diff --git a/kernel/arch/arm/cortex-m3/keil/los_exc.S b/kernel/arch/arm/cortex-m3/keil/los_exc.S
index 96f338dbd2aa307961ea1682bdbbc7dad73efea6..b2f9d374ed0e0e08f85c9172295eb8752d51ad5a 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 5660c577fe57d970ce703d987ca084d360bf538f..1cd6567f167e8b32d4b154b627ef3000fde02726 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 e95b12c59111b8e79752876e990608030e53ece8..2d4fcb11f0528939ac95aca7664818721da992bd 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 af0753ab13062bb794a54f938c2ddf0f0d45bead..8d44b58aa0a680da7128fc3a131b1021336e7d36 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 15051af25ac9d987d5d4dddcfcbc52a38defc94d..4b560685f3a83f8a7fa178713615a177b2cb2dad 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 d954304dec87760ea9cc9aaeae69210091d668ca..604d7310732d73ea9a0f3f907fe7c7c5bfd2791a 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 b21065007d0a70da82d6387e311b81f610aa3476..934ce47f8ac5a7af7f49518cc7123e74b5d4b3ab 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 7c26aba92d72f4986d11e922147f7d21b657750c..cbc6c22f9c7e994d8b82b9f09541547ca74a9586 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 bef3bc8936a5577cd1699a78051a5712f031f0e0..dc2de049414f3c1dcf8a0f2b772ffae9ffd33845 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 f1efbf3cd92e3d67db9ec3aa37a221b8ce9313bb..ee11860728f70f41fadf62a1d02305bd7e1d0fd9 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}