//! Semihosting operations
//!
//! The details of what each operation does can be found in the
//! [ARM Semihosting Specification](https://github.com/ARM-software/abi-aa/blob/main/semihosting/semihosting.rst#semihosting-operations).
//! The RISC-V Semihosting operations are identiacal to ARM's, so their
//! documentation is sufficient.

#![allow(missing_docs)]

pub const CLOCK: usize = 0x10;
pub const CLOSE: usize = 0x02;
pub const ELAPSED: usize = 0x30;
pub const ERRNO: usize = 0x13;
pub const FLEN: usize = 0x0c;
pub const GET_CMDLINE: usize = 0x15;
pub const HEAPINFO: usize = 0x16;
pub const ISERROR: usize = 0x08;
pub const ISTTY: usize = 0x09;
pub const OPEN: usize = 0x01;
pub const READ: usize = 0x06;
pub const READC: usize = 0x07;
pub const REMOVE: usize = 0x0e;
pub const RENAME: usize = 0x0f;
pub const SEEK: usize = 0x0a;
pub const SYSTEM: usize = 0x12;
pub const TICKFREQ: usize = 0x31;
pub const TIME: usize = 0x11;
pub const TMPNAM: usize = 0x0d;
pub const WRITE0: usize = 0x04;
pub const WRITE: usize = 0x05;
pub const WRITEC: usize = 0x03;
pub const ENTER_SVC: usize = 0x17;
pub const REPORT_EXCEPTION: usize = 0x18;

/// Values for the mode parameter of the OPEN syscall.
pub mod open {
    /// Mode corresponding to fopen "r" mode.
    pub const R: usize = 0;
    /// Mode corresponding to fopen "rb" mode.
    pub const R_BINARY: usize = 1;
    /// Mode corresponding to fopen "r+" mode.
    pub const RW: usize = 2;
    /// Mode corresponding to fopen "r+b" mode.
    pub const RW_BINARY: usize = 3;
    /// Mode corresponding to fopen "w" mode.
    pub const W_TRUNC: usize = 4;
    /// Mode corresponding to fopen "wb" mode.
    pub const W_TRUNC_BINARY: usize = 5;
    /// Mode corresponding to fopen "w+" mode.
    pub const RW_TRUNC: usize = 6;
    /// Mode corresponding to fopen "w+b" mode.
    pub const RW_TRUNC_BINARY: usize = 7;
    /// Mode corresponding to fopen "a" mode.
    pub const W_APPEND: usize = 8;
    /// Mode corresponding to fopen "ab" mode.
    pub const W_APPEND_BINARY: usize = 9;
    /// Mode corresponding to fopen "a+" mode.
    pub const RW_APPEND: usize = 10;
    /// Mode corresponding to fopen "a+b" mode.
    pub const RW_APPEND_BINARY: usize = 11;
}