X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=camellia-asm.S;h=dc558c437098b151f53c958465c6b6e1ca83e585;hb=17332291e15183d71d88ed868275e3cb53917180;hp=36701b26a1855ac3c41bce0af20ba618454d9aea;hpb=38806fc75038026e167a26eff90b6111066a3642;p=avr-crypto-lib.git

diff --git a/camellia-asm.S b/camellia-asm.S
index 36701b2..dc558c4 100644
--- a/camellia-asm.S
+++ b/camellia-asm.S
@@ -1,8 +1,26 @@
+/* camellia-asm.S */
+/*
+    This file is part of the This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
 /* 
- * File:	camellis-asm.S
- * Author:	Daniel Otte
- * Date: 	10.11.2006
- * License: GPL
+ * File:        camellis-asm.S
+ * Author:      Daniel Otte
+ * Date:        2006-11-10
+ * License:     GPLv3 or later
  * Description: Implementation of the camellia block cipher algorithm.
  * 
  */
@@ -389,26 +407,26 @@ B1 = 18
 B2 = 19
 .global camellia128_keyop_rot15
 camellia128_keyop_rot15:
-	movw r30, r24 ; Z points at LSB of kl			;-- 0
+	movw r30, r24 ; Z points at LSB of kl            ;-- 0
 	ldi r22, 2		
-2:	adiw r30, 15									;-- 15
+2:	adiw r30, 15                                     ;-- 15
 	ld  r21, Z
-	ld  r20, -Z										;-- 14
+	ld  r20, -Z                                      ;-- 14
 	movw B1, r20 ; store Backup of the 2 MSB of kl
 	ror r20
 
 	ldi r21, 14
-1:	ld r20, -Z										;-- 13..0
+1:	ld r20, -Z                                       ;-- 13..0
 	ror r20
-	std Z+2, r20									;-- (15..2)
+	std Z+2, r20                                     ;-- (15..2)
 	dec r21
 	brne 1b
 	
 	ror B2
 	ror B1
-	st Z+, B1										;-- 1
+	st Z+, B1                                        ;-- 1
 	st Z, B2
-	adiw r30, 15									;-- 16
+	adiw r30, 15                                     ;-- 16
 	
 	dec r22
 	brne 2b
@@ -495,26 +513,26 @@ B1 = 18
 B2 = 19
 .global camellia128_keyop_inv_rot15
 camellia128_keyop_inv_rot15:
-	movw r30, r24 ; Z points at LSB of kl			;-- 0
+	movw r30, r24 ; Z points at LSB of kl                ;-- 0
 	movw r26, r24 ; X also
 	ldi r22, 2		
-2:													;-- 0
-	ld  r20, Z+										;-- 0/1
-	ld  r21, Z+										;-- 1/2
+2:                                                           ;-- 0
+	ld  r20, Z+                                          ;-- 0/1
+	ld  r21, Z+                                          ;-- 1/2
 	movw B1, r20 ; store Backup of the 2 LSB of kl
 	rol r21
 
 	ldi r20, 14
-1:	ld r21, Z+										;-- 2/14..3/16
+1:	ld r21, Z+                                           ;-- 2/14..3/16
 	rol r21
-	st X+, r21										;-- (0..13)/(1..14)
+	st X+, r21                                           ;-- (0..13)/(1..14)
 	dec r20
 	brne 1b
 	
 	rol B1
 	rol B2
-	st X+, B1										;-- 14/15
-	st X+, B2										;-- 15/16
+	st X+, B1                                            ;-- 14/15
+	st X+, B2                                            ;-- 15/16
 	
 	dec r22
 	brne 2b