pub const SYS_CLASS: usize =    0xF000_0000;
pub const SYS_CLASS_PATH: usize=0x1000_0000;
pub const SYS_CLASS_FILE: usize=0x2000_0000;

pub const SYS_ARG: usize =      0x0F00_0000;
pub const SYS_ARG_SLICE: usize =0x0100_0000;
pub const SYS_ARG_MSLICE: usize=0x0200_0000;
pub const SYS_ARG_PATH: usize = 0x0300_0000;

pub const SYS_RET: usize =      0x00F0_0000;
pub const SYS_RET_FILE: usize = 0x0010_0000;

pub const SYS_LINK: usize =     SYS_CLASS_PATH | SYS_ARG_PATH | 9;
pub const SYS_OPEN: usize =     SYS_CLASS_PATH | SYS_RET_FILE | 5;
pub const SYS_RMDIR: usize =    SYS_CLASS_PATH | 84;
pub const SYS_UNLINK: usize =   SYS_CLASS_PATH | 10;

pub const SYS_CLOSE: usize =      SYS_CLASS_FILE | 6;
pub const SYS_DUP: usize =        SYS_CLASS_FILE | SYS_RET_FILE | 41;
pub const SYS_DUP2: usize =       SYS_CLASS_FILE | SYS_RET_FILE | 63;
pub const SYS_READ: usize =       SYS_CLASS_FILE | SYS_ARG_MSLICE | 3;
pub const SYS_WRITE: usize =      SYS_CLASS_FILE | SYS_ARG_SLICE | 4;
pub const SYS_LSEEK: usize =      SYS_CLASS_FILE | 19;
pub const SYS_FCHMOD: usize =     SYS_CLASS_FILE | 94;
pub const SYS_FCHOWN: usize =     SYS_CLASS_FILE | 207;
pub const SYS_FCNTL: usize =      SYS_CLASS_FILE | 55;
pub const SYS_FEVENT: usize =     SYS_CLASS_FILE | 927;

// TODO: Rename FMAP/FUNMAP to MMAP/MUNMAP
pub const SYS_FMAP_OLD: usize =   SYS_CLASS_FILE | SYS_ARG_SLICE | 90;
pub const SYS_FMAP: usize =       SYS_CLASS_FILE | SYS_ARG_SLICE | 900;
// TODO: SYS_FUNMAP should be SYS_CLASS_FILE
// TODO: Remove FMAP/FMAP_OLD
pub const SYS_FUNMAP_OLD: usize = SYS_CLASS_FILE | 91;
pub const SYS_FUNMAP: usize =     SYS_CLASS_FILE | 92;
pub const SYS_MREMAP: usize = 155;

pub const SYS_FPATH: usize =      SYS_CLASS_FILE | SYS_ARG_MSLICE | 928;
pub const SYS_FRENAME: usize =    SYS_CLASS_FILE | SYS_ARG_PATH | 38;
pub const SYS_FSTAT: usize =      SYS_CLASS_FILE | SYS_ARG_MSLICE | 28;
pub const SYS_FSTATVFS: usize =   SYS_CLASS_FILE | SYS_ARG_MSLICE | 100;
pub const SYS_FSYNC: usize =      SYS_CLASS_FILE | 118;
pub const SYS_FTRUNCATE: usize =  SYS_CLASS_FILE | 93;
pub const SYS_FUTIMENS: usize =   SYS_CLASS_FILE | SYS_ARG_SLICE | 320;

// b = file, c = flags, d = required_page_count, uid:gid = offset
pub const KSMSG_MMAP: usize = SYS_CLASS_FILE | 72;

// b = file, c = flags, d = page_count, uid:gid = offset
pub const KSMSG_MSYNC: usize = SYS_CLASS_FILE | 73;

// b = file, c = page_count, uid:gid = offset
pub const KSMSG_MUNMAP: usize = SYS_CLASS_FILE | 74;

// b = file, c = flags, d = page_count, uid:gid = offset
pub const KSMSG_MMAP_PREP: usize = SYS_CLASS_FILE | 75;

pub const SYS_CLOCK_GETTIME: usize = 265;
pub const SYS_EXIT: usize =     1;
pub const SYS_FUTEX: usize =    240;
pub const SYS_GETEGID: usize =  202;
pub const SYS_GETENS: usize =   951;
pub const SYS_GETEUID: usize =  201;
pub const SYS_GETGID: usize =   200;
pub const SYS_GETNS: usize =    950;
pub const SYS_GETPID: usize =   20;
pub const SYS_GETPGID: usize =  132;
pub const SYS_GETPPID: usize =  64;
pub const SYS_GETUID: usize =   199;
pub const SYS_IOPL: usize =     110;
pub const SYS_KILL: usize =     37;
pub const SYS_MPROTECT: usize = 125;
pub const SYS_MKNS: usize =     984;
pub const SYS_NANOSLEEP: usize =162;
pub const SYS_PHYSALLOC: usize =945;
pub const SYS_PHYSALLOC3: usize=9453;
pub const SYS_PHYSFREE: usize = 946;
pub const SYS_PHYSMAP: usize =  947;
pub const SYS_VIRTTOPHYS: usize=949;
pub const SYS_SETPGID: usize =  57;
pub const SYS_SETREGID: usize = 204;
pub const SYS_SETRENS: usize =  952;
pub const SYS_SETREUID: usize = 203;
pub const SYS_SIGACTION: usize =67;
pub const SYS_SIGPROCMASK:usize=126;
pub const SYS_SIGRETURN: usize =119;
pub const SYS_UMASK: usize =    60;
pub const SYS_WAITPID: usize =  7;
pub const SYS_YIELD: usize =    158;