how do I specify in C that xdata access is to use EMI0CN instead of P2 for high byte of address xdata access
in which case it should be invisible to 'C' (or even assembler?). sure, except paging @ri - ..... naah, you just have to remember.
yes, you are right, what blew me was the SDCC _XPAGE (I'm doing a Keil/SDCC document)