Which are the graphics modes are used in Commando , Double Dragon and Midnight Mutants ?

[Aug]

Hello.
Which graphic resolutions and number of colors are used in Commando , Double Dragon and Midnight Mutants ?

Why when using 320 modes are available few colors ? not enough ram or Maria processing ?

Thanks for replying.
Have an nice week.

[+splendidnut]

@Trebor created a spreadsheet showing the usage of Graphics Modes for the original games (and some of the homebrews).

 

It can be found here (a78info_EDIT.csv):

 

[RevEng]

14 hours ago, Aug said:

Why when using 320 modes are available few colors ? not enough ram or Maria processing ?

Sure, all of that.

 

Nothing is free, and the 320 modes use most of the same circuitry as the 160 modes. To upgrade the 320 modes with more colours, you'd need to upgrade that common circuitry, at which point you might as well enhance the 160 modes too. Then decades later someone would ask why the 320 modes only have 12 colours, when the 160 modes have 48.

[Defender_2600]

1 hour ago, RevEng said:

Then decades later someone would ask why the 320 modes only have 12 colours, when the 160 modes have 48.

 

Maybe two 7800 consoles in tandem? One dedicated to sprites and the other dedicated to background?

 

[+Muddyfunster]

1 minute ago, Defender_2600 said:

 

Maybe two 7800 consoles in tandem? One dedicated to sprites and the other dedicated to background?

 

7800 Transputer with 640 mode!

[Aug]

Thanks for all replies.

What ? I am surprised reading the csv file about Commando , Double Dragon and Midnight Mutants using 160 mode.
Running in emulator is as the screen is bigger than 160 mode. Strange both using 160 mode are using few colors.

Double Dragon sprites are much simple for Atari 7800.
Basketbrawl show an example as could have been Double Dragon.
However is as if the Atari 7800 use more rom space than the NES.

Atari 7800 having more than 4 KB RAM and extra ram in cartridge can use 320 mode with much more than 12 colors ?
Rikki & Vikki use 320 mode with 17 colors ? If yes is exactly because of extra ram on cartridge ?

Edited January 26 by Aug

[Defender_2600]

55 minutes ago, Aug said:

Rikki & Vikki use 320 mode with 17 colors ?

 

No, 7 colors, 320B.

 

Maximum number of colors per zone / scan line: 7 or 9 colors including background color, so 6+1 for 320B and 8+1 for 320A and 320C.

 

The maximum number of colors per zone / scan line (7 or 9 colors) it does not necessarily have to be associated with the maximum number of colors on screen. Atari 7800 Froggie, in 320 mode ( 320×240 ), has over 20 colors on screen + transparent.

 

Edited January 26 by Defender_2600

[Defender_2600]

1 hour ago, Aug said:

Double Dragon sprites are much simple for Atari 7800.
Basketbrawl show an example as could have been Double Dragon.

 

I made this mockup several years ago...

 

 

 

 

 

 

 

 

[Aug]

I remember seeing the links above.

The images was done using Atari 7800 graphics tools ?

Is possible hack the Double Dragon version with the tiles from the images ?

Double Dragon version have sprites with few colors and and the CPU difficulty and moving sprites are strange too.

[Defender_2600]

23 minutes ago, Aug said:

The images was done using Atari 7800 graphics tools ?

As usual, I used MS Paint.

 

24 minutes ago, Aug said:

Is possible hack the Double Dragon version with the tiles from the images ?

I think it would be easier to rewrite the code from scratch.

 

27 minutes ago, Aug said:

Double Dragon version have sprites with few colors

Because the 160A mode is used for the sprites, to get more colors it is necessary to use the 160B mode which consumes more resources and requires more optimization in the code. Background graphics can use 160A + 160B direct mode.

 

[madmax_2069]

9 hours ago, Defender_2600 said:

I think it would be easier to rewrite the code from scratch.

That would be a dream come true, not only applying what has been learned over the years, as well as adding some Pokey music.

 

But something like that would be quite the undertaking.