Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!tut.cis.ohio-state.edu!bloom-beacon!spdcc!ima!cfisun!lakart!dg
From: dg@lakart.UUCP (David Goodenough)
Newsgroups: comp.os.cpm
Subject: Re: Z80 Algorithms
Message-ID: <722@lakart.UUCP>
Date: 18 Oct 89 14:58:56 GMT
References: <1111@mipos3.intel.com>
Organization: Lakart Corporation, Newton, MA
Lines: 24

dbraun@cadev5.intel.com (Doug Braun ~) sez:
] black@ROM.ECSE.RPI.EDU (Jerry Glomph Black) writes:
] 
]>  (Jurjen N.E. Bos) writes:
]>>Maybe somebody is interested in this: I can multiply to unsigned 8-bit numbers
]>>in 158 clockcycles.  . . .
]>
]>Big deal! Use a 64180 (aka Z180) chip, has the MLT instruction, takes 17
]>clock cycles, or 1.85 micro seconds.  (By the way: it's a 2-byte instruction)
]>
]>Jerry Glomph Black, 8-bit terrorist
] 
] 
] Bigger deal!! Use a Z280 and do *16* bit multiplies (signed AND unsigned)
] in 25 or so clock cycles.

Yes, but are they plug in replacements for the Z80??

No, I didn't think so.
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