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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 DFS Tapes |
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Length: 1024 (0x400)
Types: EM, TextFile
Names: »PARITY_OF_SLOW.EM«
└─⟦b4205821b⟧ Bits:30000743 8mm tape, Rational 1000, DFS, D_12_7_3 SEQ288
└─ ⟦this⟧ »PARITY_OF_SLOW.EM«
└─⟦b434774df⟧ Bits:30000528 8mm tape, Rational 1000, DFS, D_12_6_5
└─ ⟦this⟧ »PARITY_OF_SLOW.EM«
└─⟦bc1274df5⟧ Bits:30000750 8mm tape, Rational 1000, DFS backup from PAM's R1000
└─ ⟦this⟧ »PARITY_OF_SLOW.EM«
! returns the 8 bit parity of a 64 bit word word (%1% = WORD) [or [lshift [and 1 [count_ones [#extract %1% 00 8]]] 7], [or [lshift [and 1 [count_ones [#extract %1% 08 8]]] 6], [or [lshift [and 1 [count_ones [#extract %1% 10 8]]] 5], [or [lshift [and 1 [count_ones [#extract %1% 18 8]]] 4], [or [lshift [and 1 [count_ones [#extract %1% 20 8]]] 3], [or [lshift [and 1 [count_ones [#extract %1% 28 8]]] 2], [or [lshift [and 1 [count_ones [#extract %1% 30 8]]] 1], [and 1 [count_ones [#extract %1% 38 8]]]]]]]]]]«nul»