Re: Strange PET 4032 RAM

From: Bill Degnan <*billdeg_at_degnanco.com*> Date: Tue, 17 Aug 2010 13:24:56 -0400 Message-ID: <bc481d7$3ff4cebf$1da40f85$@com> · billdeg_at_degnanco.com

Thanks.  I am not interested in buying this, but I was curious.

Bill Degnan

-------- Original Message --------
> From: "Dave Mercado" <dmercado11@att.net>
> Sent: Tuesday, August 17, 2010 1:08 PM
> To: cbm-hackers@musoftware.de
> Subject: Re: Strange PET 4032 RAM
> 
> Bill,
> This implies that one of the 16Kx1 RAM chips in low memory is bad. The
> power-on memory test quits testing when it finds a bad location. I'm 
> guessing the routine that
> calculates free memory by subtracting 0401H (start of test) from the 
present 
> bad address and
> converts to decimal is probably also using bad RAM locations on zero 
page.
> 
> The price seems high for a computer with a problem.
> -Dave
> 
> ----- Original Message ----- 
> From: "Bill Degnan" <billdeg@degnanco.com>
> To: <cbm-hackers@musoftware.de>
> Sent: Tuesday, August 17, 2010 9:13 AM
> Subject: Strange PET 4032 RAM
> 
> 
> > Strange PET 4032 RAM
> >
> > It looks like this computer, on Ebay, is reporting 21.3230456 bytes 
free.
> 
> 
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