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      1 /*	$NetBSD: setjmp.S,v 1.1.1.1 2018/08/16 18:17:47 jmcneill Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
      5  * This program and the accompanying materials are licensed and made
      6 available
      7  * under the terms and conditions of the BSD License which accompanies
      8 this
      9  * distribution.  The full text of the license may be found at
     10  * http://opensource.org/licenses/bsd-license.php.
     11  *
     12  * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
     13 BASIS,
     14  * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
     15  * IMPLIED.
     16  */
     17 	.text
     18 	.p2align 3
     19 
     20 #define GPR_LAYOUT			\
     21 	REG_PAIR (x19, x20, 0);		\
     22 	REG_PAIR (x21, x22, 16);	\
     23 	REG_PAIR (x23, x24, 32);	\
     24 	REG_PAIR (x25, x26, 48);	\
     25 	REG_PAIR (x27, x28, 64);	\
     26 	REG_PAIR (x29, x30, 80);	\
     27 	REG_ONE (x16, 96)
     28 
     29 #define FPR_LAYOUT			\
     30 	REG_PAIR(d8, d9, 112);		\
     31 	REG_PAIR(d10, d11, 128);	\
     32 	REG_PAIR(d12, d13, 144);	\
     33 	REG_PAIR(d14, d15, 160);
     34 
     35 #define REG_PAIR(REG1, REG2, OFFS)      stp REG1, REG2, [x0, OFFS]
     36 #define REG_ONE(REG1, OFFS)             str REG1, [x0, OFFS]
     37 
     38 	.globl	setjmp
     39 	.type	setjmp, @function
     40 setjmp:
     41 	mov	x16, sp
     42 	GPR_LAYOUT
     43 	FPR_LAYOUT
     44 	mov	w0, #0
     45 	ret
     46 
     47 #undef REG_PAIR
     48 #undef REG_ONE
     49 
     50 #define REG_PAIR(REG1, REG2, OFFS)      ldp REG1, REG2, [x0, OFFS]
     51 #define REG_ONE(REG1, OFFS)             ldr REG1, [x0, OFFS]
     52 
     53 	.globl	longjmp
     54 	.type	longjmp, @function
     55 longjmp:
     56 	GPR_LAYOUT
     57 	FPR_LAYOUT
     58 	mov	sp, x16
     59 	cmp	w1, #0
     60 	mov	w0, #1
     61 	csel	w0, w1, w0, ne
     62 	br	x30
     63