- enable KX on entry from user-space, we need KX set to save to XKSEG addresses. - add MIPS_XKSEG_START to genassym.c - Add n64 case for swth.S
- enable KX on entry from user-space, we need KX set to save to XKSEG addresses. - add MIPS_XKSEG_START to genassym.c - Add n64 case for swth.S