Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Paul Rubin Newsgroups: comp.lang.forth Subject: Re: Ting's EP32 32 Bit Processor IP with eForth eBook is available now and the Project page started Date: Tue, 25 Apr 2017 18:39:03 -0700 Organization: A noiseless patient Spider Lines: 6 Message-ID: <87zif4dk20.fsf@nightsong.com> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: mx02.eternal-september.org; posting-host="b9f70812e09e9d6940da6b1378d8abda"; logging-data="16647"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18pgP7FRYfSrKoy+XvCZz9P" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Cancel-Lock: sha1:LP6r7JJoARNmINplCNKDXlnzF0E= sha1:2JXzngiVaVtdxubxs6kywoMLwZI= Xref: csiph.com comp.lang.forth:58167 rickman writes: > How about not having the AND instruction? Did the PDP-11 have AND? I remember it had BIC (bit clear) which used the source operand as a bit mask to clear bits in the dest operand. But I believe that to get AND you had to do NOT followed by BIC.