[LinuxBIOS] do_ram_command

[Joseph Smith]

Quoting Corey Osgood <corey.osgood at gmail.com>:

> Peter Stuge wrote:
>> On Tue, Jun 19, 2007 at 12:34:51PM -0400, Corey Osgood wrote:
>>
>>> No. The binary and is kinda weird, if you have, say, 11100011 and
>>> 01010101, the binary and will give an answer of which bits are the
>>> same between the two,
>>>
>>
>> Not quite, that's XOR+NOT, exclusive or with inversion.
>>
>> The truth table for AND is:
>> a b y
>> 0 0 0
>> 0 1 0
>> 1 0 0
>> 1 1 1
>>
>> The result is 1 only when both input bits are 1. The result is 0
>> otherwise.
>>
>>
>>
>>> so 01000001.
>>>
>>
>> This is correct however.
>>
>>
>>   11100011
>> & 01010101
>>   --------
>>   01000001
>>
>> (use a fixed width font)
>>
>>
>> //Peter
>
> Thanks, that was a much better explanation than mine.
>
> -Corey
>
Thanks Peter and Corey, That makes perfect sense.

Thanks - Joe