On 6/27/19 3:22 PM, Lucien Anti-Spam wrote: > Hi Laurent / Richard, > (resent email ) > > Does anyone have any knowledge why > gen_exception(s, s->base.pc_next, EXCP_RTE); > > is generated for "RTE" instruction, where as the "RTS" goes a gen_jmp? > ( note see target/m68k/translate.c in functions DISAS_INSN(rte) and > DISAS_INSN(rts)
History, it would seem. Paul Brook implemented it that way in 2007. I think that it should not be implemented as an exception. It should be a call to one of two different helpers (cf and m68k), followed by either a normal exit to main loop (to recognize the new interrupt state) or a debug exception. This sort of modification should be fairly easy to perform, if you have the time. r~
