diff options
author | Andy Polyakov <appro@openssl.org> | 2013-10-31 11:41:26 +0100 |
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committer | Andy Polyakov <appro@openssl.org> | 2013-10-31 11:41:26 +0100 |
commit | c944f8170358ecce419045b919be604844369e36 (patch) | |
tree | 847c0ee40107b44367d7406a82d1f71b8dad7e82 | |
parent | 8ff8a829b053274124c3f2231570af3ae96806c0 (diff) |
aes/asm/aes-ppc.pl: add little-endian support.
Submitted by: Marcelo Cerri
-rw-r--r-- | crypto/aes/asm/aes-ppc.pl | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/crypto/aes/asm/aes-ppc.pl b/crypto/aes/asm/aes-ppc.pl index 18138c2c84..b38bce1b3b 100644 --- a/crypto/aes/asm/aes-ppc.pl +++ b/crypto/aes/asm/aes-ppc.pl @@ -45,6 +45,12 @@ if ($flavour =~ /64/) { $PUSH ="stw"; } else { die "nonsense $flavour"; } +$LITTLE_ENDIAN=0; +if ($flavour =~ /le$/) { + die "little-endian is 64-bit only: $flavour" if ($SIZE_T == 4); + $LITTLE_ENDIAN=1; +} + $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; ( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or ( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or @@ -361,17 +367,61 @@ $code.=<<___; bne Lenc_unaligned Lenc_unaligned_ok: +___ +$code.=<<___ if (!$LITTLE_ENDIAN); lwz $s0,0($inp) lwz $s1,4($inp) lwz $s2,8($inp) lwz $s3,12($inp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + lwz $t0,0($inp) + lwz $t1,4($inp) + lwz $t2,8($inp) + lwz $t3,12($inp) + rotlwi $s0,$t0,8 + rotlwi $s1,$t1,8 + rotlwi $s2,$t2,8 + rotlwi $s3,$t3,8 + rlwimi $s0,$t0,24,0,7 + rlwimi $s1,$t1,24,0,7 + rlwimi $s2,$t2,24,0,7 + rlwimi $s3,$t3,24,0,7 + rlwimi $s0,$t0,24,16,23 + rlwimi $s1,$t1,24,16,23 + rlwimi $s2,$t2,24,16,23 + rlwimi $s3,$t3,24,16,23 +___ +$code.=<<___; bl LAES_Te bl Lppc_AES_encrypt_compact $POP $out,`$FRAME-$SIZE_T*19`($sp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + rotlwi $t0,$s0,8 + rotlwi $t1,$s1,8 + rotlwi $t2,$s2,8 + rotlwi $t3,$s3,8 + rlwimi $t0,$s0,24,0,7 + rlwimi $t1,$s1,24,0,7 + rlwimi $t2,$s2,24,0,7 + rlwimi $t3,$s3,24,0,7 + rlwimi $t0,$s0,24,16,23 + rlwimi $t1,$s1,24,16,23 + rlwimi $t2,$s2,24,16,23 + rlwimi $t3,$s3,24,16,23 + stw $t0,0($out) + stw $t1,4($out) + stw $t2,8($out) + stw $t3,12($out) +___ +$code.=<<___ if (!$LITTLE_ENDIAN); stw $s0,0($out) stw $s1,4($out) stw $s2,8($out) stw $s3,12($out) +___ +$code.=<<___; b Lenc_done Lenc_unaligned: @@ -795,17 +845,61 @@ Lenc_compact_done: bne Ldec_unaligned Ldec_unaligned_ok: +___ +$code.=<<___ if (!$LITTLE_ENDIAN); lwz $s0,0($inp) lwz $s1,4($inp) lwz $s2,8($inp) lwz $s3,12($inp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + lwz $t0,0($inp) + lwz $t1,4($inp) + lwz $t2,8($inp) + lwz $t3,12($inp) + rotlwi $s0,$t0,8 + rotlwi $s1,$t1,8 + rotlwi $s2,$t2,8 + rotlwi $s3,$t3,8 + rlwimi $s0,$t0,24,0,7 + rlwimi $s1,$t1,24,0,7 + rlwimi $s2,$t2,24,0,7 + rlwimi $s3,$t3,24,0,7 + rlwimi $s0,$t0,24,16,23 + rlwimi $s1,$t1,24,16,23 + rlwimi $s2,$t2,24,16,23 + rlwimi $s3,$t3,24,16,23 +___ +$code.=<<___; bl LAES_Td bl Lppc_AES_decrypt_compact $POP $out,`$FRAME-$SIZE_T*19`($sp) +___ +$code.=<<___ if ($LITTLE_ENDIAN); + rotlwi $t0,$s0,8 + rotlwi $t1,$s1,8 + rotlwi $t2,$s2,8 + rotlwi $t3,$s3,8 + rlwimi $t0,$s0,24,0,7 + rlwimi $t1,$s1,24,0,7 + rlwimi $t2,$s2,24,0,7 + rlwimi $t3,$s3,24,0,7 + rlwimi $t0,$s0,24,16,23 + rlwimi $t1,$s1,24,16,23 + rlwimi $t2,$s2,24,16,23 + rlwimi $t3,$s3,24,16,23 + stw $t0,0($out) + stw $t1,4($out) + stw $t2,8($out) + stw $t3,12($out) +___ +$code.=<<___ if (!$LITTLE_ENDIAN); stw $s0,0($out) stw $s1,4($out) stw $s2,8($out) stw $s3,12($out) +___ +$code.=<<___; b Ldec_done Ldec_unaligned: |