From f0ddc75299076fdfeace6984b93cdf95dc504e69 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niels=20M=C3=B6ller?= Date: Wed, 15 May 2002 22:39:08 +0200 Subject: * sparc/aes.asm (_aes_crypt): Unrolled final loop, preparing for optimizations. (_aes_crypt): Eliminated i from forst copy of the loop. Some cleanup. (_aes_crypt): And from second copy. (_aes_crypt): And from third. (_aes_crypt): And fourth. Rev: src/nettle/sparc/aes.asm:1.90 --- sparc/aes.asm | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/sparc/aes.asm b/sparc/aes.asm index 006cd962..2a72eaa9 100644 --- a/sparc/aes.asm +++ b/sparc/aes.asm @@ -419,20 +419,18 @@ define(i, round) stb t0, [dst] add dst, 4, dst - ld [IDX1+i], t1 ! 1 - C i = 3 - ld [IDX1+i], t1 ! 1 + ld [IDX1+12], t1 ! 1 - ! IDX2(j) = j XOR 2 xor i, 8, t2 add wtxt, t1, t1 ! 1 ldub [t1+2], t1 ! 1 ld [wtxt+i], t0 ! 0 - lduh [wtxt+t2], t2 ! 2 + ! IDX2(j) = j XOR 2 + lduh [wtxt+4], t2 ! 2 and t0, 255, t0 ! 0 - ld [IDX3 + i], t3 ! 3 + ld [IDX3 + 12], t3 ! 3 and t2, 255, t2 ! 2 ldub [T+t1], t1 ! 1 @@ -446,7 +444,7 @@ define(i, round) sll t2, 16, t2 ! 2 or t0, t2, t0 ! 0, 1, 2 - ld [key + i], t2 + ld [key + 12], t2 sll t3, 24, t3 ! 3 or t0, t3, t0 ! 0, 1, 2, 3 @@ -463,7 +461,7 @@ define(i, round) stb t0, [dst] add dst, 4, dst - ld [IDX1+i], t1 ! 1 + C ld [IDX1+i], t1 ! 1 C Unrolled final loop ends -- cgit v1.2.1