diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-01-06 11:44:43 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:13 +1100 |
| commit | 8ad901e55884055e0ec5ee7f47b955f42b66cb9a (patch) | |
| tree | 77ea628d14cdf33a2439b85ce559999e1165e9e4 /target/ppc/int_helper.c | |
| parent | 0f358a0710cf8fe9ebf5aed144adb3199a68e6a7 (diff) | |
target-ppc: Add xxextractuw instruction
xxextractuw: VSX Vector Extract Unsigned Word
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/int_helper.c')
| -rw-r--r-- | target/ppc/int_helper.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 14eb4e4926..07832baff0 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -2001,6 +2001,32 @@ VEXTRACT(uw, u32) VEXTRACT(d, u64) #undef VEXTRACT +void helper_xxextractuw(CPUPPCState *env, target_ulong xtn, + target_ulong xbn, uint32_t index) +{ + ppc_vsr_t xt, xb; + size_t es = sizeof(uint32_t); + uint32_t ext_index; + int i; + + getVSR(xbn, &xb, env); + memset(&xt, 0, sizeof(xt)); + +#if defined(HOST_WORDS_BIGENDIAN) + ext_index = index; + for (i = 0; i < es; i++, ext_index++) { + xt.u8[8 - es + i] = xb.u8[ext_index % 16]; + } +#else + ext_index = 15 - index; + for (i = es - 1; i >= 0; i--, ext_index--) { + xt.u8[8 + i] = xb.u8[ext_index % 16]; + } +#endif + + putVSR(xtn, &xt, env); +} + #define VEXT_SIGNED(name, element, mask, cast, recast) \ void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \ { \ |