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From: dewar@gnat.com (Robert Dewar)
Newsgroups: comp.lang.ada
Subject: Re: hypothetical question
Date: 5 Jul 2001 14:51:46 -0700
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"chris.danx" <chris.danx@ntlworld.com> wrote in message news:<TW117.4820$Jk6.1116376@news2-win.server.ntlworld.com>...
> Also you can't just do an OS in Ada, at some point there has to be 
> some Asm though it may just be one or two lines to invoke task 
> switching etc.

nope, once you have your low level Ada compiler bootstrapped then
you can do the operating system task switching entirely in terms
of Ada task switching. Thinking you have to use ASM to do task 
switching is exactly like thinking you have to use ASM to do a
hardware addition. Yes, there is a bootstrap problem, but given
Ada compilers on other machines, that is easily solvable.