ninfo

ninfo.rb

#!/usr/bin/ruby

s = ARGV[0]

if s =~ /^0x/ then
    n = s.hex
else
    n = s.to_i
end

is_64 = (n > 0xFFFFFFFF)

def binary4(n)
	sprintf("%04b", n)
end

def binary8(n)
	binary4((n & 0xF0) >> 4) + "." + binary4(n & 0x0F)
end

def binary16(n)
	binary8((n & 0xFF00) >> 8) + " : " + binary8(n & 0x00FF)
end

def binary32(n)
	binary16((n & 0xFFFF0000) >> 16) + " | " + binary16(n & 0x0000FFFF)
end


if is_64 then
    printf "   long: %d\n",  n.to_s
    printf " double: %s\n",  [ n ].pack("Q").unpack("d")[0].to_s
    printf "\n"
    printf " binary: %s\n",     binary32((n & 0xFFFFFFFF00000000) >> 32)
    printf "         %s\n",     binary32( n & 0x00000000FFFFFFFF       )
    printf "    hex: 0x%08x\n", n  
    printf "\n"
    printf "~binary: %s\n",     binary32((~n & 0xFFFFFFFF00000000) >> 32)
    printf "         %s\n",     binary32(~n & 0x00000000FFFFFFFF       )
    printf "   ~hex: 0x%08x\n", (~n & 0xFFFFFFFFFFFFFFFF)

else
    printf "    int: %d\n",  n.to_s
    printf "  float: %s\n",  [ n ].pack("l").unpack("f")[0].to_s
    printf "    4cc: '%s'\n",  [ n ].pack("l").unpack("c4").reverse.pack("c4").to_s

    printf "\n"
    printf " binary: %s\n",     binary32(n)
    printf "    hex: 0x%08x\n", n  
    printf "\n"
    printf "~binary: %s\n",     binary32(~n & 0xFFFFFFFF)
    printf "   ~hex: 0x%08x\n", (~n & 0xFFFFFFFF)
end