Fix compilation issue of IA32_flat port (#1122)

* Fix compilation issue of IAR32 port

* Add new line at EOF

* Fix header check

---------

Co-authored-by: Gaurav-Aggarwal-AWS <33462878+aggarg@users.noreply.github.com>

portable/GCC/IA32_flat/ISR_Support.h

@@ -26,106 +26,103 @@
  *
  */
 
-.extern ulTopOfSystemStack
-   .extern ulInterruptNesting
+    .extern ulTopOfSystemStack
+    .extern ulInterruptNesting
 
 /*-----------------------------------------------------------*/
 
-   .macro portFREERTOS_INTERRUPT_ENTRY
+.macro portFREERTOS_INTERRUPT_ENTRY
 
-/* Save general purpose registers. */
-pusha
+    /* Save general purpose registers. */
+    pusha
 
-/* If ulInterruptNesting is zero the rest of the task context will need
- * saving and a stack switch might be required. */
-movl ulInterruptNesting, % eax
-test % eax, % eax
-jne     2f
+    /* If ulInterruptNesting is zero the rest of the task context will need
+    saving and a stack switch might be required. */
+    movl    ulInterruptNesting, %eax
+    test    %eax, %eax
+    jne     2f
 
-/* Interrupts are not nested, so save the rest of the task context. */
-   .
+    /* Interrupts are not nested, so save the rest of the task context. */
+    .if configSUPPORT_FPU == 1
 
-   if configSUPPORT_FPU == 1
+        /* If the task has a buffer allocated to save the FPU context then
+        save the FPU context now. */
+        movl    pucPortTaskFPUContextBuffer, %eax
+        test    %eax, %eax
+        je      1f
+        fnsave  ( %eax ) /* Save FLOP context into ucTempFPUBuffer array. */
+        fwait
 
-/* If the task has a buffer allocated to save the FPU context then
- * save the FPU context now. */
-movl pucPortTaskFPUContextBuffer, % eax
-test % eax, % eax
-je      1f
-fnsave( % eax ) /* Save FLOP context into ucTempFPUBuffer array. */
-fwait
+        1:
+        /* Save the address of the FPU context, if any. */
+        push    pucPortTaskFPUContextBuffer
 
-1 :
-/* Save the address of the FPU context, if any. */
-push pucPortTaskFPUContextBuffer
+    .endif /* configSUPPORT_FPU */
 
-   .endif /* configSUPPORT_FPU */
+    /* Find the TCB. */
+    movl    pxCurrentTCB, %eax
 
-/* Find the TCB. */
-movl pxCurrentTCB, % eax
+    /* Stack location is first item in the TCB. */
+    movl    %esp, (%eax)
 
-/* Stack location is first item in the TCB. */
-     movl % esp, ( % eax )
+    /* Switch stacks. */
+    movl    ulTopOfSystemStack, %esp
+    movl    %esp, %ebp
 
-/* Switch stacks. */
-movl ulTopOfSystemStack, % esp
-movl % esp, % ebp
+    2:
+    /* Increment nesting count. */
+    add     $1, ulInterruptNesting
 
-2 :
-/* Increment nesting count. */
-add $1, ulInterruptNesting
-
-   .endm
+.endm
 /*-----------------------------------------------------------*/
 
-   .macro portINTERRUPT_EPILOGUE
-
-cli
-sub $1, ulInterruptNesting
+.macro portINTERRUPT_EPILOGUE
 
-/* If the nesting has unwound to zero. */
-movl ulInterruptNesting, % eax
-     test % eax, % eax
-     jne     2f
+    cli
+    sub     $1, ulInterruptNesting
 
-/* If a yield was requested then select a new TCB now. */
-movl ulPortYieldPending, % eax
-     test % eax, % eax
-     je      1f
-movl $0, ulPortYieldPending
-call vTaskSwitchContext
+    /* If the nesting has unwound to zero. */
+    movl    ulInterruptNesting, %eax
+    test    %eax, %eax
+    jne     2f
 
-1 :
-/* Stack location is first item in the TCB. */
-movl pxCurrentTCB, % eax movl( % eax ), % esp
+    /* If a yield was requested then select a new TCB now. */
+    movl    ulPortYieldPending, %eax
+    test    %eax, %eax
+    je      1f
+    movl    $0, ulPortYieldPending
+    call    vTaskSwitchContext
 
-   .
+    1:
+    /* Stack location is first item in the TCB. */
+    movl    pxCurrentTCB, %eax
+    movl    (%eax), %esp
 
-   if configSUPPORT_FPU == 1
+    .if configSUPPORT_FPU == 1
 
-/* Restore address of task's FPU context buffer. */
-pop pucPortTaskFPUContextBuffer
+        /* Restore address of task's FPU context buffer. */
+        pop     pucPortTaskFPUContextBuffer
 
-/* If the task has a buffer allocated in which its FPU context is saved,
- * then restore it now. */
-movl pucPortTaskFPUContextBuffer, % eax
-test % eax, % eax
-je      1f
-frstor( % eax )
-1 :
-.endif
+        /* If the task has a buffer allocated in which its FPU context is saved,
+        then restore it now. */
+        movl    pucPortTaskFPUContextBuffer, %eax
+        test    %eax, %eax
+        je      1f
+        frstor  ( %eax )
+        1:
+    .endif
 
-2 :
-popa
+    2:
+    popa
 
-   .endm
+.endm
 /*-----------------------------------------------------------*/
 
-   .macro portFREERTOS_INTERRUPT_EXIT
+.macro portFREERTOS_INTERRUPT_EXIT
 
-portINTERRUPT_EPILOGUE
-/* EOI. */
-movl $0x00, ( 0xFEE000B0 )
-iret
+    portINTERRUPT_EPILOGUE
+    /* EOI. */
+    movl    $0x00, (0xFEE000B0)
+    iret
 
-   .endm
+.endm