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/// The struct that represents an A64 nop instruction that can be encoded.
///
/// NOP
/// +-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
/// | 31 30 29 28 | 27 26 25 24 | 23 22 21 20 | 19 18 17 16 | 15 14 13 12 | 11 10 09 08 | 07 06 05 04 | 03 02 01 00 |
/// | 1 1 0 1 0 1 0 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 1 1 1 1 1 |
/// +-------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
///
pub struct Nop;
impl Nop {
/// NOP
/// https://developer.arm.com/documentation/ddi0602/2022-03/Base-Instructions/NOP--No-Operation-
pub fn nop() -> Self {
Self {}
}
}
impl From<Nop> for u32 {
/// Convert an instruction into a 32-bit value.
fn from(_inst: Nop) -> Self {
0b11010101000000110010000000011111
}
}
impl From<Nop> for [u8; 4] {
/// Convert an instruction into a 4 byte array.
fn from(inst: Nop) -> [u8; 4] {
let result: u32 = inst.into();
result.to_le_bytes()
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_nop() {
let inst = Nop::nop();
let result: u32 = inst.into();
assert_eq!(0xd503201f, result);
}
}
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