Jump to content
Sign in to follow this  

High Score save to Memory Track and Cartridge Save chip

Recommended Posts

OK. So I know there is a tutorial for high scores already readily available to look at but my thing is a little bit different. For Saucer Wars there will be a single High Score. Its a single value that is displayed at Game Over and on the main menu.

It works so simple, like so:


IF score>highscore THEN




then the highscore is printed in those 2 areas of the game.


No high score lists with initials or anything fancy like that. The only other game I can think of that has a high score that works like this is downfall.


You will also be able to perform a "highscore reset" on the main menu by pressing # on the player 2 controller. This will set the value back to 0.


What I want to know is, how exactly would I store this highscore data to the save chip? Whats the code for that? I haven't seen that mentioned before. Also is it possible to do the same thing with the CD Memory track for the JagCD version? I have NEVER seen any Memory Track stuff for RB+, but I would think it seems to be a simple enough function. It's just 1 little number.


has anyone asked these questions before?

Share this post

Link to post
Share on other sites
Posted (edited)



OK So I found what you are talking about HERE. I see how one would save and even resort on a memory track. But what about the cartridge save chip? If it's calling for MT I am assuming that is ONLY the memory track and not the onboard save chip on the cart PCB. Or are they the same in that regard? And again, I don't want a high score table, just one high score value, does that matter?


What I wanted to do was just save the DIM value I already had labeled "highscore". And then manually reset it back to zero if the user chooses to do so.

Edited by WAVE 1 GAMES

Share this post

Link to post
Share on other sites
Posted (edited)

A couple of things to consider:


- You probably don't need all the complexity of raptor if you just plan to use a single score.

- Check out the advanced scores example (https://github.com/ggnkua/bcx-basic-Jaguar/blob/master/projects/scoresadvanced/scoresadvanced.bas) to get some ideas.

- There are procedures to read and write from and to eeprom (powaeeprom) and MT (raptor_mt_save). 

- MT data is automatically loaded if MT present and a file is present on it.

- Don't forget to set RAPTOR_MT_app_name and RAPTOR_MT_file_name in rapinit.s of your project to something unique to avoid overwriting other stuff

- I haven't tested this, but I think for your case you can simply read/write your highscore to the first 4 bytes of the highscore memory area, something like highscoreBoard[0]=123456789. Check https://github.com/ggnkua/bcx-basic-Jaguar/blob/master/projects/scoresadvanced/scoresadvanced.bas#L72 for more info.

- In general just read that file and its comments, it should walk you through all the important details :)

Edited by ggn
  • Thanks 1

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...