Article View: comp.sys.mac
Article #44772Re: Help: Softwr to Run DOS on MAC
From: Oivind Toien
Date: Thu, 11 Jan 1990 01:35
Date: Thu, 11 Jan 1990 01:35
27 lines
1911 bytes
1911 bytes
In article <1990Jan10.014311.7148@agate.berkeley.edu>
laba-4ad@web-1c.berkeley.edu (Joseph Teo) writes:
.....a lot deleted
The best and only program so far is SoftPC which provides an excellent
emulation on a 68020/30-based Mac ..... deleted...
..The drawbacks are namely speed: on my SE/30, it produces only about 60%
the speed of a 4.77Mhz XT clone according to PC Tools and a pathetic 30%
according to Norton Speed Index. It only emulates the 8088 (actually the
......a lot deleted
In a test I found that the clock-tick rate (Int $1C) was only about
4.5 Hz which is about 1/4 of what is it should be on a PC (approx.
18Hz). I also tried to reprogram the "timer chip" to test the extent
of emulation of the hardware, but the clock-tick rate could not be
changed. The test was performed on a Mac SE30 which was temporary at
my disposal together with the Soft-PC program.
This could have serious implications on the speed of programs using the
clock-tick to time events.
Oivind
--
==================================================================
Oivind Toien, University of Oslo, Norway Phone 47-2-454732
<m_toeien_oe@use.uio.uninett> Fax 47-2-454726
<oivindt@ulrik.uio.no>
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!mcsun!sunic!nuug!ulrik!oivindtReferences:
<89360.113013REDELMAN@AUVM.BITNET> <1990Jan10.014311.7148@agate.berkeley.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!mcsun!sunic!nuug!ulrik!oivindt From: oivindt@ulrik.uio.no (Oivind Toien) Newsgroups: comp.sys.mac,comp.sys.ibm.pc Subject: Re: Help: Softwr to Run DOS on MAC Message-ID: <OIVINDT.90Jan11023546@ulrik.uio.no> Date: 11 Jan 90 01:35:46 GMT Sender: oivindt@ulrik.uio.no (Oivind Toien) Organization: University of Oslo, Norway Lines: 27 In-Reply-To: laba-4ad@web-1c.berkeley.edu's message of 10 Jan 90 01:43:11 GMT References: <89360.113013REDELMAN@AUVM.BITNET> <1990Jan10.014311.7148@agate.berkeley.edu>