GNU compiler for 68360 and 820 cpus

[Mark Bracey]

Ken,

How have you been?

I used to work for Microtec and after that,  I also used to be Director of Product Development at SDS.  

Just my opinion, XRAY is more flexible via it's macro language, but is (was) much much harder to use.  

SingleStep from SDS isn't AS flexible, but is much much easier to use. It also is much more accurate in it's processor timing.
SingleStep supports IEEE695 and ELF/DWARF, which may or may not work with GCC.  Since it's been a year since I was at SDS, I don't know the current level of support for ELF/DWARF but I know that the GCC implementation was missing some of the debug information required for stack back tracing.

Mark Bracey



> AFAIK the m68k simulator you mention is the only free m68k simulator still
> being developed/supported by anyone.  Last time I looked for one, the
> only option I found was the one from SDS.

Presumably, you are talking about commercial ones here, since SDS 
isn't free. There are quite a few around - my recommendation would be 
to check Embedded Systems Programming magazine (especially the buyers 
guide issue) for commercial simulators, if that's what you are 
interested in. Clearly, SDS falls into this category. The one I am 
most familiar with is Xray from Microtec, which is known to support 
GCC. A much better debugger than GDB, too, but I will admit to being 
biased in this area, since I used to be Director of Product 
Development at Microtec.

> As I recall, both product lines were Windows-based.  I seem to recall that
> the m68k was available under some unix's but there were some gotcha's under
> unix.

But there are other commercial 68K simulators available on various 
Unix platforms (see above).


> Offhand, I don't even remember what the companies anacronyms stand for.

SDS = Software Development Systems
SSI = Systems and Software, Inc.

-Ken

Kenneth F. Greenberg, President
California Advanced Software Tools, Inc.
Los Gatos, CA, USA