ST0_KX_IF_64
val = ST0_CU1 | ST0_CU0 | ST0_BEV | ST0_KX_IF_64;
UASM_i_LA(&p, GPR_K0, ST0_EXL | KSU_USER | ST0_BEV | ST0_KX_IF_64);
uasm_i_addiu(&p, GPR_K0, GPR_ZERO, ST0_EXL | KSU_USER | ST0_IE | ST0_KX_IF_64);