Build environment on Windows is joined from:

HI-TECH-C-V3.09 with emulator (cpm_orig.exe)
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https://github.com/serge-404/HI-TECH-C-V3.09


HI-TECH-C-V3.09 that's still maintained (C309-15.COM, LINQ.COM , ...)
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https://github.com/agn453/HI-TECH-Z80-C/tree/master/dist