MIPS_CPU_ISA_IV
# define cpu_has_mips_4 __isa_lt_and_flag(6, MIPS_CPU_ISA_IV)
#define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
set_isa(c, MIPS_CPU_ISA_IV);
case MIPS_CPU_ISA_IV:
c->isa_level |= MIPS_CPU_ISA_IV;
if (current_cpu_data.isa_level & MIPS_CPU_ISA_IV)