[PATCH] powerpc: emulate power5 popcntb instruction

[Arnd Bergmann]

On Saturday 19 August 2006 21:10, segher at gate.crashing.org wrote:
> > Is that the right check? The other similar traps check against a
> > mask of 0x7c0007fe.
> 
> I hope you mean 0xfc0007fe?
> 

No, the code in question is 

#define INST_MFSPR_PVR­·­·······0x7c1f42a6
#define INST_MFSPR_PVR_MASK­····0xfc1fffff

#define INST_DCBA­······­·······0x7c0005ec
#define INST_DCBA_MASK­·­·······0x7c0007fe

#define INST_MCRXR­·····­·······0x7c000400
#define INST_MCRXR_MASK­­·······0x7c0007fe

#define INST_STRING­····­·······0x7c00042a
#define INST_STRING_MASK­·······0x7c0007fe
#define INST_STRING_GEN_MASK­···0x7c00067e
#define INST_LSWI­······­·······0x7c0004aa
#define INST_LSWX­······­·······0x7c00042a
#define INST_STSWI­·····­·······0x7c0005aa
#define INST_STSWX­·····­·······0x7c00052a

What does the MSB do in our instructions?

	Arnd <><