diff options
author | Alex White <alex.white@oarcorp.com> | 2021-09-30 23:57:01 -0500 |
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committer | Joel Sherrill <joel@rtems.org> | 2021-10-13 14:45:37 -0500 |
commit | d03776e804e2cb190442d2a2debf297714ca8049 (patch) | |
tree | 108aba7fb973915a52c407751ce23abf77eccac6 /bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S | |
parent | bsps: Add MicroBlaze FPGA BSP (diff) | |
download | rtems-d03776e804e2cb190442d2a2debf297714ca8049.tar.bz2 |
microblaze: Rework for RTEMS 6
This reworks the existing MicroBlaze architecture port and BSP to
achieve basic functionality using the latest RTEMS APIs.
Diffstat (limited to 'bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S')
-rw-r--r-- | bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S b/bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S new file mode 100644 index 0000000000..30436a43e9 --- /dev/null +++ b/bsps/microblaze/microblaze_fpga/start/_hw_exception_handler.S @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ + +/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + 3. Neither the name of Xilinx nor the names of its contributors may be + used to endorse or promote products derived from this software without + specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS + IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +*/ + + .text + .globl _hw_exception_handler # HW Exception Handler Label + .align 2 + + _hw_exception_handler: +#ifndef __rtems__ + rtsd r17, 0 + nop +#else /* __rtems__ */ + /* Subtract stack frame */ + addik r1, r1, -52 + + swi r5, r1, 8 + + addi r5, r0, 0xFFFF + + braid _ISR_Handler + nop +#endif /* __rtems__ */ |