Re: Replacing Tailgunner ROMs

Looking back, I'm not really sure why I needed to pull out pin 21 tie it
to +5v. Maybe it was to get a different type of eprom to work? I've
seen a lot of games do the same from time to time such as Omega Race,
Gorf, etc.
My original Tailgunner board had the two masked roms in them, not the
daughterboard.

Thanks for the helpful info! Let us know (Carlos) if you get that board
working. The first time I remember playing an upright Tailgunner was at
a Howard Johnsons on the way to Disney World in 1980. I actually
thought the game was kinda boring then, but now it's one of my favorites
in my collection.

Matt

On 1/22/2013 9:08 PM, William Boucher wrote:
> Carlos, I flashed two new TMS2532JL chips using your two files .6RS
> and .6U and plugged them into a known good CCPU (my Rip Off board set)
> at sockets T7 & P7and fired it up and it works perfectly. I tried the
> board in my Star Castle and it looks great. I could not play it of
> course because SC doesn't have the proper controls. By the way, the
> files that you sent to me are named for the wrong pair of sockets.
> They do not run in U7 & R7.
> The chip enable (PD/PGM input at pin 20) for the chip is tied low on
> the normal unhacked CCPU so it's good to go as well. It is not
> required to pull out pin 21 and connect it to +5V. According to the
> datasheet, that would reduce the chip power usage but not necessarily
> disable the outputs. I tried it both ways just for fun and the game
> worked fine both ways. I would not bother to change pin 21. If
> someone knows a good reason why it should be done, please correct me.
> Now, to make the chips work in locations U7 & R7 where your CCPU
> board has sockets, I just had to make new files by swapping the upper
> and lower half of the data in each chip. I flashed a couple of new
> chips, plugged them into U7 and R7 and it worked great.
> I was going to attach the new rom files for U7 & R7 to this email but
> I don't want someone crabbing at me about copyright violations or
> something so if anyone wants them, just email me privately and I'll
> send them to you.
> Or, you can do like Matthew suggested and make your own two 4k files
> from the original four 2k files thusly...
> C:>copy /b tg.r7 + tg.p7 tg4k_odd.r7 <enter>
> and
> C:>copy /b tg.u7 + tg.t7 tg4keven.u7 <enter>
> William Boucher
> http://www.biltronix.com
>
> ----- Original Message -----
> *From:* Carlos Rubio <mailto:csrubio@gmail.com>
> *To:* vectorlist@vectorlist.org <mailto:vectorlist@vectorlist.org>
> *Sent:* Friday, January 18, 2013 7:36 PM
> *Subject:* Re: VECTOR: Replacing Tailgunner ROMs
>
> Thanks Matt.
>
> On my board I have ribbon cables from the daughter board plugged
> into R7 and U7 (these are labeled 6RS and 6 U on the board). P7
> and T7 are unpopulated on my board, so I'll have to install
> sockets to follow your directions.
>
> However, I did get a hold of rom images today that are labeled 6RS
> and 6U. Can I use those?
>
> Carlos
>
>
> On Fri, Jan 18, 2013 at 6:43 PM, Matthew Rossiter
> <matt@rossiters.com <mailto:matt@rossiters.com>> wrote:
>
> You can download a copy of WinRomident to verify the rom names.
>
> P70 = P7
> P71 = R7
> T70 = T7
> T71 = U7
>
> So...
>
> c:\copy /b tgunner.p70 + tgunner.p71 <whatever file name you
> want> - put in P7 socket
>
> then
>
> c:\copy /b tgunner.t70 + tgunner.t71 <whatever file name you
> want> - put in T7 socket
>
> pull up pin 21 of your 2532 and solder a wire to +5v (pin24) -
> I always use TMS2532's
>
> Should work. I've done the same thing for War of the Worlds
> since it works in Star Castle.
>
> Matt
>
>
>
>
> On 1/18/2013 10:25 AM, John Robertson wrote:
>
> Carlos Rubio wrote:
>
> Hello,
>
> I'm trying to convert a Tailgunner CCPU to accept two
> 2532s instead of the daughter board with the eight
> 2708s. I plan on following Matt Rossiter's procedure
> as described here:
>
> http://www.vectorlist.org/Vectorlist/2004/12/0000.html
>
> My first problem is that I can't find the ROMs as
> described in Matt's instructions. What I have are
> four files named tgunner.p70, tgunner.p71, tgunner.t70
> and tgunner.t71.
>
> Can someone tell me how these should be combined?
> Should it be tgunner.p70 + tgunner.p71 and
> tgunner.t70 + tgunner.t71, or tgunner.p70 +
> tgunner.t70 and tgunner.p71 + tgunner.t71?
>
> Thanks,
>
> Carlos
>
> I've sent Carlos my two archive files of Tailgunner. One
> appears to be four 2K X 8 files with a readme, the second
> is two 4K X 8 which may be ROM images.
>
> I just don't know - but he is welcome to play with them
> and report back!
>
> John :-#)#
>
>
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Received on Thu Jan 24 17:07:34 2013