Mostra notizie nelle discussioni
  • Avatar
    ☺
    Forum Inutile
    Scritto da
    ::1
    il 2017-07-17 22:35:38.0 alle 2017-07-17 22:35:38.0
    Trollate totali: 12321
    Things Every Hacker Once Knew
    http://www.catb.org/esr/faqs/things-every-hacker-o...

    The Control modifier on your keyboard basically clears the top three bits of whatever character you type, leaving the bottom five and mapping it to the 0..31 range. So, for example, Ctrl-SPACE, Ctrl-@, and Ctrl-` all mean the same thing: NUL.

    Very old keyboards used to do Shift just by toggling the 32 or 16 bit, depending on the key; this is why the relationship between small and capital letters in ASCII is so regular, and the relationship between numbers and symbols, and some pairs of symbols, is sort of regular if you squint at it. The ASR-33, which was an all-uppercase terminal, even let you generate some punctuation characters it didn’t have keys for by shifting the 16 bit; thus, for example, Shift-K (0x4B) became a [ (0x5B)

    Sorpresa Sorpresa Sorpresa Sorpresa Sorpresa Sorpresa Sorpresa
    Young professional woman and busy mom.
<softv>

Pagina generata in 46 millisecondi

Utenti attivi: 13 nell'ultimo minuto, 35 negli ultimi cinque minuti, 78 negli ultimi 15 minuti