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From: gag@manta.NOSC.MIL (Gary A. Gilbreath)
Newsgroups: comp.sys.m68k
Subject: 68020 emulators
Message-ID: <286@manta.NOSC.MIL>
Date: Thu, 26-Nov-87 16:23:33 EST
Article-I.D.: manta.286
Posted: Thu Nov 26 16:23:33 1987
Date-Received: Sun, 29-Nov-87 17:22:10 EST
Organization: Naval Ocean Systems Center, San Diego
Lines: 23
Keywords: emulator

We are looking for a 68020 emulator.  It must have the following capabilities:

	* Must run at 16.67 MHz or higher with 0 wait states (target memory)
	* 2k trace memory, preferably time-stamped to 1 usec resolution
	* Able to run with cache enabled or disabled
	* Trace before, about or after an event
	* Ability to trap reads or writes to a range of addresses
	* All the usual breakpoint or trace qualifications
	* Debugging tools must run on an IBM AT
	* Symbolic debug required, source level preferred.

We have an HP 64000 68000 emulator and are happy with it, but the debugging
tools don't run on a PC, so we don't want another HP emulator.  We are looking
at the Atron, Microtec and Applied Microsystems emulators.  Does anyone
have any experience with these?  Are there any others that I've missed?

Also, is there anything I should look out for?  I'm quite familiar with
the prefetch/unexecuted instruction problems on the 68000, but are there
any 68020 specific problems I should watch out for?

Thanks,

Gary Gilbreath, gag@nosc.mil