rubyx/lib/risc/padding.rb
2018-05-20 15:51:36 +03:00

23 lines
580 B
Ruby

# Helper functions to pad memory.
#
# Meory is always in lines, chunks of 8 words / 32 bytes
module Padding
# objects only come in lengths of multiple of 8 words / 32 bytes
# and there is a "hidden" 1 word that is used for debug/check memory corruption
def self.padded( len )
a = 32 * (1 + ((len + 3)/32).floor )
#puts "#{a} for #{len}"
a
end
def self.padded_words( words )
padded(words*4) # 4 == word length, a constant waiting for a home
end
def self.padding_for( length )
pad = padded(length) - length # for header, type
pad
end
end