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/// This is commonly the top-most bit in the encoding of the instruction, and
/// represents whether register operands should be treated as 64-bit registers
/// or 32-bit registers.
pub enum Sf {
Sf32 = 0b0,
Sf64 = 0b1
}
/// A convenience function so that we can convert the number of bits of an
/// register operand directly into an Sf enum variant.
impl From<u8> for Sf {
fn from(num_bits: u8) -> Self {
match num_bits {
64 => Sf::Sf64,
32 => Sf::Sf32,
_ => panic!("Invalid number of bits: {}", num_bits)
}
}
}
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