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| author | Andy Polyakov <appro@openssl.org> | 2016-05-15 17:01:15 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2016-05-19 22:33:00 +0200 |
| commit | e33826f01bd78af76e0135c8dfab3387927a82bb (patch) | |
| tree | a44459e3859610fe7ce35bc4923d8af6d6110e09 /crypto/sparccpuid.S | |
| parent | 2e6d7799ffc47604d06e0465afeb84b91aff8006 (diff) | |
| download | openssl-new-e33826f01bd78af76e0135c8dfab3387927a82bb.tar.gz | |
Add assembly CRYPTO_memcmp.
GH: #102
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/sparccpuid.S')
| -rw-r--r-- | crypto/sparccpuid.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/crypto/sparccpuid.S b/crypto/sparccpuid.S index 6f1dded8e2..f48d860159 100644 --- a/crypto/sparccpuid.S +++ b/crypto/sparccpuid.S @@ -440,6 +440,40 @@ OPENSSL_cleanse: .type OPENSSL_cleanse,#function .size OPENSSL_cleanse,.-OPENSSL_cleanse +.global CRYPTO_memcmp +.align 16 +CRYPTO_memcmp: + cmp %o2,0 +#ifdef ABI64 + beq,pn %xcc,.Lno_data +#else + beq .Lno_data +#endif + xor %g1,%g1,%g1 + nop + +.Loop_cmp: + ldub [%o0],%o3 + add %o0,1,%o0 + ldub [%o1],%o4 + add %o1,1,%o1 + subcc %o2,1,%o2 + xor %o3,%o4,%o4 +#ifdef ABI64 + bnz %xcc,.Loop_cmp +#else + bnz .Loop_cmp +#endif + or %o4,%g1,%g1 + + sub %g0,%g1,%g1 + srl %g1,31,%g1 +.Lno_data: + retl + mov %g1,%o0 +.type CRYPTO_memcmp,#function +.size CRYPTO_memcmp,.-CRYPTO_memcmp + .global _sparcv9_vis1_instrument_bus .align 8 _sparcv9_vis1_instrument_bus: |