# File src/ISAAC.rb, line 60
                def isaac
                        i = 0
                        x = 0
                        y = 0

                        @cc += 1
                        @bb += @cc
                        @bb & 0xffffffff

                        while (i < 256) do 
                                x = @mm[i]
                                @aa = (@mm[(i + 128) & 255] + (@aa^(@aa << 13)) ) & 0xffffffff
                                @mm[i] = y = (@mm[(x>>2)&255] + @aa + @bb ) & 0xffffffff
                                @randrsl[i] = @bb = (@mm[(y>>10)&255] + x ) & 0xffffffff
                                i += 1

                                x = @mm[i]
                                @aa = (@mm[(i+128)&255] + (@aa^(0x03ffffff & (@aa >> 6))) ) & 0xffffffff
                                @mm[i] = y = (@mm[(x>>2)&255] + @aa + @bb ) & 0xffffffff
                                @randrsl[i] = @bb = (@mm[(y>>10)&255] + x ) & 0xffffffff
                                i += 1

                                x = @mm[i]
                                @aa = (@mm[(i + 128)&255] + (@aa^(@aa << 2)) ) & 0xffffffff
                                @mm[i] = y = (@mm[(x>>2)&255] + @aa + @bb ) & 0xffffffff
                                @randrsl[i] = @bb = (@mm[(y>>10)&255] + x ) & 0xffffffff
                                i += 1

                                x = @mm[i]
                                @aa = (@mm[(i+128)&255] + (@aa^(0x0000ffff & (@aa >> 16))) ) & 0xffffffff
                                @mm[i] = y = (@mm[(x>>2)&255] + @aa + @bb ) & 0xffffffff
                                @randrsl[i] = @bb = (@mm[(y>>10)&255] + x ) & 0xffffffff
                                i += 1
                        end
                end