Get the next word in the input stream as a hex
single-number literal. (Adopted from Open Firmware.)
: H# ( "hexnumber" -- n ) \ Simplified for easy porting.
0 0 BL WORD COUNT
BASE @ >R HEX >NUMBER R> BASE !
ABORT" Not Hex " 2DROP ( n)
STATE @ IF POSTPONE LITERAL THEN
toolbelt immediate primitive