Re: Illegal instructions for 68000 generated with gcc -qrtems -m68000

[Joel Sherrill <joel dot sherrill at OARcorp dot com>]

Richard Pack wrote:
> 
> I have been using gcc  linux pc (host) -> m68k (target) cross compiler
> to compile a simple ADA program to run with the RTEMS operating system
> on a 68000 based SBC. I have the above options to gcc in my Makefile but
> 
> the compiler produces extb  instructions (op code 0x49XX) which are
> illegal for the 68000 (valid for 68020 etc) is there a switch to prevent
> 
> this? Looking at the help file I can't see anything appropriate.Using
> 68000 code two ext would be required  to take a byte to a long. I would
> have assumed the -m68000 would do it.
> Thanks for anticipated help,

Since you mention compiling Ada, am I correct in remembering that you
are using gcc 2.8.1?  

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Joel Sherrill, Ph.D.             Director of Research & Development
joel@OARcorp.com                 On-Line Applications Research
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