The immediate character is `$' for Unix compatibility, not `#' as DEC writes it.
The indirect character is `*' for Unix compatibility, not `@' as DEC writes it.
The displacement sizing character is ``' (an accent grave) for
Unix compatibility, not `^' as DEC writes it. The letter
preceding ``' may have either case. `G' is not
understood, but all other letters (
b i l s w) are understood.
Register names understood are
r0 r1 r2 ... r15 ap fp sp
pc. Upper and lower case letters are equivalent.
Any expression is permitted in an operand. Operands are comma separated.