3 ms·

A real working Cray 1 is a bit hard to find today, but in addition to the FPGA version by Chris Fenton that was already mentioned (https://www.chrisfenton.com/h

A real working Cray 1 is a bit hard to find today, but in addition to the FPGA version by Chris Fenton that was already mentioned (https://www.chrisfenton.com/homebrew-cray-1a/ https://www.chrisfenton.com/homebrew-cray-1a/), there is also a simulator for various Cray models at https://github.com/andrastantos/cray-sim https://github.com/andrastantos/cray-sim The biggest problems will be finding a C compiler for the Cray and adding a framebuffer output, I think... but this is a very nice challenge :).

ardy42 6y ago
> The biggest problems will be finding a C compiler for the Cray and adding a framebuffer output, I think... but this is a very nice challenge :). I suppose you could run Doom as a batch job: input is a file with the control input and output is a gameplay video.
- greenshackle2 6y ago
  Doom can record game sessions to LMP file format, which is a recording of the inputs on every frame. That's usually how people share runs in the Doom speedrun community. So yeah a LMP-to-video converter could be legitimately useful to some people. https://doom.fandom.com/wiki/Demo#Custom_demos https://doom.fandom.com/wiki/Demo#Custom_demos
  - ogurechny 6y ago
    Perhaps you'd want to reference the wiki that was not abandoned ages ago. https://doomwiki.org/wiki/Demo https://doomwiki.org/wiki/Demo https://doomwiki.org/wiki/Doom_Wiki:Departure_from_Wikia https://doomwiki.org/wiki/Doom_Wiki:Departure_from_Wikia “LMP-to-video converter” is any Doom port which output you can record by common (or less common) means. PrBoom+ has a built-in demo playback recording (if you consider running the console encoders and feeding them sound and image data “built-in”). https://github.com/coelckers/prboom-plus/blob/master/prboom2/doc/prboom-plus-usage.txt#L340 https://github.com/coelckers/prboom-plus/blob/master/prboom2...
- deleted 6y ago
  [deleted]
tedd4u 6y ago
Andras Tantos has ssh and X11 working [1] on his simulator so maybe there's a fairly straight-forward path to porting something like this? [2] Seems possible that this aspect of the platform might drive the need some rework though [1]: sizeof(unsigned int) = 8; UINT_MAX = 18446744073709551615 sizeof(unsigned long) = 8; ULONG_MAX = 18446744073709551615 sizeof(unsigned char) = 1; UCHAR_MAX = 255 sizeof(unsigned short) = 8; USHRT_MAX = 4294967295 i.e. ints are 64-bit longs, shorts are 32-bit but use 64-bits [1] http://www.modularcircuits.com/blog/articles/the-return-of-the-cray-files/to-ssh-and-beyond/ http://www.modularcircuits.com/blog/articles/the-return-of-t... [2] https://github.com/ozkl/doomgeneric https://github.com/ozkl/doomgeneric

ardy42 6y ago

> The biggest problems will be finding a C compiler for the Cray and adding a framebuffer output, I think... but this is a very nice challenge :). I suppose you could run Doom as a batch job: input is a file with the control input and output is a gameplay video.

greenshackle2 6y ago
Doom can record game sessions to LMP file format, which is a recording of the inputs on every frame. That's usually how people share runs in the Doom speedrun community. So yeah a LMP-to-video converter could be legitimately useful to some people. https://doom.fandom.com/wiki/Demo#Custom_demos https://doom.fandom.com/wiki/Demo#Custom_demos
- ogurechny 6y ago
  Perhaps you'd want to reference the wiki that was not abandoned ages ago. https://doomwiki.org/wiki/Demo https://doomwiki.org/wiki/Demo https://doomwiki.org/wiki/Doom_Wiki:Departure_from_Wikia https://doomwiki.org/wiki/Doom_Wiki:Departure_from_Wikia “LMP-to-video converter” is any Doom port which output you can record by common (or less common) means. PrBoom+ has a built-in demo playback recording (if you consider running the console encoders and feeding them sound and image data “built-in”). https://github.com/coelckers/prboom-plus/blob/master/prboom2/doc/prboom-plus-usage.txt#L340 https://github.com/coelckers/prboom-plus/blob/master/prboom2...
deleted 6y ago
[deleted]

tedd4u 6y ago

Andras Tantos has ssh and X11 working [1] on his simulator so maybe there's a fairly straight-forward path to porting something like this? [2] Seems possible that this aspect of the platform might drive the need some rework though [1]: sizeof(unsigned int) = 8; UINT_MAX = 18446744073709551615 sizeof(unsigned long) = 8; ULONG_MAX = 18446744073709551615 sizeof(unsigned char) = 1; UCHAR_MAX = 255 sizeof(unsigned short) = 8; USHRT_MAX = 4294967295 i.e. ints are 64-bit longs, shorts are 32-bit but use 64-bits [1] http://www.modularcircuits.com/blog/articles/the-return-of-the-cray-files/to-ssh-and-beyond/ http://www.modularcircuits.com/blog/articles/the-return-of-t... [2] https://github.com/ozkl/doomgeneric https://github.com/ozkl/doomgeneric