| wdenk | 85ec0bc | 2003-03-31 16:34:49 +0000 | [diff] [blame^] | 1 | /* setjmp 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 | |
| 32 | .globl setctxsp; |
| 33 | setctxsp: |
| 34 | mr r1, r3 |
| 35 | blr |
| 36 | |
| 37 | .globl _setjmp; |
| 38 | _setjmp: |
| 39 | stw r1,(JB_GPR1*4)(3) |
| 40 | mflr r0 |
| 41 | stw r2,(JB_GPR2*4)(3) |
| 42 | stw r14,((JB_GPRS+0)*4)(3) |
| 43 | FP( stfd 14,((JB_FPRS+0*2)*4)(3)) |
| 44 | stw r0,(JB_LR*4)(3) |
| 45 | stw r15,((JB_GPRS+1)*4)(3) |
| 46 | FP( stfd 15,((JB_FPRS+1*2)*4)(3)) |
| 47 | mfcr r0 |
| 48 | stw r16,((JB_GPRS+2)*4)(3) |
| 49 | FP( stfd 16,((JB_FPRS+2*2)*4)(3)) |
| 50 | stw r0,(JB_CR*4)(3) |
| 51 | stw r17,((JB_GPRS+3)*4)(3) |
| 52 | FP( stfd 17,((JB_FPRS+3*2)*4)(3)) |
| 53 | stw r18,((JB_GPRS+4)*4)(3) |
| 54 | FP( stfd 18,((JB_FPRS+4*2)*4)(3)) |
| 55 | stw r19,((JB_GPRS+5)*4)(3) |
| 56 | FP( stfd 19,((JB_FPRS+5*2)*4)(3)) |
| 57 | stw r20,((JB_GPRS+6)*4)(3) |
| 58 | FP( stfd 20,((JB_FPRS+6*2)*4)(3)) |
| 59 | stw r21,((JB_GPRS+7)*4)(3) |
| 60 | FP( stfd 21,((JB_FPRS+7*2)*4)(3)) |
| 61 | stw r22,((JB_GPRS+8)*4)(3) |
| 62 | FP( stfd 22,((JB_FPRS+8*2)*4)(3)) |
| 63 | stw r23,((JB_GPRS+9)*4)(3) |
| 64 | FP( stfd 23,((JB_FPRS+9*2)*4)(3)) |
| 65 | stw r24,((JB_GPRS+10)*4)(3) |
| 66 | FP( stfd 24,((JB_FPRS+10*2)*4)(3)) |
| 67 | stw r25,((JB_GPRS+11)*4)(3) |
| 68 | FP( stfd 25,((JB_FPRS+11*2)*4)(3)) |
| 69 | stw r26,((JB_GPRS+12)*4)(3) |
| 70 | FP( stfd 26,((JB_FPRS+12*2)*4)(3)) |
| 71 | stw r27,((JB_GPRS+13)*4)(3) |
| 72 | FP( stfd 27,((JB_FPRS+13*2)*4)(3)) |
| 73 | stw r28,((JB_GPRS+14)*4)(3) |
| 74 | FP( stfd 28,((JB_FPRS+14*2)*4)(3)) |
| 75 | stw r29,((JB_GPRS+15)*4)(3) |
| 76 | FP( stfd 29,((JB_FPRS+15*2)*4)(3)) |
| 77 | stw r30,((JB_GPRS+16)*4)(3) |
| 78 | FP( stfd 30,((JB_FPRS+16*2)*4)(3)) |
| 79 | stw r31,((JB_GPRS+17)*4)(3) |
| 80 | FP( stfd 31,((JB_FPRS+17*2)*4)(3)) |
| 81 | |
| 82 | li 3, 0 |
| 83 | blr |