# cs6332: inline assembly
```=
asm ( assembler template
: output operands // (optional)
: input operands // (optional)
: clobbered registers list // (optional)
);
```
* *clobbered registers* list: A comma-separated list of registers or other values changed by the AssemblerTemplate, beyond those listed as outputs. An empty list is permitted
## Example
```c=
int main(void)
{
int foo = 10, bar = 15;
__asm__ __volatile__("addl %%ebx,%%eax"
:"=a"(foo)
:"a"(foo), "b"(bar)
);
printf("foo+bar=%d\n", foo);
return 0;
}
```
## Resources
* [How to Use Inline Assembly Language in C Code]
* [GAS examples]
* [GCC inline assembly howto]
[GAS examples]:https://cs.lmu.edu/~ray/notes/gasexamples/
[How to Use Inline Assembly Language in C Code]:https://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html
[GCC inline assembly howto]:https://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html
###### tags: `cs6332`,`inline`,`assembly`