Re: Good example of C and MACRO

On Fri, 28 Nov 2008 22:39:02 UTC,
koehler@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (Bob Koehler) wrote:

In article <176uZD2KcidF-pn2-zSoxvSJxPRqB@xxxxxxxxxxxxxxxx>, "Bob Eager" <rde42@xxxxxxxxxxx> writes:

I programmed PDP-11 stuff for years, and never actually noticed the lack
of a byte subtract...! Never needed it I guess... I may have been too
ashamed to say so earlier...

Yeah, but did anybody evfer actually find a use for the MARK
instruction? The best I could do was to push MARK on the stack
and then remeber where I'd left it.

Not in the least bit surprising that MARK was the only user mode
instruction that wasn't needed in compatability mode (RSX-11M/M+
don't use it and thier compilers don't generate it).

I tried to use MARK once when I was writing a compiler. I gave up in the
end!

--
Bob Eager
Use the BIG mirror service in the UK:
http://www.mirrorservice.org

.

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