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Information about the Apollo CPU and FPU.

How Do I Make a 320 X 200 Screen Mode?

Adam Whittaker

Posts 261
15 Oct 2019 16:48


I have tried using the settings prefs for picasso in coffin to make a 320 x 200 screen mode as the latest version of Amiwolf rtg needs it but the problem is no matter what I try it doesn't work - I click test and the settings either make my monitor day out of range or I have a black screen... there is signal but it's just black! Any ideas? Is it me? Is it my monitor?


Roy Gillotti

Posts 350
15 Oct 2019 17:02


I know H.D.M.I itself the lowest resolution is 640x400 or something like that, last I knew if you attempted this low resolution the vampire would automatically upscale it.
 
  I know it's a bit finicky I spent a long time changing clock frequencies and settings on some of the custom modes I made with my Samsung TV, I know there used to be a tool out there that calculates what setting you should use if you select a specific resolution... Maybe someone with a better memory than me can chime in.


Philippe Flype
(Apollo Team Member)
Posts 257
15 Oct 2019 18:13


On my setup, maybe not optimal, depending on your monitor :

Width: 320 Height: 240
Interlace: NO
DoubleScan: NO
Clock: 5.08 MHz
FrameSize: 400 254
BorderSize: 0 0
Position: 8 4
SyncSize: 32 4
SyncPolarity: NO YES
Frequency: 13kHz 50Hz

--

Width: 320 Height: 200
Interlace: NO
DoubleScan: NO
Clock: 4.30 MHz
FrameSize: 400 214
BorderSize: 0 0
Position: 8 4
SyncSize: 32 4
SyncPolarity: NO YES
Frequency: 11kHz 50Hz

--



Samuel Devulder

Posts 220
15 Oct 2019 18:57


Oh, strangely enough yesterday I successfully designed a 320x180 mode to enable quake in full-screen on a 16:9 monitor. Is this a season where many people play with P96 settings ?
 
Notices:
1) the success wasn't immediate since I had first to figure out how P96Mode works.
   
2) having quake running in 320x180 instead of 320x200 is an easy increase in speed game without major visual difference. It also removes the garbage in the end of the screen when 320x180 playfield is displayed in 320x200 monitor-mode when poking saga frame-buffer pointer around.


Adam Whittaker

Posts 261
16 Oct 2019 08:56


Made one with this information - thank you guys!


Philippe Flype
(Apollo Team Member)
Posts 257
16 Oct 2019 18:53


great!

posts 6