Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!biar!trebor
From: trebor@biar.UUCP (Robert J Woodhead)
Newsgroups: comp.sys.mac
Subject: Re: Pierce Explains RISC. was new mac rumors
Message-ID: <169@biar.UUCP>
Date: 28 Feb 89 03:50:28 GMT
References: <161@biar.UUCP> <9795@cit-vax.Caltech.Edu> <165@biar.UUCP>
Reply-To: trebor@biar.UUCP (Robert J Woodhead)
Organization: Biar Games, Inc.
Lines: 21

In article <165@biar.UUCP> trebor@biar.UUCP (Robert J Woodhead) [me] writes:
>The 6502 does not have a multiply instruction.  As I remember it (I haven't
>looked up the instruction timings in years) each cycle on a 6502 is a
>complete bus operation).  Thus, the only instructions
>that are 1 cycle long are those without memory or immediate operands, such as
>TAX or CLC.  This is a very small number of instructions.

Well, foot-in-mouth disease is catching.  My onboard memory not being
parity checked, I blew it.  There are no 1 cycle 6502 instructions, as
a gentleman from Apple mentions in his response to the original post.

Though come to think of it, there were times when I was writing disk II
code when I wished there were a few....

+---------------------------------------------------------------------------+
| Robert J Woodhead      !uunet!cornell!biar!trebor     CompuServe 72447,37 |
| Biar Games, Inc., 10 Spruce Lane, Ithaca NY 14850  607-257-1708,3864(fax) |
+---------------------------------------------------------------------------+
| Games written, Viruses killed   "I'm the head honcho of this here spread; |
| While U Wait.  Take a number.    I don't need no stinking disclaimers!!!" |
+---------------------------------------------------------------------------+