Fix psh/pul to not accept the stack pointer as a valid argument Don't allow "pshs s", "puls s", "pshu u", or "pulu u" - none of those are valid on the 6809 (not encodable) so they need to throw an error.

\.exe$
\.o$
\.d$
\.a$
~$
\.orig$
/lwbasic$
/lwlink$
/lwobjdump$
/lwar$
/lwasm$
/lwcc/lwcc$
/lwcc/lwcpp$

# for windows
\.suo$
\.sdf$
\.opensdf$
\Debug$
\Release$