IS_BE
i = IS_BE ? sizeof(unsigned long) - nb : 0;
i = IS_BE ? sizeof(unsigned long) - nb : 0;
err = read_mem(®s->gpr[reg + IS_BE], ea + 8, 8, regs);
err = write_mem(vals[IS_BE], ea + 8, 8, regs);
reg->d[IS_BE] = !rev ? v : byterev_8(v);
reg->d[IS_BE] = reg->d[IS_LE];
memcpy(mem + 8, ®->d[IS_BE], 8);