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From: epames@eos.ericsson.se (Michael Salmon)
Newsgroups: comp.lang.c
Subject: Re: Unix and C
Message-ID: <1990Nov8.100816.6004@ericsson.se>
Date: 8 Nov 90 10:08:16 GMT
References: <LDB1R3w163w@railnet.UUCP> <4458@mint39.UUCP>
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In article <4458@mint39.UUCP> gunda@motcid.UUCP (Indira Gunda) writes:
>richb@railnet.UUCP (Richard Banks) writes:
>
>>How can Unix be written in C ? I thought all OS`s had to be written
>>in assembly language, else they'd have the same interrupts as the
>>OS you booted your complier language under to write the program ?
>
>Yes ... Why and how can UNIX be written in C?  I'd also like to know.
>
Of course the whole of Unix cannot be written in C but only a small
percentage need be written in assembler. The books on Minix and XINU
are probably the best place to look to see how it's done.

Michael Salmon
L.M. Ericsson
Stockholm