Re: [Nasm-devel] [PATCH 6/7] AVX-512: Change the data type for instruction flags

[Song, J. K. <jin...@in...>]

> PTEST and ROUND[PS|PD|SS|SD] were part of SSE4.1 and SSE5A.
Thanks for letting me know. NASM does not have a definition of SSE5A though. Is NASM missing SSE5A intentionally?

> 
> XTEST is part of RTM and HLE.
I made UNDOC and HLE bit masks for this reason while others are values.

#define IF_UNDOC        0x8000000000UL    /* it's an undocumented instruction */
#define IF_HLE          0x4000000000UL    /* HACK NEED TO REORGANIZE THESE BITS */

So do you suggest make them all bit masks to lift this kind of limitation (prohibiting two different types)? Since it became 64bit, there are enough space for now. But I worried the case that it runs out quickly.

Another question is that 0x00FFC000UL seemed not used anywhere now. Are those bits reserved?