diff options
author | Tom Musta <tommusta@gmail.com> | 2014-01-07 10:05:49 -0600 |
---|---|---|
committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:38 +0100 |
commit | 86ba37edcb6556b124840f04d180a34ffcc71086 (patch) | |
tree | 2a6d8f18361cd4cca89963807e1c6e54ec4faab9 /target-ppc/int_helper.c | |
parent | 7ee19fb9d682689d36c849576c808cf92e3bae40 (diff) | |
download | qemu-86ba37edcb6556b124840f04d180a34ffcc71086.zip qemu-86ba37edcb6556b124840f04d180a34ffcc71086.tar.gz qemu-86ba37edcb6556b124840f04d180a34ffcc71086.tar.bz2 |
target-ppc: Add ISA2.06 bpermd Instruction
This patch adds the Bit Permute Doubleword (bpermd) instruction,
which was introduced in Power ISA 2.06 as part of the base 64-bit
architecture.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/int_helper.c')
-rw-r--r-- | target-ppc/int_helper.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c index e50bdd2..0e7afb3 100644 --- a/target-ppc/int_helper.c +++ b/target-ppc/int_helper.c @@ -53,6 +53,26 @@ target_ulong helper_cntlzd(target_ulong t) } #endif +#if defined(TARGET_PPC64) + +uint64_t helper_bpermd(uint64_t rs, uint64_t rb) +{ + int i; + uint64_t ra = 0; + + for (i = 0; i < 8; i++) { + int index = (rs >> (i*8)) & 0xFF; + if (index < 64) { + if (rb & (1ull << (63-index))) { + ra |= 1 << i; + } + } + } + return ra; +} + +#endif + target_ulong helper_cmpb(target_ulong rs, target_ulong rb) { target_ulong mask = 0xff; |