Titles: FLTR ============= Contact: N. West, Oxford. Revision History:- ================ 3.01 N. West First version. 3.02 N. West Replace _CALL_USER by _OPTIONS 4.02 N. West Now in filter_fltr.dat. Titles Files ------------ filter_fltr.dat Verification ------------ Description ----------- This bank defines a single test of the Event Filter (FLT) system. The layout of the bank is identical to the NTPR. The test is true if the last variable in the n-tuple is not equal to zero. Note: the n-tuple is NOT stored. For more information see the Chapter: The Programmable Event Loop of the SNOMAN User's Manual. Data Words ---------- Data types: B(bit), I, F, D(double), H(hollerith 4 char) Fixed length Database Header. See titles_dbhdr.html. KNTPR Mnenonics relative to start of user data e.g.:- icons(ldfltr + KFLTR_ENB) is the enable flag word. Note KNTPR (as FLTR is identical to the NTPR). 1 I _RESERVE_1 First reserved word. DON'T TOUCH any of these reserved 2 I _RESERVE_2 Second reserved word. They are used internally. 3 I _SPARE_3 Third reserved word. No longer used. 4 I _ENB Enable flag. 5 I _PRIME_ALLOC Primary allocation for N-tuple (See HBOOK - HBOOKN). 6 F _UNDEF_VALUE Value used if variable undefined. 7 I _NO_PARTIAL Discard partial entry. 8 I _SCAN_D_S Scan D/S. = 0 No scan, = 1 AND scan, = 2 OR scan 9 I _OPTIONS Set of 1-bit flags:- Bit 0 Call NTP_PACK_USER. Bit 1 Collapse n-tuple. (No effect on FLTR). 10..H _TEXT The rest of the bank is free-format text consisting of:- The name of the N-tuple The definition of each variable END_OF_NTUPLE