rubyx/lib/register/padding.rb

22 lines
549 B
Ruby
Raw Normal View History

module Padding
# objects only come in lengths of multiple of 8 words
# but there is a constant overhead of 2 words, one for type, one for layout
# and as we would have to subtract 1 to make it work without overhead, we now have to add 7
def padded len
a = 32 * (1 + (len + 7)/32 )
#puts "#{a} for #{len}"
a
end
def padded_words words
padded(words*4) # 4 == word length, a constant waiting for a home
end
def padding_for length
pad = padded(length) - length - 8 # for header, type and layout
pad
end
end