River Raid ASM Question

[Shawn]

hey All,

 

 

Does anyone have a ASM of River Raid that has the color tables commented into it for the balcgrounds\ships\ect? I have neet idea I'm playing with for a Star Wars type hack and I was just wondering if I could save some time if there is already a disasembly avalible that has the colors commented already.

 

Thanks For Any Help,

 

Shawn Sr.

[Thomas Jentzsch]

What's wrong with my disassembly?

[Shawn]

What's wrong with my disassembly?

1013279[/snapback]

 

 

Nothing at all. I'll give it a try. I read threw it and it notes the colors but I was hoping for one that was "k.i.s.s."ed a little more. Like

 

LDX $80; this is the color of the boat

 

For example. I'll see what I can do with yours and I will amend the ASM the way I mean and re-post it.

[PabloC]

On 2/5/2006 at 1:44 PM, Thomas Jentzsch said:

What's wrong with my disassembly?

I tried to compile your disassembly, but it is not working. The plane explodes at the very beginning when you touch the joystick. :(

 

 

[+SvOlli]

The fix is rather simple: search for the term "-$30" and remove each occurrence. Thomas can explain is was in there in the first place.

[Thomas Jentzsch]

Alternatively you can use: 

TIA_BASE_READ_ADDRESS = $30

 

in the first line of your code (before include vcs.h)

 

Originally vcs.h had the TIA read registers defined at $3x, but River Raid uses a mirror at $0x. So I had to add "-$30" to any TIA read access register. Today vcs.h. defaults to $0x, TIA_BASE_READ_ADDRESS = $30 changes that to the old behavior.