diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-01-06 11:44:44 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:13 +1100 |
| commit | 3398b7428ba3964f6150590cde46d45c68d2fc25 (patch) | |
| tree | cd08080d18dd0c742f9ad1a64677815a924672c7 /target/ppc/int_helper.c | |
| parent | 8ad901e55884055e0ec5ee7f47b955f42b66cb9a (diff) | |
target-ppc: Add xxinsertw instruction
xxinsertw: VSX Vector Insert 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 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 07832baff0..81f134bc4b 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -2027,6 +2027,31 @@ void helper_xxextractuw(CPUPPCState *env, target_ulong xtn, putVSR(xtn, &xt, env); } +void helper_xxinsertw(CPUPPCState *env, target_ulong xtn, + target_ulong xbn, uint32_t index) +{ + ppc_vsr_t xt, xb; + size_t es = sizeof(uint32_t); + int ins_index, i = 0; + + getVSR(xbn, &xb, env); + getVSR(xtn, &xt, env); + +#if defined(HOST_WORDS_BIGENDIAN) + ins_index = index; + for (i = 0; i < es && ins_index < 16; i++, ins_index++) { + xt.u8[ins_index] = xb.u8[8 - es + i]; + } +#else + ins_index = 15 - index; + for (i = es - 1; i >= 0 && ins_index >= 0; i--, ins_index--) { + xt.u8[ins_index] = xb.u8[8 + i]; + } +#endif + + putVSR(xtn, &xt, env); +} + #define VEXT_SIGNED(name, element, mask, cast, recast) \ void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \ { \ |