MG2A for MS-DOS

[William Phillips]

After weeks of anticipation, I finally got the MS-DOS source for mg2a, and
gleefully compiled it.

Unfortunately, it doesn't work.

I compiled it first with Turbo C 1.5, which produced a few strange warnings
(mostly "possible use of <whatever> before definition" or words to that effect
-- and invariably incorrect), but produced an executable -- which bombed (had to
hit the big red switch to reboot).

Next, I tried Quick C 1.0, since I don't have MSC, which compiled without any
problems (after I put #ifndef MSC / #endif around the signal() function); it
also bombed, in exactly the same manner.  This led me to believe there was a
bug in the source :-).  I added a /Zr to check pointer usage at runtime, and
sure enough it hit that right away.  I put in some printfs, and now have
narrowed the problem down to a problem with a line in the function modeline()
in display.c, namely:

            n += vtputs(bp->b_modes[mode]->p_name);

...so far I haven't been able to pin down the problem precisely, but it's
there somewhere.

(The runtime error message was R6013 -- "Invalid far pointer reference"
according to the manual, though the message on the screen was slightly
different wording -- same meaning, however.)

Any suggestions?

			--bill

-- 
William Phillips                 {allegra,philabs,cmcl2}!phri\
Big Electric Cat Public Unix           {bellcore,cmcl2}!cucard!dasys1!wfp
New York, NY, USA                !!! JUST SAY "NO" TO OS/2 !!!