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- Path: millenium.texas.net!tweeks
- From: tweeks@millenium.texas.net (Thomas Weeks)
- Newsgroups: comp.sys.amiga.emulations
- Subject: Re: There is *NO* Amiga Emulation!
- Date: 7 Feb 1996 22:28:38 GMT
- Organization: Texas Networking, Inc.
- Message-ID: <4fb92m$aqb@nntp.texas.net>
- References: <DMEn9F.I1A@hermes.hrz.uni-bielefeld.de>
- NNTP-Posting-Host: millenium.texas.net
- X-Newsreader: TIN [version 1.2 PL2]
-
- Solar (solar@dee.hrz.uni-bielefeld.de) wrote:
- : Hey guys, I get fed up reading about UAE.
- : It is *NO* Amiga Emulation, for Christ sake!
- : Read your own mails, UAE-freaks: On a SPARC station, UAE
- : runs at *80%* of an (MC68000/7 MHz) A500.
- : That means, on a powerplattform like the SPARC, you are
- : still not able to emulate 7 MHz 68000 coding.
- : Yes, demos run. Yes, you can copy AmigaFS to MS-DOS
- : diskettes.
- : No, it is not an emulation.
-
- This IS THE NATURE of cross processor emualtion... ask ANY computer science
- major... even with binary transpositioning you usually do not approach a
- 50% ratio of emulated power/platform power.
-
-
- : What I call an Emulation is something that does not only
- : emulate the OS and enables sofware to run. Something can
- : be called an Emulator that can copy the *speed* of a system,
- : too.
-
- Then you definition of "emulation" is incorrect...
-
- You should study what cross processor emulation REQUIRES of the base
- machine.... then you could appreciate WHY these speed differences exist!
-
- : Yes, now you will say "wait until the P6 (or whatever)
- : CPU with xxx MHz, then wel will emulate 100% of an A500".
- : This is NUTS. Less than 5% of the original CPU power is
- : left while doing the emulation (P133 vs. 7 MHz 68000).
-
- again.. read above...
-
- : Look at Shapeshifter, which is sometimes even *FASTER*
- : than a Mac with the same CPU. Look at PC Task, which keeps -
- : how much? - say 20% of the CPU power.
-
- YES! This is because it is not DOING cross processor emulation! It is
- simply patching a Mac ROM into the RAM area, and running a couple of small
- hardware patches (as compares to cross proces. emul.) to get the whole
- emulator up and running.
-
- The Mac is based on the 68xxx processor.. SO IS THE AMIGA!
-
- All the EMULATOR needs to do is substitute the OS and GUI! Not try and act
- like an entire different processor!
-
- This is why Mac Emulators on the Amiga run so fast and why IBM emulators
- (Intel based machines) run so SLOWLY...
-
-
- : THAT are emulators. UAE is a project. A nice one, granted,
- : but not any serious emulating software. What do you want
- : to do with UAE? "Gee, look, I can emulate an Amiga." Clicking
- : around on the workbench a bit and then kicking the software
- : out to return to DOS.
-
- Not happy with it? Program you own!
-
-
- : The Amiga can emulate the Mac and run the software at satis-
- : fying speeds. With a bridgeboard it can run PC software at
- : satisfying speeds.
-
- BECASUE THE BB is a HARDWARE emulator (and IBM on a card) NOT a software
- emulator like PCTask!
-
- : It can emulate an Atari, a C64...
-
- Again... Atari and C64 are both Motorolla processors! Not as intesive as
- Intel emulation!
-
-
- : I still see no way a PC will ever be able to emulate an Amiga
- : *AT SATISFYING SPEEDS*.
-
- Part of the reason is because that for a machine to emulate the Amiga
- it must not only cross xlate for the processor, but it must ALSO emulate the
- special HARDWARE CHIPS that makes the Amiga so powerful! PAULA, GARY,
- AGNUS, DENISE, etc!
-
-
- : Heck, surely any computer can "emulate" anything on the market.
- : My old C64 can emulate an Amiga. But not at any speed worth
- : buying the software.
-
- : Get lost.
-
- You obviously have no technical understanding of the subject that you are
- blindly bashing....
-
-
- : --
- : Martin Baute
-
-
- : IMPORTANT: I am sorry if I hurt anybodys feelings. But I cannot stand
- : those PC-users hopping around and boasting themselves with an emulation
- : with an efficiency of less than 5%...
-
- : Come back when you have an emulation for a MC68030/50 MHz Amiga. Then
- : we talk buisness.
-
- This will not happen until the Amiga goes to a generic hardware platform
- like a pure PPC60x processor and no proprietary CUSTOM IC's like the
- Agnus and the like...
-
- Tom D Tek 7Bu)
-
-
- __________________________________________________________________________
- / Thomas W. Weeks | __ Commodore Amiga 500/030 40MHz \
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- | Email h:tweeks@texas.net |"Amiga, The Computer for the Creative Mind"TM |
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