Ralf Baechle (ralf@xxxxxxxxxxxxxx) writes: > > And doesn't 64 bit mode have costs of its own (doubled i-fetch bandwidth > > for starters)? 64-bit MIPS CPUs still have 32-bit instructions... it's the registers and addressing range which grow, not the instructions. Program data segments tend to grow when you use 64-bit pointers (N64 does, but N32 - paradoxically still a 64-bit ABI - doesn't) -- Dominic Sweetman MIPS Technologies