- curly braces (
{ and }) are used to denote a fixed set of options that can be
chosen from usually separated by commas
{a,b} would mean: in this location, must either be "a" or be "b"{a} would mean: in this location, must be "a"
numeric represents i8, u8, i16, u16, f32, i32, u32, f64, i64, and u64
- often used as
{numeric} to mean: in this location, must be one of the numeric data types
- an
f, an i, or a u can also be used in place of numeric in places where the data
size can be inferred (usually from the operands of an instruction)
integer represents i8, u8, i16, u16, i32, u32, i64, and u64float represents f32, or f64