SYS_SETFAULTHANDLER Set signal Handler
SYS_YIELD Yield remainder of timestamp
SYS_SLEEP Sleep until messaged or signaled
+SYS_TIMEDSLEEP Sleep until a specified time has elapsed
SYS_WAITEVENT Wait for an event
SYS_WAITTID Wait for a thread to do something
+SYS_SETSIGNALHANDLER Set the POSIX signal handler
+SYS_SETSIGNALMASK Sets the mask of disabled POSIX signals
+
SYS_SETNAME Sets the name of the current thread
SYS_GETNAME Gets the name of a thread
SYS_GETTID Get current thread ID
SYS_COPYFD Create a copy of a file handle
SYS_FDCTL Modify flags of a file descriptor
SYS_READ Read from an open file
+SYS_READAT Read from an open file (with offset)
SYS_WRITE Write to an open file
+SYS_WRITEAT Write to an open file (with offset)
SYS_IOCTL Perform an IOCtl Call
SYS_SEEK Seek to a new position in the file
SYS_READDIR Read from an open directory