diff options
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/aes/asm/aes-ppc.pl | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/crypto/aes/asm/aes-ppc.pl b/crypto/aes/asm/aes-ppc.pl index 8a7a2218f6..903075ec37 100644 --- a/crypto/aes/asm/aes-ppc.pl +++ b/crypto/aes/asm/aes-ppc.pl @@ -880,6 +880,12 @@ Lppc_AES_decrypt_compact: addi $key,$key,16 ori $mask80,$mask80,0x8080 ori $mask1b,$mask1b,0x1b1b +___ +$code.=<<___ if ($SIZE_T==8); + insrdi $mask80,$mask80,32,0 + insrdi $mask1b,$mask1b,32,0 +___ +$code.=<<___; mtctr $acc00 .align 4 Ldec_compact_loop: @@ -942,8 +948,71 @@ Ldec_compact_loop: addi $key,$key,16 bdz Ldec_compact_done +___ +$code.=<<___ if ($SIZE_T==8); + # vectorized permutation improves decrypt performance by 10% + insrdi $s0,$s1,32,0 + insrdi $s2,$s3,32,0 and $acc00,$s0,$mask80 # r1=r0&0x80808080 + and $acc02,$s2,$mask80 + srdi $acc04,$acc00,7 # r1>>7 + srdi $acc06,$acc02,7 + andc $acc08,$s0,$mask80 # r0&0x7f7f7f7f + andc $acc10,$s2,$mask80 + sub $acc00,$acc00,$acc04 # r1-(r1>>7) + sub $acc02,$acc02,$acc06 + add $acc08,$acc08,$acc08 # (r0&0x7f7f7f7f)<<1 + add $acc10,$acc10,$acc10 + and $acc00,$acc00,$mask1b # (r1-(r1>>7))&0x1b1b1b1b + and $acc02,$acc02,$mask1b + xor $acc00,$acc00,$acc08 # r2 + xor $acc02,$acc02,$acc10 + + and $acc04,$acc00,$mask80 # r1=r2&0x80808080 + and $acc06,$acc02,$mask80 + srdi $acc08,$acc04,7 # r1>>7 + srdi $acc10,$acc06,7 + andc $acc12,$acc00,$mask80 # r2&0x7f7f7f7f + andc $acc14,$acc02,$mask80 + sub $acc04,$acc04,$acc08 # r1-(r1>>7) + sub $acc06,$acc06,$acc10 + add $acc12,$acc12,$acc12 # (r2&0x7f7f7f7f)<<1 + add $acc14,$acc14,$acc14 + and $acc04,$acc04,$mask1b # (r1-(r1>>7))&0x1b1b1b1b + and $acc06,$acc06,$mask1b + xor $acc04,$acc04,$acc12 # r4 + xor $acc06,$acc06,$acc14 + + and $acc08,$acc04,$mask80 # r1=r4&0x80808080 + and $acc10,$acc06,$mask80 + srdi $acc12,$acc08,7 # r1>>7 + srdi $acc14,$acc10,7 + sub $acc08,$acc08,$acc12 # r1-(r1>>7) + sub $acc10,$acc10,$acc14 + andc $acc12,$acc04,$mask80 # r4&0x7f7f7f7f + andc $acc14,$acc06,$mask80 + add $acc12,$acc12,$acc12 # (r4&0x7f7f7f7f)<<1 + add $acc14,$acc14,$acc14 + and $acc08,$acc08,$mask1b # (r1-(r1>>7))&0x1b1b1b1b + and $acc10,$acc10,$mask1b + xor $acc08,$acc08,$acc12 # r8 + xor $acc10,$acc10,$acc14 + + xor $acc00,$acc00,$s0 # r2^r0 + xor $acc02,$acc02,$s2 + xor $acc04,$acc04,$s0 # r4^r0 + xor $acc06,$acc06,$s2 + + extrdi $acc01,$acc00,0,32 + extrdi $acc03,$acc02,0,32 + extrdi $acc05,$acc04,0,32 + extrdi $acc07,$acc06,0,32 + extrdi $acc09,$acc08,0,32 + extrdi $acc11,$acc10,0,32 +___ +$code.=<<___ if ($SIZE_T==4); + and $acc00,$s0,$mask80 # r1=r0&0x80808080 and $acc01,$s1,$mask80 and $acc02,$s2,$mask80 and $acc03,$s3,$mask80 @@ -1038,6 +1107,8 @@ Ldec_compact_loop: xor $acc05,$acc05,$s1 xor $acc06,$acc06,$s2 xor $acc07,$acc07,$s3 +___ +$code.=<<___; rotrwi $s0,$s0,8 # = ROTATE(r0,8) rotrwi $s1,$s1,8 rotrwi $s2,$s2,8 |