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Questions tagged [xenix]

for questions about the Xenix operating system

0 votes
3 answers
1k views

This was asked by @ilkkachu in comments, but I've always wondered about it myself. Unix, Posix, AIX, HP-UX, IRIX, Linux, Minix, Ultrix, Xenix... not to mention Active-X and Xbox. I know it all began ...
Miss Understands's user avatar
9 votes
0 answers
212 views

I'm writing a hello-world program for Xenix 86 in NASM. See the full source code. If I only put this to the code segment, then it fails with segfault (Memory fault) on Xenix 286: mov ax, 4 ; ...
pts's user avatar
  • 5,499
15 votes
3 answers
3k views

According to https://en.wikipedia.org/wiki/Xenix by the beginning of the nineties, SCO was selling 32-bit 386 versions of both Xenix and Unix. According to https://news.ycombinator.com/item?id=...
rwallace's user avatar
  • 65.3k
28 votes
4 answers
5k views

Browsing MS-DOS sources on GitHub, I often see mentions of XENIX: DOSSYM.ASM: ; XENIX calls all return error codes through AX. If an error occurred then the ; carry bit will be set and the ...
Igor Skochinsky's user avatar
13 votes
1 answer
945 views

Xenix was the most popular Unix flavour of the 80's. However, it was designed before the POSIX standards came to be, and its final version was released shortly after the first POSIX specification was ...
wizzwizz4's user avatar
  • 19k