[RFC PATCH 5/8] poweprc/lib/quad: Provide macros for lq/stq
Segher Boessenkool
segher at kernel.crashing.org
Fri Feb 26 02:44:44 AEDT 2021
On Thu, Feb 25, 2021 at 02:10:03PM +1100, Daniel Axtens wrote:
> +#define PPC_RAW_LQ(t, a, dq) (0xe0000000 | ___PPC_RT(t) | ___PPC_RA(a) | (((dq) & 0xfff) << 3))
Please keep the operand order the same as for the assembler insns? So
t,dq,a here.
It should be ((dq) & 0x0fff) << 4) .
> +#define PPC_RAW_STQ(t, a, ds) (0xf8000002 | ___PPC_RT(t) | ___PPC_RA(a) | (((ds) & 0xfff) << 3))
And t,ds,a here. (But it should use "s" instead of "t" preferably, and
use ___PPC_RS, because it is a source field, not a target).
It should be ((ds) & 0x3fff) << 2) as well.
Segher
More information about the Linuxppc-dev
mailing list