z8k simulator broken

[Daniel Jacobowitz]

On Wed, Jan 15, 2003 at 03:15:45PM +1030, Alan Modra wrote:
> On Tue, Jan 14, 2003 at 11:28:18PM -0500, Daniel Jacobowitz wrote:
> > Did you ever get a chance to look at the z8k sim problem?
> 
> No, I didn't.  Andrew told me that it wasn't that important, and for me
> to go and fix something else.  Haven't done the "something else",
> either.  :)  Knowing what I changed, your patch looks good to me.

For the curious (why would you be curious?  I don't know.  I don't even
know why I started doing this!) I don't know if this simulator was ever
able to run GDB tests or simple newlib binaries but my guess is not
recently.

A z8002 binary (gdb.base/break) has a .text section of size 0xeb24 or
so.  The heap is 0x5000, the stack is 0x1000, and AFAICT a z8002 has
only 0x10000 memory.

A z8001 has much more memory available but only in 64k segments, and
.text is:
  0 .text         00019a94  00000000  00000000  00000120  2**1
                  CONTENTS, ALLOC, LOAD, CODE

i.e. much more than the one segment it can use.


I was trying to multi-arch the z8k on a lark, but it's not enough of a
lark to try to get around _that_.  Let it die.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer