From 67af710ee4b5dac767d6e70367f75abd1976f490 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se> Date: Fri, 15 Feb 2002 23:56:35 +0100 Subject: [PATCH] (_aes_crypt): Renamed more variables in the inner loop. Now the primary variables are t0, t1, t2, t3. (t1, t2 and t3 done so far). Rev: src/nettle/sparc/aes.asm:1.36 --- sparc/aes.asm | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/sparc/aes.asm b/sparc/aes.asm index 26ff6af2..919c8d7f 100644 --- a/sparc/aes.asm +++ b/sparc/aes.asm @@ -31,7 +31,9 @@ define(i, %l5) ! Teporaries define(t1, %o1) +define(t2, %o2) define(t3, %o3) +define(idx, %o4) _aes_crypt: ! Why -136? @@ -105,7 +107,7 @@ _aes_crypt: ! This instruction copied to the delay slot of the branch here. mov 0, i .Lround_loop: - add T, AES_SIDX3, %o2 + add T, AES_SIDX3, idx .Linner_loop: ! The comments mark which j in T->table[j][ Bj(wtxt[IDXi(i)]) ] ! the instruction is a part of. @@ -114,23 +116,23 @@ _aes_crypt: ! register for that sub-expression. True for j==1,3. ! AES_SIDX1 - ld [%o2-32], t1 ! 1 + ld [idx-32], t1 ! 1 ! AES_SIDX2 - ld [%o2-16], %o4 ! 2 + ld [idx-16], t2 ! 2 ! wtxt[IDX1...] add wtxt, t1, t1 ! 1 ldub [t1+2], t1 ! 1 ! AES_SIDX3 - ld [%o2], t3 ! 3 + ld [idx], t3 ! 3 sll t1, 2, t1 ! 1 ! wtxt[i] ld [wtxt+i], %o5 ! 0 ! wtxt[IDX2...] - lduh [wtxt+%o4], %g3 ! 2 + lduh [wtxt+t2], t2 ! 2 and %o5, 255, %o5 ! 0 @@ -142,18 +144,18 @@ _aes_crypt: ld [T+%o5], %g2 ! 0 add t1, AES_TABLE1, t1 ! 1 - and %g3, 255, %g3 ! 2 + and t2, 255, t2 ! 2 ld [T+t1], t1 ! 1 - sll %g3, 2, %g3 ! 2 - add %g3, AES_TABLE2, %g3 ! 2 - ld [T+%g3], %o0 ! 2 + sll t2, 2, t2 ! 2 + add t2, AES_TABLE2, t2 ! 2 + ld [T+t2], t2 ! 2 sll t3, 2, t3 ! 3 add t3, AES_TABLE3, t3 ! 3 ld [T+t3], t3 ! 3 xor %g2, t1, %g2 ! 0, 1 - xor %g2, %o0, %g2 ! 0, 1, 2 + xor %g2, t2, %g2 ! 0, 1, 2 - add %o2, 4, %o2 + add idx, 4, idx ! ! Fetch roundkey ! sll round, 4, %o5 -- GitLab