One day I will have a Komondors!?@ 4.0 ladic
Address lines are
CPU :
a0-a12 high
A13 low pulse
A14-a15 high
D7-d5 high
D4 low pulse
D3 low pulse
D2 high
D1 - d0 low pulse
R/w high
In - low pulse
S.o - low pulse
Out- low pulse
Res - high
Apparently my devibe is not present , pins grounded for diagnostic
Your PET is stuck cycling between $FFFB and $FFFF,
all address look good to me.
cpu -
A0-A11 look same from cpu to sockets
d7-high
d6-high
d5-high
d4-low
d3-high
d2-low
d1-high
d0-low
rom sockets say
d7-high/low pulse
d6-high/low fast pulse
d5-high/low fast pulse
d4-high/low fast pulse
d3-high/low fast pulse
d2-high/low fast pulse
d1-high/low fast pulse
d0-high/low fast pulse
anyway all D0-7 buzz out to the rom sockets with no shorts , so they must be correct.