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https://github.com/autc04/Retro68.git
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81 lines
2.7 KiB
ArmAsm
81 lines
2.7 KiB
ArmAsm
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/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of Xilinx nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* longjmp - non-local jump to a saved stack context
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* args - r5 - jmp_buf
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* r6 - val
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*
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* jmpbuf frame structure
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* ---------------------
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*
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* +-------------+ + 0
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* | r1 |
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* +-------------+ + 4
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* | r13 |
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* | . |
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* | . |
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* | . |
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* | r31 |
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* +-------------+ + 80
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* | . |
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* | . |
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*/
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.globl longjmp
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.section .text
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.align 2
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.ent longjmp
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longjmp:
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lwi r1, r5, 0
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lwi r13, r5, 4
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lwi r14, r5, 8
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lwi r15, r5, 12
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lwi r16, r5, 16
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lwi r17, r5, 20
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lwi r18, r5, 24
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lwi r19, r5, 28
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lwi r20, r5, 32
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lwi r21, r5, 36
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lwi r22, r5, 40
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lwi r23, r5, 44
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lwi r24, r5, 48
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lwi r25, r5, 52
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lwi r26, r5, 56
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lwi r27, r5, 60
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lwi r28, r5, 64
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lwi r29, r5, 68
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lwi r30, r5, 72
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lwi r31, r5, 76
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rtsd r15, 8
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or r3, r0, r6
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.end longjmp
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