On 06/06/2012 10:04 PM, Paul Mackerras wrote: > On Wed, Jun 06, 2012 at 06:40:54PM +0200, Segher Boessenkool wrote: >>> +err1; dcbz r0,r3 >> >> There is no such instruction, you probably meant "dcbz 0,r3"? > > There certainly is such an instruction, though it doesn't do exactly > what a naive reader might expect. Using 0 rather than r0 or %r0 > improves readability but makes no difference to the assembler or the > cpu.
The assembler can't tell that you used r0 rather than 0, because that's handled by the preprocessor, but it seems like a bug (or at least lax error checking) that it accepts %r0 there, and that objdump decodes it as "dcbz r0,r3" rather than "dcbz 0,r3". It's also odd that objdump produces output containing "r3" (not %r3) when the assembler won't directly accept it. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
