Add emuext pragma and associated instructions. This provides two emulator specific instructions ("log" and "debug") enabled by the "emuext" pragma. This is from a patch provided by tim Lindner <tlindner@macmess.org>. From Tim's submission: ---- I stole the whole patch from Erik Gavriluk. I hope he doesn't mind. :) The two instructions are "debug" and "log". They are enabled with pragmas. I also added them to the manual. Hopefully all is well. ---- Said Erik Gavriluk <erik@bombfactory.com> in response: ...happy to see them picked up in mainline (if you choose to do so)....

all:
	rm -f manual/*.pdf manual/*.html
	docbook2html -o manual manual.docbook.sgml
	docbook2html -u manual.docbook.sgml && mv manual.docbook.html manual/manual.html
	docbook2pdf -u manual.docbook.sgml && mv manual.docbook.pdf manual/manual.pdf
	rm -f manual.docbook.html

maint:
	hg rm --force manual/* || true
	$(MAKE) all
	hg add manual/*