1#include <picolibc.h>
2
3 ##############################################################################
4 # setjmp.S -- CRX setjmp routine                                             #
5 #                                                                            #
6 /* Copyright (c) 2004 National Semiconductor Corporation                     */
7 #                                                                            #
8 # The authors hereby grant permission to use, copy, modify, distribute,      #
9 # and license this software and its documentation for any purpose, provided  #
10 # that existing copyright notices are retained in all copies and that this   #
11 # notice is included verbatim in any distributions. No written agreement,    #
12 # license, or royalty fee is required for any of the authorized uses.        #
13 # Modifications to this software may be copyrighted by their authors         #
14 # and need not follow the licensing terms described here, provided that      #
15 # the new terms are clearly indicated on the first page of each file where   #
16 # they apply.                                                                #
17 #                                                                            #
18 # C library -- setjmp, longjmp                                               #
19 # longjmp(a,v)                                                               #
20 # will generate a "return(v)"                                                #
21 # from the last call to                                                      #
22 # setjmp(a)                                                                  #
23 # by restoring r7-ra, sp,                                                    #
24 # and pc from 'a'                                                            #
25 # and doing a return. (Makes sure that longjmp never returns 0).             #
26 ##############################################################################
27
28	.text
29	.file	"setjmp.s"
30        .align 4
31
32        .globl _setjmp
33        .align 4
34_setjmp:
35        #r2: .blkw
36        storm r2,{r7,r8,r9,r10,r11,r12,r13,r14}
37	stord sp,0(r2)
38        movd  $0,r0
39        jump  ra
40
41        .globl _longjmp
42_longjmp:
43        #r2: .blkw # pointer save area
44        #r3: .blkw # ret vlaue
45        loadm r2, {r7,r8,r9,r10,r11,r12,r13,ra}
46        loadd 0(r2), sp
47        movd r3, r0
48        cmpd $0, r3
49        bne end1
50        movd $1, r0
51end1:
52        jump ra
53        .align 4
54