// Postfix increment in expression statement. Fails to compile.
// because it is evaluated as <:(hl++), which is not a permitted expression statement.
// Also because of precedence, it also currently implies a higher-bit increment followed by bit-masking.
<:hl++;

// Postfix increment in assignment right-hand side. Also fails.
// Similar to above parse, but different restrictions.
// It tries to decompose <:(hl++) into:
// a = hl; a = <:a; hl++; which will not work.
a = <:hl++;

++<:hl; // Prefix increment. Works fine.
a = ++<:hl; // Prefix increment. Works fine.

// becomes a = l; due to register decomposition.
a = <:hl;
// take the low-byte of an address literal.
a = <:&myaddress;
 // constant indexing, so the address can be folded at compile-time, and then <: masks off
a = <:word_array[0]
// take the low-byte of some indirected larger-than-byte thing (if the platform were to allow it)
foo = <:*term;