Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!ucsd!rutgers!tut.cis.ohio-state.edu!osu-cis!att!mtuxo!mcripps
From: mcripps@mtuxo.att.com (XMP12-M.CRIPPS)
Newsgroups: comp.graphics
Subject: Re: 680x0 vs. 80x86 (Was Re: Amiga or PC-AT ?)
Summary: there are no general purpose 80x86 registers
Message-ID: <2613@mtuxo.att.com>
Date: 30 Aug 88 21:01:32 GMT
References: <1820006@hpuamsa.UUCP> <46900021@uxe.cso.uiuc.edu> <386@snjsn1.SJ.ATE.SLB.COM>
Distribution: na
Organization: AT&T, Middletown NJ
Lines: 20

In article <386@snjsn1.SJ.ATE.SLB.COM>, greg@bilbo (Greg Wageman) writes:

> With the 80x86, the segment registers are tied up in the fashion of
> base registers, and are unavailable for general purpose use, reducing
> the general-purpose register count available to the programmer.
>     ^^^^^^^^^^^^^^^

80x86 general-purpose registers?  There are none!
	AX - accumulator
	BX - indexing
	CX - loop counting
	DX - high order accumulator & port register
	SI & DI - index
	BP - frame pointer
	SP - stack pointer
	CS, DS, ES, SS - segment regs
	and of course, the flags
That's all folks.  Any of these look general purpose to you?

Mike Cripps
mtuxo!mcripps