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riscv
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riscv-semihosting
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src
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nr.rs

nr.rs 2.2 KB
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  1. //! Semihosting operations
    2. 

  2. //!
    3. 

  3. //! The details of what each operation does can be found in the
    4. 

  4. //! [ARM Semihosting Specification](https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst#semihosting-operations).
    5. 

  5. //! The RISC-V Semihosting operations are identiacal to ARM's, so their
    6. 

  6. //! documentation is sufficient.
    7. 

  7. 

  8. #![allow(missing_docs)]
    9. 

  9. 

  10. pub const CLOCK: usize = 0x10;
    11. 

  11. pub const CLOSE: usize = 0x02;
    12. 

  12. pub const ELAPSED: usize = 0x30;
    13. 

  13. pub const ERRNO: usize = 0x13;
    14. 

  14. pub const FLEN: usize = 0x0c;
    15. 

  15. pub const GET_CMDLINE: usize = 0x15;
    16. 

  16. pub const HEAPINFO: usize = 0x16;
    17. 

  17. pub const ISERROR: usize = 0x08;
    18. 

  18. pub const ISTTY: usize = 0x09;
    19. 

  19. pub const OPEN: usize = 0x01;
    20. 

  20. pub const READ: usize = 0x06;
    21. 

  21. pub const READC: usize = 0x07;
    22. 

  22. pub const REMOVE: usize = 0x0e;
    23. 

  23. pub const RENAME: usize = 0x0f;
    24. 

  24. pub const SEEK: usize = 0x0a;
    25. 

  25. pub const SYSTEM: usize = 0x12;
    26. 

  26. pub const TICKFREQ: usize = 0x31;
    27. 

  27. pub const TIME: usize = 0x11;
    28. 

  28. pub const TMPNAM: usize = 0x0d;
    29. 

  29. pub const WRITE0: usize = 0x04;
    30. 

  30. pub const WRITE: usize = 0x05;
    31. 

  31. pub const WRITEC: usize = 0x03;
    32. 

  32. pub const ENTER_SVC: usize = 0x17;
    33. 

  33. pub const REPORT_EXCEPTION: usize = 0x18;
    34. 

  34. 

  35. /// Values for the mode parameter of the OPEN syscall.
    36. 

  36. pub mod open {
    37. 

  37.     /// Mode corresponding to fopen "r" mode.
    38. 

  38.     pub const R: usize = 0;
    39. 

  39.     /// Mode corresponding to fopen "rb" mode.
    40. 

  40.     pub const R_BINARY: usize = 1;
    41. 

  41.     /// Mode corresponding to fopen "r+" mode.
    42. 

  42.     pub const RW: usize = 2;
    43. 

  43.     /// Mode corresponding to fopen "r+b" mode.
    44. 

  44.     pub const RW_BINARY: usize = 3;
    45. 

  45.     /// Mode corresponding to fopen "w" mode.
    46. 

  46.     pub const W_TRUNC: usize = 4;
    47. 

  47.     /// Mode corresponding to fopen "wb" mode.
    48. 

  48.     pub const W_TRUNC_BINARY: usize = 5;
    49. 

  49.     /// Mode corresponding to fopen "w+" mode.
    50. 

  50.     pub const RW_TRUNC: usize = 6;
    51. 

  51.     /// Mode corresponding to fopen "w+b" mode.
    52. 

  52.     pub const RW_TRUNC_BINARY: usize = 7;
    53. 

  53.     /// Mode corresponding to fopen "a" mode.
    54. 

  54.     pub const W_APPEND: usize = 8;
    55. 

  55.     /// Mode corresponding to fopen "ab" mode.
    56. 

  56.     pub const W_APPEND_BINARY: usize = 9;
    57. 

  57.     /// Mode corresponding to fopen "a+" mode.
    58. 

  58.     pub const RW_APPEND: usize = 10;
    59. 

  59.     /// Mode corresponding to fopen "a+b" mode.
    60. 

  60.     pub const RW_APPEND_BINARY: usize = 11;
    61. 

  61. }
    62.