1/* longjmp for PowerPC.
2   Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, write to the Free
17   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18   02111-1307 USA.  */
19
20#include <ppc_asm.tmpl>
21
22# define JB_GPR1   0  /* Also known as the stack pointer */
23# define JB_GPR2   1
24# define JB_LR     2  /* The address we will return to */
25# define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total */
26# define JB_CR     21 /* Condition code registers. */
27# define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total */
28# define JB_SIZE   (58*4)
29
30#define FP(x...) x
31#define FP(x...) x
32
33.globl      ppc_longjmp;
34
35ppc_longjmp:
36	lwz r1,(JB_GPR1*4)(r3)
37	lwz r2,(JB_GPR2*4)(r3)
38	lwz r0,(JB_LR*4)(r3)
39	lwz r14,((JB_GPRS+0)*4)(r3)
40FP(	lfd 14,((JB_FPRS+0*2)*4)(r3))
41	lwz r15,((JB_GPRS+1)*4)(r3)
42FP(	lfd 15,((JB_FPRS+1*2)*4)(r3))
43	lwz r16,((JB_GPRS+2)*4)(r3)
44FP(	lfd 16,((JB_FPRS+2*2)*4)(r3))
45	lwz r17,((JB_GPRS+3)*4)(r3)
46FP(	lfd 17,((JB_FPRS+3*2)*4)(r3))
47	lwz r18,((JB_GPRS+4)*4)(r3)
48FP(	lfd 18,((JB_FPRS+4*2)*4)(r3))
49	lwz r19,((JB_GPRS+5)*4)(r3)
50FP(	lfd 19,((JB_FPRS+5*2)*4)(r3))
51	lwz r20,((JB_GPRS+6)*4)(r3)
52FP(	lfd 20,((JB_FPRS+6*2)*4)(r3))
53	mtlr r0
54	lwz r21,((JB_GPRS+7)*4)(r3)
55FP(	lfd 21,((JB_FPRS+7*2)*4)(r3))
56	lwz r22,((JB_GPRS+8)*4)(r3)
57FP(	lfd 22,((JB_FPRS+8*2)*4)(r3))
58	lwz r0,(JB_CR*4)(r3)
59	lwz r23,((JB_GPRS+9)*4)(r3)
60FP(	lfd 23,((JB_FPRS+9*2)*4)(r3))
61	lwz r24,((JB_GPRS+10)*4)(r3)
62FP(	lfd 24,((JB_FPRS+10*2)*4)(r3))
63	lwz r25,((JB_GPRS+11)*4)(r3)
64FP(	lfd 25,((JB_FPRS+11*2)*4)(r3))
65	mtcrf 0xFF,r0
66	lwz r26,((JB_GPRS+12)*4)(r3)
67FP(	lfd 26,((JB_FPRS+12*2)*4)(r3))
68	lwz r27,((JB_GPRS+13)*4)(r3)
69FP(	lfd 27,((JB_FPRS+13*2)*4)(r3))
70	lwz r28,((JB_GPRS+14)*4)(r3)
71FP(	lfd 28,((JB_FPRS+14*2)*4)(r3))
72	lwz r29,((JB_GPRS+15)*4)(r3)
73FP(	lfd 29,((JB_FPRS+15*2)*4)(r3))
74	lwz r30,((JB_GPRS+16)*4)(r3)
75FP(	lfd 30,((JB_FPRS+16*2)*4)(r3))
76	lwz r31,((JB_GPRS+17)*4)(r3)
77FP(	lfd 31,((JB_FPRS+17*2)*4)(r3))
78	mr r3,r4
79	blr
80