Crazee Rider 6502 source code now available

reminisce about bbc micro & electron games like chuckie egg, repton, elite & exileRelated forum: adventures


Post Reply
Kevin Edwards
Posts: 100
Joined: Tue Mar 14, 2006 9:16 pm
Contact:

Crazee Rider 6502 source code now available

Post by Kevin Edwards » Mon Nov 05, 2018 9:56 pm

Hi,

I have just released the 6502 source code for my BBC Micro game, Crazee Rider, from 1987. This was taken from the original master disks and adapted to build using BeebAsm on a PC. I hope this gives some insight into how games were made in the 1980s!

You can find the details on my Twitter account:-

https://twitter.com/KevEdwardsRetro

Thanks!
Kevin.
screenshot.png


6502
Posts: 20
Joined: Sat Mar 17, 2018 1:04 pm
Location: London
Contact:

Re: Crazee Rider 6502 source code now available

Post by 6502 » Mon Nov 05, 2018 11:26 pm

Great stuff Kevin.

Be interesting to hear what sort of development environment you used for your games. For example, did your require the Tube fitted for more memory to assist assembly and what sort of text editor, screen mode and machine code monitor did you use?

User avatar
davidb
Posts: 2231
Joined: Sun Nov 11, 2007 10:11 pm
Contact:

Re: Crazee Rider 6502 source code now available

Post by davidb » Mon Nov 05, 2018 11:26 pm

Thanks, Kevin! :D

Now we can finally make Overdrive 2 with corners! ;)

User avatar
FourthStone
Posts: 605
Joined: Thu Nov 17, 2016 2:29 am
Location: Melbourne, Australia
Contact:

Re: Crazee Rider 6502 source code now available

Post by FourthStone » Tue Nov 06, 2018 6:29 am

Impressive! Thank you =D>

User avatar
scarybeasts
Posts: 25
Joined: Tue Feb 06, 2018 7:44 am
Contact:

Re: Crazee Rider 6502 source code now available

Post by scarybeasts » Tue Nov 06, 2018 9:29 pm

Thanks for releasing / preserving this history Kevin!!

User avatar
scarybeasts
Posts: 25
Joined: Tue Feb 06, 2018 7:44 am
Contact:

Re: Crazee Rider 6502 source code now available

Post by scarybeasts » Wed Nov 07, 2018 1:38 am

Also: loved the music on this one. In fact I'm experimenting with a new emulator and I added SWRAM support specifically to enjoy the Crazee Rider music as soon as I could :-)

User avatar
Rich Talbot-Watkins
Posts: 1367
Joined: Thu Jan 13, 2005 5:20 pm
Location: Palma, Mallorca
Contact:

Re: Crazee Rider 6502 source code now available

Post by Rich Talbot-Watkins » Wed Nov 07, 2018 1:09 pm

=D>

Great stuff Kevin, thanks for sharing!

Hopefully it wasn't too much work to get it from BBC BASIC into BeebAsm format!

Kevin Edwards
Posts: 100
Joined: Tue Mar 14, 2006 9:16 pm
Contact:

Re: Crazee Rider 6502 source code now available

Post by Kevin Edwards » Wed Nov 07, 2018 10:58 pm

Hi Rich,

I used bas2txt.exe then spent quite a few hours stripping out the BBC BASIC stuff and substituting the BeebAsm directives.

It took me a bit of time to work out the relevant commands then it was fairly easy - I think you covered most of the things I needed to do which made the job straightforward!

Many thanks again for you work on BeebAsm!

I have lots of other projects i'd like to move to BeebAsm, some of which will be much more challenging!

RobC
Posts: 2318
Joined: Sat Sep 01, 2007 9:41 pm
Contact:

Re: Crazee Rider 6502 source code now available

Post by RobC » Thu Nov 08, 2018 6:11 pm

Thanks for making this available Kevin - this was one of my favourite Beeb games BITD =D> :D

Kevin Edwards
Posts: 100
Joined: Tue Mar 14, 2006 9:16 pm
Contact:

Re: Crazee Rider 6502 source code now available

Post by Kevin Edwards » Sun Nov 11, 2018 12:42 pm

Hi,

I have updated the BBC Micro Crazee Rider source code archive to include the original source code disk image ( .dsd ). The latest update information can be found here:-

https://twitter.com/KevEdwardsRetro

The repository now contains the original BBC BASIC tokenised source code files that can be built on a BBC Micro/Master hardware ( with 6502 2nd processor ) or under emulation.

You can also find BeebAsm buildable source code in the repository too.

I hope this code is of interest to anyone interested in 6502 programming or who is curious about how games were created in the 1980s.

I believe it is important to preserve the code and build processes used for old games.

Anyone else out there with game source code that they can share?

Thanks,
Kevin.

Post Reply