MIPS_CPU_NAN_2008
#define cpu_has_nan_2008 __isa_ge_or_opt(6, MIPS_CPU_NAN_2008)
c->options |= MIPS_CPU_NAN_2008;
c->options &= ~(MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY);
c->options |= MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY;
c->options |= MIPS_CPU_NAN_2008;
c->options |= MIPS_CPU_NAN_2008 | MIPS_CPU_NAN_LEGACY;
if (c->options & MIPS_CPU_NAN_2008)