[PATCH] opcodes/ppc-opc.c: Add dscr and ctrl SPR mnemonics

[Peter Bergner]

On Wed, 2015-09-09 at 16:44 +1000, Anton Blanchard wrote:
> {"mftid",	XSPR(31,339, 17), XSPR_MASK, POWER,	PPCNONE,	{RT}},
> +{"mfdscr",	XSPR(31,339, 17), XSPR_MASK, POWER6,	PPCNONE,	{RT}},

Please move this above the mftid pattern above it.  We like to have it
ordered with newer instructions listed first, so if you use -many in
your assembler options, we'll use mfdscr instead of mftid.


> {"mttid",	XSPR(31,467, 17), XSPR_MASK, POWER,	PPCNONE,	{RS}},
> +{"mtdscr",	XSPR(31,467, 17), XSPR_MASK, POWER6,	PPCNONE,	{RS}},

Same here.



> +{"mfctrl",	XSPR(31,339,136), XSPR_MASK, POWER4,	PPCNONE,	{RT}},
[snip]
> +{"mtctrl",	XSPR(31,467,152), XSPR_MASK, POWER4,	PPCNONE,	{RS}},

Is there a typo in the ISA documentation with the associated SPR numbers?
All other m[tf]spr instructions use the same SPR number for both the mtspr
and mfspr instructions, except this one.

If the m[tf]crtl instructions really do have different SPR numbers,
then the patch is ok with the reordering of the m[ft]dscr lines I
mentioned above.

Peter