Fixed bug #711.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8952 35acf78f-673a-0410-8e92-d51de3d6d3f4

9 files changed, 238 insertions, 124 deletions

diff --git a/os/hal/ports/STM32/STM32F0xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32F0xx/ext_lld_isr.c
index 15295cbbe..3b9dfbc13 100644
--- a/os/hal/ports/STM32/STM32F0xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F0xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector54) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & ((1U << 0) | (1U << 1));

+  pr = EXTI->PR;

+  pr &= ((1U << 0) | (1U << 1));

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -78,7 +79,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & ((1U << 2) | (1U << 3));

+  pr = EXTI->PR;

+  pr &= ((1U << 2) | (1U << 3));

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -98,9 +100,10 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & ((1U << 4)  | (1U << 5)  | (1U << 6)  | (1U << 7)  | (1U << 8)  |

-                   (1U << 9)  | (1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                   (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= ((1U << 4)  | (1U << 5)  | (1U << 6)  | (1U << 7)  | (1U << 8)  |

+         (1U << 9)  | (1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+         (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -137,11 +140,15 @@ OSAL_IRQ_HANDLER(Vector5C) {
  * @isr

  */

 OSAL_IRQ_HANDLER(Vector44) {

+  uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

 

-  EXTI->PR = (1U << 16);

-  EXTD1.config->channels[16].cb(&EXTD1, 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

+  EXTI->PR = pr;

+  if (pr & (1U << 16))

+    EXTD1.config->channels[16].cb(&EXTD1, 16);

 

   OSAL_IRQ_EPILOGUE();

 }

@@ -158,7 +165,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 17) | (1U << 19) | (1U << 20));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 17) | (1U << 19) | (1U << 20));

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -190,7 +198,8 @@ OSAL_IRQ_HANDLER(Vector70) {
   {

     uint32_t pr;

 

-    pr = EXTI->PR & EXTI->IMR & ((1U << 21) | (1U << 22));

+    pr = EXTI->PR;

+    pr &= EXTI->IMR & ((1U << 21) | (1U << 22));

     EXTI->PR = pr;

     if (pr & (1U << 21))

       EXTD1.config->channels[21].cb(&EXTD1, 21);

diff --git a/os/hal/ports/STM32/STM32F1xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32F1xx/ext_lld_isr.c
index 5319b9f2c..59bda0f9c 100644
--- a/os/hal/ports/STM32/STM32F1xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F1xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -76,7 +77,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -94,7 +96,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -112,7 +115,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -130,7 +134,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -148,7 +153,8 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) | (1U << 9));

+  pr = EXTI->PR;

+  pr &= ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) | (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -174,8 +180,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) | (1U << 14) |

-                   (1U << 15));

+  pr = EXTI->PR;

+  pr &= ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) | (1U << 14) |

+         (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -203,7 +210,8 @@ OSAL_IRQ_HANDLER(Veector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -221,7 +229,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -240,7 +249,8 @@ OSAL_IRQ_HANDLER(VectorE8) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -258,7 +268,8 @@ OSAL_IRQ_HANDLER(Vector138) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -278,7 +289,8 @@ OSAL_IRQ_HANDLER(VectorE8) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

diff --git a/os/hal/ports/STM32/STM32F37x/ext_lld_isr.c b/os/hal/ports/STM32/STM32F37x/ext_lld_isr.c
index df8ef9e4f..c4846abdf 100644
--- a/os/hal/ports/STM32/STM32F37x/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F37x/ext_lld_isr.c
@@ -59,7 +59,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -79,7 +80,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -99,7 +101,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -119,7 +122,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -139,7 +143,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -159,8 +164,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                     (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -188,8 +194,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                     (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -219,7 +226,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -239,7 +247,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -259,7 +268,8 @@ OSAL_IRQ_HANDLER(Vector170) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -279,7 +289,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -299,7 +310,8 @@ OSAL_IRQ_HANDLER(Vector4C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 20);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 20);

   EXTI->PR = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -319,7 +331,8 @@ OSAL_IRQ_HANDLER(Vector140) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 21) | (1U << 22));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 21) | (1U << 22));

   EXTI->PR = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);

diff --git a/os/hal/ports/STM32/STM32F3xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32F3xx/ext_lld_isr.c
index 47b717b79..ee6f71b71 100644
--- a/os/hal/ports/STM32/STM32F3xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F3xx/ext_lld_isr.c
@@ -59,7 +59,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -79,7 +80,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -99,7 +101,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -119,7 +122,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -139,7 +143,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -159,8 +164,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                     (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -188,8 +194,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                     (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -219,7 +226,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -239,7 +247,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -259,7 +268,8 @@ OSAL_IRQ_HANDLER(VectorE8) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -279,7 +289,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -299,7 +310,8 @@ OSAL_IRQ_HANDLER(Vector4C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 20);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 20);

   EXTI->PR = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -319,7 +331,8 @@ OSAL_IRQ_HANDLER(Vector140) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 21) | (1U << 22) | (1U << 29));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 21) | (1U << 22) | (1U << 29));

   EXTI->PR = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);

@@ -343,7 +356,8 @@ OSAL_IRQ_HANDLER(Vector144) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 30) | (1U << 31));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 30) | (1U << 31));

   EXTI->PR = pr;

   if (pr & (1U << 30))

     EXTD1.config->channels[30].cb(&EXTD1, 30);

@@ -370,7 +384,8 @@ OSAL_IRQ_HANDLER(Vector148) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr2 = EXTI->PR2 & EXTI->IMR & (1U << 1);

+  pr2 = EXTI->PR2;

+  pr2 = EXTI->IMR & (1U << 1);

   EXTI->PR2 = pr2;

   if (pr2 & (1U << 1))

     EXTD1.config->channels[33].cb(&EXTD1, 33);

diff --git a/os/hal/ports/STM32/STM32F4xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32F4xx/ext_lld_isr.c
index 7fb4d76ce..475d85c3c 100644
--- a/os/hal/ports/STM32/STM32F4xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F4xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -76,7 +77,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -94,7 +96,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -112,7 +115,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -130,7 +134,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -148,8 +153,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                     (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -175,8 +181,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                     (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -204,7 +211,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr = EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -222,7 +230,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+  pr = EXTI->PR;

+  pr = EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -240,7 +249,8 @@ OSAL_IRQ_HANDLER(VectorE8) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -259,7 +269,8 @@ OSAL_IRQ_HANDLER(Vector138) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -279,7 +290,8 @@ OSAL_IRQ_HANDLER(Vector170) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 20);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 20);

   EXTI->PR = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -299,7 +311,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 21);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 21);

   EXTI->PR = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);

@@ -318,7 +331,8 @@ OSAL_IRQ_HANDLER(Vector4C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 22);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 22);

   EXTI->PR = pr;

   if (pr & (1U << 22))

     EXTD1.config->channels[22].cb(&EXTD1, 22);

diff --git a/os/hal/ports/STM32/STM32F7xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32F7xx/ext_lld_isr.c
index cf4ae009a..98ff53f03 100644
--- a/os/hal/ports/STM32/STM32F7xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32F7xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -76,7 +77,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -94,7 +96,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -112,7 +115,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -130,7 +134,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -148,8 +153,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                     (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -175,8 +181,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                     (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -204,7 +211,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -222,7 +230,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -240,7 +249,8 @@ OSAL_IRQ_HANDLER(VectorE8) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -258,7 +268,8 @@ OSAL_IRQ_HANDLER(Vector138) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -276,7 +287,8 @@ OSAL_IRQ_HANDLER(Vector170) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 20);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 20);

   EXTI->PR = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -294,7 +306,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 21);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 21);

   EXTI->PR = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);

@@ -312,7 +325,8 @@ OSAL_IRQ_HANDLER(Vector4C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 22);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 22);

   EXTI->PR = pr;

   if (pr & (1U << 22))

     EXTD1.config->channels[22].cb(&EXTD1, 22);

diff --git a/os/hal/ports/STM32/STM32L0xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32L0xx/ext_lld_isr.c
index 9818ea0fd..8db3f763b 100644
--- a/os/hal/ports/STM32/STM32L0xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32L0xx/ext_lld_isr.c
@@ -59,7 +59,8 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE01_HANDLER) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 0) | (1U << 1));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 0) | (1U << 1));

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -81,7 +82,8 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE23_HANDLER) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 2) | (1U << 3));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 2) | (1U << 3));

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -103,9 +105,10 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE4_15_HANDLER) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 4)  | (1U << 5)  | (1U << 6)  | (1U << 7)  |

-                               (1U << 8)  | (1U << 9)  | (1U << 10) | (1U << 11) |

-                               (1U << 12) | (1U << 13) | (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 4)  | (1U << 5)  | (1U << 6)  | (1U << 7)  |

+                     (1U << 8)  | (1U << 9)  | (1U << 10) | (1U << 11) |

+                     (1U << 12) | (1U << 13) | (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -147,7 +150,8 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE16_HANDLER) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -167,7 +171,8 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE171920_HANDLER) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 17) | (1U << 19) | (1U << 20));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 17) | (1U << 19) | (1U << 20));

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -198,7 +203,8 @@ OSAL_IRQ_HANDLER(STM32_EXTI_LINE2122_HANDLER) {
   {

     uint32_t pr;

 

-    pr = EXTI->PR & EXTI->IMR & ((1U << 21) | (1U << 22));

+    pr = EXTI->PR;

+    pr &= EXTI->IMR & ((1U << 21) | (1U << 22));

     EXTI->PR = pr;

     if (pr & (1U << 21))

       EXTD1.config->channels[21].cb(&EXTD1, 21);

diff --git a/os/hal/ports/STM32/STM32L1xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32L1xx/ext_lld_isr.c
index f457bacfd..fcf7959e2 100644
--- a/os/hal/ports/STM32/STM32L1xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32L1xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 0);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 0);

   EXTI->PR = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -76,7 +77,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 1);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 1);

   EXTI->PR = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -94,7 +96,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 2);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 2);

   EXTI->PR = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -112,7 +115,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 3);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 3);

   EXTI->PR = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -130,7 +134,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 4);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 4);

   EXTI->PR = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -148,8 +153,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                     (1U << 9));

   EXTI->PR = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -175,8 +181,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                     (1U << 14) | (1U << 15));

   EXTI->PR = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -204,7 +211,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & (1U << 16);

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 16);

   EXTI->PR = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -221,7 +229,9 @@ OSAL_IRQ_HANDLER(VectorE4) {
   uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

-  pr = EXTI->PR & EXTI->IMR & (1U << 17);

+

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 17);

   EXTI->PR = pr;

   if (pr & (1U << 17))

     EXTD1.config->channels[17].cb(&EXTD1, 17);

@@ -237,7 +247,9 @@ OSAL_IRQ_HANDLER(VectorE8) {
   uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

-  pr = EXTI->PR & EXTI->IMR & (1U << 18);

+

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 18);

   EXTI->PR = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -254,7 +266,9 @@ OSAL_IRQ_HANDLER(Vector48) {
   uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

-  pr = EXTI->PR & EXTI->IMR & (1U << 19);

+

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 19);

   EXTI->PR = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -271,7 +285,9 @@ OSAL_IRQ_HANDLER(Vector4C) {
   uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

-  pr = EXTI->PR & EXTI->IMR & (1U << 20);

+

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 20);

   EXTI->PR = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -289,7 +305,8 @@ OSAL_IRQ_HANDLER(Vector98) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR & EXTI->IMR & ((1U << 21) | (1U << 22));

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & ((1U << 21) | (1U << 22));

   EXTI->PR = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);

@@ -309,7 +326,9 @@ OSAL_IRQ_HANDLER(Vector120) {
   uint32_t pr;

 

   OSAL_IRQ_PROLOGUE();

-  pr = EXTI->PR & EXTI->IMR & (1U << 23);

+

+  pr = EXTI->PR;

+  pr &= EXTI->IMR & (1U << 23);

   EXTI->PR = pr;

   if (pr & (1U << 23))

     EXTD1.config->channels[23].cb(&EXTD1, 23);

diff --git a/os/hal/ports/STM32/STM32L4xx/ext_lld_isr.c b/os/hal/ports/STM32/STM32L4xx/ext_lld_isr.c
index 32c113e9b..dc4e5f002 100644
--- a/os/hal/ports/STM32/STM32L4xx/ext_lld_isr.c
+++ b/os/hal/ports/STM32/STM32L4xx/ext_lld_isr.c
@@ -58,7 +58,8 @@ OSAL_IRQ_HANDLER(Vector58) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 0);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 0);

   EXTI->PR1 = pr;

   if (pr & (1U << 0))

     EXTD1.config->channels[0].cb(&EXTD1, 0);

@@ -76,7 +77,8 @@ OSAL_IRQ_HANDLER(Vector5C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 1);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 1);

   EXTI->PR1 = pr;

   if (pr & (1U << 1))

     EXTD1.config->channels[1].cb(&EXTD1, 1);

@@ -94,7 +96,8 @@ OSAL_IRQ_HANDLER(Vector60) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 2);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 2);

   EXTI->PR1 = pr;

   if (pr & (1U << 2))

     EXTD1.config->channels[2].cb(&EXTD1, 2);

@@ -112,7 +115,8 @@ OSAL_IRQ_HANDLER(Vector64) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 3);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 3);

   EXTI->PR1 = pr;

   if (pr & (1U << 3))

     EXTD1.config->channels[3].cb(&EXTD1, 3);

@@ -130,7 +134,8 @@ OSAL_IRQ_HANDLER(Vector68) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 4);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 4);

   EXTI->PR1 = pr;

   if (pr & (1U << 4))

     EXTD1.config->channels[4].cb(&EXTD1, 4);

@@ -148,8 +153,9 @@ OSAL_IRQ_HANDLER(Vector9C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

-                               (1U << 9));

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & ((1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) |

+                      (1U << 9));

   EXTI->PR1 = pr;

   if (pr & (1U << 5))

     EXTD1.config->channels[5].cb(&EXTD1, 5);

@@ -175,8 +181,9 @@ OSAL_IRQ_HANDLER(VectorE0) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

-                               (1U << 14) | (1U << 15));

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & ((1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) |

+                      (1U << 14) | (1U << 15));

   EXTI->PR1 = pr;

   if (pr & (1U << 10))

     EXTD1.config->channels[10].cb(&EXTD1, 10);

@@ -204,7 +211,8 @@ OSAL_IRQ_HANDLER(Vector44) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 16);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 16);

   EXTI->PR1 = pr;

   if (pr & (1U << 16))

     EXTD1.config->channels[16].cb(&EXTD1, 16);

@@ -234,7 +242,8 @@ OSAL_IRQ_HANDLER(VectorE4) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 18);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 18);

   EXTI->PR1 = pr;

   if (pr & (1U << 18))

     EXTD1.config->channels[18].cb(&EXTD1, 18);

@@ -252,7 +261,8 @@ OSAL_IRQ_HANDLER(Vector48) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 19);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 19);

   EXTI->PR1 = pr;

   if (pr & (1U << 19))

     EXTD1.config->channels[19].cb(&EXTD1, 19);

@@ -270,7 +280,8 @@ OSAL_IRQ_HANDLER(Vector4C) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & (1U << 20);

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & (1U << 20);

   EXTI->PR1 = pr;

   if (pr & (1U << 20))

     EXTD1.config->channels[20].cb(&EXTD1, 20);

@@ -288,7 +299,8 @@ OSAL_IRQ_HANDLER(Vector140) {
 

   OSAL_IRQ_PROLOGUE();

 

-  pr = EXTI->PR1 & EXTI->IMR1 & ( (1U << 21) | ( 1U << 22 ) );

+  pr = EXTI->PR1;

+  pr &= EXTI->IMR1 & ( (1U << 21) | ( 1U << 22 ) );

   EXTI->PR1 = pr;

   if (pr & (1U << 21))

     EXTD1.config->channels[21].cb(&EXTD1, 21);