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From: aynang@pur-ee.UUCP (Aynang)
Newsgroups: net.arch
Subject: Re: To Flag or Not to Flag...
Message-ID: <2336@pur-ee.UUCP>
Date: Thu, 8-Nov-84 09:55:33 EST
Article-I.D.: pur-ee.2336
Posted: Thu Nov  8 09:55:33 1984
Date-Received: Sat, 10-Nov-84 07:16:59 EST
Organization: Electrical Engineering Department , Purdue University
Lines: 13

The paper "Hardware/Software Tradeoffs fro Increased Performance"
is written by J.L. Hennessy, N. Jouppi, F. Baskett, and T.R. Gross. It
appeared in the Proc. SIGARCH/SIGPLAN Symp. on Architectural Support
for Programming Languages and Operating Systems, sponsored by ACM,
held at Polo Alto, ca, on March, 1982.

Also, the MIPS project developed at Stanford University does not use
any EXPLICIT status register as other computers do. Instead, it uses
34-bit ALU register to manipulate 32-bit data operations. Both carry
and overflow condition code are implicitly implied by bit 32 and 33
in the ALU register. AND THIS WORK. However, this prevent the users
from setting these flags. MIPS does not offer neither explicit PC nor
stack ( and hence no SP ).