diff --git a/qemu/target/m68k/fpu_helper.c b/qemu/target/m68k/fpu_helper.c
index f8030edd..60da343f 100644
--- a/qemu/target/m68k/fpu_helper.c
+++ b/qemu/target/m68k/fpu_helper.c
@@ -652,6 +652,11 @@ void HELPER(fatanh)(CPUM68KState *env, FPReg *res, FPReg *val)
     res->d = floatx80_atanh(val->d, &env->fp_status);
 }
 
+void HELPER(fetoxm1)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+    res->d = floatx80_etoxm1(val->d, &env->fp_status);
+}
+
 void HELPER(ftanh)(CPUM68KState *env, FPReg *res, FPReg *val)
 {
     res->d = floatx80_tanh(val->d, &env->fp_status);
diff --git a/qemu/target/m68k/helper.h b/qemu/target/m68k/helper.h
index 26f97f58..1d76a136 100644
--- a/qemu/target/m68k/helper.h
+++ b/qemu/target/m68k/helper.h
@@ -85,6 +85,7 @@ DEF_HELPER_3(fatan, void, env, fp, fp)
 DEF_HELPER_3(fasin, void, env, fp, fp)
 DEF_HELPER_3(facos, void, env, fp, fp)
 DEF_HELPER_3(fatanh, void, env, fp, fp)
+DEF_HELPER_3(fetoxm1, void, env, fp, fp)
 DEF_HELPER_3(ftanh, void, env, fp, fp)
 DEF_HELPER_3(fsinh, void, env, fp, fp)
 DEF_HELPER_3(fcosh, void, env, fp, fp)
diff --git a/qemu/target/m68k/translate.c b/qemu/target/m68k/translate.c
index 5578bc1d..54af719f 100644
--- a/qemu/target/m68k/translate.c
+++ b/qemu/target/m68k/translate.c
@@ -5371,6 +5371,9 @@ DISAS_INSN(fpu)
     case 0x06: /* flognp1 */
         gen_helper_flognp1(tcg_ctx, tcg_ctx->cpu_env, cpu_dest, cpu_src);
         break;
+    case 0x08: /* fetoxm1 */
+        gen_helper_fetoxm1(tcg_ctx, tcg_ctx->cpu_env, cpu_dest, cpu_src);
+        break;
     case 0x09: /* ftanh */
         gen_helper_ftanh(tcg_ctx, tcg_ctx->cpu_env, cpu_dest, cpu_src);
         break;