Mode x 320x240 VGA.

[Retroman839]

320x240 vga
Aka mode x

Does any one use this ?

 

[Mykill2.0]

Early IBM computers

 

[Retroman839]

Yes …
And I have some interesting mode lines in my
Pmame cfg file for dos. Win98

resolution's Along the 320x200
Displaying nice on a vga.

Seems the pc2jamma projects of early 1990’s implimeted these in early mame projects ..
31 January 2026

Will do a closer vídeo asap …to show pixels .. but I’m wondering if it’s line doubled ?

I would like to know how it displays full screen?

Mister fpga has a nice scan doubler for vga ..
Is scan doubling driven by hardware only or software only or both possible ?

 

[Macro]

From memory it was a good mode to program on pc since it was one byte per pixel and fitted in 64k so was easy to access from assembler as all in same segment.

 

[Retroman839]

From memory it was a good mode to program on pc since it was one byte per pixel and fitted in 64k so was easy to access from assembler as all in same segment.

seems here that it is implementing a scan line between each line …


Will add the cfg file resolutions later,

I’m trying to get same affect with retroarch but always end up with a small screen in middle of monitor ..