RET cc=true - Cycle Duration

[fpiribauer]

The M-cycle duration for conditional RET cc=true is listed as "4". I'm not sure if this is correct. PanDocs and the gblargg instr_timing test think that "5" is the correct answer.

[Gekkio]

Thanks, good catch! I've clearly gotten the data of RET and RET cc mixed somewhere 🤔
I'll rerun the CPU core simulations and fix the info for that instruction