txt.

the test command could be as follow:

```
rcc.exe -target=x86/win32 test_case.c
```

the backend is optional:

```shell
-target=alpha/osf
-target=mips/irix
-target=sparc/sun
-target=sparc/solaris
-target=x86/win32
-target=x86/linux
-target=symbolic/osf
-target=symbolic/irix
-target=symbolic
-target=bytecode
-target=null
```

example code

```c
#include <stdio.h>

int main(){
	int m = 9;
	int n = 10;
	int result = m + n;
	printf("%d\n", result);
}
```

the compiled result of the example code

```assembly
_TEXT segment
_main:
push ebx
push esi
push edi
push ebp
mov ebp,esp
sub esp,12
mov dword ptr (-4)[ebp],9
mov dword ptr (-8)[ebp],10
mov edi,dword ptr (-4)[ebp]
mov esi,dword ptr (-8)[ebp]
lea edi,[esi][edi]
mov dword ptr (-12)[ebp],edi
mov edi,dword ptr (-12)[ebp]
push edi
lea edi,(L2)
push edi
call _printf
add esp,8
mov eax,0
L1:
mov esp,ebp
pop ebp
pop edi
pop esi
pop ebx
ret
_TEXT ends
```



[*A Retargetable C Compiler: Design and Implementation* book link](https://pan.baidu.com/s/1_uBAJ2lPaO4EsESXvvGl0g) and withdraw code: ox2l