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      1  1.1  jmcneill /*	$NetBSD: setjmp.S,v 1.1.1.1 2018/08/16 18:17:47 jmcneill Exp $	*/
      2  1.1  jmcneill 
      3  1.1  jmcneill /*
      4  1.1  jmcneill  * Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
      5  1.1  jmcneill  * This program and the accompanying materials are licensed and made
      6  1.1  jmcneill available
      7  1.1  jmcneill  * under the terms and conditions of the BSD License which accompanies
      8  1.1  jmcneill this
      9  1.1  jmcneill  * distribution.  The full text of the license may be found at
     10  1.1  jmcneill  * http://opensource.org/licenses/bsd-license.php.
     11  1.1  jmcneill  *
     12  1.1  jmcneill  * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
     13  1.1  jmcneill BASIS,
     14  1.1  jmcneill  * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
     15  1.1  jmcneill  * IMPLIED.
     16  1.1  jmcneill  */
     17  1.1  jmcneill 	.text
     18  1.1  jmcneill 	.p2align 3
     19  1.1  jmcneill 
     20  1.1  jmcneill #define GPR_LAYOUT			\
     21  1.1  jmcneill 	REG_PAIR (x19, x20, 0);		\
     22  1.1  jmcneill 	REG_PAIR (x21, x22, 16);	\
     23  1.1  jmcneill 	REG_PAIR (x23, x24, 32);	\
     24  1.1  jmcneill 	REG_PAIR (x25, x26, 48);	\
     25  1.1  jmcneill 	REG_PAIR (x27, x28, 64);	\
     26  1.1  jmcneill 	REG_PAIR (x29, x30, 80);	\
     27  1.1  jmcneill 	REG_ONE (x16, 96)
     28  1.1  jmcneill 
     29  1.1  jmcneill #define FPR_LAYOUT			\
     30  1.1  jmcneill 	REG_PAIR(d8, d9, 112);		\
     31  1.1  jmcneill 	REG_PAIR(d10, d11, 128);	\
     32  1.1  jmcneill 	REG_PAIR(d12, d13, 144);	\
     33  1.1  jmcneill 	REG_PAIR(d14, d15, 160);
     34  1.1  jmcneill 
     35  1.1  jmcneill #define REG_PAIR(REG1, REG2, OFFS)      stp REG1, REG2, [x0, OFFS]
     36  1.1  jmcneill #define REG_ONE(REG1, OFFS)             str REG1, [x0, OFFS]
     37  1.1  jmcneill 
     38  1.1  jmcneill 	.globl	setjmp
     39  1.1  jmcneill 	.type	setjmp, @function
     40  1.1  jmcneill setjmp:
     41  1.1  jmcneill 	mov	x16, sp
     42  1.1  jmcneill 	GPR_LAYOUT
     43  1.1  jmcneill 	FPR_LAYOUT
     44  1.1  jmcneill 	mov	w0, #0
     45  1.1  jmcneill 	ret
     46  1.1  jmcneill 
     47  1.1  jmcneill #undef REG_PAIR
     48  1.1  jmcneill #undef REG_ONE
     49  1.1  jmcneill 
     50  1.1  jmcneill #define REG_PAIR(REG1, REG2, OFFS)      ldp REG1, REG2, [x0, OFFS]
     51  1.1  jmcneill #define REG_ONE(REG1, OFFS)             ldr REG1, [x0, OFFS]
     52  1.1  jmcneill 
     53  1.1  jmcneill 	.globl	longjmp
     54  1.1  jmcneill 	.type	longjmp, @function
     55  1.1  jmcneill longjmp:
     56  1.1  jmcneill 	GPR_LAYOUT
     57  1.1  jmcneill 	FPR_LAYOUT
     58  1.1  jmcneill 	mov	sp, x16
     59  1.1  jmcneill 	cmp	w1, #0
     60  1.1  jmcneill 	mov	w0, #1
     61  1.1  jmcneill 	csel	w0, w1, w0, ne
     62  1.1  jmcneill 	br	x30
     63