Recent content by carlos12

I think that's a fascinating subject. At its time, as far as I can remember Amiga computers were perceived almost as a game console with a keyboard. Of course, they were able to run business software and they were used as graphic stations, but that's the general perception I felt at the time...

The latest official release of 86Box supports, at last without bugs, screen shaders. Also do DOXBox-x and PC-em. They come with a lot of shaders. The ones I like most, from what I tried, are CRT-geom and CRT-lottes-fast. They simulate the CRT curvature but, in my opinion it's a bit exaggerated...

I think MartyPC looks great, and I really admire it's a new development made from scratch, by a sole developer. Amazing! Unfortunately, I wasn't able to run it on my Windows 10 computer. It crashes before doing anything. For now, until a more mature version is released, I'll stick with 86Box...

In my case, I keep 3.30 for the sake of period accurateness and nostalgia, because, IIRC, it was the OS originally released with the PS/2 Model 30, and I keep it also for caution, in case I find an application or game that doesn't fit on RAM because of the extra ~25 Kb that 5.x takes...

IBM PC-DOS 3.30 installed on period hard disks; PC-DOS 5.0 installed on 2 Gb Compact Flash cards (XT-IDE/XT-CF Lite). Ocasionally using 2.10, loading from 5.25" drive, mostly for testing purposes. 2.x has the lowest RAM consumption. 3.30 takes a bit more RAM, and it's able to recognize drives...

Indistinguishable from the real thing... They kept us deceived all this time! How they dared?

Isn't the MDA a text only display adapter? No graphics at all will display, unless you found a way to hack the CRT to being able to display individual pixels, and anyway, the RAM of the MDA is too scarce to do anything. If doing a text only game, I think there would not be much problem even on...

Fortunately, the system is smart enough to automatically disable the internal MCGA by itself, so installing a VGA card is just plug and play. The 8503 is totally compatible with VGA cards as it's an analog monitor, at least up to 640x480 for graphics and 720x400 for text modes.

Yes, it does! I have the same model, mine I think it's earlier, made in UK '87 or '88, and put inside an early Sound Blaster 16 and it works flawless. Sound Blaster ISA 16 are easier to find and much cheaper than the 8 bit ones (if found...). As it was pointed before, another good update should...

Theoretically and if I'm not mistaken, the only graphic mode that an EGA card can display over an MDA monitor (such as the 5151) is mode 0Fh, 640x350, black and 3 shades of gray (green on this case). So my guess is this demo could be actually using mode 0Fh (maybe it detects the monitor, as it...

Good source code I think is always welcome. Thanks a lot for sharing it.

Hi! Indeed, the pointer just points to the begining of the structure, nothing else. So adding something to the pointer just changes the address the LDS gets to the next addresses after it, not the next addresses of the memory piece it points to. I think this modification may do what you need...

Certainly the CGA deserves more love :biggrin:. I don't blame Carmack, after all he did an incredible job with the CGA on the Commander Keen saga. It would be great he knew about this port.

Fantastic!

Is there any chance you, guys, will post some write ups about the technical details, as it was made with 8088 Mph? That would be so great...! Thanks!