Subversion Repositories openrisc_2011-10-31

                RSEG ICODE:CODE

                EXTERN vUARTRxISRHandler
                EXTERN vUARTTxISRHandler                
                
                PUBLIC vUARTRxISRWrapper
                PUBLIC vUARTTxISRWrapper                

; Wrappers for the serial port interrupt service routines.  These can cause a
; context switch so requires an assembly wrapper.

; Defines the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
#include "ISR_Support.h"

vUARTRxISRWrapper:

        portSAVE_CONTEXT                                ; Save the context of the current task.

        jarl    vUARTRxISRHandler, lp   ; Call the ISR routine.

        portRESTORE_CONTEXT                             ; Restore the context of the current task -
                                                                        ; which may be different to the task that
                                                                        ; was interrupted.

vUARTTxISRWrapper:

        portSAVE_CONTEXT                                ; Save the context of the current task.

        jarl    vUARTTxISRHandler, lp   ; Call the ISR routine.

        portRESTORE_CONTEXT                             ; Restore the context of the current task -
                                                                        ; which may be different to the task that
                                                                        ; was interrupted.


      COMMON INTVEC:CODE:ROOT(2)
      ORG 2c0H
`??vUARTRxISRWrapper??INTVEC 2c0`:
        JR vUARTRxISRWrapper

      COMMON INTVEC:CODE:ROOT(2)
      ORG 2d0H
`??vUARTTxISRWrapper??INTVEC 2d0`:
        JR vUARTTxISRWrapper

        END