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From: jack@boring.UUCP
Newsgroups: net.arch
Subject: Re: Addressing modes
Message-ID: <6797@boring.UUCP>
Date: Tue, 25-Feb-86 19:53:07 EST
Article-I.D.: boring.6797
Posted: Tue Feb 25 19:53:07 1986
Date-Received: Fri, 28-Feb-86 08:42:37 EST
References: <137@hhb.UUCP> <736@ism780c.UUCP>
Reply-To: jack@mcvax.UUCP (Jack Jansen)
Organization: AMOEBA project, CWI, Amsterdam
Lines: 17
Apparently-To: rnews@mcvax

In article <736@ism780c.UUCP> tim@ism780c.UUCP (Tim Smith) writes:
>In article <137@hhb.UUCP> mlopes@hhb.UUCP (Marco Lopes) writes:
>>
>> Functionally, there is no problem with register direct and
>> register indirect as the only addressing modes.  Any other modes
>> can be simulated with them.  Immediate addressing would be
>> simulated by allocating a memory location for the immediate
>> value, and loading its address into a register.  Now you you can
>	     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> use register indirect to load the value into another register.
>
>But how do you load THAT register?
Ahh, that's simple. You just use the trick Marco Lopes
described above......
-- 
	Jack Jansen, jack@mcvax.UUCP
	The shell is my oyster.