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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
Wolfgang Denkeee479c2013-07-08 11:48:07 +02005 * SPDX-License-Identifier: LGPL-2.1+
6 */
wdenk85ec0bc2003-03-31 16:34:49 +00007
8#include <ppc_asm.tmpl>
9
10# define JB_GPR1 0 /* Also known as the stack pointer */
11# define JB_GPR2 1
12# define JB_LR 2 /* The address we will return to */
13# define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */
14# define JB_CR 21 /* Condition code registers. */
15# define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */
16# define JB_SIZE (58*4)
17
18#define FP(x...) x
19#define FP(x...) x
20
wdenk3e386912003-04-05 00:53:31 +000021.globl ppc_longjmp;
wdenk85ec0bc2003-03-31 16:34:49 +000022
wdenk3e386912003-04-05 00:53:31 +000023ppc_longjmp:
wdenk85ec0bc2003-03-31 16:34:49 +000024 lwz r1,(JB_GPR1*4)(r3)
25 lwz r2,(JB_GPR2*4)(r3)
26 lwz r0,(JB_LR*4)(r3)
27 lwz r14,((JB_GPRS+0)*4)(r3)
28FP( lfd 14,((JB_FPRS+0*2)*4)(r3))
29 lwz r15,((JB_GPRS+1)*4)(r3)
30FP( lfd 15,((JB_FPRS+1*2)*4)(r3))
31 lwz r16,((JB_GPRS+2)*4)(r3)
32FP( lfd 16,((JB_FPRS+2*2)*4)(r3))
33 lwz r17,((JB_GPRS+3)*4)(r3)
34FP( lfd 17,((JB_FPRS+3*2)*4)(r3))
35 lwz r18,((JB_GPRS+4)*4)(r3)
36FP( lfd 18,((JB_FPRS+4*2)*4)(r3))
37 lwz r19,((JB_GPRS+5)*4)(r3)
38FP( lfd 19,((JB_FPRS+5*2)*4)(r3))
39 lwz r20,((JB_GPRS+6)*4)(r3)
40FP( lfd 20,((JB_FPRS+6*2)*4)(r3))
41 mtlr r0
42 lwz r21,((JB_GPRS+7)*4)(r3)
43FP( lfd 21,((JB_FPRS+7*2)*4)(r3))
44 lwz r22,((JB_GPRS+8)*4)(r3)
45FP( lfd 22,((JB_FPRS+8*2)*4)(r3))
46 lwz r0,(JB_CR*4)(r3)
47 lwz r23,((JB_GPRS+9)*4)(r3)
48FP( lfd 23,((JB_FPRS+9*2)*4)(r3))
49 lwz r24,((JB_GPRS+10)*4)(r3)
50FP( lfd 24,((JB_FPRS+10*2)*4)(r3))
51 lwz r25,((JB_GPRS+11)*4)(r3)
52FP( lfd 25,((JB_FPRS+11*2)*4)(r3))
53 mtcrf 0xFF,r0
54 lwz r26,((JB_GPRS+12)*4)(r3)
55FP( lfd 26,((JB_FPRS+12*2)*4)(r3))
56 lwz r27,((JB_GPRS+13)*4)(r3)
57FP( lfd 27,((JB_FPRS+13*2)*4)(r3))
58 lwz r28,((JB_GPRS+14)*4)(r3)
59FP( lfd 28,((JB_FPRS+14*2)*4)(r3))
60 lwz r29,((JB_GPRS+15)*4)(r3)
61FP( lfd 29,((JB_FPRS+15*2)*4)(r3))
62 lwz r30,((JB_GPRS+16)*4)(r3)
63FP( lfd 30,((JB_FPRS+16*2)*4)(r3))
64 lwz r31,((JB_GPRS+17)*4)(r3)
65FP( lfd 31,((JB_FPRS+17*2)*4)(r3))
66 mr r3,r4
67 blr