Re: [Qemu-devel] sh4: more patches

[Thiemo Seufer <ths@networkno.de>]

Magnus Damm wrote:
> Hi everyone,
> 
> Here comes a few more patches for the sh4 emulator. The should be
> applied on top of the patches that I posted a few weeks ago:
> 
> http://www.mail-archive.com/qemu-devel@nongnu.org/msg10830.html
> 
> Good news is that the user space emulator is in a much better shape
> now - with all the patches applied I'm successfully running a static
> busybox binary compiled for sh4 using qemu-sh4.
> 
> The method used to locate emulation bugs may be of value for other
> fellow qemu hackers. I've written a small gdb script that single steps
> in an endless loop dumping registers between each instruction. Then
> I've used this script on both real target hardware (using gdbserver)
> and using the gdbstub provided by qemu. Finally the traces have been
> compared. I have more patches for this if anyone is interested...
> 
> The patches attached in this email contain the following fixes:
> 
> - sh4: Emulate more fpu opcodes
> - sh4: Swap word order when accessing double floats

Doesn't this one also depend on the host endianness?


Thiemo