x86/crypto/twofish-x86_64-asm_64.S

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
7 .file "twofish-x86_64-asm.S"
11 #include <asm/asm-offsets.h>
25 #define k	4128	/* key 1-32 ( word ) */
50 /* performs input whitening */
54 /* performs input whitening */
60  * a input register containing a (rotated 16)
61  * b input register containing b
62  * c input register containing c
63  * d input register containing d (already rol $1)
82 	ror	$15,		b ## D;\
90 	rol	$15,		c ## D;\
95  * a input register containing a(rotated 16)
96  * b input register containing b
97  * c input register containing c
98  * d input register containing d (already rol $1)
133  * a input register containing a
134  * b input register containing b (rotated 16)
135  * c input register containing c (already rol $1)
136  * d input register containing d
155 	ror	$15,		a ## D;\
165 	rol	$15,		d ## D;
168  * a input register containing a
169  * b input register containing b
170  * c input register containing c (already rol $1)
171  * d input register containing d
210 	/* %rdx contains the input address */
211 	/* ctx address is moved to free one non-rex register
241 	encrypt_last_round(R2,R3,R0,R1,15*8);
263 	/* %rdx contains the input address */
264 	/* ctx address is moved to free one non-rex register
279 	decrypt_round(R0,R1,R2,R3,15*8);