#include <syscall.h>
int write_file(const char *path,const void *buff,
unsigned offset,unsigned count,unsigned *writes)
{
ksys70_t k;
k.p00 = 3;
k.p04 = offset;
k.p12 = count;
k.cbuf16 = buff;
k.p20 = 0;
k.p21 = path;
return FS_Service(&k, writes);
}