26 May
2007
26 May
'07
11:30 p.m.
However, a little investigating quickly showed that
even the most
basic ten-word TTY check program would not deposit or run. In
fact, when depositing or examining sequential locations I found
the address display would increment from 0200 to 0001. 0577 would
increment to 0400, etc. So something is wrong with address bit 4.
I pulled all the boards from the backplane except the CPU set and
it still does it. Now I've got to fix the hardware! Sigh.
I am wondering if this has anyhting to do with the 'address in current
page / address in zero page' logic.
Remind me as to which CPU you have.
-tony