V850E2 version based on User’s Manual: V850E2M Architecture (link)
V850E3 version based on gcc objdump
and gdb
sources,
CubeSuite IDE manual
and RH850G3KH User’s Manual: Software link (R01US0165EJ0120)
compile SLEIGH with
$(GHIDRA_HOME)\support\sleigh.bat data\languages\[v850e2 v850e3].slaspec
copy files to
$(GHIDRA_HOME)\Ghidra\Extensions\