Correct code comments that referred to taskYIELD_FROM_ISR to portYIELD_FROM_ISR.

Update RV32 port to use 16 byte-alignment all the time (only strictly necessary when using FLOP instructions).

FreeRTOS/Source/include/message_buffer.h

@@ -399,10 +399,10 @@ BaseType_t xHigherPriorityTaskWoken = pdFALSE; // Initialised to pdFALSE.
     // priority of the currently executing task was unblocked and a context
     // switch should be performed to ensure the ISR returns to the unblocked
     // task.  In most FreeRTOS ports this is done by simply passing
-    // xHigherPriorityTaskWoken into taskYIELD_FROM_ISR(), which will test the
+    // xHigherPriorityTaskWoken into portYIELD_FROM_ISR(), which will test the
     // variables value, and perform the context switch if necessary.  Check the
     // documentation for the port in use for port specific instructions.
-    taskYIELD_FROM_ISR( xHigherPriorityTaskWoken );
+    portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
 }
 </pre>
  * \defgroup xMessageBufferSendFromISR xMessageBufferSendFromISR
@@ -588,10 +588,10 @@ BaseType_t xHigherPriorityTaskWoken = pdFALSE;  // Initialised to pdFALSE.
     // priority of the currently executing task was unblocked and a context
     // switch should be performed to ensure the ISR returns to the unblocked
     // task.  In most FreeRTOS ports this is done by simply passing
-    // xHigherPriorityTaskWoken into taskYIELD_FROM_ISR(), which will test the
+    // xHigherPriorityTaskWoken into portYIELD_FROM_ISR(), which will test the
     // variables value, and perform the context switch if necessary.  Check the
     // documentation for the port in use for port specific instructions.
-    taskYIELD_FROM_ISR( xHigherPriorityTaskWoken );
+    portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
 }
 </pre>
  * \defgroup xMessageBufferReceiveFromISR xMessageBufferReceiveFromISR

FreeRTOS/Source/include/queue.h

@@ -1284,7 +1284,7 @@ uint32_t ulVarToSend, ulValReceived;
 	// name of the yield function required is port specific.
 	if( xHigherPriorityTaskWokenByPost )
 	{
-		taskYIELD_YIELD_FROM_ISR();
+		portYIELD_FROM_ISR();
 	}
  }
  </pre>

FreeRTOS/Source/portable/GCC/RISC-V/portmacro.h

@@ -77,7 +77,7 @@ not need to be guarded with a critical section. */
 	#error This is the RV32 port that has not yet been adapted for 64.
 	#define portBYTE_ALIGNMENT			16
 #else
-	#define portBYTE_ALIGNMENT 8
+	#define portBYTE_ALIGNMENT			16
 #endif
 /*-----------------------------------------------------------*/
 

FreeRTOS/Source/portable/IAR/RISC-V/portmacro.h

@@ -79,7 +79,7 @@ not need to be guarded with a critical section. */
 	#error This is the RV32 port that has not yet been adapted for 64.
 	#define portBYTE_ALIGNMENT			16
 #else
-	#define portBYTE_ALIGNMENT 8
+	#define portBYTE_ALIGNMENT 			16
 #endif
 /*-----------------------------------------------------------*/