target/ppc: use existing VsrD() macro to eliminate HI_IDX and LO_IDX from dfp_helper.c
Switch over all accesses to the decimal numbers held in struct PPC_DFP from
using HI_IDX and LO_IDX to using the VsrD() macro instead. Not only does this
allow the compiler to ensure that the various dfp_* functions are being passed
a ppc_vsr_t rather than an arbitrary uint64_t pointer, but also allows the
host endian-specific HI_IDX and LO_IDX to be completely removed from
dfp_helper.c.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20190926185801.11176-7-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>