C-64 2-button joysticks?
afn04314ATafn.org>@p0.f0.n0.z0.fidonet.org
Commodore 64? Specifically something that would work with games like Contra
and Spy Hunter. I specifically remember Contra being a real pain on the C-64
because you had to use the spacebar to jump.
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Etienne von Wettingfeld
> Were there ever any two (independent) button joysticks marketed for the
> Commodore 64? Specifically something that would work with games like
> Contra and Spy Hunter. I specifically remember Contra being a real pain on
> the C-64 because you had to use the spacebar to jump.
I placed the second joystick on the floor and used my foot to press fire
which acted like the spacebar (if the joystick was plugged in to port 1).
This not only helped at playing Spyhunter (special weapon), but also Green
Beret (special weapon) and Revs (quicker steering).
Some time ago I bought this footpedal thingy on eBay. Basicly it is a
'joystick' without the stick and 3 programmable fire buttons. Let's say you
program 1 button as 'joystick up' and 1 button as 'joystick down'. Now you
can play Revs with an accelerator- and brake paddle.
Although I must say I have not yet tried it.
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Etienne von Wettingfeld [SuSE 9.1 Linux]
Cameron Kaiser
>Were there ever any two (independent) button joysticks marketed for the
>Commodore 64? Specifically something that would work with games like Contra
>and Spy Hunter. I specifically remember Contra being a real pain on the C-64
>because you had to use the spacebar to jump.
The 64GS had a two-button joystick manufactured for it, and some GS games
(which will also work just fine on PAL 64s and many NTSC 64s) can utilize
it.
http://www.floodgap.com/retrobits/ckb/secret/ultimax.html
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Snogpitch
looking for replacements for many years now. It would be nice to know
another system used the same kind.
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Snogpitch
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On 6/23/04 10:33 AM, in article 40d9936c$0$11901$45be...@newscene.com,
Poeta®
Bye!
PoetaŽ
Leo
configuration. To use it reliably you will need to open it up and cut the
wire from joy button 2 and attach it to joy button 1. Then you will have
both buttons working. I dont think there is another line to make 2 different
joy buttons for seperate fire buttons. At least I didnt see one in the specs
I looked at.
I believe the same thing would apply with the genesis/mega drive gamepads
but I havent tried these personally. You could modify your C= by opening it
up and running a wire from joy stick 2's joy button over to an non used line
on joy stick 1's ports and then connecting the line that you previously cut
from the gamepad to that port. I think that would give you 2 seperate
working fire buttons.In order to use the same feature for joyport2 you will
need to do the same thing for that port. That way if a game wants you to use
joy port 2 for movement you will still have both fire buttons working. Im
going to have to try my theory here and see if it works. I believe though if
you use one of the pot ay or pot by lines you would be ok. I dont think you
will be able to use a mouse properly after that though.
Leo
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"PoetaŽ" <poeta_mx5N...@hotmail.com> wrote in message
news:40DA2A5F...@hotmail.com...
Cameron Kaiser
>Were these compatible with the Atari 7800 two button joysticks? I've been
>looking for replacements for many years now. It would be nice to know
>another system used the same kind.
I don't know the specifications of the 7800 joysticks, but I would doubt it.
John
"Etienne von Wettingfeld" <eti...@xs4none.nl.invalid> wrote in message
news:40d950b8$0$559$e4fe...@news.xs4all.nl...
I keep thinking about modifying a C64 to have a plug next to the joystick
plug that will accept a simple switch that sets off the space bar, so that I
could install a second button on a joystick.
It occurs to me there might be a spare line on the joystick port itself that
could do the job?
Dr. Bruce R. McFarling
The only "spare" lines are the two paddle inputs, POTX and POTY. The
resistence is checked frequently by the SID, with the values in SID
registers $19 and $1A. AFAIK that is either port A or port B based on
how you set up the port date direction registers. If you had a
resister bank that was read accurately for the top "X" bits, you could
"X" extra bits of information by switching a resister or resisters in
and out of the line. But reading the extra information would, of
course, by roll your own.
What the PRG says is:
"POTX,POTY (Pins 24,23)
These pins are inputs to the A/D converters used to digitize the posi-
tion of potentiometers. The conversion process is based on the time
con-
stant of a capacitor tied from the POT pin to ground, charged by a
potentiometer tied from the POT pin to +5 volts. The component values
are
determined by:
RC = 4.7E-4
Where R is the maximum resistance of the pot and C is the capacitor.
The larger the capacitor, the smaller the POT value jitter. The recom-
mended values for R and C are 470 komhs and 1000 pF. Note that a
separate
pot and cap are required for each POT pin."
and a