diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c
index 0d01ac3de0..db9e994c8c 100644
--- a/target/ppc/dfp_helper.c
+++ b/target/ppc/dfp_helper.c
@@ -1391,3 +1391,42 @@ DFP_HELPER_SHIFT(DSCLI, 64, 1)
 DFP_HELPER_SHIFT(DSCLIQ, 128, 1)
 DFP_HELPER_SHIFT(DSCRI, 64, 0)
 DFP_HELPER_SHIFT(DSCRIQ, 128, 0)
+
+target_ulong helper_CBCDTD(target_ulong s)
+{
+    uint64_t res = 0;
+    uint32_t dec32;
+    uint8_t bcd[6];
+    int w, i, offs;
+    decNumber a;
+    decContext context;
+
+    decContextDefault(&context, DEC_INIT_DECIMAL32);
+
+    for (w = 1; w >= 0; w--) {
+        res <<= 32;
+        decNumberZero(&a);
+        /* Extract each BCD field of word "w" */
+        for (i = 5; i >= 0; i--) {
+            offs = 4 * (5 - i) + 32 * w;
+            bcd[i] = extract64(s, offs, 4);
+            if (bcd[i] > 9) {
+                /*
+                 * If the field value is greater than 9, the results are
+                 * undefined. We could use a fixed value like 0 or 9, but
+                 * an and with 9 seems to better match the hardware behavior.
+                 */
+                bcd[i] &= 9;
+            }
+        }
+
+        /* Create a decNumber with the BCD values and convert to decimal32 */
+        decNumberSetBCD(&a, bcd, 6);
+        decimal32FromNumber((decimal32 *)&dec32, &a, &context);
+
+        /* Extract the two declets from the decimal32 value */
+        res |= dec32 & 0xfffff;
+    }
+
+    return res;
+}
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 84a41d85b0..583c8dd0c2 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -54,6 +54,7 @@ DEF_HELPER_3(sraw, tl, env, tl, tl)
 DEF_HELPER_FLAGS_2(CFUGED, TCG_CALL_NO_RWG_SE, i64, i64, i64)
 DEF_HELPER_FLAGS_2(PDEPD, TCG_CALL_NO_RWG_SE, i64, i64, i64)
 DEF_HELPER_FLAGS_2(PEXTD, TCG_CALL_NO_RWG_SE, i64, i64, i64)
+DEF_HELPER_FLAGS_1(CBCDTD, TCG_CALL_NO_RWG_SE, tl, tl)
 #if defined(TARGET_PPC64)
 DEF_HELPER_FLAGS_2(cmpeqb, TCG_CALL_NO_RWG_SE, i32, tl, tl)
 DEF_HELPER_FLAGS_1(popcntw, TCG_CALL_NO_RWG_SE, tl, tl)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index af8ba9ca9b..65bcaf657f 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -87,6 +87,9 @@
 &X_rc           rt ra rb rc:bool
 @X_rc           ...... rt:5 ra:5 rb:5 .......... rc:1           &X_rc
 
+&X_sa           rs ra
+@X_sa           ...... rs:5 ra:5 ..... .......... .             &X_sa
+
 %x_frtp         22:4 !function=times_2
 %x_frap         17:4 !function=times_2
 %x_frbp         12:4 !function=times_2
@@ -314,6 +317,7 @@ PEXTD           011111 ..... ..... ..... 0010111100 -   @X
 ## BCD Assist
 
 ADDG6S          011111 ..... ..... ..... - 001001010 -  @X
+CBCDTD          011111 ..... ..... ----- 0100111010 -   @X_sa
 
 ### Float-Point Load Instructions
 
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc
index 490e49cfc7..892c9d2568 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -529,3 +529,10 @@ static bool trans_ADDG6S(DisasContext *ctx, arg_X *a)
 
     return true;
 }
+
+static bool trans_CBCDTD(DisasContext *ctx, arg_X_sa *a)
+{
+    REQUIRE_INSNS_FLAGS2(ctx, BCDA_ISA206);
+    gen_helper_CBCDTD(cpu_gpr[a->ra], cpu_gpr[a->rs]);
+    return true;
+}