Hi,
    Here is what I am testing now - which fails on
emulation (no HALT).

------------------------------
; pass in T_count gives nice possible delays
; -----------------
C_sleepy
; -----------------
  set1 $108, 1 ; enable interrupt?
  ld $111 ; timer 0 = 16 bit
  and #$F0
  or  #$01
  st $111
  ld T_count
  st b
.lp:
  clr1 $110, 4 ; stop timer
  mov #$05, $115 ; set for a 400th of a sec or so
  mov #$DC, $113
  set1 $110, 4 ; start it
  set1 pcon, 0 ; halt CPU
  dbnz b, .lp
  clr1 $110,4 ; stop timer
  ret
------------------------------

--- Soeren Gust <sgust@...>
wrote:

>
> A long time ago when I wrote Alienfighter I solved
> this problem by doing
> a speed calibration at the start of the program.
> That way I somehow got
> a stable framerate in RC clock mode. Don't ask me
> about details, too much
> time has passed, but you can still get the source
> code at my homepage
> under
>
<http://soeren.informationstheater.de/vm/alienfighter.html>.
>
> Soeren

     Thanks!  I am looking at that now to see what I
can do with it.

Harry




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On Wed, Aug 04, 2004 at 05:30:49PM -0000, harry_dodgson wrote:
> Hi,
>
>     Is there an easy way to get a fast stable timer?
> Right now I time everything in my games on the
> 1/2 second timer.  I do all computing at high
> speed and drop it to slow speed for busy-wait loops
> to save a little power.  I tried using HALT, but the
> 1/2 second response is too slow.

A long time ago when I wrote Alienfighter I solved this problem by doing
a speed calibration at the start of the program. That way I somehow got
a stable framerate in RC clock mode. Don't ask me about details, too much
time has passed, but you can still get the source code at my homepage
under <http://soeren.informationstheater.de/vm/alienfighter.html>.

Soeren

Hello,

  >Is there an easy way to get a fast stable timer?
>Right now I time everything in my games on the
>1/2 second timer.  I do all computing at high
>speed and drop it to slow speed for busy-wait loops
>to save a little power.  I tried using HALT, but the
>1/2 second response is too slow.
[...]

I haven't done any VM programming since a while, but there's
definitively an high-res timer available. Check the available
public docs.

What you may be experiencing (and what I also experienced) is
that done of the available free emulator support timing/HALT
properly.

I have released 4 games and all of them were properly timed
but are running too fast on emulators, while they're running
good on a Visual Memory.

-Omar

Hi,

     Is there an easy way to get a fast stable timer?
Right now I time everything in my games on the
1/2 second timer.  I do all computing at high
speed and drop it to slow speed for busy-wait loops
to save a little power.  I tried using HALT, but the
1/2 second response is too slow.

     On other systems (Lynx, NGPC), I do busy wait
off the vertical refresh clock, but I don't see
access to that on a VMU.

     A timer with say 1/10th second resolution would
also allow my game speedup progression to be more
gentle.  It is rather abrupt going from 1 second delay
to 1/2 second between waves.

Harry

Hi,

     You need:
1) A VMU emulator and/or a way to get your
    program to a real VMU.
2) A VMU assembler.
3) Optionally, VMUscript for a slightly higher level
    programming language.
4) Example source code.

All the software is available at no cost from the
'net.
If you can connect to the 'net from your Dreamcast,
there are even ways of getting your game onto a VMU
for
no additional cost.

Harry

--- DCstation <zoneroms@...> wrote:

>
> if i want to build a game in VMU, what i need to do
> ? and what is the languages ?
>




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if i want to build a game in VMU, what i need to do ? and what is the languages ?

Hi,

  -ignore last reply-  *wishes tabs wouldn't do that*

     I just checked out the site and it looks like mine
is the only file posted there?  Will I be able to
update it easily?

Harry

--- jerickorn <jerickorn@...> wrote:

> --- In vmu-dev@yahoogroups.com, Harry Dodgson
> <harry_dodgson@y...>
> wrote:
> > Hi,
> >
> >     It has 1 game - a derivative of "Space Zap",
> it
> > emulates RPG dice rolling combinations, it has an
> > animated hourglass, it converts EDT time to Swatch
> > .beats, and it has a few graphics demos that I
> used
> > to test various subroutines.  Plans include adding
> > features like egg timers, alarm clocks, a couple
> more
> > mini-games, and sounds/music.
> >
> > Harry
> >
> > --- jerickorn <jerickorn@y...> wrote:
> >
> > [snip]
> >
> > > what does the vmu demo do? what is this all
> about.
> > > keep up the good
> > > work!
> >
> > [snip]
> Harry can i have your permmision to upload this
> file to this
> website
>
http://www.dcevolution.netfirms.com/image_vmutool.shtml
> they are compiling all the vmu save,games etc. into
> for everybody to
> burn test out in their vmu. head out and check out
> the website its
> also in dcemulation.com
> >
[snip]




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Hi,


--- jerickorn <jerickorn@...> wrote:

> --- In vmu-dev@yahoogroups.com, Harry Dodgson
> <harry_dodgson@y...>
> wrote:
> > Hi,
> >
> >     It has 1 game - a derivative of "Space Zap",
> it
> > emulates RPG dice rolling combinations, it has an
> > animated hourglass, it converts EDT time to Swatch
> > .beats, and it has a few graphics demos that I
> used
> > to test various subroutines.  Plans include adding
> > features like egg timers, alarm clocks, a couple
> more
> > mini-games, and sounds/music.
> >
> > Harry
> >
> > --- jerickorn <jerickorn@y...> wrote:
> >
> > [snip]
> >
> > > what does the vmu demo do? what is this all
> about.
> > > keep up the good
> > > work!
> >
> > [snip]
> > Harry can i have your permmision to upload this
> file to this
> website
>
http://www.dcevolution.netfirms.com/image_vmutool.shtml
> they are compiling all the vmu save,games etc. into
> for everybody to
> burn test out in their vmu. head out and check out
> the website its
> also in dcemulation.com
> >
> >
> >
> > __________________________________
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Hi,

     It has 1 game - a derivative of "Space Zap", it
emulates RPG dice rolling combinations, it has an
animated hourglass, it converts EDT time to Swatch
.beats, and it has a few graphics demos that I used
to test various subroutines.  Plans include adding
features like egg timers, alarm clocks, a couple more
mini-games, and sounds/music.

Harry

--- jerickorn <jerickorn@...> wrote:

[snip]

> what does the vmu demo do? what is this all about.
> keep up the good
> work!

[snip]




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Hi,

     Here is the latest version of my VMU demo.
Use up/down to select between the different modules -
A to start, B to exit.  It's a bit incomplete now
since VMUscript crashes when I add anything else to
the source.  When I get done converting VMUscript to
C, I'll be able to add more features (like sound and
timezone settings) to the demos.

Harry



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Hi again,

     I compiled it with DJGPP v2.02 and for some reason
it doesn't like a label as the first line of an
included file.  That never happened before.  Must be
something strange in the compiler.  Any thoughts on
this?

     I also added 1 to the error line reported since
most editors start numbering from 1, not 0.

Harry





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Hi,

     Thanks!  I compiled it under Solaris and it
successfully assembled the code that caused
problems.

Harry

--- Soeren Gust <sgust@...>
wrote:

[snip]
>
> As far as I know VMUASM is just the normal aslc86k
> from Marcus Comstedt
> compiled for DOS. Version 1.9 of this has some
> problems if you use macros.
>
[snip]




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On Tue, Jul 20, 2004 at 06:59:15PM -0000, harry_dodgson wrote:
>     Has anyone tried to build something significant with VMUscript
> or VMUASM?  As my .S source file approaches 40K, my Windoze systems
> keep crashing.  Sometimes it compiles okay and then assembles okay -
> most times it doesn't.  It is getting annoying.  You would think in
> this age of gigabyte RAM that I could create a 24K VMU file without
> rebooting the system frequently.

As far as I know VMUASM is just the normal aslc86k from Marcus Comstedt
compiled for DOS. Version 1.9 of this has some problems if you use macros.


>     Is there a VMU assembler available for Solaris or MacOS anywhere?

The sourcecode for aslc86k can be downloaded at Marcus website at
<http://mc.pp.se/dc/sw.html> as VMS Assembler. A patch to fix the macro
problem is below

Soeren

diff -u aslc86k-1.9.orig/macro.c aslc86k-1.9/macro.c
--- aslc86k-1.9.orig/macro.c Thu Nov 11 23:47:33 1999
+++ aslc86k-1.9/macro.c Tue Oct 17 15:34:31 2000
@@ -41,9 +41,9 @@
    nummacargs++;
    if(macargbufuse+l>=macargbufmax)
      if(macargbuf)
-      macargbuf=realloc(macargbuf, macargbufmax=min(macargbufmax<<1,
macargbufuse+l+1));
+      macargbuf=realloc(macargbuf, macargbufmax=macargbufuse+l+1);
      else
-      macargbuf=malloc(macargbufmax=min(256, l+1));
+      macargbuf=malloc(macargbufmax=l+1);
    if(!macargbuf) {
      fprintf(stderr, "Fatal: Out of memory!\n");
      exit(2);

Hi,

     Has anyone tried to build something significant with VMUscript
or VMUASM?  As my .S source file approaches 40K, my Windoze systems
keep crashing.  Sometimes it compiles okay and then assembles okay -
most times it doesn't.  It is getting annoying.  You would think in
this age of gigabyte RAM that I could create a 24K VMU file without
rebooting the system frequently.

     Is there a VMU assembler available for Solaris or MacOS anywhere?

Harry

Hi,

     I downloaded the source Jul 6th, 2004 and am working on
converting it to C.  Why, you may ask...

1) It runs really slow compared to the VMU assembler
2) There are several annoyances in it
3) VMU Assembly code is tedious
4) Because I can
5) I'm working on a VMU game too

Harry


--- In vmu-dev@yahoogroups.com, "M. Jumper" <mj98765@y...> wrote:
> It's written with PowerBASIC 3.5
> I'll post the source in the group files.
>
> --- Miles Raymond <reukiodo@y...> wrote:
> > I think nothing bad about BASIC (what version did
> > you use?) and I think source would really help us
> > with a rewrite in C.  If only I could get $@^@#ing
> > KOS to compile... grr...
> >

Step one copy to nexus from PC
step two insert nexus in to dreamcast controler
step three using the dreamcast copy the files across VMU

--- Paul Kratt <sblur@...> wrote: > Someone else wrote:
>
> >     SO debating weather or not I should try the VMU2PC port
> suggested by
> >     John Maushammer.  Has anyone tried it?  Is there a better way
> to
> >     upload programs into the VMU?
>
> If you're willing to spend another 20, you may want to try the Double
>
> Power. A few places sell it, Lik Sang is one of them:
> http://www.lik-sang.com/info.php?products_id=52&likref=froogle
>
> It's made by the same company that makes the Nexus cards, and uses
> the
> exact same software as the Nexus Cards, (make sure you're using the
> latest software) it even uses the same cable as the Nexus cards. It's
>
> basicly a little device that you can plug up to two memory cards at
> once
> of any type into, and transfer files on to and off of them.
>
> Aside from that, I believe someone wrote a tool that you can burn to
> a
> CD and run on your DC to copy protected files between VMU's. You
> might
> want to look for that if that's your only problem.
>
>
>
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>
>
>
>
>

=====
Later ...

rednuht@...
-+-..=|<[{(_"!"_)}]>|=..-+-






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Someone else wrote:

>     SO debating weather or not I should try the VMU2PC port suggested by
>     John Maushammer.  Has anyone tried it?  Is there a better way to
>     upload programs into the VMU?

If you're willing to spend another 20, you may want to try the Double
Power. A few places sell it, Lik Sang is one of them:
http://www.lik-sang.com/info.php?products_id=52&likref=froogle

It's made by the same company that makes the Nexus cards, and uses the
exact same software as the Nexus Cards, (make sure you're using the
latest software) it even uses the same cable as the Nexus cards. It's
basicly a little device that you can plug up to two memory cards at once
of any type into, and transfer files on to and off of them.

Aside from that, I believe someone wrote a tool that you can burn to a
CD and run on your DC to copy protected files between VMU's. You might
want to look for that if that's your only problem.

Hi-

Welcome!

I don't have any experience with the nexus card, but I thought that was
a valid way of doing the transfer. Maybe someone else can help?

My VMU2PC program is a bit dated - it was developed under a 366MHz PII
running windows 98. If you've got an old machine similar to this, then
I'd say it's a good way to go. Otherwise, you may have some problems.
The program has some processor-speed specific timing loops, so a 2 GHz
machine will be too fast. (I tried to do it hardware-speed independent,
but I couldn't get the microsecond precision I needed. I could have
done a calibration loop at the beginning (like turbo C does), but I
didn't) Also, Windows 98 is pretty close to DOS - any NT-based OS
probably won't let you play with the hardware at a low level like I do
(I think there is some program that does this; it's probably been
written for PIC programmers). And, NT may mess with the timing some if
it gets a higher-level interrupt.

Even with my original system, the program wasn't perfect. It took some
chicken bones and mystical incantations to get it to work, but once I
got into a groove (something like unplug, plug, then transfer), it was
reliable.

Good luck!

- John


On Jun 27, 2004, at 11:25 AM, Trabin9 wrote:

> Hello I,
>
>  My name is Martin Lim.  I am new to VMU programming.  Still reading
>  up on VMU development. Been reading:
>
> http://mc.pp.se/dc/
> http://www.maushammer.com/vmu.html
> http://www.deco.franken.de/myfiles/myfiles.html
>
>
>  I have bought a nexus memory card.  Seems to copy information out of
>  the memory card okay but can't copy stuff into the VMU.  So I have no
>  way of copying the programs I write into the VMU.
>
>  SO debating weather or not I should try the VMU2PC port suggested by
>  John Maushammer.  Has anyone tried it?  Is there a better way to
>  upload programs into the VMU?
>
>  martin
>
>  --- vmu-dev@yahoogroups.com wrote:
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>
> --------------------------------------------------------------------~-
> >
>  >
>  >
>  > There is 1 message in this issue.
>  >
>  > Topics in this digest:
>  >
>  >       1. Re: Keep this board alive!
>  >            From: "jason_the_echidna" <jason_the_echidna@...>
>  >
>  >
>  >
>
> _______________________________________________________________________
> _
>  >
>
> _______________________________________________________________________
> _
>  >
>  > Message: 1
>  >    Date: Sat, 26 Jun 2004 13:00:07 -0000
>  >    From: "jason_the_echidna" <jason_the_echidna@...>
>  > Subject: Re: Keep this board alive!
>  >
>  > Whee! ^_^' I am in yet another place which is dieing. In any case,
>  > I
>  > suck at this. I tryed to make a platformer, but couldn't stop
>  > players
>  > from falling through the floor. I tried to make an overhead game,
>  > but
>  > it was glitchyer then the original Zelda. I gave up and don't even
>  > have that crap anymore. What to do, what to do... Maybe I dream too
>  > high.
>  >
>  >
>  >
>  >
>
> _______________________________________________________________________
> _
>  >
>
> _______________________________________________________________________
> _
>  >
>  >
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>  > unsubscribe:  vmu-dev-unsubscribe@eGroups.com
>  >     archive:  http://www.egroups.com/group/vmu-dev/
>  >         faq:  http://vmudev.dcemulation.com/faq.html
>  >
>
> -----------------------------------------------------------------------
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>  > Yahoo! Groups Links
>  >
>  >
>  >
>  > 
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Hello I,

My name is Martin Lim.  I am new to VMU programming.  Still reading
up on VMU development. Been reading:

http://mc.pp.se/dc/
http://www.maushammer.com/vmu.html
http://www.deco.franken.de/myfiles/myfiles.html


I have bought a nexus memory card.  Seems to copy information out of
the memory card okay but can't copy stuff into the VMU.  So I have no
way of copying the programs I write into the VMU.

SO debating weather or not I should try the VMU2PC port suggested by
John Maushammer.  Has anyone tried it?  Is there a better way to
upload programs into the VMU?

martin

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>
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>
>       1. Re: Keep this board alive!
>            From: "jason_the_echidna" <jason_the_echidna@...>
>
>
>
________________________________________________________________________
>
________________________________________________________________________
>
> Message: 1
>    Date: Sat, 26 Jun 2004 13:00:07 -0000
>    From: "jason_the_echidna" <jason_the_echidna@...>
> Subject: Re: Keep this board alive!
>
> Whee! ^_^' I am in yet another place which is dieing. In any case,
> I
> suck at this. I tryed to make a platformer, but couldn't stop
> players
> from falling through the floor. I tried to make an overhead game,
> but
> it was glitchyer then the original Zelda. I gave up and don't even
> have that crap anymore. What to do, what to do... Maybe I dream too
> high.
>
>
>
>
________________________________________________________________________
>
________________________________________________________________________
>
>
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Whee! ^_^' I am in yet another place which is dieing. In any case, I
suck at this. I tryed to make a platformer, but couldn't stop players
from falling through the floor. I tried to make an overhead game, but
it was glitchyer then the original Zelda. I gave up and don't even
have that crap anymore. What to do, what to do... Maybe I dream too high.

mrchrispus wrote:
> Ahhhh!!!!! Let's keep this board alive! Kickin' it into high gear!!!
>
>
>
>
>        post:  vmu-dev@eGroups.com
> unsubscribe:  vmu-dev-unsubscribe@eGroups.com
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> Yahoo! Groups Links
>
>
>
>
>

Ahhhh!!!!! Let's keep this board alive! Kickin' it into high gear!!!

cool.... now for a pinout on that 6 pin header in the memory card (is
it serial or parallel)... sorry for the really extremly late reply
(life got complicated here)

>   Description : the Massive Memory Card Plus windows
software/drivers for Dr_Blackross. this is the dcmmcp.exe app
>
> You can access this file at the URL
>
> http://groups.yahoo.com/group/vmu-dev/files/dcmmcp.exe
>
> To learn more about file sharing for your group, please visit
>
> http://help.yahoo.com/help/us/groups/files
>
> Regards,
>
> gengar560 <gengar56@h...>

--- In vmu-dev@yahoogroups.com, RageAgnstDMarmot@a... wrote:
> Dosen't Yahoo have some sort of way to prevent this spam?

User subscription is now moderated which should help.

Leo.

Hello,

someone mailed the owners about suspect files in the files area (i removed that
email
and forgot the name, sorry :-) It took me quite a while to recover the login and
password for this account since I did not use it for a long time, even though I
read the
digest always.

It is still good to see that the DC is not dead yet. I can verify that on
virtuamunstaz.de
where still a lot of people use the vmu data creator online.


I switched off some of the lesser used web tools and made usage a little more
restrictive to prevent further spam.

Have fun,

   leo.

We would like to remind you of this upcoming event.

Richard's birthday ;-)

Date: Thursday, May 15, 2003
Time: All Day

well, I was stuck for stuff to add to the calendar, okay ;-)

you can now download games with out nexus or cable just go here
http://homebrew.dcemulation.com/xdp/xdp.html and burn this new web
browser for dreamcast and it has a lot of vmu games on it ready to be
save on your vmu. maybe someone can make a website with all the vmu
games in it so when they upgrade the browser the website with the
games can be put on their next upgrade. this is all the games on the
browser http://jeffma.51.net/vmgame/ maybe this news will wake up the
dying scene

--- In vmu-dev@yahoogroups.com, "wstabosz82 <wstabosz82@y...>"
<wstabosz82@y...> wrote:
> hi,
>
[...]
> Conclusion:
> Using the web browser to send VMS to VMU will not work. Unless anyone
> has any other ideas.
>
Is there a tool aviable to write any Data from cd to the vmu or
something that could be used for it?

Or is there a way to copy files to the vmu with dclinux? Then I could
try to write a little Program that shows a menu and Uploads this file.
But i think a dc binary without linux should be doable too. And if
undel linux it would be a better idea if someone with a keyboard tries
that.

This would be a good way to upload games for people that don't have a
serial cable (like me) and for changing vmu games fast.

Anyway if we'd had the source of a Programm that can move one specific
file to the vmu than maybe we could add a menu to it. Another way
would be to use a boot menu like DC Hakker and compile a binary with
the vms name vompiled in for every game on the disc. So does anyone
know of Sources that could be Useful? Or does anyone already know hom
to to such a thing?

Marc

--- In vmu-dev@yahoogroups.com, Omar Cornut <cornut@n...> wrote:
>
> >Everybody knows that Dreamsnes lags really bad, well i was thinking
> >what if you could load the roms from the vmu and bypass the DC's
ram.
> >There's that 16 or 24m mega vmu that can connect to a computer, you
> >download the roms onto the vmu and Dreamsnes would have more of the
> >DC's ram which could speed up emulation. I don't know if this has
> >been tried or not but i thought what hell i'll post anyway.
>
> VM access and transfer are way too slow to be of any use as a
> replacement for standard RAM.
>
> More over, I do not recall about any VM with more than 512 kilobytes
> (the four-pages ones).



Shit! Well, there goes that idea down the toilet.