23 lines
645 B
Ruby
23 lines
645 B
Ruby
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module Padding
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# objects only come in lengths of multiple of 8 words
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# but there is a constant overhead of 2 words, one for type, one for layout
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# and as we would have to subtract 1 to make it work without overhead, we now have to add 7
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def padded len
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a = 32 * (1 + (len + 7)/32 )
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#puts "#{a} for #{len}"
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a
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end
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def padded_words words
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padded(words*4) # 4 == word length, a constant waiting for a home
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end
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def padding_for length
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pad = padded(length) - length - 8 # for header, type and layout
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puts "padded #{length.to_s(16)} with #{pad.to_s(16)} stream pos #{@stream.length.to_s(16)}"
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pad
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end
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end
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