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Re: mtsprg on BOOKE


I've never worked in the opcodes area before and I'm not sure how to implement this change. Can anyone give me a hand?

James E Wilson wrote:
On Fri, 2004-10-29 at 09:17, Jeff Baker wrote:

Why does the following assembly produce errors on BOOKE?
mtsprg 7, %r3


Looking at the sources, opcode/ppc-opc.c, I see that the mtsprg macro
only takes 2-bit sprg register numbers, which is apparently correct for
the basic ppc architecture, but not for e500.  This should probably be
conditional on the architecture choice.  I haven't looked at any
architecture or processor manuals to double check.

Meanwhile, "mtsprg7 %r3" will work. Likewise for mfsprg.


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