Emulating SUN3 or SUN4 kernel in cygwin

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Emulating a SUN3 or SUN4 kernel in Cygwin on Windows 7 poses significant challenges, particularly due to Cygwin's limited support for the underlying system architecture and graphics capabilities required by the software SUPREM IV GS and SEDAN III, which were compiled around 1994. Users suggest that running these applications on a Linux environment may be more viable, as indicated by the software's documentation. Concerns about compatibility arise from SUNOS's lack of full POSIX compliance, which could lead to issues with system and library calls. For those with access to RHEL 4, 5, or 6, modifications to the Makefile will likely be necessary to adapt to the Linux environment, although specific changes were not detailed in the discussion. Users are encouraged to share any successes or insights from their attempts to run the software.
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Anyone has any idea about how to emulate a SUN3 or SUN4 kernel in cygwin under windows 7?

I want to run these two softwares SUPREM IV GS and SEDAN III. The are free to download and use from http://www-tcad.stanford.edu/
It seems from the makefile that it uses sun3 / sun4 architecture and was compiled around 1994.

Please report me any success.

Thanks
 
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It'd probably be pretty ugly... Cygwin emulates a UNIX-like shell environment on Widows, but not a whole lot of the underlying system, especially graphics which I imagine your desired programs use heavily. The "TOOLS" page I looked at indicates that you might be able to get it running under some types of Linux, so that might be a better approach. IIRC SUNOS was not be entirely POSIX compliant, so some of the underlying sys and lib calls may not match current reality.
 
I have access to RHEL 4,5,6 linux. Will I be able to run them there? What will be changed in the Makefile?
 

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