x86/crypto/twofish-i586-asm_32.S

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
7 .file "twofish-i586-asm.S"
11 #include <asm/asm-offsets.h>
15 #define in_blk    12  /* input byte array address parameter*/
31 #define k	4128	/* key 1-32 ( word ) */
52 /* performs input whitening */
56 /* performs input whitening */
61  * a input register containing a (rotated 16)
62  * b input register containing b
63  * c input register containing c
64  * d input register containing d (already rol $1)
84 	ror	$15,		b ## D;\
93 	rol	$15,		c ## D;\
98  * a input register containing a (rotated 16)
99  * b input register containing b
100  * c input register containing c
101  * d input register containing d (already rol $1)
136  * a input register containing a
137  * b input register containing b (rotated 16)
138  * c input register containing c
139  * d input register containing d (already rol $1)
159 	ror	$15,		a ## D;\
170 	rol	$15,		d ## D;
173  * a input register containing a
174  * b input register containing b (rotated 16)
175  * c input register containing c
176  * d input register containing d (already rol $1)
218 	mov     in_blk+16(%esp),%edi	/* input address in edi */
246 	encrypt_last_round(R2,R3,R0,R1,15*8);
275 	mov     in_blk+16(%esp),%edi	/* input address in edi */
288 	decrypt_round(R0,R1,R2,R3,15*8);