blob: 5ca6f6f3da9b19f29a2f0ba9dcca9607af81716a [file] [log] [blame]
wdenk85ec0bc2003-03-31 16:34:49 +00001/* 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
wdenk3e386912003-04-05 00:53:31 +000033.globl ppc_longjmp;
wdenk85ec0bc2003-03-31 16:34:49 +000034
wdenk3e386912003-04-05 00:53:31 +000035ppc_longjmp:
wdenk85ec0bc2003-03-31 16:34:49 +000036 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