Changes between Version 3 and Version 4 of IDISA_Vertical


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Timestamp:
May 6, 2011, 11:27:39 AM (8 years ago)
Author:
cameron
Comment:

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  • IDISA_Vertical

    v3 v4  
    1111(natural binary interpretation).
    1212
    13 In general, result fields are converted to N-bits by truncation, or
    14 signed or unsigned saturation.   When the results depend on the
    15 interpration t(x) refers to the truncation of a field to the N least
    16 significant bits of x, ss(x) refers to conversion by signed
    17 saturation and us(x) refers to conversion by unsigned saturation.
    18 
     13In general, result fields are converted to N-bits by truncation.
    1914
    2015== IDISA Binary Operations ==
     
    5146 - l(a,,i,,) = a,,i,, & (1 << N/2 - 1)
    5247
     48Some operations also involve an immediate shift operand supplied
     49as template parameter `<k>`: these shift all fields by the same
     50constant amount.
     51
    5352|| `abs` || absolute value || r,,i,, = if s(a,,i,,) < 0 then -a,,i,, else a,,i,, ||
    5453|| `neg` || negate || r,,i,, = -s(a,,i,,) ||