diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 8ecfdb302a..d6405ad241 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -375,7 +375,8 @@ typedef struct mips_def_t mips_def_t;
 #define CP0_REG16__CONFIG3         3
 #define CP0_REG16__CONFIG4         4
 #define CP0_REG16__CONFIG5         5
-#define CP0_REG00__CONFIG7         7
+#define CP0_REG16__CONFIG6         6
+#define CP0_REG16__CONFIG7         7
 /* CP0 Register 17 */
 #define CP0_REG17__LLADDR          0
 #define CP0_REG17__MAAR            1
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 238066fe93..48086409f1 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -7246,36 +7246,36 @@ static void gen_mfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_16:
         switch (sel) {
-        case 0:
+        case CP0_REG16__CONFIG:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config0));
             register_name = "Config";
             break;
-        case 1:
+        case CP0_REG16__CONFIG1:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config1));
             register_name = "Config1";
             break;
-        case 2:
+        case CP0_REG16__CONFIG2:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config2));
             register_name = "Config2";
             break;
-        case 3:
+        case CP0_REG16__CONFIG3:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config3));
             register_name = "Config3";
             break;
-        case 4:
+        case CP0_REG16__CONFIG4:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config4));
             register_name = "Config4";
             break;
-        case 5:
+        case CP0_REG16__CONFIG5:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config5));
             register_name = "Config5";
             break;
         /* 6,7 are implementation dependent */
-        case 6:
+        case CP0_REG16__CONFIG6:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config6));
             register_name = "Config6";
             break;
-        case 7:
+        case CP0_REG16__CONFIG7:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config7));
             register_name = "Config7";
             break;
@@ -7971,45 +7971,45 @@ static void gen_mtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_16:
         switch (sel) {
-        case 0:
+        case CP0_REG16__CONFIG:
             gen_helper_mtc0_config0(cpu_env, arg);
             register_name = "Config";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 1:
+        case CP0_REG16__CONFIG1:
             /* ignored, read only */
             register_name = "Config1";
             break;
-        case 2:
+        case CP0_REG16__CONFIG2:
             gen_helper_mtc0_config2(cpu_env, arg);
             register_name = "Config2";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 3:
+        case CP0_REG16__CONFIG3:
             gen_helper_mtc0_config3(cpu_env, arg);
             register_name = "Config3";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 4:
+        case CP0_REG16__CONFIG4:
             gen_helper_mtc0_config4(cpu_env, arg);
             register_name = "Config4";
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 5:
+        case CP0_REG16__CONFIG5:
             gen_helper_mtc0_config5(cpu_env, arg);
             register_name = "Config5";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
         /* 6,7 are implementation dependent */
-        case 6:
+        case CP0_REG16__CONFIG6:
             /* ignored */
             register_name = "Config6";
             break;
-        case 7:
+        case CP0_REG16__CONFIG7:
             /* ignored */
             register_name = "Config7";
             break;
@@ -8718,36 +8718,36 @@ static void gen_dmfc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_16:
         switch (sel) {
-        case 0:
+        case CP0_REG16__CONFIG:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config0));
             register_name = "Config";
             break;
-        case 1:
+        case CP0_REG16__CONFIG1:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config1));
             register_name = "Config1";
             break;
-        case 2:
+        case CP0_REG16__CONFIG2:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config2));
             register_name = "Config2";
             break;
-        case 3:
+        case CP0_REG16__CONFIG3:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config3));
             register_name = "Config3";
             break;
-        case 4:
+        case CP0_REG16__CONFIG4:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config4));
             register_name = "Config4";
             break;
-        case 5:
+        case CP0_REG16__CONFIG5:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config5));
             register_name = "Config5";
             break;
        /* 6,7 are implementation dependent */
-        case 6:
+        case CP0_REG16__CONFIG6:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config6));
             register_name = "Config6";
             break;
-        case 7:
+        case CP0_REG16__CONFIG7:
             gen_mfc0_load32(arg, offsetof(CPUMIPSState, CP0_Config7));
             register_name = "Config7";
             break;
@@ -9434,33 +9434,33 @@ static void gen_dmtc0(DisasContext *ctx, TCGv arg, int reg, int sel)
         break;
     case CP0_REGISTER_16:
         switch (sel) {
-        case 0:
+        case CP0_REG16__CONFIG:
             gen_helper_mtc0_config0(cpu_env, arg);
             register_name = "Config";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 1:
+        case CP0_REG16__CONFIG1:
             /* ignored, read only */
             register_name = "Config1";
             break;
-        case 2:
+        case CP0_REG16__CONFIG2:
             gen_helper_mtc0_config2(cpu_env, arg);
             register_name = "Config2";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 3:
+        case CP0_REG16__CONFIG3:
             gen_helper_mtc0_config3(cpu_env, arg);
             register_name = "Config3";
             /* Stop translation as we may have switched the execution mode */
             ctx->base.is_jmp = DISAS_STOP;
             break;
-        case 4:
+        case CP0_REG16__CONFIG4:
             /* currently ignored */
             register_name = "Config4";
             break;
-        case 5:
+        case CP0_REG16__CONFIG5:
             gen_helper_mtc0_config5(cpu_env, arg);
             register_name = "Config5";
             /* Stop translation as we may have switched the execution mode */