ppc_longjmp.S 1.9 KB

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