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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)

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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

#71479 — 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)

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/

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#71480

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/ 
> 

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#71482

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.

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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#71483

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.

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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#71484

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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#71498

Kevin Bowling <kevin.bowling@kev009.com> wrote:
> Could it be directly CPU bus attached?  I would guess it would show up 
> in a particular way if it was ISA attached.

I have guessed that it was, but I haven't touched a PS/2 E in the flesh
since the late 1990s.

"Spiritually" I suspect it derives a lot from the Model 35 SLC design,
which had a 84F7985 IBM SVGA which looks to be attached to a local bus.
The PS/2 E was positioned to be "premium", hence why it had the faster
XGA-2 versus the cheap SVGA chipset.

(Didn't some Mod. 30s and Mod. 45s use the same planar as the PS/2 E?)

> > 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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#71499 — 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)

The 9545 used the 9540 case and the 9533 sysboard.

Josh Rodd wrote:
> Kevin Bowling <kevin.bowling@kev009.com> wrote:
>> Could it be directly CPU bus attached?  I would guess it would show up
>> in a particular way if it was ISA attached.
> 
> I have guessed that it was, but I haven't touched a PS/2 E in the flesh
> since the late 1990s.
> 
> "Spiritually" I suspect it derives a lot from the Model 35 SLC design,
> which had a 84F7985 IBM SVGA which looks to be attached to a local bus.
> The PS/2 E was positioned to be "premium", hence why it had the faster
> XGA-2 versus the cheap SVGA chipset.
> 
> (Didn't some Mod. 30s and Mod. 45s use the same planar as the PS/2 E?)
> 
>>> 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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#71525 — 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)

I seem to recall some Japanese thing (not sure if it was a PS/55 or if
they were calling them PS/2s in Japan by then) that had both ISA and MCA
slots, and it looked very much like a 9533 PS/2 E.

Louis Ohland <ohland@charter.net> wrote:
> The 9545 used the 9540 case and the 9533 sysboard.
> 
> Josh Rodd wrote:
> > Kevin Bowling <kevin.bowling@kev009.com> wrote:
> >> Could it be directly CPU bus attached?  I would guess it would show up
> >> in a particular way if it was ISA attached.
> > 
> > I have guessed that it was, but I haven't touched a PS/2 E in the flesh
> > since the late 1990s.
> > 
> > "Spiritually" I suspect it derives a lot from the Model 35 SLC design,
> > which had a 84F7985 IBM SVGA which looks to be attached to a local bus.
> > The PS/2 E was positioned to be "premium", hence why it had the faster
> > XGA-2 versus the cheap SVGA chipset.
> > 
> > (Didn't some Mod. 30s and Mod. 45s use the same planar as the PS/2 E?)
> > 
> >>> 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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