diff --git a/kernel/arch/arm/cortex-m3/keil/los_exc.S b/kernel/arch/arm/cortex-m3/keil/los_exc.S
index 96f338db..b2f9d374 100644
--- a/kernel/arch/arm/cortex-m3/keil/los_exc.S
+++ b/kernel/arch/arm/cortex-m3/keil/los_exc.S
@@ -198,7 +198,7 @@ _hwiActiveCheck
     ADD   R2, R2, R12, LSL #5               ; calculate R2 (hwi number) as uwPid
 
 _ExcInMSP
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m33/gcc/NTZ/los_exc.S b/kernel/arch/arm/cortex-m33/gcc/NTZ/los_exc.S
index 5660c577..1cd6567f 100755
--- a/kernel/arch/arm/cortex-m33/gcc/NTZ/los_exc.S
+++ b/kernel/arch/arm/cortex-m33/gcc/NTZ/los_exc.S
@@ -276,7 +276,7 @@ _hwiActiveCheck:
 _ExcInMSP:
     .fnstart
     .cantunwind
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m33/gcc/TZ/non_secure/los_exc.S b/kernel/arch/arm/cortex-m33/gcc/TZ/non_secure/los_exc.S
index e95b12c5..2d4fcb11 100755
--- a/kernel/arch/arm/cortex-m33/gcc/TZ/non_secure/los_exc.S
+++ b/kernel/arch/arm/cortex-m33/gcc/TZ/non_secure/los_exc.S
@@ -260,7 +260,7 @@ _hwiActiveCheck:
 _ExcInMSP:
     .fnstart
     .cantunwind
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m33/gcc/los_exc.S b/kernel/arch/arm/cortex-m33/gcc/los_exc.S
index af0753ab..8d44b58a 100644
--- a/kernel/arch/arm/cortex-m33/gcc/los_exc.S
+++ b/kernel/arch/arm/cortex-m33/gcc/los_exc.S
@@ -276,7 +276,7 @@ _hwiActiveCheck:
 _ExcInMSP:
     .fnstart
     .cantunwind
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m33/iar/NTZ/los_exc.S b/kernel/arch/arm/cortex-m33/iar/NTZ/los_exc.S
index 15051af2..4b560685 100644
--- a/kernel/arch/arm/cortex-m33/iar/NTZ/los_exc.S
+++ b/kernel/arch/arm/cortex-m33/iar/NTZ/los_exc.S
@@ -198,7 +198,7 @@ _hwiActiveCheck
     ADD   R2, R2, R12, LSL #5               ; calculate R2 (hwi number) as uwPid
 
 _ExcInMSP
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m33/iar/TZ/non_secure/los_exc.S b/kernel/arch/arm/cortex-m33/iar/TZ/non_secure/los_exc.S
index d954304d..604d7310 100644
--- a/kernel/arch/arm/cortex-m33/iar/TZ/non_secure/los_exc.S
+++ b/kernel/arch/arm/cortex-m33/iar/TZ/non_secure/los_exc.S
@@ -187,7 +187,7 @@ _hwiActiveCheck
     ADD   R2, R2, R12, LSL #5               ; calculate R2 (hwi number) as uwPid
 
 _ExcInMSP
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m4/gcc/los_exc.S b/kernel/arch/arm/cortex-m4/gcc/los_exc.S
index b2106500..934ce47f 100644
--- a/kernel/arch/arm/cortex-m4/gcc/los_exc.S
+++ b/kernel/arch/arm/cortex-m4/gcc/los_exc.S
@@ -275,7 +275,7 @@ _hwiActiveCheck:
 _ExcInMSP:
     .fnstart
     .cantunwind
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m4/iar/los_exc.S b/kernel/arch/arm/cortex-m4/iar/los_exc.S
index 7c26aba9..cbc6c22f 100644
--- a/kernel/arch/arm/cortex-m4/iar/los_exc.S
+++ b/kernel/arch/arm/cortex-m4/iar/los_exc.S
@@ -198,7 +198,7 @@ _hwiActiveCheck
     ADD   R2, R2, R12, LSL #5               ; calculate R2 (hwi number) as uwPid
 
 _ExcInMSP
-    CMP   LR, #0xFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m7/gcc/los_exc.S b/kernel/arch/arm/cortex-m7/gcc/los_exc.S
index bef3bc89..dc2de049 100644
--- a/kernel/arch/arm/cortex-m7/gcc/los_exc.S
+++ b/kernel/arch/arm/cortex-m7/gcc/los_exc.S
@@ -276,7 +276,7 @@ _hwiActiveCheck:
 _ExcInMSP:
     .fnstart
     .cantunwind
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}
diff --git a/kernel/arch/arm/cortex-m7/iar/los_exc.S b/kernel/arch/arm/cortex-m7/iar/los_exc.S
index f1efbf3c..ee118607 100644
--- a/kernel/arch/arm/cortex-m7/iar/los_exc.S
+++ b/kernel/arch/arm/cortex-m7/iar/los_exc.S
@@ -198,7 +198,7 @@ _hwiActiveCheck
     ADD   R2, R2, R12, LSL #5               ; calculate R2 (hwi number) as uwPid
 
 _ExcInMSP
-    CMP   LR, #0XFFFFFFED
+    CMP   LR, #0xFFFFFFE9
     BNE   _NoFloatInMsp
     ADD   R3, R13, #104
     PUSH  {R3}