==== Z80: ED B9 cpd(r) / ED B1 cpi(r) ====
<s>Problem here : CPDR and CPIR has same implementation than ED A9 CPD and ED A1 CPI.</s>
Solved by Sorgelig (does not pass plustest.dsk testbench 5 in r005.8.16.2 but does pass it on Sorgelig MiSTer fork version)