SYS_MKDIR                    = 136 // { int mkdir(char *path, int mode); }
	SYS_RMDIR                    = 137 // { int rmdir(char *path); }
	SYS_UTIMES                   = 138 // { int utimes(char *path, struct timeval *tptr); }
	SYS_ADJTIME                  = 140 // { int adjtime(struct timeval *delta, struct timeval *olddelta); }
	SYS_SETSID                   = 147 // { int setsid(void); }

	SYS_MKDIR                    = 136 // { int mkdir(char *path, int mode); }
	SYS_RMDIR                    = 137 // { int rmdir(char *path); }
	SYS_UTIMES                   = 138 // { int utimes(char *path, struct timeval *tptr); }
	SYS_ADJTIME                  = 140 // { int adjtime(struct timeval *delta, struct timeval *olddelta); }
	SYS_SETSID                   = 147 // { int setsid(void); }

	case TCOMPLEX64:
		w = 8
		t.align = 4
		t.floatRegs = 2
		t.setAlg(ACPLX64)

	case TCOMPLEX128:
		w = 16
		t.align = uint8(RegSize)
		t.floatRegs = 2
		t.setAlg(ACPLX128)

	case TPTR:
		w = int64(PtrSize)
		t.intRegs = 1
		CheckSize(t.Elem())
		t.ptrBytes = int64(PtrSize) // See PtrDataSize

	case TUNSAFEPTR:
		w = int64(PtrSize)
		t.intRegs = 1
		t.ptrBytes = int64(PtrSize)

	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }
	SYS_UTIMES         = 76  // { int sys_utimes(const char *path, const struct timeval *tptr); }
	SYS_FUTIMES        = 77  // { int sys_futimes(int fd, const struct timeval *tptr); }
	SYS_GETGROUPS      = 79  // { int sys_getgroups(int gidsetsize, gid_t *gidset); }
	SYS_SETGROUPS      = 80  // { int sys_setgroups(int gidsetsize, const gid_t *gidset); }

	SYS_MADVISE        = 75  // { int sys_madvise(void *addr, size_t len, int behav); }
	SYS_UTIMES         = 76  // { int sys_utimes(const char *path, const struct timeval *tptr); }
	SYS_FUTIMES        = 77  // { int sys_futimes(int fd, const struct timeval *tptr); }
	SYS_MINCORE        = 78  // { int sys_mincore(void *addr, size_t len, char *vec); }
	SYS_GETGROUPS      = 79  // { int sys_getgroups(int gidsetsize, gid_t *gidset); }

	SYS_MKDIR                    = 136 // { int mkdir(char *path, int mode); }
	SYS_RMDIR                    = 137 // { int rmdir(char *path); }
	SYS_UTIMES                   = 138 // { int utimes(char *path, struct timeval *tptr); }
	SYS_ADJTIME                  = 140 // { int adjtime(struct timeval *delta, struct timeval *olddelta); }
	SYS_SETSID                   = 147 // { int setsid(void); }

	SYS_MKDIR                    = 136 // { int mkdir(char *path, int mode); }
	SYS_RMDIR                    = 137 // { int rmdir(char *path); }
	SYS_UTIMES                   = 138 // { int utimes(char *path, struct timeval *tptr); }
	SYS_ADJTIME                  = 140 // { int adjtime(struct timeval *delta, struct timeval *olddelta); }
	SYS_SETSID                   = 147 // { int setsid(void); }

	SYS_MKDIR                    = 136 // { int mkdir(char *path, int mode); }
	SYS_RMDIR                    = 137 // { int rmdir(char *path); }
	SYS_UTIMES                   = 138 // { int utimes(char *path, struct timeval *tptr); }
	SYS_ADJTIME                  = 140 // { int adjtime(struct timeval *delta, struct timeval *olddelta); }
	SYS_SETSID                   = 147 // { int setsid(void); }

	// but I'd like to use the @ notation only when strictly necessary.)
	if visited == nil {
		visited = map[*Type]int{}
	}
	visited[t] = b.Len()
	defer delete(visited, t)

	switch t.Kind() {
	case TPTR:
		b.WriteByte('*')
		switch mode {
		case fmtTypeID, fmtTypeIDName:
			if verb == 'S' {
				tconv2(b, t.Elem(), 'S', mode, visited)
				return
			}
		}
		tconv2(b, t.Elem(), 'v', mode, visited)

	SYS_MUNLOCK                  = 204 // { int munlock(const void *addr, size_t len); }
	SYS_UNDELETE                 = 205 // { int undelete(char *path); }
	SYS_FUTIMES                  = 206 // { int futimes(int fd, struct timeval *tptr); }
	SYS_GETPGID                  = 207 // { int getpgid(pid_t pid); }
	SYS_POLL                     = 209 // { int poll(struct pollfd *fds, u_int nfds, \