Struct TrapFrame 

#[repr(C)]
pub struct TrapFrame {

    pub ra: usize,
    pub t0: usize,
    pub t1: usize,
    pub t2: usize,
    pub t3: usize,
    pub t4: usize,
    pub t5: usize,
    pub t6: usize,
    pub a0: usize,
    pub a1: usize,
    pub a2: usize,
    pub a3: usize,
    pub a4: usize,
    pub a5: usize,
    pub a6: usize,
    pub a7: usize,
}

Registers saved in trap handler

Fields

ra: usize

x1: return address, stores the address to return to after a function call or interrupt.

t0: usize

x5: temporary register t0, used for intermediate values.

t1: usize

x6: temporary register t1, used for intermediate values.

t2: usize

x7: temporary register t2, used for intermediate values.

t3: usize

x28: temporary register t3, used for intermediate values.

t4: usize

x29: temporary register t4, used for intermediate values.

t5: usize

x30: temporary register t5, used for intermediate values.

t6: usize

x31: temporary register t6, used for intermediate values.

a0: usize

x10: argument register a0. Used to pass the first argument to a function.

a1: usize

x11: argument register a1. Used to pass the second argument to a function.

a2: usize

x12: argument register a2. Used to pass the third argument to a function.

a3: usize

x13: argument register a3. Used to pass the fourth argument to a function.

a4: usize

x14: argument register a4. Used to pass the fifth argument to a function.

a5: usize

x15: argument register a5. Used to pass the sixth argument to a function.

a6: usize

x16: argument register a6. Used to pass the seventh argument to a function.

a7: usize

x17: argument register a7. Used to pass the eighth argument to a function.

Trait Implementations

impl Debug for TrapFrame

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.