diff options
Diffstat (limited to 'arch/i386/crypto/aes-i586-asm.S')
-rw-r--r-- | arch/i386/crypto/aes-i586-asm.S | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/arch/i386/crypto/aes-i586-asm.S b/arch/i386/crypto/aes-i586-asm.S index 7b73c67cb4e8..911b15377f2e 100644 --- a/arch/i386/crypto/aes-i586-asm.S +++ b/arch/i386/crypto/aes-i586-asm.S | |||
@@ -255,18 +255,17 @@ aes_enc_blk: | |||
255 | xor 8(%ebp),%r4 | 255 | xor 8(%ebp),%r4 |
256 | xor 12(%ebp),%r5 | 256 | xor 12(%ebp),%r5 |
257 | 257 | ||
258 | sub $8,%esp // space for register saves on stack | 258 | sub $8,%esp // space for register saves on stack |
259 | add $16,%ebp // increment to next round key | 259 | add $16,%ebp // increment to next round key |
260 | sub $10,%r3 | 260 | cmp $12,%r3 |
261 | je 4f // 10 rounds for 128-bit key | 261 | jb 4f // 10 rounds for 128-bit key |
262 | add $32,%ebp | 262 | lea 32(%ebp),%ebp |
263 | sub $2,%r3 | 263 | je 3f // 12 rounds for 192-bit key |
264 | je 3f // 12 rounds for 128-bit key | 264 | lea 32(%ebp),%ebp |
265 | add $32,%ebp | 265 | |
266 | 266 | 2: fwd_rnd1( -64(%ebp) ,ft_tab) // 14 rounds for 256-bit key | |
267 | 2: fwd_rnd1( -64(%ebp) ,ft_tab) // 14 rounds for 128-bit key | ||
268 | fwd_rnd2( -48(%ebp) ,ft_tab) | 267 | fwd_rnd2( -48(%ebp) ,ft_tab) |
269 | 3: fwd_rnd1( -32(%ebp) ,ft_tab) // 12 rounds for 128-bit key | 268 | 3: fwd_rnd1( -32(%ebp) ,ft_tab) // 12 rounds for 192-bit key |
270 | fwd_rnd2( -16(%ebp) ,ft_tab) | 269 | fwd_rnd2( -16(%ebp) ,ft_tab) |
271 | 4: fwd_rnd1( (%ebp) ,ft_tab) // 10 rounds for 128-bit key | 270 | 4: fwd_rnd1( (%ebp) ,ft_tab) // 10 rounds for 128-bit key |
272 | fwd_rnd2( +16(%ebp) ,ft_tab) | 271 | fwd_rnd2( +16(%ebp) ,ft_tab) |
@@ -334,18 +333,17 @@ aes_dec_blk: | |||
334 | xor 8(%ebp),%r4 | 333 | xor 8(%ebp),%r4 |
335 | xor 12(%ebp),%r5 | 334 | xor 12(%ebp),%r5 |
336 | 335 | ||
337 | sub $8,%esp // space for register saves on stack | 336 | sub $8,%esp // space for register saves on stack |
338 | sub $16,%ebp // increment to next round key | 337 | sub $16,%ebp // increment to next round key |
339 | sub $10,%r3 | 338 | cmp $12,%r3 |
340 | je 4f // 10 rounds for 128-bit key | 339 | jb 4f // 10 rounds for 128-bit key |
341 | sub $32,%ebp | 340 | lea -32(%ebp),%ebp |
342 | sub $2,%r3 | 341 | je 3f // 12 rounds for 192-bit key |
343 | je 3f // 12 rounds for 128-bit key | 342 | lea -32(%ebp),%ebp |
344 | sub $32,%ebp | ||
345 | 343 | ||
346 | 2: inv_rnd1( +64(%ebp), it_tab) // 14 rounds for 128-bit key | 344 | 2: inv_rnd1( +64(%ebp), it_tab) // 14 rounds for 256-bit key |
347 | inv_rnd2( +48(%ebp), it_tab) | 345 | inv_rnd2( +48(%ebp), it_tab) |
348 | 3: inv_rnd1( +32(%ebp), it_tab) // 12 rounds for 128-bit key | 346 | 3: inv_rnd1( +32(%ebp), it_tab) // 12 rounds for 192-bit key |
349 | inv_rnd2( +16(%ebp), it_tab) | 347 | inv_rnd2( +16(%ebp), it_tab) |
350 | 4: inv_rnd1( (%ebp), it_tab) // 10 rounds for 128-bit key | 348 | 4: inv_rnd1( (%ebp), it_tab) // 10 rounds for 128-bit key |
351 | inv_rnd2( -16(%ebp), it_tab) | 349 | inv_rnd2( -16(%ebp), it_tab) |