When it boots it calls itself a 63.5K CP/M and I have the internal RAM drive set to 0K.
When I look at address 6 and 7 they contain 00 DA which I take as 0xDA00 which is 55808 or 54.5K, not 63.5K.
If I increase the ram drive by 9K, it will decrease this value appropriately.
I am thinking perhaps it really only has 54.5K TPA.
But... the manual here shows something different:
http://www.vintagecomputer.net/fjkraan/comp/px8/doc/osrm01-03.pdf
Page 3-3 ( 38 ) shows a 100h BDOS and a 100h BIOS plus some unspecified work area, but essentially it has bank switching and then calls BDOS/BIOS from ROM. If they are 512 bytes, then the 63.5K would make sense, but why is the FBASE showing 0xDA00.
When I look at address 6 and 7 they contain 00 DA which I take as 0xDA00 which is 55808 or 54.5K, not 63.5K.
If I increase the ram drive by 9K, it will decrease this value appropriately.
I am thinking perhaps it really only has 54.5K TPA.
But... the manual here shows something different:
http://www.vintagecomputer.net/fjkraan/comp/px8/doc/osrm01-03.pdf
Page 3-3 ( 38 ) shows a 100h BDOS and a 100h BIOS plus some unspecified work area, but essentially it has bank switching and then calls BDOS/BIOS from ROM. If they are 512 bytes, then the 63.5K would make sense, but why is the FBASE showing 0xDA00.