..back

;      TITLE("Jump to Unwind")
;++
;
; Copyright (c) 1995-2000 Microsoft Corporation.  All rights reserved.
;
; Module Name:
;
;    jmpuwind.s
;
; Abstract:
;
;    This module implements the SH3 specific routine to jump to the runtime
;    time library unwind routine.
;
; Environment:
;
;    Any mode.
;
;--

    .include "kxsh3.h"

;++
;
; ULONG
; __C_ExecuteExceptionFilter (
;    PEXCEPTION_POINTERS ExceptionPointers,
;    EXCEPTION_FILTER ExceptionFilter,
;    ULONG EstablisherFrame
;    )
;
; Routine Description:
;
;    This function sets the static link and transfers control to the specified
;    exception filter routine.
;
; Arguments:
;
;    ExceptionPointers (r4) - Supplies a pointer to the exception pointers
;       structure.
;
;    ExceptionFilter (r5) - Supplies the address of the exception filter
;       routine.
;
;    EstablisherFrame (r6) - Supplies the establisher frame pointer.
;
; Return Value:
;
;    The value returned by the exception filter routine.
;
;--

    LEAF_ENTRY ___C_ExecuteExceptionFilter
    jmp    @r5        ; transfer control to exception filter
    mov    r6, r0        ; set static link
    .endf

;++
;
; VOID
; __C_ExecuteTerminationHandler (
;    BOOLEAN AbnormalTermination,
;    TERMINATION_HANDLER TerminationHandler,
;    ULONG EstablisherFrame
;    )
;
; Routine Description:
;
;    This function sets the static link and transfers control to the specified
;    termination handler routine.
;
; Arguments:
;
;    AbnormalTermination (r4) - Supplies a boolean value that determines
;       whether the termination is abnormal.
;
;    TerminationHandler (r5) - Supplies the address of the termination handler
;       routine.
;
;    EstablisherFrame (r6) - Supplies the establisher frame pointer.
;
; Return Value:
;
;    None.
;
;--

    LEAF_ENTRY ___C_ExecuteTerminationHandler
    jmp    @r5        ; transfer control to exception filter
    mov    r6, r0        ; set static link
    .endf