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85ec0bcc WD |
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 | ||
3e38691e | 33 | .globl ppc_longjmp; |
85ec0bcc | 34 | |
3e38691e | 35 | ppc_longjmp: |
85ec0bcc WD |
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) | |
40 | FP( lfd 14,((JB_FPRS+0*2)*4)(r3)) | |
41 | lwz r15,((JB_GPRS+1)*4)(r3) | |
42 | FP( lfd 15,((JB_FPRS+1*2)*4)(r3)) | |
43 | lwz r16,((JB_GPRS+2)*4)(r3) | |
44 | FP( lfd 16,((JB_FPRS+2*2)*4)(r3)) | |
45 | lwz r17,((JB_GPRS+3)*4)(r3) | |
46 | FP( lfd 17,((JB_FPRS+3*2)*4)(r3)) | |
47 | lwz r18,((JB_GPRS+4)*4)(r3) | |
48 | FP( lfd 18,((JB_FPRS+4*2)*4)(r3)) | |
49 | lwz r19,((JB_GPRS+5)*4)(r3) | |
50 | FP( lfd 19,((JB_FPRS+5*2)*4)(r3)) | |
51 | lwz r20,((JB_GPRS+6)*4)(r3) | |
52 | FP( lfd 20,((JB_FPRS+6*2)*4)(r3)) | |
53 | mtlr r0 | |
54 | lwz r21,((JB_GPRS+7)*4)(r3) | |
55 | FP( lfd 21,((JB_FPRS+7*2)*4)(r3)) | |
56 | lwz r22,((JB_GPRS+8)*4)(r3) | |
57 | FP( lfd 22,((JB_FPRS+8*2)*4)(r3)) | |
58 | lwz r0,(JB_CR*4)(r3) | |
59 | lwz r23,((JB_GPRS+9)*4)(r3) | |
60 | FP( lfd 23,((JB_FPRS+9*2)*4)(r3)) | |
61 | lwz r24,((JB_GPRS+10)*4)(r3) | |
62 | FP( lfd 24,((JB_FPRS+10*2)*4)(r3)) | |
63 | lwz r25,((JB_GPRS+11)*4)(r3) | |
64 | FP( lfd 25,((JB_FPRS+11*2)*4)(r3)) | |
65 | mtcrf 0xFF,r0 | |
66 | lwz r26,((JB_GPRS+12)*4)(r3) | |
67 | FP( lfd 26,((JB_FPRS+12*2)*4)(r3)) | |
68 | lwz r27,((JB_GPRS+13)*4)(r3) | |
69 | FP( lfd 27,((JB_FPRS+13*2)*4)(r3)) | |
70 | lwz r28,((JB_GPRS+14)*4)(r3) | |
71 | FP( lfd 28,((JB_FPRS+14*2)*4)(r3)) | |
72 | lwz r29,((JB_GPRS+15)*4)(r3) | |
73 | FP( lfd 29,((JB_FPRS+15*2)*4)(r3)) | |
74 | lwz r30,((JB_GPRS+16)*4)(r3) | |
75 | FP( lfd 30,((JB_FPRS+16*2)*4)(r3)) | |
76 | lwz r31,((JB_GPRS+17)*4)(r3) | |
77 | FP( lfd 31,((JB_FPRS+17*2)*4)(r3)) | |
78 | mr r3,r4 | |
79 | blr |