Message-ID:	<361AF2AB.A34BD6B8@montana.com>
Date:	Tue, 06 Oct 1998 22:48:43 -0600
From:	bowman <bowman AT montana DOT com>
X-Mailer:	Mozilla 4.5b2 [en] (Win95; I)
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To:	djgpp AT delorie DOT com
Subject:	Re: allocating dword aligned memory with __dpmi_allocate_memory
References:	<009301bdf19e$c0093e80$986f19c4 AT default>
Reply-To:	djgpp AT delorie DOT com

"StefanViljoen,6599" wrote:
> 
> Hey, what does the tilde "~" do here? "+3)&~4) ?

one's complement. 

4  is 00000100B        (for a byte. all the zeros in a long make me
dizzy)
~4 is 11111011B

then, the & does the bitwise AND, clearing the bit.

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