Retro68/gcc/newlib/libc/machine/microblaze/setjmp.S
Wolfgang Thaller d464252791 re-add newlib
2017-04-11 23:13:36 +02:00

80 lines
2.7 KiB
ArmAsm

/* 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.
*
* setjmp - save stack context for non-local goto
* args - r5 - jmp_buf
*
* jmpbuf frame structure
* ---------------------
*
* +-------------+ + 0
* | r1 |
* +-------------+ + 4
* | r13 |
* | . |
* | . |
* | . |
* | r31 |
* +-------------+ + 80
* | . |
* | . |
*/
.globl setjmp
.section .text
.align 2
.ent setjmp
setjmp:
swi r1, r5, 0
swi r13, r5, 4
swi r14, r5, 8
swi r15, r5, 12
swi r16, r5, 16
swi r17, r5, 20
swi r18, r5, 24
swi r19, r5, 28
swi r20, r5, 32
swi r21, r5, 36
swi r22, r5, 40
swi r23, r5, 44
swi r24, r5, 48
swi r25, r5, 52
swi r26, r5, 56
swi r27, r5, 60
swi r28, r5, 64
swi r29, r5, 68
swi r30, r5, 72
swi r31, r5, 76
rtsd r15, 8
or r3, r0, r0
.end setjmp