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abi_loong64.h

abi_loong64.h 1.9 KB
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  1. // Copyright 2022 The Go Authors. All rights reserved.
    2. 

  2. // Use of this source code is governed by a BSD-style
    3. 

  3. // license that can be found in the LICENSE file.
    4. 

  4. 

  5. // Macros for transitioning from the host ABI to Go ABI0.
    6. 

  6. //
    7. 

  7. // These macros save and restore the callee-saved registers
    8. 

  8. // from the stack, but they don't adjust stack pointer, so
    9. 

  9. // the user should prepare stack space in advance.
    10. 

  10. // SAVE_R22_TO_R31(offset) saves R22 ~ R31 to the stack space
    11. 

  11. // of ((offset)+0*8)(R3) ~ ((offset)+9*8)(R3).
    12. 

  12. //
    13. 

  13. // SAVE_F24_TO_F31(offset) saves F24 ~ F31 to the stack space
    14. 

  14. // of ((offset)+0*8)(R3) ~ ((offset)+7*8)(R3).
    15. 

  15. //
    16. 

  16. // Note: g is R22
    17. 

  17. 

  18. #define SAVE_R22_TO_R31(offset)	\
    19. 

  19. 	MOVV	g,   ((offset)+(0*8))(R3)	\
    20. 

  20. 	MOVV	R23, ((offset)+(1*8))(R3)	\
    21. 

  21. 	MOVV	R24, ((offset)+(2*8))(R3)	\
    22. 

  22. 	MOVV	R25, ((offset)+(3*8))(R3)	\
    23. 

  23. 	MOVV	R26, ((offset)+(4*8))(R3)	\
    24. 

  24. 	MOVV	R27, ((offset)+(5*8))(R3)	\
    25. 

  25. 	MOVV	R28, ((offset)+(6*8))(R3)	\
    26. 

  26. 	MOVV	R29, ((offset)+(7*8))(R3)	\
    27. 

  27. 	MOVV	R30, ((offset)+(8*8))(R3)	\
    28. 

  28. 	MOVV	R31, ((offset)+(9*8))(R3)
    29. 

  29. 

  30. #define SAVE_F24_TO_F31(offset)	\
    31. 

  31. 	MOVD	F24, ((offset)+(0*8))(R3)	\
    32. 

  32. 	MOVD	F25, ((offset)+(1*8))(R3)	\
    33. 

  33. 	MOVD	F26, ((offset)+(2*8))(R3)	\
    34. 

  34. 	MOVD	F27, ((offset)+(3*8))(R3)	\
    35. 

  35. 	MOVD	F28, ((offset)+(4*8))(R3)	\
    36. 

  36. 	MOVD	F29, ((offset)+(5*8))(R3)	\
    37. 

  37. 	MOVD	F30, ((offset)+(6*8))(R3)	\
    38. 

  38. 	MOVD	F31, ((offset)+(7*8))(R3)
    39. 

  39. 

  40. #define RESTORE_R22_TO_R31(offset)	\
    41. 

  41. 	MOVV	((offset)+(0*8))(R3),  g	\
    42. 

  42. 	MOVV	((offset)+(1*8))(R3), R23	\
    43. 

  43. 	MOVV	((offset)+(2*8))(R3), R24	\
    44. 

  44. 	MOVV	((offset)+(3*8))(R3), R25	\
    45. 

  45. 	MOVV	((offset)+(4*8))(R3), R26	\
    46. 

  46. 	MOVV	((offset)+(5*8))(R3), R27	\
    47. 

  47. 	MOVV	((offset)+(6*8))(R3), R28	\
    48. 

  48. 	MOVV	((offset)+(7*8))(R3), R29	\
    49. 

  49. 	MOVV	((offset)+(8*8))(R3), R30	\
    50. 

  50. 	MOVV	((offset)+(9*8))(R3), R31
    51. 

  51. 

  52. #define RESTORE_F24_TO_F31(offset)	\
    53. 

  53. 	MOVD	((offset)+(0*8))(R3), F24	\
    54. 

  54. 	MOVD	((offset)+(1*8))(R3), F25	\
    55. 

  55. 	MOVD	((offset)+(2*8))(R3), F26	\
    56. 

  56. 	MOVD	((offset)+(3*8))(R3), F27	\
    57. 

  57. 	MOVD	((offset)+(4*8))(R3), F28	\
    58. 

  58. 	MOVD	((offset)+(5*8))(R3), F29	\
    59. 

  59. 	MOVD	((offset)+(6*8))(R3), F30	\
    60. 

  60. 	MOVD	((offset)+(7*8))(R3), F31
    61.