cos2000v2/API.md

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## API List
APIs given by COS2000 libraries
### LIBC
All fonction in the "libc" library.
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`u32 libc_testapi(void);`
*Description: function to test if the syscall mecanism is running.*
* syscall id : **0**
* arguments : **0**
* results : **yes (always 0x66666666)**
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`u32 libc_exit(u32 errorcode);`
*Description: tell system that the user process is now finish. Free all ressources affected.*
* syscall id : **1**
* arguments : **1**
* * argument 1 : **u32 pid** *PID process to free*
* results : **no**
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