Re: Apple IIe power up issues

["Bill Garber" <willy46pa@garberstreet.com>]

"Steve Nickolas" <lyricalnanoha@dosius.ath.cx> wrote in message lyricalnanoha-1281307177@macgui.com">news:lyricalnanoha-1281307177@macgui.com...
> keithclark wrote:
> > I just had a couple of Apple IIe's given to me.  They are not in the best
> > of 
> > shape, but they are something that I've always wanted but could never
> > afford 
> > in their day!
> >
> > One of them boots up with no issues but shows fre(0) at -18436.  I'm not
> > sure 
> > how to interpret that number!
>
> Signed 16-bit integer.  "? 65536-18436" (47100).  2049 (beginning of BASIC
> code space) + 47100 = 49149, which is 3 bytes shy of 48K - which is exactly
> what it should return if nothing is in RAM.

To be precise, it's 2 bytes shy of 48K, the end of 48K being $BFFF or 49151. 

Also, the last 2 bytes, $BFFE/BFFF contains some kind of location, HIMEM??? 

Don't forget that the first byte of ram is always $0000, not $0001.  8^) 

Bill