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Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA)

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On 7/30/26 11:09, Josh Rodd wrote:
> Louis Ohland <ohland@charter.net> wrote:
>> Would this be something significant for the 9533?
>>
>> Louis Ohland wrote:
>>> https://forum.vcfed.org/index.php?threads/galaxeus-new-dos-bare-metal-arcade-engine-gives-solid-78hz-78-fps-on-a-386-sx-cpu-hi-res-544x480-on-slow-8-bit-isa-std-vga.1258384/
>>>
> 
> Well, the 9533 has a quite capable CPU in it (a 50Mhz Blue Lightning)
> using 60ns or 70ns FPM RAM (two cycles of the 25MHz external bus) on a
> not-so-capable ISA 8MHz bus.
> 
> However, the XGA(-2) on the PS/2 E is attached some "funny" way, because
> it certainly performed a lot better than a typical ISA Super VGA would.
> Maybe that was just the XGA acceleration fooling me, but it had no
> problems at all keeping up with software rendered M-Motion in 16-bit
> direct colour.

Could it be directly CPU bus attached?  I would guess it would show up 
in a particular way if it was ISA attached.

> With that said, this project probably isn't too relevant to the PS/2 E
> since it managed to be a lot faster than a typical 386SX and in
> particular has a much more capable video system. It's actually a bit of
> a genius design - the only thing slow are peripherals that are dog-slow
> anyway, like the IBM 54G0135 drive, spinning just over 3,600 RPM and
> running at about 1MB/sec.
> 
> Stacked up next to an MCA bus ThinkPad 720, the PS/2 E's video system
> performed substantially better than the 720's MCA-attached WD video
> chip... the same cannot be said for the ESDI drive in the ThinkPad 720,
> probably because that drive could actually do DMA.
> 
> Incidentally the PS/2 E was a tragedy when they were being liquidated at
> Best Buy... 4MB machines with 1MB spent on the video subsystem, booting
> OS/2, and just swapping like crazy to a laptop-speed drive doing
> programmed I/O. A 71F7010 4MB upgrade made the thing actually usable.

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GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) Louis Ohland <ohland@charter.net> - 2026-07-30 06:58 -0500
  Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) Louis Ohland <ohland@charter.net> - 2026-07-30 07:05 -0500
    Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-07-30 18:08 +0000
    Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-07-30 18:09 +0000
      Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) Kevin Bowling <kevin.bowling@kev009.com> - 2026-07-30 15:42 -0700
        Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-08-02 23:55 +0000
          9545 Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) Louis Ohland <ohland@charter.net> - 2026-08-02 20:28 -0500
            Re: 9545 Re: GALAXEUS: New DOS / Bare-Metal Arcade Engine gives solid 78Hz/78 FPS on a 386(sx) CPU (Hi-Res 544x480 on slow 8-Bit ISA Std. VGA) "Josh Rodd" <joshua.at.rodd.dot.us@rodd.us> - 2026-08-08 03:18 +0000

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