IBM PC/XT RGBI CGA 160x100 with Borders Capture
0Here is a capture of my IBM PC/XT's boot, text mode and the 160x100 "graphics" mode using Round 42 and Styx and an IBM CGA card. What is particularly notable about these games is that they are among the few CGA "graphics" games that can change the border color from the default color of black. My Datapath has no real issue capturing CGA once CGA has been passed through my GGLabs CGA2RGB converter, except when color borders are turned on in 80-column text mode, the card will not display the colors correctly.
A program called TVCGAFIX by VileR gives the user many options to manipulate the horizontal timings. The program was intended to work with composite CRTs, but it partially fixed my border problems. The program works great with regular text-mode borders as shown with Round 42's license screen. This program is no help with games that use the 160x100 graphics mode. VileR helped me hack almost all the games which use 160x100 CGA mode and borders including the ones shown
The Datapath tends to shift games' vertical height somewhat as it encounters resolution changes, so rather than constantly adjust it, I let it stay a little bit off-center. Borders were thick on real RGB CGA monitors, these monitors typically lacked a user-accessible horizontal size adjustment. I captured a 720x480 image at 60fps and upscaled it 300%. The aspect ratio is not ideal, but these are experiments. You may want to compare my PC Styx capture to my PCjr. Styx capture.
You will see occasional flecks of randomly colored pixels, that is CGA snow, which is only visible in 80-column text modes or those modes derived from it. The sound has been recorded from the PC speaker directly via alligator clamps, and as the system boots you can hear the sound of the hard drive spinning.