IBM 5150 maximum memory?

[Michael B. Brutman]

Tony Duell wrote:
>>
>> I'm kind of surprised that this hasn't come up yet.
>>
>> The original BIOS and the 2nd revision BIOS (Oct 1981) both had a cute 
>> little bug in them where they would only count up to 544K of installed 
>> memory.  You might have 640K and have all of the switches set correctly, 
>> but the BIOS bug caused the count to stop at 544KB.
> 
> What is the casue of this bug? 
> 
> -tony
> 
> 

I'm confused.  It's a bug!


Mike