diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index b985e9e55b..9ca78ee156 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3462,10 +3462,12 @@ static void gen_std(DisasContext *ctx)
             if (HAVE_ATOMIC128) {
                 TCGv_i32 oi = tcg_temp_new_i32();
                 if (ctx->le_mode) {
-                    tcg_gen_movi_i32(oi, make_memop_idx(MO_LEQ, ctx->mem_idx));
+                    tcg_gen_movi_i32(oi, make_memop_idx(MO_LE | MO_128,
+                                                        ctx->mem_idx));
                     gen_helper_stq_le_parallel(cpu_env, EA, lo, hi, oi);
                 } else {
-                    tcg_gen_movi_i32(oi, make_memop_idx(MO_BEQ, ctx->mem_idx));
+                    tcg_gen_movi_i32(oi, make_memop_idx(MO_BE | MO_128,
+                                                        ctx->mem_idx));
                     gen_helper_stq_be_parallel(cpu_env, EA, lo, hi, oi);
                 }
                 tcg_temp_free_i32(oi);
@@ -4067,11 +4069,11 @@ static void gen_lqarx(DisasContext *ctx)
         if (HAVE_ATOMIC128) {
             TCGv_i32 oi = tcg_temp_new_i32();
             if (ctx->le_mode) {
-                tcg_gen_movi_i32(oi, make_memop_idx(MO_LEQ | MO_ALIGN_16,
+                tcg_gen_movi_i32(oi, make_memop_idx(MO_LE | MO_128 | MO_ALIGN,
                                                     ctx->mem_idx));
                 gen_helper_lq_le_parallel(lo, cpu_env, EA, oi);
             } else {
-                tcg_gen_movi_i32(oi, make_memop_idx(MO_BEQ | MO_ALIGN_16,
+                tcg_gen_movi_i32(oi, make_memop_idx(MO_BE | MO_128 | MO_ALIGN,
                                                     ctx->mem_idx));
                 gen_helper_lq_be_parallel(lo, cpu_env, EA, oi);
             }
@@ -4122,7 +4124,7 @@ static void gen_stqcx_(DisasContext *ctx)
 
     if (tb_cflags(ctx->base.tb) & CF_PARALLEL) {
         if (HAVE_CMPXCHG128) {
-            TCGv_i32 oi = tcg_const_i32(DEF_MEMOP(MO_Q) | MO_ALIGN_16);
+            TCGv_i32 oi = tcg_const_i32(DEF_MEMOP(MO_128) | MO_ALIGN);
             if (ctx->le_mode) {
                 gen_helper_stqcx_le_parallel(cpu_crf[0], cpu_env,
                                              EA, lo, hi, oi);